Apparatus and method for measuring optical characteristics of teeth

• US 6,726,476 B2
• Filed: 05/25/2001
• Issued: 04/27/2004
• Est. Priority Date: 01/02/1997
• Status: Expired due to Fees

• Current Assignee: RPX Corporation
• Original Assignee: JJL Technologies, L.L.C.
• Inventors: Jung, Wayne D., Jung, Russell W., Loudermilk, Alan R.
• Primary Examiner(s): Wilson, John J.
• Application Number:
  US09/865,801
• Publication Number:
  US 20010023058A1
• Time in Patent Office: 1,068 Days
• Field of Search: 433/26, 433/29, 433/116, 433/203.1, 600/124, 600/125, 600/182, 600/477, 600/478, 356/371, 356/402, 356/405, 356/406, 356/407
• US Class Current: 433/26
• CPC Class Codes: A61B 2560/0233 Optical standards
• CPC Class Codes: A61B 2562/247 Hygienic covers, i.e. for covering the sensor or apparatus during use
• CPC Class Codes: A61B 5/0088 for oral or dental tissue
• CPC Class Codes: A61B 5/061 Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body A61B1/00158 takes precedence
• CPC Class Codes: A61B 5/4547 Evaluating teeth
• CPC Class Codes: A61C 19/04 Measuring instruments specially adapted for dentistry A61C5/44 takes precedence; testing vitality of teeth A61B5/0534; radiation diagnosis specially adapted for dentistry A61B6/51
• CPC Class Codes: A61C 19/10 Supports for artificial teeth for transport or for comparison of the colour
• CPC Class Codes: G01J 3/02 Details
• CPC Class Codes: G01J 3/0218 using optical fibers
• CPC Class Codes: G01J 3/0278 Control or determination of height or angle information for sensors or receivers
• CPC Class Codes: G01J 3/0291 Housings; Spectrometer accessories; Spatial arrangement of elements, e.g. folded path arrangements
• CPC Class Codes: G01J 3/50 using electric radiation detectors
• CPC Class Codes: G01J 3/508 measuring the colour of teeth
• CPC Class Codes: G01J 3/51 using colour filters
• CPC Class Codes: G01J 3/513 having fixed filter-detector pairs
• CPC Class Codes: G01J 3/52 using colour charts

Abstract

Method for generating optical characteristics data of a dental object including at least color characteristics, are disclosed. Light is provided to the object and light is received from the object, and the received light is coupled to a camera, with the object positioned in the field of view of the camera. The optical characteristics data are generated based on camera data corresponding to the object and based on camera data corresponding to a calibration standard generated with the calibration standard in the field of view of the camera. The optical characteristics data may be stored in a record of a software database or used to prepare a second dental object.

Claims

1. A method of determining the optical characteristics of a dental object, comprising the steps of:

generating an image of the dental object with a camera, wherein the camera has a field of view, wherein the dental object is positioned in the field of view of the camera;

software processing the image of the dental object with a processing system to determine a plurality of regions of the dental object that have different optical characteristics;

generating optical characteristics data indicative of the optical characteristics of the dental object in one or more of the plurality of regions, wherein the optical characteristics data are generated based on camera data corresponding to the dental object in the one or more plurality of regions and camera data corresponding to a calibration standard, wherein the calibration standard and the dental object are simultaneously in the field of view of the camera, wherein the calibration standard includes a positional location attribute, wherein based on the positional location attribute the position of the calibration standard in the field of view of the camera is determined by the processing system without operator identification of the position of the calibration standard in the field of view of the camera.

2. The method of claim 1, wherein the dental object corresponds to a patient, wherein the calibration standard is located near the dental object.

3. The method of claim 2, wherein the calibration standard is positioned in the mouth of the patient.

4. The method of claim 1, wherein data from the camera corresponding to the dental object are adjusted based on data from the camera corresponding to the calibration standard.

5. The method of claim 4, wherein the data from the camera corresponding to the dental object are color adjusted.

6. The method of claim 1, wherein the optical characteristics data are stored in a database, wherein the optical characteristics data are generated a plurality of times for a plurality of dental objects to generate a plurality of optical characteristics database records.

7. The method of claim 6, wherein the database records are associated with particular patients.

8. The method of claim 6, wherein the database records store pictures of to dental objects.

9. The method of claim 8, wherein the pictures of the dental objects comprise images of the dental objects captured with the camera.

