ABSTRACT
Resumen El control micro-biológico y el selle tridimensional del conducto radicular son factores escenciales para alcanzar el éxito del tratamiento endodóntico. Actualmente la tasa de éxito para la micro-cirugía endodóntica es acerca del 92% cuando esta es realizada con el uso del microscopio como coadyudante en los procedimientos de conformación quimico-mecánica y selle del tercio apical. En consecuencia, el objetivo de este artículo fue hacer una revisión actualizada de todos los procedimientos clínicos retropreparación y desinfección del conducto radicular en micro-cirugía endodóntica, la cual fue soportada con la mejor evidencia disponible a la fecha.
Abstract The micro-biological control and three-dimensional sealing of the root canal are the determining factors to achieve the success of endodontic treatment. Currently, the success rate for endodontic microsurgery is 92% when using the microscope as a coadjuvant in the processes of chemical-mecanical preparation and filling of the apical third. Consequently, the objective of this article was to update all the clinical procedures of retropreparation and disinfection of the root canal in endodontic microsurgery, which was supported with the best evidence available to date.
ABSTRACT
Background: The commonly accepted idea concerning root planing is that excessive removal of cementum is not necessary for removal of endotoxins. The ideal instrument should enable the removal of all extraneous substances from the root surfaces, without causing any iatrogenic effects. Aim: To compare the remaining calculus, loss of tooth substance, and roughness of root surface after root planing with Gracey curette, ultrasonic instrument (Slimline® insert FSI-SLI-10S), and DesmoClean® rotary bur. Materials and Methods: The efficiency of calculus removal, the amount of lost tooth substance, and root surface roughness resulting from the use of hand curette, ultrasonic instrument, and rotary bur on 36 extracted mandibular incisors were examined by SEM. We used three indices to measure the changes: Remaining calculus index (RCI), Loss of tooth substance index (LTSI), and Roughness loss of tooth substance index (RLTSI). Twelve samples were treated with each instrument. The time required for instrumentation was also noted. Statistical Analysis: Kruskal-Wallis ANOVA was used for multiple group comparisons and the Mann-Whitney test for group-wise comparisons. Analysis was carried out with SPSS® software (version 13). Results and Conclusion: The RCI and LTSI showed nonsignificant differences between the three groups. RLTSI showed a significant difference between Slimline™ and hand curette as well as Slimline™ and Desmo-Clean™. Slimline™ showed the least mean scores for RCI, LTSI, and RLTSI. Thus, even though the difference was not statistically significant, Slimline™ insert was shown to be better than the other methods as assessed by the indices scores and the instrumentation time.
Subject(s)
Curettage/instrumentation , Dental Calculus/pathology , Dental Calculus/therapy , Dental Cementum/ultrastructure , Equipment Design , Humans , Materials Testing , Microscopy, Electron, Scanning , Root Planing/instrumentation , Rotation , Tooth Root/ultrastructure , Ultrasonic Surgical Procedures/instrumentationABSTRACT
During root canal preparation procedures, the potential for instrument separation is always present. Files, a lentulo, a Gates-Glidden (GG) bur or any manufactured obstruction can be left behind in the canal. Nickel-titanium (NiTi) rotary files are in common usage in these days. Despite their undeniable advantages, there is a potential risk of separation within the canals. It is very rapid, unpredictable, and creates a great deal of stress for the practitioner. When an endodontic instrument separates, the best option is to remove it. Ultrasonic instruments and microscopes have improved the success rate for removing separated instruments. But it is difficult and not always possible. Therefore prevention is the key. In this case report, several management methods of separated file in the canal are presented.
Subject(s)
Dental Pulp Cavity , Root Canal Preparation , UltrasonicsABSTRACT
The preventive maintenance of medical instruments is very important in field hospital. Because of effective preventive maintenance,the ultrasonic instrument ran normally and efficiently in field hospital. The method of preventive maintenance are introduced,including quakeproof,power supply,hot & moist resistance,dustproof,antijam,probe maintenance,etc. These maintenance methods can provide reference for diversified military affairs.