RESUMO
The causes of tooth erosion are varied, but all are associated with a chemical attack on the teeth and resulting loss of tooth structure. Etiologic factors related to erosion cited in the literature include bulimia, eating acidic foods, soft drink consumption, acid reflux, and swimming, among others. This clinical report suggests that chronic use of headache powders can also be a factor leading to tooth erosion.
Assuntos
Anti-Inflamatórios não Esteroides/efeitos adversos , Aspirina/efeitos adversos , Erosão Dentária/etiologia , Administração Sublingual , Adulto , Anti-Inflamatórios não Esteroides/administração & dosagem , Aspirina/administração & dosagem , Coroas , Feminino , Seguimentos , Cefaleia/tratamento farmacológico , Humanos , Placas Oclusais , Pós , Erosão Dentária/terapia , Dimensão VerticalRESUMO
Adhesive resin systems have become increasingly popular as they have been demonstrated to infiltrate conditioned vital dentin to cohesively hybridize the biologically altered substrates for adhesive bonding. This paper is a review of the biologic and clinical use of Syntac (Ivoclar Vivadent) and Variolink (Ivoclar Vivadent) adhesive systems for cohesive hybridization of vital dentin to prevent patient postoperative hypersensitivity and bacterial microleakage following clinical preparation.
Assuntos
Adesivos Dentinários , Cimentos de Resina , Cimentação , Infiltração Dentária/prevenção & controle , Sensibilidade da Dentina/prevenção & controle , Humanos , Cimentos de Resina/uso terapêuticoRESUMO
Because of some inadequacies associated with the direct fill posterior composite resin, the inlay/onlay form of the same material or ceramic agents has been introduced. This clinical investigation measured the wear rate of several types of luting agents with both resin and ceramic restorative systems and identified several factors related to wear of the cementing agent.
Assuntos
Bis-Fenol A-Glicidil Metacrilato , Resinas Compostas , Porcelana Dentária , Restaurações Intracoronárias/métodos , Cerâmica , Desenho Assistido por Computador , Preparo da Cavidade Dentária , Cimentos Dentários/química , Infiltração Dentária/prevenção & controle , Planejamento de Prótese Dentária , Estudos de Avaliação como Assunto , Humanos , Microscopia Eletrônica de Varredura , Tamanho da Partícula , Propriedades de SuperfícieAssuntos
Resinas Compostas , Coroas , Facetas Dentárias , Metacrilatos , Cimentos de Resina , Silanos , Porcelana Dentária , HumanosRESUMO
A convergence of 20 degrees for full crowns is the most likely to be seen clinically, as determined by random measurements taken at a dental laboratory. Castings did not seat without cement, by an average of 215 micron at 10 degrees of convergence, or by 99 micron at 20 degrees of convergence. Biting forces will seat a casting approximately 150 micron, but will cause random concentrations of force against tooth structure, thus compressing it. All castings tend to rebound from this position. Zinc phosphate and polycarboxylate cemented crowns seated to 33 micron and 20 micron respectively when relieved, but each were elevated to 112 micron when not relieved. A silicophosphate cement displaced crowns with 20 degrees of convergence 122 micron under "ideal" clinical conditions, even when relieved; and with CBA 9080 cement, more than 500 micron. A die relief method was found to be the most suitable of the three casting compensation techniques. Casting retention, after cementation, was increased by 25%.