10. The method of claim 6, wherein the optical characteristics data are generated a plurality of times for the dental object, wherein a database stores a historical record of the optical characteristics of the dental object.

11. The method of claim 1, wherein a second dental object is produced based on the optical characteristics data.

12. The method of claim 11, wherein optical characteristics of the second dental object are determined prior to installation of the second dental object in a patient'"'"'s mouth.

13. The method of claim 12, wherein the optical characteristics of the second dental object are determined with the camera or a second camera.

14. The method of claim 12, wherein the optical characteristics of the second dental object are determined at a location where the second dental object is produced.

15. The method of claim 14, wherein the optical characteristics of the second dental object are determined with a second camera.

16. The method of claim 12, wherein the optical characteristics of the second dental object are determined at a location wherein the second dental object is to be installed in the patient'"'"'s mouth.

17. The method of claim 16, wherein the optical characteristics of the second dental object are determined with the camera.

18. The method of claim 11, wherein the second dental object comprises a denture.

19. The method of claim 11, wherein the second dental object comprises a dental prosthesis.

20. The method of claim 11, wherein the second dental object comprises a filling.

21. The method of claim 11, wherein the second dental object comprises a tooth-colored filling.

22. The method of claim 11, wherein the second dental object comprises a composite filling.

23. The method of claim 11, wherein the second dental object is produced based on a porcelain recipe determined in accordance with the optical characteristics data.

24. The method of claim 1, wherein the optical characteristics data are electronically transmitted to a remote location, wherein a second object is produced at the remote location based on the transmitted optical characteristics data.

25. The method of claim 24, wherein the electronic transmission comprises a modem transmission.

26. The method of claim 24, wherein the electronic transmission includes a transmission of a picture of the dental object.

27. The method of claim 26, wherein the picture of the dental object comprises an image of the dental object captured with the camera.

28. The method of claim 1, wherein the optical characteristics data are stored in a database, wherein the database includes date and time information associated with the optical characteristics data.

29. The method of claim 1, wherein the optical characteristics data are stored in a database, wherein optical characteristics data indicative of the optical characteristics are generated a plurality of times, including at least once for a plurality of the regions.

30. The method of claim 29, wherein the database stores sectoring information with the optical characteristics data.

31. The method of claim 30, wherein the database stores information corresponding to a pictorial representation of the dental object that includes sector grid lines.

32. The method of claim 30, wherein the sectoring information corresponds to regions of the dental object that have different optical characteristics.

33. The method of claim 1, wherein a material mixing unit receives the optical characteristics data, wherein the material mixing unit prepares constituent materials for a second dental object based on the optical characteristics data.

34. The method of claim 1, wherein the camera comprises an intraoral camera.

35. The method of claim 1, wherein the camera comprises a video camera.

36. The method of claim 1, wherein the optical characteristics data is output in the form of a closest match or matches to one or a plurality of sets of stored shade guide values.

37. The method of claim 1, wherein data corresponding to a plurality of shade guide systems is stored, each of the plurality of shade guide systems having a plurality of shade guide values, wherein the optical characteristics data is output in the form of a closest match or matches to one or more of the shade guide values in the plurality of shade guide systems.

38. The method of claim 37, wherein the optical characteristics data is output in the form of the closest match to one of the shade guide values in the plurality of shade guide systems.

39. The method of claim 1, wherein the optical characteristics data is used to electronically output a proposed recipe of materials for preparing a second dental object.

40. The method of claim 39, wherein the optical characteristics data is used to electronically output a proposed recipe of materials and instruction information for preparing a second dental object.

41. The method of claim 1, wherein the optical characteristics data is output in the form of one or more sets of color tri-stimulus values.

42. The method of claim 1, wherein an image of the dental object is displayed, wherein data indicative of the color of the dental object in one or more particular regions of the plurality of regions is displayed in an overlaid manner over the one or more particular regions.

43. The method of claim 1, wherein the camera comprises an image generation system that produces images of the dental object.

44. The method of claim 1, wherein the calibration standard comprises a reference having one or more regions of predetermined color.

