Esthetic rehabilitation of preschool patient with hypoplasia using acetate crowns: a case report

Abstract

Introduction: Enamel hypoplasia consists on the incomplete formation of the organic matrix of the enamel. It is characterized by grooves and loss of structure with rounded edges, which can compromise aesthetics and interfere on the form and function. Treatments can vary between microabrasion, restorations or single crowns. Among the types of treatment for more severe hypoplasia, acetate, celluloid or polyester crowns stand out due to their low cost, good longevity and easy handling, allowing to optimize clinical time and obtain satisfactory aesthetics. Goal: This case aims to rehabilitate a 3-year-old preschooler with hypoplasia in her upper central incisors using acetate crowns, seeking to reduce clinical time and bring lasting and satisfactory aesthetic results. Case report: Preschool patient, female, 3 years old, complete deciduous dentition, without malocclusions and with enamel hypoplasia on the incisal edge of the upper central incisors. The rehabilitation treatment of choice was direct restorations with the aid of acetate crowns. Conditioning was carried out with 37% phosphoric acid on the tooth surface, followed by the application of adhesive. To fill the crowns, composite resin was used, inserted into the acetate molds in small increments to reduce polymerization contraction, and subsequently light-cured for one minute on each face. After a 1-year follow-up, they maintained good adaptation, smoothness and satisfactory aesthetic results. Conclusion: Acetate crowns are a good option for the aesthetic rehabilitation of anterior teeth with hypoplasia. They have satisfactory aesthetic results, low cost, reduced clinical time and appropriate longevity.