COMPARATIVE EVALUATION OF THE EFFECT OF DIFFERENT ROTARY INSTRUMENT SYSTEMS ON THE AMOUNT OF APICALLY EXTRUDED DEBRIS

Objectives: The purpose of our study is to examine in vitro the amount of debris extrusion from the apical after root canal preparation with different rotary instruments. Materials and Methods: In present study, 60 single root single-canal lower premolar human teeth were used. The teeth were randomly selected and divided into 4 main groups (n=15). Root canals are shaped by using 2Shape, One Curve and XP-3DEndo Shaper working in rotational motion and WaveOne Gold working reciprocal motion. Later, the weight of each eppendorf tube was weighed on a precision scale and the amount of debris extrusion from the apical was determined with 10ˉ4 precision by subtracting the empty weight of the tube. Since the parametric test assumptions were fulfilled in the evaluation of the data obtained regarding the amount of debris extrusion from the apical of file systems by loading them into the SPSS 22.0 program, One-Way Variance analysis was used and the level of error was taken as 0.05. Results: When the amount of debris extrusion from the apical is ordered from high to low, it was seen that there are 2Shape, One Curve, XP-Endo Shaper, WaveOne Gold. However, the difference between study groups was not statistically significant (p> 0.05). Conclusions: Considering the results obtained in terms of debris extrusion from the apical about the new generation files with different metallurgy, kinematics, structural features, designs and different configurations that we used ın present study, it was seen that these systems would not show any difference in terms of the effect of debris on the success of endodontic treatment

Antibiofilm Effect of Different Irrigation Solutions Activated with KTP Laser

Objectives: The aim of this study was to evaluate the antimicrobial efficacy of Potassium Titanium Phosphate (KTP) laser-activated irrigation solutions on intraradicular Enterococcus faecalis biofilms in invitro conditions by using a scanning electron microscope. Materials and Methods: 120 single-root, single canal permanent mandibular premolar human teeth were used. Sterilization and disinfection of the teeth were performed. E. faecalis biofilms were obtained after 4 weeks by re-inoculation procedures. Each group was divided into 6 groups consisting of 20 roots and root canal disinfection protocols were applied using irrigation solutions with 5.25% NaOCl, saline, super-oxidized water solution, 8ppm ozonated water, 2% CHX, 17% EDTA, all activated by KTP laser. It was smear-planted to a solid medium which split as before and after the disinfection applications for the aim of Counting Microorganism colonies from root canals and data were evaluated statistically. In this statistical evaluation one way ANOVA and Tukey tests were used. Before and after the irrigation procedures for presence and elimination of biofilm the root canals were processed for scanning electron microscopy and biofilm was examined on the standard images. Results: As a result of the statistical comparison performed among all groups, while NaOCl ensures the highest amount of elimination as a positive control group, the lowest amount of bacterial elimination was detected in the SF group that applied as the negative control group (P0,05), EDTA showed the lowest antibiofilm effect (

CONTEMPORARY ENDODONTIC OBTURATION TECHNIQUES: A COMPREHENSIVE LITERATURE REVIEW

The success of an endodontic treatment is excessively depends on obturation as well as irrigation. Hence, achiving a homogenious, impermeable and gap-free obturation plays a crucial role in endodontic treatment. Today, many materials and techniques have been developed for endodontic purpose such as those which applied with heat or vibration, those softened with non-toxic chemicals and those uses ultrasound energy. Some of these techniques are still preferred by proffessionals when some are abandoned. However, gutta-percha is the most used material either with or without sealer. Gutta-percha can be applied with cold or warm techniques. It’s known that warm gutta-percha technique leads a more homogenious obturation than cold techniques. Nevertheless, different obturation methods are convenient for different anatomic variations of root canal system. This review article summerize the contemporary and conventional obturation techniques with evaluation of their current status in endodontic implementation