The influence of double flask processing in occlusal plane when a couple of dentures are processed in occlusal position

Authors

  • Célia Marisa Rizzatti-Barbosa Department of Prosthesis and Periodontology of State University of Campinas
  • Vicente de Paula Prisco da Cunha Department of Dentistry of University of Vale do Paraíba
  • Leonardo Marchini Department of Dentistry of University of Vale do Paraíba
  • Margarete Cristiane Ribeiro Department of Prosthesis and Periodontology of State University of Campinas

DOI:

https://doi.org/10.20396/bjos.v2i6.8641703

Keywords:

Denture. Processing. Occlusion

Abstract

Equilibrate occlusion system is an important goal in oral rehabilitation. This occlusal scheme is established when the denture teeth are placed in the plane of orientation, and could be changed by alterations related to polymerization resin process. The aim of this research was to evaluate vertical occlusal plane changes after processing, using two types of flasks: a conventional single flask (C), and a flask designed to process upper and lower denture simultaneously in occlusal position (HH). Twenty double dentures (upper and lower) were reproduced by a maxilla and mandible master metallic models simulating edentulous upper and lower couple arches. Four metallic apparatus simulating molar and canine cusps were placed on plane of orientation at molar and canine positions of all dentures. The Group I couple samples were processed individually using single conventional flask (C), and the ten couple samples of Group II were polymerized using a flask designed to process upper and lower denture simultaneously, in optimal positioning teeth (HH). A linear measurement instrument measured the distance between metallic top of each cusps and the cast bone before and after dentures processing. The data were analyzed by z test at 95% confidence level, and made possible to verify that the modification occurred in Group I were aleatory, with prevalence of negative results to upper and lower dentures. In Group II samples was observed that occurred regulars movements of metallic patterns in function of their antagonists, showing homogeneous alterations on patterns. Was observed statistical difference between group I and Group II samples, were Group II exhibited better results of occlusion teeth accuracy after processing than Group I samples

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Author Biographies

Célia Marisa Rizzatti-Barbosa, Department of Prosthesis and Periodontology of State University of Campinas

graduate at Odontologia from Universidade Estadual Paulista Júlio de Mesquita Filho (1980), master's at Odontology from Universidade Estadual de Campinas (1992) and ph.d. at Odontology from Universidade de São Paulo (1995). Has experience in Odontology, focusing on Clinical Odontology, acting on the following subjects: resina acrílica, processamento, prótese, resina acrilica and protese.

Vicente de Paula Prisco da Cunha, Department of Dentistry of University of Vale do Paraíba

Possui graduação em Odontologia pela Universidade Estadual Paulista Júlio de Mesquita Filho (1980), mestrado em Pós Graduação pela Universidade de Taubaté (1983) e doutorado em Prótese Dentária pela Universidade de Taubaté (2000). É Diretor de Unidade de Ensino (Departamento de Odontologia) da Universidade de Taubaté, conforme Portaria R-Nº 021/2012, desde 09 de janeiro de 2012, e Portaria R-Nº 016/2014 de 09 de janeiro de 2014.

Leonardo Marchini, Department of Dentistry of University of Vale do Paraíba

Leonardo Marchinipossui graduação (1996) e mestrado (2000) em Odontologia pela UNESP-SJC e doutorado em Ciências pelo ICB-USP (2006). Tem experiência clínica e de pesquisa na área de Odontologia, com ênfase em odontogeriatria, implantes e prótese dentária; e atuou como professor assistente em Universidades brasileiras (UNITAU, UNIVAP, UNESP e UMC) de 1999 a julho de 2013. Desde agosto de 2013, atua como Assistant Professor no Department of Preventive and Community Dentistry do College of Dentistry da University of Iowa, EUA.

Margarete Cristiane Ribeiro, Department of Prosthesis and Periodontology of State University of Campinas

Possui graduação em Odontologia pela Universidade Estadual de Campinas(2000). Atuando principalmente nos seguintes temas:Mufla monomaxilar, Mufla bimaxilar, Resina de Microondas, Propriedades físicas da resina

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Published

2015-11-12

How to Cite

1.
Rizzatti-Barbosa CM, Cunha V de PP da, Marchini L, Ribeiro MC. The influence of double flask processing in occlusal plane when a couple of dentures are processed in occlusal position. Braz. J. Oral Sci. [Internet]. 2015 Nov. 12 [cited 2022 Sep. 26];2(6):264-7. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641703

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