Instrument separation is one of the most routinely encountered mishaps occurring in the arena of endodontics. Separation occurs unknowingly most times and we are left to ponder as to where to head next. It is majorly the lack of knowledge and skill that makes us panic in these times. The objective still remains to effectively clean as well as shape the root canal so that it can best receive the obturating material. Thus sudden breakage of a file during this critical phase leaves the clinician in an absolute dilemma. This review thereby throws light onto the various factors that remain in the hand of the clinician before proceeding for biomechanical preparation of the root canal so as to prevent instrument fracture. The correct application and knowledge of these techniques will prevent procedural mishaps from occurring and further enhance the quality of the treatment.

No abstract

Background: The root canal along with its complex anatomic difficulties poses a challenge to the endodontist while approaching to remove the old obturating material held within its confines during re-treatment procedures. An ideal root canal solvent hastens this process of dissolution of Gutta Percha without causing procedural errors in the process. Aim & Objective: To compare and evaluate the solubilizing efficacy of Orange Oil, Eugenol and Tween 80 on Gutta Percha. Materials and Methods: A total of seventy-five conventional gutta percha cones having ISO size 30 and 4% taper were selected for the study. The Gutta Percha cones were then divided into three groups at random: Group I: Orange Oil; Group II: Eugenol; Group III: Tween 80. The cones were pre weighted using an electronic weighing balance and noted as the Pre immersion weight (M1). Following this they were immersed for 15min in clear glass vials containing 2ml of the solvents in each of them. The cones were then post weighted and noted (M2). The difference in weights of the gutta percha cones was evaluated. Results: Orange oil showed the highest efficacy in solubilizing Gutta Percha. This was followed by Tween 80 which was a novel solvent used for dissolution. Eugenol proved to be least efficacious in dissolving. Conclusion: Orange oil showed superior solubilizing efficacy when compared to Tween 80 and Eugenol.prone to develop CTS. Larger research is needed to understand how physical exercise causes CTS. Bangladesh Journal of Medical Science Vol.22 (Special Issue) 2023 p.167-171

The advancements made in the field of endodontics are increasing every day. Introducing a broad spectrum of newer root canal instruments has been a boon to the endodontist. Nevertheless, inadequate knowledge about its correct usage has proved to be a bane in the real sense. With the availability of sufficient armamentarium, good management skills combined with an excellent clinical experience all together serve as the best possible combination in dealing with fractured instruments, which otherwise seem like a challenging task. The microbiological and biomechanical aspects are the deciding parameters during decision-making. Thus, the series of cases presented in this case report is about the successful retrieval of broken files from root canals using Masserann kits and ultrasonics.