Abstract Aim To assess the impact of conservative endodontic access cavities (CEC) and truss (TAC) during root canal treatment performed on mandibular molars in terms of: ability to shape fill canals, microbial reduction cleaning pulp chamber. In addition, fracture resistance teeth after coronal restoration was assessed. Traditional (TEC) were used as a reference technique for comparison. Methodology Thirty extracted intact scanned microcomputed tomography device (micro‐CT), matched based...

Abstract Aim To evaluate the influence of ultraconservative endodontic access cavities (UEC) and use instruments with various tapers (.03 or .05) tip diameters (25 40) on ability to shape canals in mandibular molars their fracture resistance comparison traditional (TEC). Methodology Thirty‐two intact extracted were scanned a micro‐computed tomography device, matched based similar anatomical features assigned UEC TEC groups subgroups according mechanical canal preparation Bassi Logic™ rotary...

Abstract Aim To evaluate the influence of ultraconservative access cavities (UltraAC) on canal shaping and filling ability load capacity mandibular molars after root preparation with XP‐endo Shaper (XP) or Reciproc (RC), under simulated clinical conditions. Traditional (TradAC) were used for comparison. Methodology Forty extracted scanned by micro–computed tomographic and, based similar anatomical features, divided into four groups ( n = 10), according to type cavity instrumentation...

Abstract Aim To evaluate the use of a reduced taper endodontic instrument system (Bassi Logic™ .03 taper) and expandable heat‐treated (XP‐endo Shaper) on ability to shape canals in mandibular molars, by means microcomputed tomography (micro‐CT) analysis. The Reciproc was used as reference for comparison. Methodology Twenty‐four molars were scanned micro‐CT, matched based similar anatomical features sorted into three groups ( n = 8 per group), according root canal preparation system: Bassi...

Abstract Aim To evaluate the influence of pH variation on solubility and water sorption a premixed calcium silicate‐based root canal sealer (EndoSequence BC Sealer) compared to gold standard based epoxy resin (AH Plus Jet) after immersion in distilled phosphate‐buffered saline (PBS). Methodology Solubility were evaluated or PBS at several pHs (5, 7 12) values calculated as percentages original mass 24 h, 30 days immersion. The crystalline structures present sealers surface precipitates...

Abstract Aim To evaluate the presence of women on editorial boards and as authors in leading global endodontics journals from 2018 to 2023. Methodology The selection was based impact factor Journal Citation Reports (JCR) CiteScore 2022, with criteria JCR above 1 1.5. Editorial board members were categorized editor‐in‐chief associate editor. Authorship into first, last, corresponding author roles. names extracted an Excel spreadsheet, gender analysis conducted using platforms Genderize,...

Abstract Aim To evaluate the correlation between volume of dental hard tissues removed and fracture resistance mandibular molar teeth with ultraconservative (UltraAC) or traditional (TradAC) access cavity preparations. Methodology Sixty recently extracted intact first molars were scanned in a microcomputed tomographic (micro‐CT) device, anatomically matched assigned at random to 2 groups ( n = 30), according type: UltraAC TradAC. After preparation, mesial distal canals prepared using...

This study aimed to evaluate the efficacy of supplementary methods remove remaining root filling material from canals. Twenty mandibular single-rooted teeth were instrumented with Reciproc 25/0.08 and filled gutta-percha AH-Plus sealer, followed by a micro-CT scanning. The retreatment procedures performed, samples rescanned divided into two groups (n = 10) according method: XP-endo Finisher R Clearsonic tip. volume was quantified. Data analysed statistically (P < 0.05). amount removed after...

This study assessed the pulp tissue dissolution from isthmus of a two-rooted maxillary premolar using different final irrigation protocols. After root canal preparation, surface tooth was reduced to an extent that could be observed, and 1 mg introduced into which covered with glass slide. Following six groups were tested: syringe needle; subsonic activation; sonic ultrasonic heating followed by activation. Before after each experiment photograph taken at 30× register area tissue. Statistical...

