Postoperative Pulpal Complications in Posterior Resin Composite Restorations Without Glass-ionomer Cement Lining

A 2-year Clinical Study on Postoperative Pulpal Complications Arising From the Absence of a Glass-ionomer Lining in Deep Occlusal Resin Composite Restorations

The purpose of this study is to observe the effects of glass-ionomer cement (GIC) lining on risk of pulpal complications in deep occlusal cavities with resin-based restorations.

Fifty three patients aged 18-30 years who had one or two deep occlusal carious lesions (≥ 3 mm in depth) in molars were recruited. Dental caries was removed and the prepared cavity was restored with resin composite using one of two restorative procedures: (1) without GIC lining; (2) with (resin-modified) GIC lining. Restored teeth were evaluated for any pulpal complications (subjective symptoms, objective signs or loss of tooth vitality) at one month (baseline), one year and two years after restoration.

Inclusion Criteria:

• Deep dental caries on occlusal surfaces of molar teeth

Exclusion Criteria:

• Shallow and moderate-depth caries
• Caries exposed pulp