A non-classic form of McCune Albright syndrome with different presentations and review of the literatures.

Background: McCune Albright syndrome (MAS) is a rare heterogeneous clinical syndrome without any predilection for ethnic group. Classic form includes triad of fibrous dysplasia, café au late spots and autonomous hyper function of one or more endocrine pathways.

Case Report: We report the case of an 18-year old girl with non-classic form of MAS .

A Highlighted Case for Emphasizing on Clinical Diagnosis for Rare Syndrome in Third World.

Premature tooth loss is a disastrous situation that affects deciduous or permanent teeth era with different causes. It may be attributed to some disorders like Papillon-Lefevre syndrome or coffin-lowry syndrome but because of ambiguous nature, precise diagnosis is not easily possible. Moreover, it has very low incidence and defines by few and limited case series, with vague characters to some extent, confusion in detecting the right diagnosis is a common possibility.

Gender difference and root canal morphology in mandibular premolars: A cone-beam computed tomography study in an Iranian population.

Background: Mandibular premolars are of the most difficult teeth to treat endodontically.

Aims: To compare the root canal morphology of mandibular premolars between two genders in an Iranian population.

Settings And Design: Totally, 230 cone-beam computed tomography images of the mandibles belonged to 115 males and 115 females were evaluated in the three spatial planes.

Impact of root canal preparation size and taper on coronal-apical micro-leakage using glucose penetration method.

Objectives: The purpose of this in vitro study was to assess the effect of root canal preparation size and taper on the amounts of glucose penetration.

Material And Methods: For conducting this experimental study, eighty mandibular premolars with single straight canals were divided randomly into 2 experimental groups of 30 samples each and 2 control groups. Using K-files and the balance force technique, canals in group 1 were prepared apically to size 25 and coronally to size 2 Peesoreamer.

The effect of retreatment procedure on the pH changes at the surface of root dentin using two different calcium hydroxide pastes.

Aim: To compare pH changes at the cervical, middle and apical surfaces of root dentin in retreated and non- retreated teeth, after canal obturation with two different calcium hydroxide pastes.

Materials And Methods: After instrumentation of 55 extracted teeth, three cavities with 0.75 mm depth and 1.