COMPARATIVE EVALUATION OF ANTIMICROBIAL EFFICIENCY OF DIODE LASER, SODIUM HYPOCHLORITE AND THEIR SYNERGISTIC EFFECT AGAINST ENTEROCOCCCUSFAECALIS CONTAMINATED ROOT CANALS-AN IN VITRO STUDY

Aim: To compare the efficacy of Diode laser irradiation procedure with that of sodium hypochlorite irrigation procedure and their synergistic effect against Enterococcus faecalis- contaminated root canals.Materials and methods: Forty root canals of extracted central incisor teeth with straight roots were chosen. The canals were enlarged with 40 size K file and randomly divided into four groups of 10 teeth each. After sterilization, all roots will be inoculated with Enterococcus faecalis for 7 days at 37˚C. The first group was used as a control, the second group was irrigated with 5.25% Naocl solution for 5 min, third group was irradiated with 810-nm Diode laser at output power from 2 W for 5*5secs and fourth group was irrigated with 5.25% Naocl followed by irradiation with Diode laser after drying the canal. The disinfecting efficacy of the groups were tested by collecting dentine chips from the inner walls of the canal and counting colony forming units of viable E. faecalis on agar plates. Statistical analysis were done using Anova and Post Hoc tukey test.Results: Diode laser alone and Diode laser with sodium hypochlorite shows complete elimination of E.faecalis from the root canal

Biological rehabilitation of complex oblique crown-root fracture segment reattachment

Dental trauma can predominantly affect the maxillary anteriors. Trauma can occur to any age group due to accidents, assaults, or leisure activities. The goal of the treatment for traumatically injured teeth is to return the teeth to acceptable function and form. In this case presentation, the endodontic and esthetic treatment approach of crown fracture is presented

Evaluation of push out bond strength of fiber post after treating the intra radicular post space with different post space treatment techniques: A randomized controlled In vitro trial

Objective: The aim of this study was to evaluate the push out bond strength after treating the post space with different irrigation procedures. Study Design: The study sample comprised of 60 recently extracted premolars. These teeth were placed in 5.25% sodium hypochlorite solution for 5 min and then washed under tap water. De-coronated samples were biomechanically prepared until F3 ProTaper and obturated using AH-Plus and 30# (6%) gutta-percha. The specimens were allowed to set for 24 h and then post space was prepared. The teeth were randomly assigned into three experimental groups based on the treatment technique: Group A – control, Group B – sodium hypochlorite and ethylene diamine tetra acetic acid (EDTA) and Group C – diode laser and EDTA. The samples were sectioned horizontally and push out bond strength was evaluated. The stereomicroscopic examination was done for evaluating the failure mode. One-way ANOVA variance followed by Tukey's post-hoc test was used for statistical analysis using SPSS software. Results: Use of diode laser does not enhance the bond strength of fiber post. Conclusion: Diode laser at a very low pulse can be used as an irrigant adjuvant to vaporize the cement residues. Using diode laser does not enhance the bond strength. EDTA as final irrigant increases the bond strength of fiber post