The facial morphologies of identical twins were compared using the 3dMD three-dimensional (3D) photogrammetry system. 3D images of the faces of 27-year-old identical twins were acquired and then superimposed. The differences were shown in a color histogram generated using 3dMD Vultus software. The faces of the twins differed in the areas of the zygomatic region, lips, and cheeks. There were no prominent differences in other parts of their faces. Differences in the facial morphology of twins can be detected by superimposing 3D photogrammetry generated images and displaying the data as a color histogram.
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1. Othman SA, Ahmad R, Asi SM, Ismail NH, Rahman ZAA. Three-dimensional quantitative evaluation of facial morphology in adults with unilateral cleft lip and palate, and patients without clefts. Br J Oral Maxillofac Surg. 2014;52(3):208-13.
2. Moyers RE, Bookstein FL. The inappropriateness of conventional cephalometrics. Am J Orthod. 1979;75(6):599-617.
3. Tzou C-HJ, Artner NM, Pona I, Hold A, Placheta E, Kropatsch WG, Frey M. Comparison of three-dimensional surface-imaging systems. J Plast Reconstr Aesthet Surg. 2014;67(4):489-97.
4. Lane C, Harrell Jr W. Completing the 3-dimensional picture. Am J Orthod Dentofac Orthop. 2008;133(4):612-20.
5. Wirthlin J, Kau C, English J, Pan F, Zhou H. Comparison of facial morphologies between adult Chinese and Houstonian Caucasian populations using threedimensional imaging. Int J Oral Maxillofac Surg. 2013;42(9):1100-7.
6. Kau CH, Richmond S. Three-dimensional analysis of facial morphology surface changes in untreated children from 12 to 14 years of age. Am J Orthod Dentofac Orthop. 2008;134(6):751-60.
7. Jayaratne YS, Deutsch CK, Zwahlen RA. Nasal Morphology of the Chinese ThreeDimensional Reference Values for Rhinoplasty. Otolaryngol Head Neck Surg. 2014;150(6):956-61.
8. Hajeer M, Millett D, Ayoub A, Siebert J. Current Products and Practices: Applications of 3D imaging in orthodontics: Part I. J Orthod. 2004;31(1):62-70.
9. Mah JK, Danforth RA, Bumann A, Hatcher D. Radiation absorbed in maxillofacial imaging with a new dental computed tomography device. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2003;96(4):508-13.
10. Pinsky HM, Dyda S, Pinsky RW, Misch KA, Sarment DP. Accuracy of threedimensional measurements using cone-beam CT. Dentomaxillofac Radiol. 2006;35(6):410-6.
11. Lagravère MO, Carey J, Toogood RW, Major PW. Three-dimensional accuracy of measurements made with software on cone-beam computed tomography images. Am J Orthod Dentofac Orthop. 2008;134(1):112-6.
12. Kau CH, Richmond S, Incrapera A, English J, Xia JJ. Three-dimensional surface acquisition systems for the study of facial morphology and their application to maxillofacial surgery. Int J Med Robot. 2007;3(2):97-110.
13. Kau CH, Richmond S, Zhurov AI, Knox J, Chestnutt I, Hartles F, Playle R. Reliability of measuring facial morphology with a 3-dimensional laser scanning system. Am J Orthod Dentofac Orthop. 2005;128(4):424-30.
14. Tzou C-HJ, Frey M. Evolution of 3D surface imaging systems in facial plastic surgery. Facial Plast Surg Clin North Am. 2011;19(4):591-602.
15. Wong JY, Oh AK, Ohta E, Hunt AT, Rogers GF, Mulliken JB, Deutsch CK. Validity and reliability of craniofacial anthropometric measurement of 3D digital photogrammetric images. Cleft Palate Craniofac J. 2008;45(3):232-9.
16. Aldridge K, Boyadjiev SA, Capone GT, DeLeon VB, Richtsmeier JT. Precision and error of three-dimensional phenotypic measures acquired from 3dMD photogrammetric images. Am. J. Med. Genet. Part A. 2005;138A(3):247-53.
17. Lübbers H-T, Medinger L, Kruse A, Grätz KW, Matthews F. Precision and accuracy of the 3dMD photogrammetric system in craniomaxillofacial application. J Craniofac Surg. 2010;21(3):763-7.
18. Plooij J, Swennen G, Rangel F, Maal T, Schutyser F, Bronkhorst E, KuijpersJagtman AM, Bergé SJ. Evaluation of reproducibility and reliability of 3D soft tissue analysis using 3D stereophotogrammetry. Int J Oral Maxillofac Surg. 2009;38(3):267-73.