Diş hekimleri, klinikte diş tedavileri sırasında dişin anatomik yapısıyla ilgili çeşitli varyasyonlarla karşılaşabilirler. Süpernümerer ; en sık görülen varyasyonlardan biri olmasına rağmen, azı dişlerinde fazla kök bulunması varyasyonunun ilginç bir örneğidir. Mandibular dişleri genellikle 2 ayrı köke( mesial ve distal) sahiptir. Çok nadiren ilave üçüncü (süpernümerer kök) görülür.Ana distal k...

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...

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...

Aim Cyst-like lesions in the mandible rarely develop into malignancies, and reported incidence is between 0.3% 2%. The present study describes a rare case of primary intraosseous squamous cell carcinoma arising from an odontogenic cyst. Materials Methods An 80-year-old male was referred to Trieste University Maggiore Hospital (Trieste, Italy), with acute pain left retromolar area. initial exami...

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...