CLINICAL E VALUATION OF PREFORMED RESIN VENEERED STAINLESS STEEL CROWNS FOR PRIMARY INCISORS

Abstract

The purpose of this study was to evaluate the clinical performance of the "Whiter Biter" preformed resin veneered stainless steel crowns when used for restoration of primary maxillary InCISOrS.

The sample consisted of 20 badly destructed upper primary incisors. The patients' age ranged from two to five years and the sample was divided into two age groups. Group (I) children aged two to three years and Group (II) children aged four to five years.

The sample consisted of I 0 maxillary central incisors and 1 0 maxillary lateral incisors.

Prior to tooth preparation, the proper crown size was selected.

After local anesthesia injection, the tooth was prepared for the preveneered stainless steel crown. Following proper trimming and adaptation, crown was cemented. Clinical assessment for crown retention, veneer retention, colour stability of the veneer and response of the gingival tissue was done after one, three and six months.

Crown retention was reported in all cases (100%) during the six-months evaluation periods.

Regarding veneer retention, most of the "Whiter Biter" crown facings (85%) were intact after the six months of evaluation periods. Two cases had lost their facings completely and one case had a partially defective crowns.