Full text
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| Author(s): |
Rogério Ribas da Costa
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Faculdade de Odontologia (FO/SDO) |
| Defense date: | 1998-07-02 |
| Examining board members: |
Artemio Luiz Zanetti;
Ricardo Tatsuo Inoue;
Dalva Cruz Lagana
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| Advisor: | Artemio Luiz Zanetti |
| Abstract | |
The articulator is one of the main instruments used in Dentistry for the diagnosis and treatment of the patient. The factors associated with the choice of such instrument are multiple and perhaps the most important one is related to the philosophy of the development and correction of the occlusion, basic and fundamental principle that determines the construction of a dental prosthesis. By means of a correct cast mounting procedure, the articulator represents the way in which the patient\'s maxillary cast is mounted in a similar way to the three-dimensional position of the patient\'s arches, in relation to the base of the cranium and to the terminal hinge axis of the condyles. Zanetti & Ribas (1997), studying a new method to simplify and increase the precision of maxillary cast mounting procedures in fully adjustable or semiadjustable articulators, by means of a transfer system in the simple arbitrary face-bow, they verified the existence of changes of the precision of the articulator when its upper frame with attached face-bow is replaced onto its lower frame allowing the fork toggle of the face-bow to rest on the plastic incisal guide block. The present study analyzes the reasons of such precision changes in several articulators available in the Brazilian market and it presents a new device to be used with the simple arbitrary face-bow in order to avoid the deleterious effects that such positional errors could cause, from the occlusal analysis to the construction of a dental prosthesis. (AU) | |