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Clinical performance and marginal adaptation of class II direct and semidirect composite restorations over 3.5 years in vivo.

Abstract：

OBJECTIVE:The study evaluated the clinical performance and marginal adaptation of direct and semi-direct class II composite restorations in a split-mouth design over 3.5 years. DESIGN:44 upper posterior teeth in 11 adults with primary carious lesions were treated with 22 direct and 22 semi-direct restorations. Conventional cavities were prepared for both types of restorations. A fine fine hybrid composite (APH) and a multifunctional adhesive system (Prisma universal bond 3) were used for all restorations. The incremental "3-sited light curing" technique was applied to direct restorations. Semi-direct inlays were prefabricated on silicone casts and post-cured using light and heat. Clinical performance was evaluated using modified USPHS parameters, while marginal adaptation was judged on replicas, using SEM and a standardized evaluation technique. RESULTS:Clinical results after 3.5 years revealed a 100% retention rate with no fractures, sensitivity or recurrent caries for both types of restorations. SEM-evaluation of the occlusal margins showed at the tooth-restoration interface relatively low rates of marginal openings over the observation period (4-8%). Marginal restoration fractures ranged between 1 and 2%, marginal tooth fractures between 3 and 9%. Differences between the restorative techniques and after the different time observation periods were not statistically significant. Proportions of marginal fractures and openings at the restoration-luting composite interface were less than 10% after 3.5 years. CONCLUSION:The results indicated no significant differences for direct and semi-direct fine hybrid composite restorations in medium size cavities in posterior teeth with respect to clinical performance and marginal adaptation over 3.5 years.

journal_name

J Dent

journal_title

Journal of dentistry

authors

Spreafico RC,Krejci I,Dietschi D

doi

10.1016/j.jdent.2004.11.009

keywords:

subject

Has Abstract

pub_date

2005-07-01 00:00:00

pages

499-507

issue

eissn

0300-5712

issn

1879-176X

pii

S0300-5712(04)00205-2

journal_volume

pub_type

临床试验,杂志文章,随机对照试验

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Clinical performance and marginal adaptation of class II direct and semidirect composite restorations over 3.5 years in vivo.