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Abstract(s)
A estética dentária é um tema complexo, dependente de múltiplos fatores e aumenta cada vez mais a importância dada quer pelos pacientes quer pelos profissionais na tentativa de satisfazer ou superar as expectativas. O presente estudo pretende avaliar a importância do bisel do ângulo cavo-superficial no preparo cavitário de cavidades de classe IV em restaurações estéticas com resinas compostas. Mais especificamente, objetiva-se: i) avaliar quantitativamente as propriedades óticas de restaurações em compósito em que o ângulo cavo-superficial foi biselado durante o preparo cavitário; ii) avaliar quantitativamente as propriedades óticas de restaurações em compósito em que o ângulo cavo-superficial não foi biselado durante o preparo cavitário; iii) comparar os resultados obtidos nos objetivos anteriores para determinar quantitativamente qual a relevância do bisel no ângulo cavo-superficial de restaurações em compósito de cavidades de classe IV.
Trata-se de um estudo observacional e prospetivo de resultados obtidos em peças dentárias através do Espectrofotómetro Jasco V-560 (500 a 300 nm, resolução até 0,1 nm) com monocromador duplo e esfera integradora para análise de sólidos através de reflexão difusa (300-500 nm), disponibilizado pelo Departamento de Química da Universidade de Aveiro.
Em estudos anteriores aponta-se para que o bisel confira uma vantagem estética quando executado em cavidades de classe IV em dentes anteriores. Todavia, não foi possível com este estudo, definir qual o tipo de vantagem estética que o bisel confere, uma vez que quando analisado, este mostrou evidências significativas apenas na zona ultravioleta do espectro de reflexão. As características estéticas até hoje estudadas, foram apenas evidenciadas na zona visível do espectro de reflexão, deixando assim uma incógnita relativamente ao modo de interpretação dos resultados obtidos no presente estudo, no campo das características estéticas. A Medicina Dentária Restauradora, visa garantir o aspeto mais natural possível à restauração efetuada, no entanto, as vantagens estéticas são muito complexas de ser quantificadas e o presente estudo objetivava exatamente isso, no entanto não foi possível quantificar essa diferença, porquanto se trata de um tema significativamente subjetivo.
The dentistry aesthetic is a complex issue that depends on multiple factors and increasingly increases the importance given either by patients or by professionals in an attempt to meet or exceed expectations. The aim of this study was to evaluate the importance of the bezel cavosurface angle in the cavity preparation of class IV cavities in esthetic restorations with composite resins. More specifically, the objective is to: i) quantitatively evaluate the optical properties of composite restorations in the cavosurface angle was beveled during cavity preparation; ii) quantitatively assess the optical properties of composite restorations in the cavosurface angle was left intact during cavity preparation; iii) to compare the results obtained in previous objectives to quantitatively determine the relevance of the bevel on cavosurface angle restorations of class IV cavities composite; iv) make a review of current literature on the subject under discussion. This is an observational and prospective study results of dental pieces by Jasco V-560 spectrophotometer 500-300 nm to 0.1 nm resolution) with double monochromator, integrating sphere for analysis by diffuse reflection solid (300-500 nm) of the Department of Chemistry at the University of Aveiro. It was concluded that the bezel provides an aesthetic advantage when running in class IV cavities in anterior teeth. However, it was not possible to define the type of aesthetic advantage, which can be seen in the reflection spectrum in the ultraviolet region, which is the area where you can check the actual existence and the advantage of cavosurface beveled angle. The aesthetic advantages are too complex to be defined, because it is a significantly subjective topic. Taking into account that objective in Restorative Dentistry, ensure the most natural look possible the restoration done, it can be stated that, based on the results obtained, the bevel gives the advantage to that level.
The dentistry aesthetic is a complex issue that depends on multiple factors and increasingly increases the importance given either by patients or by professionals in an attempt to meet or exceed expectations. The aim of this study was to evaluate the importance of the bezel cavosurface angle in the cavity preparation of class IV cavities in esthetic restorations with composite resins. More specifically, the objective is to: i) quantitatively evaluate the optical properties of composite restorations in the cavosurface angle was beveled during cavity preparation; ii) quantitatively assess the optical properties of composite restorations in the cavosurface angle was left intact during cavity preparation; iii) to compare the results obtained in previous objectives to quantitatively determine the relevance of the bevel on cavosurface angle restorations of class IV cavities composite; iv) make a review of current literature on the subject under discussion. This is an observational and prospective study results of dental pieces by Jasco V-560 spectrophotometer 500-300 nm to 0.1 nm resolution) with double monochromator, integrating sphere for analysis by diffuse reflection solid (300-500 nm) of the Department of Chemistry at the University of Aveiro. It was concluded that the bezel provides an aesthetic advantage when running in class IV cavities in anterior teeth. However, it was not possible to define the type of aesthetic advantage, which can be seen in the reflection spectrum in the ultraviolet region, which is the area where you can check the actual existence and the advantage of cavosurface beveled angle. The aesthetic advantages are too complex to be defined, because it is a significantly subjective topic. Taking into account that objective in Restorative Dentistry, ensure the most natural look possible the restoration done, it can be stated that, based on the results obtained, the bevel gives the advantage to that level.
Description
Keywords
Estética dentária Restauração de classes IV Bisel do ângulo cavo-superficial Resinas compostas Aesthetic dentistry Class IV restoration Bevel cavosurface angle composite resins