Dark substrate masking technique with cemented dental contact lens over less translucent facet

Vol. 10 – Number 37 – 2020 Case report Page 38-45 Dark substrate masking technique with cemented dental contact lens over less translucent facet Lara Pepita de Souza Oliveira1 Rebeka de Oliveira Reis2 Ely Moacyr de Souza Portela3 Sybilla Torres Dias4 Cristiane Maria Brasil Leal5 Cristiano Pires e Silva6 Abstract Dental ceramics have an excellent ability to reproduce natural teeth appearance, but once the substrate has an altered coloration, it is necessary to mask this intercurrence, considering the characteristics of the ceramic and cement selected. This article aims to present a clinical case of rehabilitation with ceramic laminates to mask a darkened central incisor by planning a more opaque porcelain structure under a translucent contact lens. A female patient sought dental care complaining of dissatisfaction with smile aesthetics. It was clinically identified the presence of a Class IV darkened restoration in composite resin in element 11. In treatment planning harmony in the shape and color of elements 11 and 21 was aimed at through lithium disilicate lenses. An opaque intermediate structure was used to cover the darkening in tooth 11. The double molding technique was performed to obtain the working model. Prior to cementing, the surfaces were treated. In ceramics, conditioning with 10% hydrofluoric acid and 37% phosphoric acid, silane application and universal adhesive; in dental substrate, conditioning with 37% phosphoric acid and application of universal adhesive were performed. In laminates definitive cementation Allcem Venner cement was chosen. Patient reported satisfaction with treatment final aesthetics. Thus, cementation technique of a translucent laminate over an opaque facet is a good option for masking substrates with darkened coloration. Descriptors: Dental veneers, dental aesthetics, ceramic. 1 Master’s student in Dentistry (Oral Rehabilitation) – UFAM. Graduated in Dentistry – UEA. 2 Graduated in Dentistry – UEA. 3 Postgraduate student in Implantology – UEA. Graduated in Dentistry – UEA. 4 PhD student in Dentistry – FOP / UNICAMP. In Dentistry (Dental Prosthesis) – SLM / Campinas. Adjunct Professor of Fixed Prosthesis and Integrated Clinic – UEA. 5 Dr.ª in Dental Clinic (Dental Prosthesis) – FOP / UNICAMP. In Dental Prosthesis – SLM / Campinas. Esp. in Implantodontics – EBO. Adjunct Professor of Total Prosthesis – UEA. 6 Me. In Dental Clinic – UFAM. Esp. in Dental Prosthesis – PUC / MG. Assistant Professor of Fixed Prosthesis and Occlusion – UEA.