Clinical Performance of MTA Cavity Lining in the Treatment of Deep Caries Lesions

Aim of this clinical study is to compare the clinical success of two lining materials regarding the maintenance of pulp vitality in the treatment of deep caries lesions over 4- years. A hundred permanent premolar and molars with deep caries lesions without pulp involvement (aged between 18 and 30 years) in 73 patients were randomly divided into the following groups: calcium hydroxide cement (Ca(OH)2) (Dycal, Dentsply/Caulk, Dentsply International Inc, Milford, DE, USA) group and mineral trioxide aggregate (MTA) (Dentsplay, Tulsa Dental, Johnson city, USA) group. Final restoration with a resin-based composite (Gradia Direct Posterior, GC, Tokyo, Japan) in a single session was performed. The following-up period was 6-, 12-, 24-, 36- and 48-months. Two calibrated examiners performed the clinical examination of the pulpal symptoms