45. The method of claim 1, wherein the dental object and the calibration standard are positioned so as to be subject to a substantially corresponding lighting condition, wherein the optical characteristics data are generated based on camera data corresponding to the dental object in the one or more plurality of regions and corresponding to the lighting condition and camera data corresponding to the calibration standard and corresponding to the lighting condition, wherein the calibration standard and the dental object are simultaneously in the field of view of the camera and subject to the corresponding lighting condition.

46. The method of claim 45, wherein an image of the dental object is displayed, wherein data indicative of the color of the dental object in one or more particular region of the plurality of regions is displayed in overlaid manner over the one or more particular regions.

47. The method of claim 46, wherein the optical characteristics data are stored, wherein optical characteristics data indicative of the optical characteristics are generated a plurality of times, including at least once for a plurality of the regions, wherein sectoring information is stored, wherein the sectoring information corresponds to regions of the dental object that have different optical characteristics.

48. The method of claim 47, wherein the optical characteristics data are output in the form of a closest match or matches to one or a plurality of sets of stored shade guide values.

49. The method of claim 47, wherein data corresponding to a plurality of shade guide systems are stored, each of the plurality of shade guide systems having a plurality of shade guide values, wherein the optical characteristics data are output in the form of a closest match or matches to one or more of the shade guide values in the plurality of shade guide systems.

50. The method of claim 49, wherein the optical characteristics data are output in the form of the closest match to one of the shade guide values in the plurality of shade guide systems.

51. The method of claim 49, wherein the optical characteristics data are electronically transmitted to a remote location, wherein a second object is produced at the remote location based on the transmitted optical characteristics data.

52. The method of claim 51, wherein the electronic transmission comprises a modem transmission.

53. The method of claim 51, wherein the electronic transmission includes a transmission of a picture of the dental object.

54. The method of claim 53, wherein the picture of the dental object comprises an image of the dental object captured with the camera.

55. The method of claim 47, wherein the optical characteristics data are electronically transmitted to a remote location, wherein a second object is produced at the remote location based on the transmitted optical characteristics data.

56. The method of claim 55, wherein the electronic transmission comprises a modem transmission.

57. The method of claim 55, wherein the electronic transmission includes a transmission of a picture of the dental object.

58. The method of claim 57, wherein the picture of the dental object comprises an image of the dental object captured with the camera.

59. The method of claims 46, wherein the optical characteristics data are output in the form of a closest match or matches to one or a plurality of sets of stored shade guide values.

60. The method of claim 46, wherein data corresponding to a plurality of shade guide systems are stored, each of the plurality of shade guide systems having a plurality of shade guide values, wherein the optical characteristics data are output in the form of a closest match or matches to one or more of the shade guide values in the plurality of shade guide systems.

61. The method of claim 60, wherein the optical characteristics data are output in the form of the closest match to one of the shade guide values in the plurality of shade guide systems.

62. The method of claim 46, wherein the optical characteristics data are electronically transmitted to a remote location, wherein a second object is produced at the remote location based on the transmitted optical characteristics data.

63. The method of claim 62, wherein the electronic transmission comprises a modem transmission.

64. The method of claim 62, wherein the electronic transmission includes a transmission of a picture of the dental object.

65. The method of claim 64, wherein the picture of the dental object comprises an image of the dental object captured with the camera.

66. The method of claim 1, wherein the camera comprises an image generation system that produces images of the dental object, wherein the calibration standard comprises a reference having one or more regions of predetermined color, wherein the dental object and the reference having one or more regions of predetermined color are positioned so as to be subject to a substantially corresponding lighting condition, wherein the optical characteristics data are generated based on image generation system data corresponding to the dental object in the one or more plurality of regions and corresponding to the lighting condition and image generation system data corresponding to the reference having one or more regions of predetermined color and corresponding to the lighting condition, wherein the reference having one or more regions of predetermined color and the dental object are simultaneously in the field of view of the image generation system.

67. A method of determining the optical characteristics of a dental object, comprising the steps of:

generating an image of the dental object with a camera, wherein the camera has a field of view, wherein the dental object is positioned in the field of view of the camera;

software processing the image of the dental object with a processing system to determine a plurality of regions of the dental object that have different optical characteristics;

generating optical characteristics data indicative of the optical characteristics of the dental object in one or more of the plurality of regions, wherein the optical characteristics data are generated based on camera data corresponding to the dental object in the one or more plurality of regions and camera data corresponding to a calibration standard, wherein the calibration standard includes one or more visible features that include a positional location attribute, wherein based on the positional location attribute the position of the calibration standard in the field of view of the camera is determined by the processing system without operator identification of the position of the calibration standard in the field of view of the camera, wherein the camera data corresponding to the calibration standard include camera data from one or more regions of the calibration standard that are a predetermined position with respect to the one or more visible features and that have a predetermined color, wherein camera data from the calibration standard provide a color reference.

