Endodontic and prosthetic management of the upper right canine through crown lengthening, deep margin elevation, and restoration with a lithium disilicate post-and-crown

Abstract

Introduction: endodontics is essential for oral health, encompassing the study of the structure, morphology, pathophysiology, diagnosis, prevention, and treatment of the dental pulp and periradicular tissues. Despite its effectiveness, treatments may present complications, making endodontic retreatment the first option in cases of failure. This procedure consists of removing previous filling material, performing a new chemomechanical preparation, and ensuring proper obturation. Additionally, depending on the case, complementary procedures such as deep margin elevation, crown lengthening, and placement of a post and crown may be required to preserve the remaining tooth structure through the ferrule effect. Thus, lithium disilicate crowns stand out as an option to restore masticatory, phonatory, and esthetic function. Objective: To comprehensively rehabilitate the upper canine #1.3 through tissue stabilization, elimination of infectious foci, and functional and esthetic restoration, documenting both the clinical and radiographic procedures. Methodology: a descriptive and observational approach was applied, focusing on presenting the clinical diagnostic, therapeutic, and follow-up process of a patient. The starting point was a comprehensive clinical and radiographic evaluation, followed by diagnosis and treatment planning. Results: Following treatment, the patient reported an absence of clinical and radiographic symptoms, allowing for the preservation of the tooth structure while restoring function and esthetics. Conclusions: Although teeth with failed endodontic treatment typically present a poor prognosis, permanent tooth loss can be avoided using appropriate techniques for correct root canal preparation, disinfection, and obturation, followed by rehabilitation with a post–crown restoration. This clinical case demonstrates that the function of the affected tooth can be successfully restored through proper intervention based on updated protocols. General field of study: Dentistry. Specific field of study: Endodontics. Type of study: Clinical case.