Background. Further studies on the adhesion properties of MTA-based materials seem necessary due to their growing use in endodontic treatment. This research aimed to assess the effect of retreatment on the bond strength of MTA-based (MTA Fillapex) and epoxy resin-based (AH Plus) sealers. Methods. ProTaper rotary files were applied to prepare the root canals of 80 human mandibular premolars. The...

Coronal leakage is an important factor affecting the outcome of endodontic therapy. This study evaluated the microbial leakage (ML) and the apical inflammatory response (AIR) in dog's teeth after root canal filling with three endodontic sealers, post preparation and exposure to the oral environment, testing the hypothesis that there is a positive correlation between these two histological param...

Background: One of the important materials needed for root treatment is sealers. They fill space between gutta and canal walls create a suitable seal to prevent colonization oral microorganisms in peri-apical tissues inside space. Aim: The aim this study was prepare test cell biocompatibility new polycaprolactone-based endodontics sealer comparison AH plus against dental pulp stem cells. Method...

Aims: The study aimed to evaluate the effect of smear layer on push-out bond strength silicone-based root canal sealers. Materials and methods: Sixty extracted, single-rooted, sound human mandibular first premolar teeth were selected for this study. Crown portion each tooth was decoronated level cement-enamel junction standardize length 16 mm. working measured by subtracting 1mm from visually d...

Aim: This study was designed to investigate the effect of different final irrigation protocols on apical sealing ability bioceramic and epoxy resin-based sealers.
 Materials methods: Thirty human single-rooted mandibular premolars were instrumented using ProTaper Next rotary files. Teeth randomly divided into three groups according regimen; Group I: 5 ml 0.2% CNPs/3 min, II: 2.5 CNPs/1.5 m...

introduction: this study aimed to compare the cytotoxicity of mta fillapex, ah-26 and apatite root canal sealers at different times after mixing. methods and materials: in this in vitro study, mta fillapex, ah-26 and apatite root canal sealer were spilled uniformly by 40 µm mesh in a 96-well plate. then, human fetal foreskin fibroblast cell line (hfff2) were added to each sealer cell culture me...

Since there are no data in the literature regarding comparison of marginal adaptation hydraulic sealers when used with a single-cone technique or through thermomechanical compaction, this study aimed to evaluate behavior four different endodontic two above-mentioned obturation techniques by evaluating gap existing between materials and dentinal walls scanning electron microscopy. Given objectiv...

BACKGROUND Smear layer is a negative factor which prevents adhesion of the filling material to the dentinal walls. Recent advances in dental research have incorporated lasers as a potential adjunct in root canal treatment by removing the smear layer before filling the root canal system, enhancing the adhesion of sealers to dentin and improving the sealing ability. AIM To evaluate the microten...