Effect of different cement types on monolithic lithium disilicate complete crowns with feather-edge preparation design in the posterior region.
J Prosthet Dent
; 115(6): 678-83, 2016 Jun.
Article
em En
| MEDLINE
| ID: mdl-26724849
ABSTRACT
STATEMENT OF PROBLEM:
Ideally, tooth preparation for complete crowns should require the removal of the smallest amount possible of sound tooth structure to maximize the strength of the remaining tooth. Some preparation designs, such as the feather-edge margin, are less invasive. However, limited data are available regarding monolithic lithium disilicate crowns for molars and premolars with this type of margin geometry.PURPOSE:
The purpose of this retrospective study was to evaluate the clinical outcome and survival of monolithic lithium disilicate crowns in the posterior region fabricated with feather-edge margins and cemented either with conventional (glass ionomer) or resin self-etching cement in 2 private practices. MATERIAL ANDMETHODS:
A total of 257 monolithic lithium disilicate restorations on posterior teeth (108 premolars, 149 molars) were placed in 158 patients. All teeth were prepared with feather-edge margins and restored with single crowns. The modified California Dental Association (CDA) criteria were used to clinically evaluate participants recalled between June and December 2014.RESULTS:
The mean ±standard deviation follow-up time was 24 (±13.6; range 6-75) months. Three crowns were replaced during the follow-up period because of the bulk fracture of the material (98.83% survival rate). No other technical or biological failure was observed.CONCLUSIONS:
In this retrospective evaluation, monolithic lithium disilicate crowns with feather-edge margins yielded clinical outcomes similar to those reported with other margin designs and materials.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Planejamento de Prótese Dentária
/
Coroas
/
Cimentos Dentários
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Porcelana Dentária
Tipo de estudo:
Observational_studies
/
Risk_factors_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article