Lower primary molar rehabilitation with anatomical variation and severe caries: case report.

Abstract

Introduction: Dental caries is the most common non-communicable disease worldwide, where there is loss of the hard tissues of the tooth: it is dynamic, mediated by biofilm and modulated by diet, including biological, psychosocial, environmental and behavioral factors. The restoration of choice in primary teeth with severe caries are nickel chrome crowns. The lower primary first molar can present three roots as an anatomical variation, modifying the occlusal morphology, and can be restored using a contralateral crown for its rehabilitation. Objective: To present as an option the placement of a preformed upper crown in a lower molar with anatomical variation and severe caries. Case presentation: A 5 year 5 month old patient attended in the clinic of the specialty of the Universidad Autónoma del Estado de México with a chronic alveolar abscess in the lower right first molar, rehabilitating with a pulpectomy filled with Vitapex, For its restoration, a preformed nickel chrome contralateral crown was placed on the first lower right primary molar #4, fit and sealing was checked by means of bitewing radiography and occlusion was verified. It was cemented with type I glass ionomer. Conclusion: The rehabilitation of lower molars with severe caries and anatomical variation can be achieved by placing contralateral nickel chrome crowns, achieving adequate marginal adaptation; maintain the mesiodistal and buccolingual diameter without affecting the occlusion.