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1.
Article in English | LILACS | ID: biblio-900319

ABSTRACT

ABSTRACT: In this study, we report the case of a patient presenting a severe atrophic mandible that was treated with short implants and stable internal fixation, without using bone grafts or biomaterials. The patient had a long history of failure of several previous consecutive treatments. Cone-bean tomography revealed a small amount of mandibular bone, suggesting a high risk of fracture of the mandible during drilling and installation of osseointegrated implants. We opted to place 5 implants (4.0 × 7.0 mm) between the mental foramens. Since the mandible presented a high risk of fracture, we inserted a titanium plate (2.3 mm) as bone reinforcement along the entire length of the mandible, including the bilateral mandibular angles. A Branemark type prosthesis was installed 5 days after the procedure. After 24 months, the patient continues to be satisfied and presents good masticatory functions without any complications.


Subject(s)
Humans , Female , Middle Aged , Risk , Dental Prosthesis , Dental Implantation , Mandible , Mouth Rehabilitation
2.
Rev. cir. traumatol. buco-maxilo-fac ; 11(2): 75-82, Abr.-Jun. 2011. ilus, graf
Article in Portuguese | LILACS | ID: lil-792193

ABSTRACT

Objetivo: Este trabalho teve como objetivo avaliar a capacidade do laser de baixa potência em reduzir a sensação dolorosa durante a injeção da substância anestésica. Metodologia: Para isso, foram selecionados sessenta pacientes que iriam receber anestesia na região do palato. Esses pacientes foram divididos em três grupos: o grupo I recebeu irradiação com laser de AsGaAl antes da anestesia; o grupo II recebeu irradiação com a luz do fotopolimerizador antes da anestesia (placebo), e o grupo III não recebeu nenhum tratamento. A sensibilidade foi registrada por meio de uma escala visual numérica (EVN). Resultados: Após a análise dos resultados, pôde-se concluir que o laser de baixa potência de Arseniato de Gálio-Alumínio, segundo protocolo utilizado, promoveu uma redução da dor resultante da aplicação do anestésico na região do palato, quando utilizado previamente ao ato anestésico.


Porpuse: The aim of this study was to evaluate the low level laser capacity in reducing the pain during the anesthetic injection. Metodology: Sixty patient that would receive anesthesia in palate area were selected. Those were divided in three groups: the group I received irradiation with Gallium/Aluminium/Arsenide (GaAlAs) laser before the anesthesia, the group II received irradiation with the light curing unit device before the anesthesia (placebo) and the group III didn't receive treatment. The sensibility was registered through a numeric visual scale (NVS). Results: After the analysis of the results it can be ended that the GaAlAs low level laser, according the parameters used, promoted a pain reduction resulting from the anesthetic application in palate area, when previously used to the anesthetic action.

3.
Stomatos ; 14(27)jul.-dez. 2008.
Article in Portuguese | LILACS | ID: lil-567247

ABSTRACT

O desempenho clínico das restaurações de resina composta (RC) está diretamente relacionado com a qualidade da polimerização obtida através dos aparelhos fotopolimerizadores. O propósito deste estudo foi avaliar a microdureza de uma RC polimerizada com três diferentes fontes de luz, comparando-as entre si. Foram utilizados os aparelhos de luz halógena convencional [Visilux 2 - 3M] (A), um LED de primeira geração [Optilight Plus- Gnatus] (B), e um LED de terceira geração [Radii-SDI] (C). Foram confeccionados trinta corpos de prova utilizando a RC Filtek Z250 (3MESPE), dividindo-os em três grupos. As amostras foram submetidas ao teste de microdureza Vickers nas superfícies de topo e base. Os resultados estatísticos mostraram que as amostras do grupo B apresentavam os menores valores, tanto na base quanto no topo (p<0,01). Conclui-se que, entre os LEDs estudados, o Radii mostrou os melhores resultados de microdureza, sendo semelhantes ao aparelho de luz halógena.


Clinical performance of composite resins is closely related to the quality of the polymerization process. The purpose of this study was to evaluate the microhardness of a composite resin when polymerized by three different light sources (Conventional/halogen – Visilux2, 3M; First generation LED – Optilight Plus, Gnatus and Third generation LED – Radii, SDI). Thirty samples were prepared made of Filtek Z250 A2 composite resin (3M-Espe) and divided into three groups. Samples were subjected to microhardness test and results shown in Vickers scale, at the top and the bottom of each sample. Statistical analysis showed that samples cured with fi rst generation LED presented the lowest values for Vickers hardness, either at the top or the bottom. In conclusion, it is possibleto observe that third generation LED and halogen lamps are effective as curing units, presenting similar results in microhardness tests.


Subject(s)
Equipment and Supplies , Dental Materials , Composite Resins , Hardness Tests
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