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Three-dimensional visualization of a mandibular first molar with three distal roots using computer-aided rapid prototyping

2005; Elsevier BV; Volume: 101; Issue: 5 Linguagem: Inglês

10.1016/j.tripleo.2005.06.013

1528-395X

Seung-Jong Lee, Kyung-Ha Jang, Larz S.W. Spångberg, Euiseong Kim, Il‐Young Jung, Chang-Young Lee, Kee‐Yeon Kum,

Dental Trauma and Treatments

Nonsurgical endodontic therapy of a right mandibular first molar with 3 distal roots was successfully performed with the aid of magnification. 3D data (DICOM format) of the tooth were obtained from a CT HighSpeed Advantage and a Denta Scan program produced by GE Medical Systems. The CT protocol used for this procedure involved a slit thickness of 1 mm. The 3D digital data obtained were fed into a visualization program (V-works; Cybermed Co) and then exported to the rapid prototyping machine for fabrication of the actual-sized tooth model. The material for the model-making process was starch. The 3D digital visualization and the computer-aided rapid prototyping (CARP) model clearly showed 3 separate distal roots (distobuccal, distolingual, and middle distal). The CARP technique seems to be a useful imaging technology to document unusual root anatomy in clinical dentistry.