Clinical performance of direct composite resin restorations
Direct resin composite can offer an acceptable medium-term option for the treatment of severe, generalized tooth wear; molar restorations may require higher maintenance.

The aim was to evaluate the 5-year performance of direct resin composite restorations, prescribed for patients with severe tooth wear, requiring full-mouth rehabilitation.

A convenience sample of 34 patients was recruited to a prospective trial. The participants were provided 1269 full-mouth direct resin composite restorations by 5 experienced operators, using the DSO technique. Treatment resulted in an increase in the vertical dimension of occlusion (VDO). Failure was assessed at three levels.

- Annual failure rates of ? 2.2% and ? 2.9% were respectively reported for the anterior and posterior restorations with a mean observation time of 62.4 months.

- The completion of an anterior restoration with the need for further appointments resulted in significantly more Level 2- & 3- failures.

- An evaluation of the performance of the premolar and posterior maxillary restorations showed significantly lowered risks of certain types of failures, compared to the molar and posterior mandibular restorations.

At 5.5 years, 2.3% of the overall restorations displayed catastrophic, (Level 1) failures. Molar restorations, posterior mandibular restorations, and anterior restorations requiring two further sessions for completion were associated with significantly higher risks for failure.

Journal of Dentistry