INTRODUCTION The purpose of this retrospective study was to determine the anesthetic success of the inferior alveolar nerve (IAN) block, and supplemental articaine buccal infiltration after a failed IAN block, in first and second molars and premolars in patients presenting with symptomatic irreversible pulpitis. METHODS As part of 6 studies, 375 emergency patients presenting with symptomatic ...

AIMS Prediction of the mesiodistal crown width of unerupted canines and premolars is an important aspect of mixed dentition analysis. The accuracy of Tanaka-Johnston equations, the most commonly method, is questionable when it is applied to different ethnic groups. In this study, we aimed to develop a new regression equation for this prediction in an Iranian population. MATERIALS AND METHODS ...

The aim of the present roentgenographic in vitro study was to determine the initial straight length from the cemento-enamel junction (CEJ) to the appearance of a root canal curvature in human mandibular premolars. A total number of 282 mandibular premolars were examined. Exclusion criteria comprised root caries, extensive restorations and endodontically treated teeth. The teeth were fixed and d...

Introduction. Mandibular premolars have been reported with complex anatomical aberrations, making them one of the most difficult teeth to manage endodontically. Methodology. An exhaustive search was undertaken to identify associated anatomic studies of mandibular premolars through MEDLINE/PubMed database using keywords, and a systematic review of the relevant articles was performed. Chi-square ...

Background and aim: The mental-incisive nerve block can be used where lower premolars and anterior teeth require treatment. The aim of this study is to compare tow methods ofmental-incisive nerve block for extraction of the lower premolars and anterior teeth. Methods and materials: This randomized double blind split-mouth clinical trial study was performed on patients requiring extraction of lo...

Premolars rank third in frequency after third molars and maxillary canines in impacted or unerupted teeth. Failure to detect and analyze the problem may lead to unnecessary space loss, crowding, or collapse of the dental arch. A diagnostic scheme is presented to facilitate diagnosing and treating unerupted premolars. Important observations include: Diagnosing congenitally missing permanent teet...

Taurodontism is a tooth anomaly characterized by an enlarged pulp chamber and an apical displacement of the pulpal floor. It ́s more prevalent in molar teeth, with few cases reported in premolars. Objective: To describe bilateral taurodontism in lower premolars associated with supernumerary teeth in a young patient. Case report: 10-year old female patient evaluated in a routine appointment. Clin...

Background: The position of the mental foramen is critical for surgery and local anesthesia. Objectives: This study was conducted to assess the position of the mental foramen and its relationship to age in a selected Iranian population. Materials and Methods: This was a cross-sectional descriptive study. Three hundred panoramic radiographs were assessed. Three variables were assessed for each r...

Objectives: To investigate the root canal morphology of permanent mandibular premolars using cone-beam computed tomography (CBCT) in selected population and to review previous studies regarding other Turkish subpopulations. Materials Methods: The sample for this retrospective study included 1048 CBCT images 672 females 376 males representing 1613 first 1461 second premolars. Pubmed Google Schol...