68. The method of claim 67, wherein the dental object corresponds to a patient, wherein the calibration standard is located near the dental object.

69. The method of claim 68, wherein the calibration standard is positioned in the mouth of the patient.

70. The method of claim 67, wherein data from the camera corresponding to the dental object are adjusted based on data from the camera corresponding to the calibration standard.

71. The method of claim 70, wherein the data from the camera corresponding to the dental object are color adjusted.

72. The method of claim 67, wherein the optical characteristics data are stored in a database, wherein the optical characteristics data are generated a plurality of times for a plurality of dental objects to generate a plurality of optical characteristics database records.

73. The method of claim 72, wherein the database records are associated with particular patients.

74. The method of claim 72, wherein the database records store pictures of the dental objects.

75. The method of claim 74, wherein the pictures of the dental objects comprise images of the dental objects captured with the camera.

76. The method of claim 72, wherein the optical characteristics data are generated a plurality of times forte dental object, wherein a database stores a historical record of the optical characteristics of the dental object.

77. The method of claim 67, wherein a second dental object is produced based on the optical characteristics data.

78. The method of claim 77, wherein optical characteristics of the second dental object are determined prior to installation of the second dental object in a patient'"'"'s mouth.

79. The method of claim 78, wherein the optical characteristics of the second dental object are determined with the camera or a second camera.

80. The method of claim 78, wherein the optical characteristics of the second dental object are determined at a location where the second dental object is produced.

81. The method of claim 80, wherein the optical characteristics of the second dental object are determined with a second camera.

82. The method of claim 78, wherein the optical characteristics of the second dental object are determined at a location wherein the second dental object is to be installed in the patient'"'"'s mouth.

83. The method of claim 82, wherein the optical characteristics of the second dental object are determined with the camera.

84. The method of claim 77, wherein the second dental object comprises a denture.

85. The method of claim 77, wherein the second dental object comprises a dental prosthesis.

86. The method of claim 77, wherein the second dental object comprises a filling.

87. The method of claim 77, wherein the second dental object comprises a tooth-colored filling.

88. The method of claim 77, wherein the second dental object comprises a composite filling.

89. The method of claim 77, wherein the second dental object is produced based on a porcelain recipe determined in accordance with the optical characteristics data.

90. The method of claim 67, wherein the optical characteristics data are electronically transmitted to a remote location, wherein a second object is produced at the remote location based on the transmitted optical characteristics data.

91. The method of claim 90, wherein the electronic transmission comprises a modem transmission.

92. The method of claim 90, wherein the electronic transmission includes a transmission of a picture of the dental object.

93. The method of claim 92, wherein the picture of the dental object comprises an image of the dental object captured with the camera.

94. The method of claim 67, wherein the optical characteristics data are stored in a database, wherein the database includes date and time information associated with the optical characteristics data.

95. The method of claim 67, wherein the optical characteristics data are stored in a database, wherein optical characteristics data indicative of the optical characteristics are generated a plurality of times, including at least once for a plurality of the regions.

96. The method of claim 95, wherein the database stores sectoring information with the optical characteristics data.

97. The method of claim 96, wherein the database stores information corresponding to a pictorial representation of the dental object that includes sector grid lines.

98. The method of claim 67, wherein a material mixing unit receives the optical characteristics data, wherein the material mixing unit prepares constituent materials for a second dental object based on the optical characteristics data.

99. The method of claim 67, wherein the camera comprises an intraoral camera.

100. The method of claim 67, wherein the camera comprises a video camera.

101. The method of claim 67, wherein the optical characteristics data is output in the form of a closest match or matches to one or a plurality of sets of stored shade guide values.

102. The method of claim 67, wherein data corresponding to a plurality of shade guide systems is stored, each of the plurality of shade guide systems having a plurality of shade guide values, wherein the optical characteristics data is output in the form of a closest match or matches to one or more of the shade guide values in the plurality of shade guide systems.

