Results: 102

Effect of clinical and laboratory techniques of cementation on the assessment of marginal and internal fit of prosthetic elements

Braz. j. oral sci; 23 (), 2024
Aim: The aim of this in vitro study was to compare machine and manual cementation of prosthetic elements by measuring internal and marginal fits. Methods: Eighteen anatomic prefabricated abutments were used to manufacture zirconia copings in the Ceramill (n=9) and Lava systems (n=9). The copings were cem...

The effect of aging on the accuracy of marginal adaptation and fracture resistance of CAD/CAM PEEK single crown restoration

Braz. j. oral sci; 23 (), 2024
Aim: In recent years, great advances have been made in the use of CAD/CAM to prepare fixed restorations. The marginal and internal fit of these restorations is a principal determinant for their clinical success. In addition, the nature of the oral environment affects the mechanical properties of these re...

Marginal gap of zirconia and lithium disilicate frameworks produced by the CAD-CAM technique through a comparator microscope – in vitro analysis

Braz. dent. sci; 27 (1), 2024
Objective: The aim of this study was to evaluate the marginal gap of frameworks produced using the CAD-CAM system, from zirconia and lithium disilicate blocks, adapted to a tooth preparation and a gypsum die. Material and Methods: For this study, a human first molar tooth was used as a ...

Adaptación marginal e interna de cofias fabricadas por métodos convencionales, CAD/CAM de fresado y sinterizado por láser
Marginal and internal adaptation of copings manufactured by conventional methods, CAD/CAM milling and laser sintering

Rev. ADM; 80 (4), 2023
Introducción: la adaptación marginal e interna de nuestras restauraciones fabricadas por fundición sistemas de fresado y sinterización láser es uno de los factores clínicos más importantes para el éxito de las prótesis fijas, previniendo el riesgo de microfiltración y enfermedad periodontal. ...

The Effect of Immediate Dentin Sealing on the Marginal Adaptation of LithiumDisilicate Overlay Restorations using different types of luting agents

Braz. dent. sci; 26 (3), 2023
Objective:This study evaluated the effect of immediate dentin sealing on the marginal adaptation of lithium disilicate overlays with three different types of resin-luting agents: preheated composite, dual-cure adhesive resin, and flowable composite. Materials and Methods: Forty-eight maxillary first...

Fit of metal-ceramic crowns: effect of coping fabrication method and veneering ceramic application

Braz. j. oral sci; 21 (), 2022
Aim: To evaluate the influence of cobalt-chromium (Co-Cr) coping fabrication methods and ceramic application on the marginal and internal fit of metal-ceramic crowns. Methods: Co-Cr copings for metal-ceramic crowns were prepared by lost wax casting or CAD-CAM machining of sintered blocks. The fit was ana...

Influence of restorative materials on occlusal and internal adaptation of CAD-CAM inlays

Braz. j. oral sci; 21 (), 2022
Aim: To evaluate the occlusal and internal marginal adaptation of inlay restorations made of different materials, using CAD-CAM. Methods: Preparations were made for MOD inlays of one-third intercuspal width and 4 mm depth in 30 third human molars. The teeth were restored ...

Avaliação do tipo de retenção e o uso de diferentes intermediários na adaptação de próteses unitárias sobre implantes

Atualmente, devido a perda do elemento dentário e a procura por um tratamento estético e principalmente funcional, a reabilitação com próteses sobre implante tem sido amplamente empregada, com elevada previsibilidade a longo prazo. Com isso, muito tem sido relatado na literatura acerca das possívei...

Acurácia dimensional e adaptação de endocrowns obtidas por diferentes ferramentas de manufatura assistida por computador

A partir dos avanços da tecnologia CAD/CAM na Odontologia, observa-se a crescente utilização da manufatura aditiva na confecção de peças protéticas. Este trabalho propões a avaliação da acurácia interna e linha de cimentação de endocrowns produzidas através de manufatura aditiva e subtrativ...