Evaluation of microtensile bond strength and marginal adaptation of fiber-reinforced composites.

Background: Long-term durability of a restoration relies on the marginal integrity and its ability to withstand the occlusal forces. Fiber-reinforced composites (FRCs) exhibited superior properties in terms of fracture toughness, flexural strength, and wear resistance.

Aim: The aim of this study was to assess and compare marginal adaptation and microtensile bond strength (µTBS) of posterior FRCs comparing with a condensable composite.

Effect of ultrasonic and Er,Cr:YSGG laser-activated irrigation protocol on dual-species root canal biofilm removal: An study.

Aim: The aim of the study was to investigate the disinfecting efficacy of a standardized irrigating solution activated by ultrasonics or laser irradiation on mature dual-species biofilms at different root levels .

Materials And Methods: Conventional access cavity preparations were done on 160 single-rooted mandibular premolar teeth with single canals. Freshly extracted oral microbial strains of , , , and after biochemical confirmation were used to generate two discrete dual-species microbial inoculums.

Influence of access cavity design on root canal instrumentation efficacy in molars - An study.

Background: Several designs of access cavity have been evolved in the recent past with the concept of minimal tooth tissue removal which would improve the root canal treated teeth fracture resistance.

Aim: To investigate the effect of conservative design access cavity during the instrumentation of maxillary molar root canals.

Materials And Methods: Eighty noncarious maxillary molars were assigned to the traditional and conservative access groups ( = 40 each).

An micro-CT assessment of bioactive restorative materials interfacial adaptation to dentin.

Background: The background of this study was to improve the longevity of a restoration and optimal adaptation of restorative material to the prepared cavity walls is crucial. The study aimed to evaluate the interfacial adaptation of Activa, Micron, and Predicta bulk bioactive restorative materials to coronal dentin using micro-computed tomography (CT) analysis.

Materials And Methods: In this micro-CT assessment study, Class II mesio- and disto-occlusal cavities were prepared on 60 extracted human mandibular molar teeth.

An In-vitro Fracture Strength Assessment of Endodontically Treated Teeth with Different Root-End Materials.

Objective: To assess and compare the fracture strength of endodontically treated teeth when the retrograde preparations were restored either with Biodentine or Endosequence BC RRM Fast set putty or Geristore.

Methods: One hundred and twenty human mandibular premolars were used and allocated randomly into five groups (n=24 each). Following conventional root canal treatment, and apical root resection, retrograde cavities of 3 mm were prepared using ultrasonic tips.

Influence of obturating techniques on root dentin crack propagation: A micro-computed tomography assessment.

Aim: The aim is to assess and compare the microcrack formation in radicular dentin after obturating the root canals with cold lateral condensation (CLC), warm vertical condensation (WVC), and injectable gutta-percha (IGP) techniques using micro-computed tomography (CT).

Materials And Methods: Human extracted mandibular premolar teeth ( = 60) were haphazardly assigned based on the obturation technique into three experimental groups ( = 20 each). Root canals are cleaned and shaped with M Two rotary files and 3% sodium hypochlorite irrigant.

Influence of obturation technique on penetration depth and adaptation of a bioceramic root canal sealer.

Aim: Evaluation of the impact of three different obturation techniques on the penetration depth and adaptation of a bioceramic root canal sealer(BioRoot RCS) to root dentin using scanning electron microscope and confocal laser scanning microscope.

Materials And Methods: Recently extracted ninety mandibular premolar teeth of similar dimensions (±0.2 mm) with single canals and straight roots were segregated into three experimental groups ( = 30 each) based on the method of obturation used, i.

Synergistic Effect of Arginine on Remineralization Potential of Fluoride Varnish and Nanohydroxyapatite on Artificial Caries Lesions: An Study.

Aim And Objective: To evaluate the synergistic effect of arginine on the remineralizing potential of fluoride varnish and nanohydroxyapatite.

Materials And Methods: A total of 100 teeth were taken; of them, 50 teeth were allotted for microhardness test and 50 teeth for scanning-electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDX) analysis. Fifty teeth used for hardness testing were sectioned to obtain 100 samples, and the baseline hardness values were measured.

Efficacy of hydroxyapatite and silica nanoparticles on erosive lesions remineralization.

Aim: The aim is to assess and compare the mineral gain and penetration depth of hydroxyapatite and silica nanoparticle infiltrates into artificially created erosive lesions of enamel and dentin.

Materials And Methods: Sixty extracted human molars were sectioned to obtain enamel and dentin samples ( = 60 each). They were demineralized using citric and formic acid, respectively, to create erosive lesions on enamel and dentin surfaces.

Effect of different obturating techniques and sealers on the removal of filling materials during endodontic retreatment.

Background: Adequate removal of previous root filling materials is an important objective during endodontic retreatment.

Aim: This study was aimed to evaluate the influence of obturation quality and sealer type on the removal of root filling materials during endodontic retreatment using micro-computed tomography (μ-CT).

Materials And Methods: Ninety extracted mandibular premolars were randomly assigned to two groups ( = 45) based on the type of sealer (AH Plus and BioRoot RCS) and three sub-groups based on the obturating technique used, i.

