most mandibular second molars have one and two canals in distal and mesial roots, respectively. this report represents four cases of mandibular second molars with a single mesial and two distal root canals with two different canal configurations. after access cavity preparation, two teeth had one distal and two mesial orifices, whereas in the two other teeth one mesial and two distal orifices w...

The study investigates the gender predictability of permanent maxillary first molar teeth. Mesio distal width of 30 permanent maxillary first molar teeth from casts of 15 male and 15 female patients between the age group of 1725 were measured. Results showed that permanent maxillary first molar tooth exhibited sexual dimorphism but accuracy of gender predictability was only moderate.

Ectopically erupted tooth is a rare disease, indicating that a tooth erupts into regions other than the oral cavity. We present a case of an ectopic maxillary third molar tooth in the external acoustic meatus, and discuss the diagnosis and treatment of this entity.

During the formation of repetitive ectodermally derived organs such as mammary glands, lateral line and teeth, the tissue primordium iteratively initiates new structures. In the case of successional molar development, new teeth appear sequentially in the posterior region of the jaw from Sox2 cells in association with the posterior aspect of a pre-existing tooth. The sequence of molar developmen...

BACKGROUND The study will report on the prevalence, clinical presentation, diagnosis, and management of non-third molar related pericoronitis seen in children below the age of 15 years who report at the Pediatric Dental Clinic, Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife over a 4½ year period. MATERIALS AND METHODS This is a prospective study of cases of pericoronitis affec...

how to cite this article: barzegar m, malaki m, sadegi-hokmabadi e. joubert syndrome with variable features: presentation of two cases. iran j child neurol. 2013  spring;7(2):43-46.   abstract joubert syndrome is a very rare disorder characterized by respiratory irregularities, nystagmus, hypotonia, and global developmental delay with abnormalities of cerebellum. we present two cases of this sy...

During the formation of repetitive ectodermally derived organs such as mammary glands, lateral line and teeth, the tissue primordium iteratively initiates new structures. In the case of successional molar development, new teeth appear sequentially in the posterior region of the jaw from Sox2 cells in association with the posterior aspect of a pre-existing tooth. The sequence of molar developmen...

JADA 142(6) http://jada.ada.org June 2011 651 A45-year-old woman visited her general dentist because of severe pain in the right mandibular posterior region. Her first molar contained a large mesialocclusal-distal amalgam restoration, and the patient experienced symptoms consistent with irreversible pulpitis. In addition, radiographs showed changes associated with the mesial root. The second mo...