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Marginal leakage in class II‐restorations after use of ceramic‐inserts luted with different materials
Author(s) -
; Hahn,
Schaller,
Müllner,
Michael Hellwig
Publication year - 1998
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1046/j.1365-2842.1998.00281.x
Subject(s) - inlay , composite number , materials science , ceramic , composite material , dentistry , medicine
SUMMARY The efficiency of using prefabricated ceramic inlays to prevent microleakage has been discussed in different investigations. The purpose of this study was to evaluate the marginal microleakage of a new glass ceramic inlay system in combination with two different composite luting materials and one polyacid‐modified composite, respectively. Standardized class II cavities ( n = 60) were filled with (1) Empress ® inlays fixed with a highly viscous luting composite as a control group, and with glass ceramic inlays (Cerana ® ) in combination with (2) a highly viscous luting composite, (3) a low‐viscous luting composite and (4) a polyacid‐modified composite, respectively. After thermocycling the marginal quality was analysed with scanning electron microscopy, and the dye penetration along the cavity walls was measured. The use of the Cerana ® inlays with a polyacid‐modified composite resin did not reveal a good marginal adaption. However, the combination of the Cerana ® and the Empress ® inlays with the highly viscous composite exhibited a comparable marginal fit. Within the limitations of an in vitro study it is concluded that the combination of the new glass ceramic inlays with a polyacid‐modified composite cannot be recommended for clinical use.