Background: Measurements of diagonal distances of teeth were one of the major tools in assessment of sexual dimorphism in various populations. Various research and studies were aimed at achieving the perfect results in forensic context. Aims: The study was aimed to assess the degree of sexual dimorphism in permanent mandibular molar of Iranians using diagonal diameters. Objectives: To evaluate the applicability of diagonal measurements in sex determination. Materials and Methods:The study sample consisted of 30 Iranians students of age group between 15 to 25 years that included 15 male samples and 15 female samples ie of 1: 1 ratio. Diagonal distances on the occlusal surfaces and diagonal dimensions on the facial surface were considered. Calculations were done using manual Vernier calliper recorded dimensions were larger in males than in females. Results:The mean values and standard deviation of all recorded dimensions were larger in males than in females. Conclusion of Study:The results showed that occlusal and facial diagonal diameters of molars can be used for sex determination as they present a high degree of sexual dimorphism.

Neurofibromas (NF) are seen either as a solitary lesion or as part of the generalized syndrome of NF (NF-1, also known as von Recklinghausen disease of the skin). In plexiform neurofibroma (PN), there is a proliferation of Schwann cells from the inner aspect of the nerve sheath, thereby resulting in an irregularly thickened, distorted, and tortuous structure. Oral involvement by a solitary and peripheral PN in patients with no other signs of NF is rarely seen. It is reported that only 4-7% of patients affected by NF display oral manifestations. A solitary PN in a patient with no other symptoms is a diagnostic challenge, more so when the location of the lesion is one of the rarest sites.