103. The method of claim 102, wherein the optical characteristics data is output in the form of the closest match to one of the shade guide values in the plurality of shade guide systems.

104. The method of claim 67, wherein the optical characteristics data is used to electronically output a proposed recipe of materials for preparing a second dental object.

105. The method of claim 104, wherein the optical characteristics data is used to electronically output a proposed recipe of materials and instruction information for preparing a second dental object.

106. The method of claim 67, wherein the optical characteristics data is output in the form of one or more sets of color tri-stimulus values.

107. The method of claim 67, wherein an image of the dental object is displayed, wherein data indicative of the color of the dental object in one or more particular regions of the plurality of regions is displayed in an overlaid manner over the one or more particular regions.

108. The method of claim 107, wherein the optical characteristics data are stored, wherein optical characteristics data indicative of the optical characteristics are generated a plurality of times, including at least once for a plurality of the regions, wherein sectoring information is stored, wherein the sectoring information corresponds to regions of the dental object that have different optical characteristics.

109. The method of claim 107, wherein the optical characteristics data are output in the form of a closest match or matches to one or a plurality of sets of stored shade guide values.

110. The method of claim 107, wherein data corresponding to a plurality of shade guide systems is stored, each of the plurality of shade guide systems having a plurality of shade guide values, wherein the optical characteristics data are output in the form of a closest match or matches to one or more of the shade guide values in the plurality of shade guide systems.

111. The method of claim 110, wherein the optical characteristics data are output in the form of the closest match to one of the shade guide values in the plurality of shade guide systems.

112. The method of claim 107, wherein the optical characteristics data are electronically transmitted to a remote location, wherein a second object is produced at the remote location based on the transmitted optical characteristics data.

113. The method of claim 112, wherein the electronic transmission comprises a modem transmission.

114. The method of claim 112, wherein the electronic transmission includes a transmission of a picture of the dental object.

115. The method of claim 114, wherein the picture of the dental object comprises an image of the dental object captured with the camera.

116. The method of claim 67, wherein the camera comprises an image generation system that produces images of the dental object.

117. The method of claim 67, wherein the calibration standard comprises a reference having one or more regions of predetermined color.

118. A method of determining the optical characteristics of a dental object, comprising the steps of:

generating an image of the dental object with a image generation device, wherein the image generation device has a field of view, wherein the dental object is positioned in the field of view of the image generation device;

generating optical characteristics data indicative of the optical characteristics of the dental object, wherein the optical characteristics data are generated based on image generation device data corresponding to the dental object and image generation device data corresponding to a reference having one or more regions of predetermined color, wherein the reference having one or more regions of predetermined color and the dental object are simultaneously in the field of view of the image generation device, wherein the reference includes a positional location attribute, wherein based on the positional location attribute the position of the reference in the field of view of the image generation device is determined by a processing system without operator identification of the position of the reference in the field of view of the image generation device.

119. The method of claim 118, wherein the dental object corresponds to a patient, wherein the reference having one or more regions of predetermined color is located near the dental object.

120. The method of claim 119, wherein the reference having one or more regions of predetermined color is positioned in the mouth of the patient.

121. The method of claim 118, wherein data from the image generation device corresponding to the dental object are adjusted based on data from the image generation device corresponding to the reference having one or more regions of predetermined color.

122. The method of claim 121, wherein the data from the image generation device corresponding to the dental object are color adjusted.

123. The method of claim 118, wherein the optical characteristics data are stored in a database, wherein the optical characteristics data are generated a plurality of times for a plurality of dental objects to generate a plurality of optical characteristics database records.

124. The method of claim 123, wherein the database records are associated with particular patients.

125. The method of claim 123, wherein the database records store pictures of the dental objects.

126. The method of claim 125, wherein the pictures of the dental objects comprise images of the dental objects captured with the image generation device.

127. The method of claim 123, wherein the optical characteristics data are generated a plurality of times for the dental object, wherein a database stores a historical record of the optical characteristics of the dental object.

128. The method of claim 118, wherein a second dental object is produced based on the optical characteristics data.

129. The method of claim 128, wherein optical characteristics of the second dental object are determined prior to installation of the second dental object in a patient'"'"'s mouth.

