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ePaper created 2016-09-20, 16:58:27 | version 1.38.0
Journal of Oral Science & Rehabilitation 24 Volume 2 | Issue 3/2016 H a r d - a n d s o f t - t i s s u e c h a n g e s w i t h a s u p e r i m p o s i t i o n t e c h n i q u e Superimposition of digitized data using a voxel- based registration method has already been ex- plored inthe literature.21–25 The main advantage is the generation of digital archive of patients for several purposes, including esthetic analysis. Conclusion Thetechniquepresentedoffersanobjectiveeval- uation ofthe hard- and soft-tissue changes over time. This technique could complement previ- ously established methods. Competing interests The authorsdeclarethattheyhave nocompeting interests related to this study. Figs. 7a–d Hard- and soft-tissue measurements of the differences between the two digitized model casts, calculated on 2-D sections (a) taken along the long axes of the restored teeth (b & c) and along the papillae (d). Figs. 7a–d a b c d