(TC14) Novel Internal Repair Technique for External Cervical Root Resorption with Calcium Silicate Cement and Bioactive Hybrid Resin Material

Abstract: External cervical resorption (ECR) begins at a portal of entry around the cervical region of the tooth and results in loss of dental hard tissue. Internal repair treatment approach is preferred when the entry point is small, intraosseous, and inaccessible by an external approach. There is a lack of standardized internal repair treatment options incorporating endodontic and restorative materials developed in recent years. The aim of this study is to firstly propose a novel, evidence-based step-by-step internal repair treatment technique incorporated with calcium silicate cement and bioactive hybrid resin material to expand on treatment options for different stages of ECR. Specific protocols for internal repair were established following literature review on internal repair case studies and new research on dental biomaterials. Secondly, this study proposes an educational system, including a series of step-by-step advanced graphics, flowcharts, and videos, aiding clinicians and patients to better understand the disease and treatment procedure for ECR. ECR has posed substantial diagnostic and treatment planning challenges, even for the highly experienced clinician. Proper diagnosis utilizing advanced diagnostic tools and treatment including standardized procedures with updated dental materials can provide a better prognosis of the disease. The proposed step-by-step technique can potentially establish a new guideline for treatment of ECR. Finally, the advanced graphics for ECR treatment can be beneficial for clinicians to be able to visualize the steps of internal repair and can also elucidate the complex disease process for patients.