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A 3‐year clinical study of tunnel restorations
Author(s) -
Strand Gunhild Vesterhus,
Nordbø Håkon,
Tveit Anne Bjørg,
Espelid Ivar,
Wikstrand Knut,
Eide Geir Egil
Publication year - 1996
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.1600-0722.1996.tb00096.x
Subject(s) - dentistry , enamel paint , dentin , radiodensity , glass ionomer cement , medicine , orthodontics , materials science , radiography , surgery
Tunnel restorations ( n =161) performed by 4 dentists were evaluated after a mean of 35 months in situ. Demineralized enamel was to be spared during preparation. The preparations were filled with a cermet glass ionomer (polyalkenoate) cement. Evaluation was carried out using clinical and radiographical criteria. During the observation period, approximately 16% of the restorations were replaced due to caries in dentin and 14% due to marginal ridge fracture. Cavitation in the approximal surface and/or increased radiolucency of the approximal enamel were observed in 34% of the remaining tunnel‐restored teeth. A significantly higher frequency of failures were registered when treating patients with a high caries activity, where the initial lesion was large, and where the restoration did not reach the approximal surface.