Microtensile Bond Strength Evaluation of Composite Resin to Discolored Dentin After Amalgam Removal.

Background To obtain prolonged clinical success with composite restorations, better bonding of resin to the tooth substrate is crucial. Aim The study was aimed to evaluate the microtensile bond strength (µTBS) of bulk-fill composite resin restorations when bonded to a cavity previously restored with amalgam, comparing with that of freshly prepared dentin. Materials and method Mesio-occlusal cavity preparations were done on 80 extracted human mandibular molars with a buccolingual width of 4 mm and a 1.

Effect of pretreatment medication on postendodontic pain: A double-blind, placebo-controlled study.

Background: Posttreatment endodontic pain has been reported in 25%-40% of all endodontic patients. Effective management of endodontic pain represents a continuing challenge.

Aim: To evaluate and compare the efficacy of preoperative single dose of nonsteroidal anti-inflammatory drug, piroxicam (20 mg), with two types of corticosteroid drugs - dexamethasone (4 mg) or deflazacort (30 mg) - for the prevention and control of postendodontic pain.

Effect of intratooth location and thermomechanical cycling on microtensile bond strength of bulk-fill composite resin.

Context: The initial bond strength and potential durability of an adhesive restoration are significantly affected by regional variations in dentin composition.

Aim: The aim of this study is to evaluate the influence of dentin location and thermomechanical cyclic loading on microtensile bond strength of bulk-fill composite resin to coronal dentin.

Materials And Methods: Disto-occlusal cavity preparations were done on 60 extracted human mandibular molars with pulpal floor depth of 1.

Micro-computed tomographic evaluation of dentinal defects after root canal preparation with hyflex edm and vortex blue rotary systems.

Background: To evaluate the incidence of dentinal microcracks formation after root canal shaping procedures with HyFlex EDM and Vortex Blue rotary systems comparing with that of hand instrumentation using micro-computed tomography.

Material And Methods: Mandibular first molar teeth (n=60) having 50 to 200mesial root curvature were scanned using high resolution micro-CT imaging before root canal preparation to identify the presence of dentinal defects. Post-instrumentation cross-sectional images were taken and increased number and type of root defects were assessed and recorded.

Clinical evaluation of color change and tooth sensitivity with in-office and home bleaching treatments.

Background: Among the number of vital bleaching techniques currently available to the clinicians, home bleaching and in-office bleaching are widely used in dental practice.

Aim And Objectives: The aim of this in vivo study was to compare the clinical performance, durability, and related tooth sensitivity with two vital bleaching procedures (in-office and at-home bleaching), in a split-mouth design.

Patients And Methods: Thirty adult participants having teeth shade mean of A2 or darker were selected for the study.

Interfacial adaptation and penetration depth of bioceramic endodontic sealers.

Background: Sealers play an important role in the success of root canal treatment. The efficacy of root canal sealer is enhanced by its tubular penetration and adaptation properties.

Aim: The aim of this study is to evaluate the interfacial adaptation and penetration depth of Bioroot RCS and MTA Plus sealers to root dentin.

Endodontic management of contralateral mandibular first molars with six root canals.

The knowledge of variations in root canal morphology is essential for a successful endodontic outcome. Contralateral mandibular molar with six root canals is a rare entity. Root canal treatment of mandibular molars with aberrant canal configuration can be diagnostically and technically challenging.

Microtensile bond strength of bulk-fill restorative composites to dentin.

Background: To facilitate the easier placement of direct resin composite in deeper cavities, bulk fill composites have been introduced. The Mechanical stability of fillings in stress bearing areas restored with bulk-fill resin composites is still open to question, since long term clinical studies are not available so far. Thus, the objective of the study was to evaluate and compare the microtensile bond strength of three bulk-fill restorative composites with a nanohybrid composite.

Effect of obturating materials on fracture resistance of simulated immature teeth.

Aim: The aim of this study was to evaluate the fracture resistance of simulated immature teeth, when the root canals were completely filled either with mineral trioxide aggregate (MTA) or Biodentine, comparing with that of roots filled with apexification procedure.

Materials And Methods: Sixty mandibular premolar teeth with single, straight canals decoronated at cementoenamel junction were divided into five groups ( = 12 each). Group 1 samples served as negative control and remaining four groups root samples were shaped and cleaned using ProTaper rotary files.

Microhardness and Penetration of Artificial White Spot Lesions Treated with Resin or Colloidal Silica Infiltration.

Introduction: Infiltration of early enamel lesions by materials having remineralizing capacity seems to improve aesthetics and arrests caries progression.

Aim: To evaluate and compare the surface microhardness and penetration depth of a low viscosity resin and colloidal silica nanoparticle infiltrates into artificially created white spot lesions.

Materials And Methods: Forty extracted human central incisors were embedded in acrylic resin blocks exposing the labial surfaces of the crowns.

Autotransplantation of mandibular third molar: a case report.

Autogenous transplantation is a feasible, fast, and economical option for the treatment of nonsalvageable teeth when a suitable donor tooth is available. This paper presents successful autotransplantation of a mature mandibular left third molar (38) without anatomical variances is used to replace a mandibular left second molar (37). The mandibular second molar was nonrestorable due to extensive root caries and resorption of distal root.