Traditionally we plan treatment on 2-dimensional radiographs which are of limited information. 3D Models gives an opportunity to have the lesion externally and thus planning is possible. For example, in Implant planning, we rely on radiographs where there are problems of technique and 2 dimensionalities. With models, the planning is in three dimensions and is real. We are not forced to assume certain parameters when depending on 2 D radiographs. The Direction of the implant can be controlled so that the final implant is preserved longer. In Endodontics in multiple canals, one can practice the RC outside on the model before doing on the patient.—greater accuracy. Periodontics treatment planning is done better as a buccal, bone loss; architecture can be visualized and planned for bone augmentation.
Once the Doctor has the model, the architectural change brought about by the disease can easily be understood. The exact dimensions of the lesion can be precisely estimated helping surgical planning. Surgical guides can be prepared to make the surgical procedure accurate.
a) Oral Surgery: — Cleft evaluation—pre-surgical planning, graft volume and dimension measurement before harvesting. The area of bone to be harvested also possible.
Salivary Calculus. Sialography CBCT shows path. Model makes planning surgery easy
Bone loss around 26, 27, 28 appears periodontal abscess. The Model shows floating teeth appearance clearly. CBCT revisited
b) Pedodontics:– Space requirement for the normal eruption of permanent teeth in children, active and passive space maintainers.
c) Periodontology: Bone loss estimation and nature of defect can easily be calculated for grafting.
d) Orthodontics: In Orthodontics now you can have models which the patient can relate and appreciate the changes. Photographs cannot justify the efforts taken by the Orthodontist.
e) Endodontics: In endodontics, one can see the number of canals and their orientations, which as difficult and possible only to a limited extent by surgical microscopes.
f) Prosthodontics: to evaluate the amount of tooth surface preparation to maintain parallelism in the same tooth or abutments. Direction, angle, and extent of jaw movement in various planes for condylar guidance.