130. The method of claim 129, wherein the optical characteristics of the second dental object are determined with the image generation device or a second image generation device.

131. The method of claim 130, wherein the optical characteristics of the second dental object are determined at a location where the second dental object is produced.

132. The method of claim 131, wherein the optical characteristics of the second dental object are determined with a second image generation device.

133. The method of claim 129, wherein the optical characteristics of the second dental object are determined at a location wherein the second dental object is to be installed in the patient'"'"'s mouth.

134. The method of claim 133, wherein the optical characteristics of the second dental object are determined with the image generation device.

135. The method of claim 128, wherein the second dental object comprises a denture.

136. The method of claim 128, wherein the second dental object comprises a dental prosthesis.

137. The method of claim 128, wherein the second dental object comprises a filling.

138. The method of claim 128, wherein the second dental object comprises a tooth-colored filling.

139. The method of claim 128, wherein the second dental object comprises a composite filling.

140. The method of claim 128, wherein the second dental object is produced based on a porcelain recipe determined in accordance with the optical characteristics data.

141. The method of claim 118, wherein the optical characteristics data are electronically transmitted to a remote location, wherein a second object is produced at the remote location based on the transmitted optical characteristics data.

142. The method of claim 141, wherein the electronic transmission comprises a modem transmission.

143. The method of claim 141, wherein the electronic transmission includes a transmission of a picture of the dental object.

144. The method of claim 143, wherein the picture of the dental object comprises an image of the dental object captured with the image generation device.

145. The method of claim 118, wherein the optical characteristics data are stored in a database, wherein the database includes date and time information associated with the optical characteristics data.

146. The method of claim 118, wherein the optical characteristics data are stored in a database, wherein optical characteristics data indicative of the optical characteristics are generated a plurality of times for a plurality of regions of the dental object.

147. The method of claim 146, wherein the database stores sectoring information with the optical characteristics data.

148. The method of claim 147, wherein the database stores information corresponding to a pictorial representation of the dental object that includes sector grid lines.

149. The method of claim 118, wherein a material mixing unit receives the optical characteristics data, wherein the material mixing unit prepares constituent materials for a second dental object based on the optical characteristics data.

150. The method of claim 118, wherein the image generation device comprises an intraoral image generation device.

151. The method of claim 118, wherein the image generation device comprises a video image generation device.

152. The method of claim 118, wherein the optical characteristics data is output in the form of a closest match or matches to one or a plurality of sets of stored shade guide values.

153. The method of claim 152, wherein the optical characteristics data are stored, wherein optical characteristics data indicative of the optical characteristics are generated a plurality of times, including at least once for a plurality of the regions, wherein sectoring information is stored, wherein the sectoring information corresponds to regions of the dental object that have different optical characteristics.

154. The method of claim 153, wherein the optical characteristics data are electronically transmitted to a remote location, wherein a second object is produced at the remote location based on the transmitted optical characteristics data.

155. The method of claim 154, wherein the electronic transmission comprises a modem transmission.

156. The method of claim 154, wherein the electronic transmission includes a transmission of a picture of the dental object.

157. The method of claim 156, wherein the picture of the dental object comprises an image of the dental object captured with the image generation device.

158. The method of claim 152, wherein an image of the dental object is displayed, wherein data indicative of the color of the dental object in one or more particular regions of the plurality of regions is displayed in an overlaid manner over the one or more particular regions.

165. The method of claim 118, wherein data corresponding to a plurality of shade guide systems is stored, each of the plurality of shade guide systems having a plurality of shade guide values, wherein the optical characteristics data is output in the form of a closest match or matches to one or more of the shade guide values in the plurality of shade guide systems.

166. The method of claim 165, wherein the optical characteristics data is output in the form of the closest match to one of the shade guide values in the plurality of shade guide systems.

167. The method of claim 118, wherein the optical characteristics data is used to electronically output a proposed recipe of materials for preparing a second dental object.

168. The method of claim 167, wherein the optical characteristics data is used to electronically output a proposed recipe of materials and instruction information for preparing a second dental object.

169. The method of claim 118, wherein the optical characteristics data is output in the form of one or more sets of color tri-stimulus values.

170. The method of claim 118, wherein an image of the dental object is displayed, wherein data indicative of the color of the dental object in one or more particular regions of the plurality of regions is displayed in an overlaid manner over the one or more particular regions.