The aim of this study was to evaluate the shaping ability TruShape and Reciproc Blue systems apical extrusion debris after root canal instrumentation. ProTaper Universal system used as a reference for comparison.Thirty-three mandibular premolars with single were scanned using micro-computed tomography matched into 3 groups (n = 11) according instrumentation system: TruShape, Universal. teeth accessed mounted in an apparatus agarose gel, which simulated resistance provided by periapical...

To compare the effects of Cervical Access Cavity (CervAC) and Traditional (TradAC) on root canal preparation, filling, fracture resistance in mandibular incisors.

To evaluate the fracture incidence of Reciproc R25 instruments (VDW) used during non-surgical root canal retreatments performed by students in a postgraduate endodontic program.From analysis clinical record cards and periapical radiographs using R25, total 1,016 teeth (2,544 canals) were selected. The discarded after single use. general instrument fractures its frequency was analyzed considering group thirds where occurred. Statistical χ2 test (p < 0.01).Seven separated procedures....

This study evaluated unprepared canal areas, volume of dentine removal, and thickness after the progressive enlargement buccal canals 22 maxillary molars, with without MB2, using instruments same tip size (0.25 mm) but 4 different tapers (0.03, 0.05, 0.06 0.08 v). Micro-CT scans were performed each instrument. Data compared a general linear mixed model post hoc comparisons Kenward-Roger for Wald F tests (α = 5%). After treatment step, it was observed an increase in percentage removed...

A root-end filling material is required to fill the cavity without gaps or voids, prevent root canal reinfection and provide periapical healing. Thus, this study evaluated volume of marginal voids three materials using microcomputed tomography (micro-CT). Thirty maxillary incisors were prepared filled with gutta-percha endodontic sealer. The specimens scanned micro-CT distributed into groups (n = 10): White MTA, MTA Repair HP, Bio-C Repair. tips resected at 90° longitudinal axis (3 mm depth)...

This study evaluated the penetration of irrigant subject to activation after performing retro-preparation in endodontic microsurgery. Forty mandibular premolars were prepared and filled. Subsequently, 1 mm from root apex was cut using a multi-blade bur performed. In group 1, retro-cavity cleaned with 2 mL saline then 5.25% NaOCl gel mixed 0.1% Rhodamine B. 2, saline, 17% EDTA activated ultrasonically for 30 s B s. After 7 days, roots at 1mm slices confocal laser scanning microscopy. The...

The aim of this study was to evaluate the effect glycolic acid (GA) and EDTA on dentin mechanical properties. For cohesive strength, flexural strength fracture tests, hourglass root dentin, sticks roots standardised 1 mm thickness were used respectively. ANOVA Tukey tests for statistical analysis (P < 0.05). results showed that GA 17% reduced values when compared distilled water (control; P = 0.0022 0.0016 respectively), whereas 10% group similar those control 0.093). No statistically...

To evaluate the influence of traditional and conservative access cavity preparations on remaining dentine thickness in coronal third mesial canals extracted mandibular molars prepared with reciprocating instruments using micro-computed tomography as analytical tool.Seventy were scanned at a pixel size 19 μm. From this initial sample, 20 teeth selected, pair-matched distributed into two groups (n = 10) according to preparation: (TradAC) or (ConsAC). The root sequentially enlarged Reciproc...

This study assessed the influence of pH variation on volumetric change EndoSequence BC Sealer compared to AH Plus Jet. Eighteen single-rooted teeth were uniformly prepared and filled with one sealers. After 24-h storing, samples scanned in a micro-CT device. Then, roots immersed 20 ml phosphate-buffered saline (PBS) 5, 7 or 12 at 37°C for 30 days rescanned. Statistical analysis was performed using Shapiro-Wilk's test, one-way ANOVA Tukey's Student's t-tests (p < 0.05). Differences between...