Analysis of Force and Torque with XP Shaper and OneCurve Systems During Shaping of Narrow Canals.

Objective: The purpose of this laboratory-based study was to compare the shaping forces and torques developed by the XP Shaper (FKG Dentaire SA, La Chaux-de-fonds, Switzerland) and OneCurve (Micro-Mega, Besancon, France) systems during shaping of narrow canals.

Methods: Mandibular premolars with a single canal were divided equally into two groups; XP Shaper and OneCurve (n=16 each). In both groups, the canals were shaped with XP Shaper file (30/01) or OneCurve file (25/O6) that was inserted three times until it reached the canal length.

Marginal adaptation of mineral trioxide aggregate (MTA) to root dentin surface with orthograde/retrograde application techniques: A microcomputed tomographic analysis.

Background: Achieving a good apical seal for root canals is known to be associated with good mineral trioxide aggregate (MTA) adaptation to dentin.

Aims: This study aims to compare the marginal adaptation of MTA with root dentin between orthograde and retrograde application techniques using microcomputed tomography (micro-CT) analysis.

Settings And Design: Fifty-two single-rooted human teeth were divided into four equal groups: (Group 1) Retrograde MTA (RMTA), (Group 2) Orthograde MTA (OMTA), (Group 3) Etched RMTA (ERMTA), and (Group 4) Etched OMTA (EOMTA).

A new classification of endodontic-periodontal lesions.

The interrelationship between periodontal and endodontic disease has always aroused confusion, queries, and controversy. Differentiating between a periodontal and an endodontic problem can be difficult. A symptomatic tooth may have pain of periodontal and/or pulpal origin.

Efficacy of the enamel matrix derivative in direct pulp capping procedures: a systematic review.

The aim was to review the efficacy of the enamel matrix derivative (EMD) in direct pulp capping (DPC) procedures. Databases were explored using the following keywords: 'dental', 'dentine', 'enamel matrix derivative', 'pulp capping' and 'treatment'. The inclusion criteria were: (i) original studies; (ii) human and animal studies; (iii) reference list of potentially relevant original and review articles; (iv) intervention: effect of EMD on pulp-capping procedures; and (v) articles published only in English.

Incidence of canal systems in the mesio-buccal roots of maxillary first and second molars in Saudi Arabian population.

The aim of this prospective study was to determine the number of canals treated in the mesio-buccal roots of the maxillary first and second molars teeth of a Saudi Arabian population during a 1-year period in a postgraduate endodontic program. The attending endodontic faculty member supervising the case verified the number of canals in the teeth clinically and radiographically. In total, 308 maxillary first molars and 162 maxillary second molars, of which 158 (51.

Effect of acid etching on marginal adaptation of mineral trioxide aggregate to apical dentin: microcomputed tomography and scanning electron microscopy analysis.

The present investigation assessed the effect of acid etching on marginal adaptation of white- and gray-colored mineral trioxide aggregate (MTA) to apical dentin using microcomputed tomography (micro-CT) and scanning electron microscopy (SEM). Sixty-four extracted single-rooted human maxillary teeth were used. Following root-end resection and apical preparation, the teeth were equally divided into four groups according to the following root end filling materials: (i) white-colored MTA (WMTA), (ii) etched WMTA (EWMTA), (iii) gray-colored MTA (GMTA) and (iv) etched GMTA (EGMTA).

A hybrid approach to direct pulp capping by using emdogain with a capping material.

Introduction: This study evaluated the formation of reparative hard tissues in baboon pulps after Emdogain (EMD) application in conjunction with 3 pulp-capping materials.

Methods: Thirty-two premolars in four 3-year-old baboons were randomly assigned to 1 of 3 pulp-capping materials. A split-mouth design and intra-animal side randomization were applied to 3 experimental groups (calcium hydroxide, ProRoot White mineral trioxide aggregate, white Portland cement) and the control group (no pulp-capping material).

Histomorphometric and micro-computed tomography analysis of pulpal response to three different pulp capping materials.

Introduction: This study evaluated the responses of baboon dental pulps after the application of 3 pulp capping materials.

Methods: Thirty premolar teeth in four 3-year old baboons were randomly assigned to 1 of 3 pulp capping materials. A split-mouth design was used, and intra-animal side randomization was applied to the 3 experimental groups (calcium hydroxide, ProRoot white mineral trioxide aggregate, white Portland cement) and the control group (no pulp capping material).

A survey of root canal treatment of molar teeth by general dental practitioners in private practice in Saudi Arabia.

The purpose of this study was to evaluate the practice and depth of knowledge of root canal treatment by general dental practitioners working in private dental centers in different cities within the Kingdom of Saudi Arabia. A questionnaire was distributed to 400 general dental practitioners. Completed questionnaires were analyzed in term of simple summary statistics.