171. The method of claim 170, wherein the dental object and the reference having one or more regions of predetermined color are positioned so as to be subject to a substantially corresponding lighting condition, wherein the optical characteristics data are generated based on image generation device data corresponding to the dental object and corresponding to the lighting condition and image generation device data corresponding to the reference having one or more regions of predetermined colors and corresponding to the lighting condition, wherein the reference having one or more regions of predetermined color and the dental object are simultaneously in the field of view of the image generation device and subject to the corresponding light condition.

172. The method of claim 171, wherein the optical characteristics data are stored, wherein optical characteristics data indicative of the optical characteristics are generated a plurality of times, including at least once for a plurality of the regions, wherein sectoring information is stored, wherein the sectoring information corresponds to regions of the dental object that have different optical characteristics.

173. The method of claim 172, wherein the optical characteristics data are electronically transmitted to a remote location, wherein a second object is produced at the remote location based on the transmitted optical characteristics data.

174. The method of claim 173, wherein the electronic transmission comprises a modem transmission.

175. The method of claim 173, wherein the electronic transmission includes a transmission of a picture of the dental object.

176. The method of claim 175, wherein the picture of the dental object comprises an image of the dental object captured with the image generation device.

177. The method of claim 118, wherein the dental object and the reference having one or more regions of predetermined color are positioned so as to be subject to a substantially corresponding lighting condition, wherein the optical characteristics data are generated based on image generation device data corresponding to the dental object and corresponding to the lighting condition and image generation device data corresponding to the reference having one or more regions of predetermined colors and corresponding to the lighting condition, wherein the reference having one or more regions of predetermined color and the dental object are simultaneously in the field of view of the image generation device and subject to the corresponding light condition.

178. The method of claim 177, wherein the optical characteristics data are stored, wherein optical characteristics data indicative of the optical characteristics are generated a plurality of times, including at least once for a plurality of the regions, wherein sectoring information is stored, wherein the sectoring information corresponds to regions of the dental object that have different optical characteristics.

179. The method of claim 177, wherein an image of the dental object is displayed, wherein data indicative of the color of the dental object in one or more particular regions of the plurality of regions is displayed in an overlaid manner over the one or more particular regions.

180. The method of claim 179, wherein the optical characteristics data are output in the form of a closest match or matches to one or a plurality of sets of stored shade guide values.

181. The method of claim 179, wherein a computing system stores data corresponding to a plurality of shade guide systems, each of the plurality of shade guide systems having a plurality of shade guide values, wherein the optical characteristics data are output in the form of a closest match or matches to one or more of the shade guide values in the plurality of shade guide systems.

182. The method of claim 181, wherein the optical characteristics data are output in the form of the closest match to one of the shade guide values in the plurality of shade guide systems.

183. The method of claim 118, wherein the optical characteristics data are stored, wherein optical characteristics data indicative of the optical characteristics are generated a plurality of times, including at least once for a plurality of the regions, wherein sectoring information is stored, wherein the sectoring information corresponds to regions of the dental object that have different optical characteristics.

159. The method of clam 152, wherein the dental object and the reference having one or more regions of predetermined color are positioned so as to be subject to a substantially corresponding lighting condition, wherein the optical characteristics data are generated based on image generation device data corresponding to the dental object and corresponding to the lighting condition and image generation device data corresponding to the reference having one or more regions of predetermined colors and corresponding to the lighting condition, wherein the reference having one or more regions of predetermined color and the dental object are simultaneously in the field of view of the image generation device and subject to the corresponding light condition.

160. The method of claim 159, wherein the optical characteristics data are stored, wherein optical characteristics data indicative of the optical characteristics are generated a plurality of times, including at least once for a plurality of the regions, wherein sectoring information is stored, wherein the sectoring information corresponds to regions of the dental object that have different optical characteristics.

161. The method of claim 160, wherein the optical characteristics data are electronically transmitted to a remote location, wherein a second object is produced at the remote location based on the transmitted optical characteristics data.

162. The method of claim 161, wherein the electronic transmission comprises a modem transmission.

163. The method of claim 161, wherein the electronic transmission includes a transmission of a picture of the dental object.

164. The method of claim 163, wherein the picture of the dental object comprises an image of the dental object captured with the image generation device.