Evaluation of the Planning of Removable Partial Denture in Plaster Models Received from Prosthodontic Laboratories of the City of João Pessoa, PB, Brazil

André Ulisses Dantas Batista, João Paulo Lima Araújo Sales, Arcelino Farias Neto, Adriana da Fonte Porto Carreiro

Abstract


Objective: To evaluate the planning and quality of plaster models for fabrication of removable partial dentures received from three commercial prosthodontic laboratories located in the city of João Pessoa, PB, Brazil, which perform the casting procedures in their facilities.
Methods: Forty 40 plaster models were photographed per laboratory, totalizing 120 models. The evaluation was performed using two questionnaires, one designed for the dental prosthesis technicians, and another applied by the investigator for the visual evaluation of the models. Data were analyzed using the SPSS software version 13.0.
Results: Ninety-two (76.7%) models did not present planning. In addition, no model presented references of insertion plane or guide pins. Calculation of the mouth preparation index (MPI) to evaluate the distribution of the oclusal and cingulum abutments or rests showed that 86 (71.7%) models were classified as poor, 23 (19.2%) models as good and only 11 (9,.2%) models as acceptable. Defects were found in 102 (85%) models.
Conclusion: The prosthodontists are not preparing the mouth of their patients, neglecting the planning of removable partial dentures, and passing this responsibility to the dental prosthesis technicians. In addition, the quality of the models sent to the laboratories was unsatisfactory.

Keywords


Prótese parcial removível; Planejamento de prótese dentária; Modelos dentários; Removable partial denture; Dental prosthesis design; Dental models.



DOI: http://dx.doi.org/10.4034/pboci.v11i1.1255

PBOCI IS A MEMBER OF CROSSREF AND ALL THE CONTENT OF ITS JOURNALS ARE LINKED BY DOIS THROUGH CROSSREF.