Application of Contouring to Dental Reconstruction
The aim of this work is to design an optical device for contouring of dental elements. Non-contact optical measurements can allow a higher accuracy in reconstruction to be achieved as well as they increase significantly the comfort of the patient. In view of this, a measurement device, based on the projection of the pattern of lines result of the interference between the wave-fronts emerging from two optical fibers, is realized. A hierarchical unwrapping framework operating on fringe modulation and fringe contrast is implemented in order to deal with pattern discontinuities unavoidably introduced by the sharpness of dental surfaces.
Results obtained on calibrated specimens and 3D models of dental elements confirm the validity of the proposed approach.
- 1.Ferracane JL (2001) Materials in dentistry: principles and applications, 2nd Edn. Lippincott and Wilkins, PhiladelphiaGoogle Scholar
- 2.Duret F (1988) CAD/CAM in dentistry. J Am Dent Assoc 117:715–720Google Scholar
- 3.Casavola C, Lamberti L, Kujawinska M, Pappalettera G, Pappalettere C (2008) 3D reconstruction of dental elements with optical techniques. In: Photomechanics. Loughborough, UKGoogle Scholar
- 6.Moore AJ, McBride R, Barton JS, Jones JDC (2000) Shape measurement using a fiber optic fringe projector with active homodyne phase stepping. In: Proceedings of the SPIE, GlasgowGoogle Scholar
- 7.Sciammarella CA, Lamberti L, Boccaccio A, Sciammarella FM (2011) High precision contouring with moirÕ and related methods: a review. Strain 47:43-64Google Scholar
- 8.Sitnik R (2002) A fully automatic 3D shape measurement system with data export for engineering and multimedia systems, Warsaw, p 259Google Scholar
- 9.Ripley BD (1996) Pattern recognition and neural network. Cambridge University Press, Cambridge, p 260Google Scholar