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Two‐year assessment of anterior resin restorations inserted with two acid‐etch restorative procedures
Author(s) -
QVIST VIBEKE,
STRÖM CARSTEN,
THYLSTRUP ANDERS
Publication year - 1985
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/j.1600-0722.1985.tb01979.x
Subject(s) - bevel , comonomer , dentistry , materials science , chamfer (geometry) , orthodontics , medicine , composite material , mathematics , geometry , monomer , structural engineering , engineering , polymer
Fifty‐two pairs of Class III restorations in a microfilled resin Silar were inserted in acid‐etched cavities. A bevel preparation was performed along the margin of one cavity (A) whereas the other cavity was treated with the surface‐active comonomer NPG‐GMA before filling (B). After finishing of the restorations, the surface of the type B filling was re‐etched and covered with a layer of non‐composite, low‐viscous resin. Following a 2‐yr observation period 65 restorations were classified as “good”, 33 were “adequate” and 4 were “unsatisfactory” or were replaced during the study period. The only significant difference between type A and type B restorations was marginal discolorations which most frequently were observed along the beveled type A restorations. The occurrence of such failures was increased by marginal deficiencies and occlusion/articulation on the restorations.