Results: 74

Accuracy of intraoral and extraoral digital data acquisition for dental restorations

J. appl. oral sci; 24 (1), 2016
ABSTRACT The computer-aided design (CAD) and computer-aided manufacturing (CAM) process chain for dental restorations starts with taking an impression of the clinical situation. For this purpose, either extraoral digitization of gypsum models or intraoral digitization can be used. Despite the increasing ...

Validação do uso de modelos digitais no Objective Grading System do Board Americano de Ortodontia

Modelos dentários de gesso são muito utilizados tanto na prática quanto em pesquisa odontológica. Além de possuírem valor legal, eles auxiliam no diagnóstico e planejamento dos casos clínicos. No entanto, com o avanço das técnicas digitais, estes tendem a perder espaço para os modelos de estud...

Secção anatômica manual e automatizada de modelos 3D de côndilos mandibulares: proposição de método e avaliação de confiabilidade

O objetivo deste estudo foi determinar os planos de secção dos côndilos mandibulares e a confiabilidade de 2 métodos de secção de imagens tridimensionais (3D) destas estruturas anatômicas, denominados como: manual e automatizado. As imagens 3D foram adquiridas com a utilização de tomografias com...

Prosthetic abutment influences bone biomechanical behavior of immediately loaded implants

Braz. oral res. (Online); 30 (1), 2016
Abstract This study aimed to evaluate the influence of the type of prosthetic abutment associated to different implant connection on bone biomechanical behavior of immediately and delayed loaded implants. Computed tomography-based finite element models comprising a mandible with a single molar implant we...

Prototipagem: aplicações na cirurgia crâniomaxilo- facial do Instituto Nacional de Traumatologia e Ortopedia (INTO)- RJ

Rev. bras. cir. plást; 30 (4), 2015
A prototipagem é um processo de construção para obter protótipos físicos a partir de modelos 3D digitais. A introdução da prototipagem na medicina é recente. Caso1 - Paciente de 18 anos portador de defeito craniano de 192 cm2 secundário a uma craniotomia descompressiva. Foi feita uma cranioplast...

Reliability of Bolton analysis evaluation in tridimensional virtual models

Objective: The present study aimed at evaluating the reliability of Bolton analysis in tridimensional virtual models, comparing it with the manual method carried out with dental casts.Methods:The present investigation was performed using 56 pairs of dental casts produced from the dental arches of patient...

Dentoalveolar mandibular changes with self-ligating versus conventional bracket systems: A CBCT and dental cast study

OBJECTIVE: The aim of the present study was to compare dentoalveolar changes in mandibular arch, regarding transversal measures and buccal bone thickness, in patients undergoing the initial phase of orthodontic treatment with self-ligating or conventional bracket systems. METHODS: A sample of 25 patients...

Immediate impact of rapid maxillary expansion on upper airway dimensions and on the quality of life of mouth breathers

OBJECTIVE: To assess short-term tomographic changes in the upper airway dimensions and quality of life of mouth breathers after rapid maxillary expansion (RME). METHODS: A total of 25 mouth breathers with maxillary atresia and a mean age of 10.5 years old were assessed by means of cone-beam computed tomo...

Periodontal and dental effects of surgically assisted rapid maxillary expansion, assessed by using digital study models

OBJECTIVE: The present study assessed the maxillary dental arch changes produced by surgically assisted rapid maxillary expansion (SARME). METHODS: Dental casts from 18 patients (mean age of 23.3 years) were obtained at treatment onset (T1), three months after SARME (T2) and 6 months after expansion (T3)...

An interview with Sylvia Frazier-Bowers

Anon.