Radiographic evaluation of root canal curvature in mesiobuccal canals of mandibular molars by different methods and its correlation with canal access angle in curved canals: An study.

Aims: The aim of this study is to compare three different methods of measuring root canal curvature and its correlation with canal access angle (CAA) in curved mesiobuccal canals of permanent mandibular first molars.

Materials And Methods: Sixty human mandibular first molars were used in this study. Standardized access cavities were prepared.

Scanning electron microscopic analysis to compare the cleaning efficiency of three different irrigation systems at different root canal levels: an in vitro study.

Aim: This study compared the efficacy of conventional, endovac and ultrasonic irrigation system for the removal of debris from root canal walls, using scanning electron microscopy (SEM) at cervical, middle and apical 3rd.

Materials And Methods: A total of 30 freshly extracted human mandibular premolars with complete root formation were selected and divided into group 1 endovac, group 2 conventional and group 3 ultrasonic. After instrumentation and irrigation, the teeth were sectioned in buccolingual direction and analyzed by SEM and the results were analyzed statistically by students unpaired 't' test.

Comparison of canal transportation and centering ability of rotary protaper, one shape system and wave one system using cone beam computed tomography: An in vitro study.

Aim: The aim of the present study was to compare the canal transportation and centering ability of Rotary ProTaper, One Shape and Wave One systems using cone beam computed tomography (CBCT) in curved root canals to find better instrumentation technique for maintaining root canal geometry.

Materials And Methods: Total 30 freshly extracted premolars having curved root canals with at least 10 degrees of curvature were divided into three groups of 10 teeth each. All teeth were scanned by CBCT to determine the root canal shape before instrumentation.

Effect of grape seed extracts on bond strength of bleached enamel using fifth and seventh generation bonding agents.

Background: The objective of this in-vitro study was to evaluate the effect of grape seed extract (oligomericproanthocyanidin complexes [OPCs]) on the bond strength of composite resin to bleached enamel using 5th and 7th generations of bonding agents.

Materials & Methods: Eighty maxillary central incisors were randomly assigned to four groups as follows: Group I (n=20): no bleaching (control); Group II (n=20): bleaching with 38% hydrogen peroxide gel, without the use of an antioxidant; Group III (n=20): bleaching followed by the use of 10% sodium ascorbate; Group IV (n=20) : bleaching followed by the use of 5% proanthocyanidin solution. All the four groups were further subdivided into two groups of ten teeth each depending on the adhesive system used in order to bond the resin composite to enamel surfaces.

Comparison of the antibacterial efficiency of neem leaf extracts, grape seed extracts and 3% sodium hypochlorite against E. feacalis - An in vitro study.

Background: E. faecalis is the predominant micro-organism recovered from root canal of the teeth where previous endodontic treatment has failed. Thorough debridement and complete elimination of micro-organisms are objectives of an effective endodontic treatment.

Evaluation of the Amount of Debris extruded apically by using Conv-entional Syringe, Endovac and Ultrasonic Irrigation Technique: An In Vitro Study.

Background: To compare the amount of debris extruded apically by using conventional syringe, Endovac & Ultrasonic irrigation.

Materials & Methods: Thirty freshly extracted mandibular premolars were selected, working length was determined and mounted in a debris and collection apparatus. The canals were prepared.