The Clinical Evaluation of Composite Resin Inlay

Abstract

Composite resin inlay (CR-inlay) with the indirect system, developed several years ago, is said to have superior properties over the conventional resin restoration system. CR-inlay could be used for the esthetic restoration of premolars, but indications of this in pediatric dentistry and significance of its clinical application have not been established.
The purpose of this study was to evaluate the compatibility of CR-inlay restorations on young premolars by periodical clinical observation.
Fifty carious proximal surfaces of premolars were the subjects for this clinical study. On the first day of the treatment, class II cavities were prepared and impressions for working casts were taken. CR-inlays were fabricated in the laboratory according to the manufacturer's instructions. On the second day of the treatment, CR-inlays were adjusted in situ and cemented with CR cement. These CR-inlay restorations were evaluated by clinical exploration at intervals of every 6 months.
The results based on observation for 1 year and 6 months were as follows: 24restorations were sound, one restoration was fractured,17 restorations showed chipped margins,10 restorations showed marginal pigmentation while all restorations showed good or acceptable color match, although two resotrations caused pain.