Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 1 de 1
Filtrar
Mais filtros

Base de dados
Ano de publicação
Tipo de documento
Assunto da revista
País de afiliação
Intervalo de ano de publicação
1.
Clin Oral Investig ; 15(6): 895-900, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20941634

RESUMO

Unnecessary over-preparation of carious enamel often occurs clinically during operative caries management. The working hypothesis to be investigated in this study is the potential for bio-active glass air abrasion to remove selectively only demineralised enamel in artificial enamel lesions when compared to equivalent alumina air abrasion, so potentially minimising cavity over-preparation. Bisected artificial, paired smooth surface enamel lesions on ethics-approved, extracted sound human molars were created and subsequently air abraded with 27 µm alumina (n = 19) and bio-active glass (n = 19). The difference between pre-operative lesion boundary and post-operative cavity margin was calculated following optical confocal fluorescent assessment of the lesion boundary. Data indicated mean% over-preparation (sound enamel removal) of 176% with alumina and 15.2% for bio-active glass (p = 0.005). Bio-active glass abrasion removed completely the demineralised enamel from artificial lesions with clinically insignificant over-preparation of sound tissue, indicating technique selectivity towards grossly demineralised enamel. Alumina air abrasion resulted in substantial enamel removal in both sound and demineralised tissues indicating the operator selectivity required to use the techniques effectively in clinical practice.


Assuntos
Abrasão Dental por Ar/métodos , Esmalte Dentário/patologia , Materiais Dentários/química , Vidro/química , Desmineralização do Dente/terapia , Abrasão Dental por Ar/instrumentação , Óxido de Alumínio/química , Cerâmica , Preparo da Cavidade Dentária/métodos , Corantes Fluorescentes , Humanos , Teste de Materiais , Microscopia Confocal , Rodaminas , Fatores de Tempo , Desmineralização do Dente/patologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA