Rehabilitation of Patient with Biocorrosion and Attrition Using Lithium Disilicate Restorations: Case Report

Abstract

Introduction: Tooth wear is a multifactorial condition, in which three mechanisms can be classified: attrition, abrasion and biocorrosion, which compromise the dental tissues, affecting the structure and function, and the patient's quality of life. Rehabilitation of tooth wear can be achieved using adhesive techniques and ceramic materials such as lithium disilicate. Objective: To present the case report with non-carious lesions like biocorrosion and dental attrition, treated with indirect restoration techniques and minimally invasive techniques. Case presentation: A 53-year-old male patient whose reason for consultation was "I want to fix my teeth". Clinically generalised biocorrosion was observed; besides the abfractions and attrition, radiographically he did not present pathologies. The treatment was divided into four phases, the first focused on prophylaxis, removal of restorations and placement of provisional restorations. In the second phase, a mock-up test was carried out to verify the diagnostic wax-up and occlusal stability, in addition to the lengthening of crowns in the anterior sector and to make new provisionals. In the third phase, the definitive restorations made of lithium disilicate were cemented using adhesive techniques. In the fourth phase, the stability of the treatment was verified. A functional occlusion was established, along with a favourable aesthetic with good periodontal health. Conclusions. The use of restorations using adhesive techniques to manage conditions such as biocorrosion and attrition is a good alternative to preserve the tissue remnant and achieve a treatment with a favourable long-term prognosis.