The research report is used as a simple and precise method/ procedure of measuring and determining the convergence angle of final constructed dies. A random samples selection of 30 dies from School of Dentistry Taibah University students was taken. All the 30 preparations were accomplished by 3rd, 4th and 5thyear dental student under standard and regular clinic situations and at the lab. A variety of 4 to 10 degrees of convergence is recommended as optimal. The average taper of groups in this study, measured were substantially greater or more than those recommended. Many of the recently published research on the subject agree with outcomes and the values obtained in our analysis.

The incidence of oral squamous cell carcinoma remains high in India due to the social and cultural habit of tobacco, it accounts for about 5%of total cancer of the body. Despite evolution in management,the overall survival of patients has not been improved significantly during the past 20 years. Several clinicopathological parameters have been implicated in the prognosis, recurrence and survival, following oral cancer. This retrospective study aims at the study of clinicopathological parameters including regional lymph nodes and distant metastasis and its correlation with recurrence and death rates in patients with oral squamous cell carcinoma. In this retrospective study data collected from the registry of cancer ward, Victoria hospital and Government dental college, Bangalore from 2007-2014(8 years) in total, 283 patients with oral squamous cell carcinoma were included. The clinical staging and histopathological reports were analysed and chest X ray, MRI was used to assess the distant metastasis and these findings were correlated with recurrence and death rates of the patients.Statistical analysis was carried out using chi square test. Among 283 patients 159 were males (56.2%) and 124 were females (43.8%). Most of the identified squamous cell carcinomas were T4 (42%) and N2 (40.6%). Recurrence was identified in 40 patients, 85(30%) had regional nodal metastasis and 9 had distant metastasis, and 40 patients died out of 283.Squamous cell carcinoma of the oral cavity has a poor overall prognosis with a high tendency to recur at the primary site and extend to involve the cervical lymph nodes.

Different forms of allogenous and autogenous bone grafts have been studied for their potential use as bone substitutes. Although autogenous bone grafts is a treatment alternative for bone regeneration and repair they have several disadvantages like limitation of graft volume available, donor site morbidity and is technique sensitive. Thus, use of other materials like processed bovine dentine and Bone Xenograft (Bio-Oss) presents an alternative and a relatively simple technique for bone regeneration and repair. The main aim of this study was to determine the role of Processed Bovine Dentine and Bone Xenograft (Bio-Oss) in bone regeneration and repair and to compare these two groups histlogically. A total of ten healthy adult Albino male rats, aged 4 weeks weighing between 150 – 200gms were used in the study. Three round surgical defects of approximately 1mm in diameter were drilled in both the right and left femur. Processed bovine dentine was placed in the right femur and Bio-Oss was placed in the left femur. Group I: - Processed Bovine Dentine.Group II: - Bone Xenograft (Bio-Oss). Bio-Oss graft displayed osteoconductive properties and the best bone formation with complete resorption and organization of the grafted materials. Based on histological findings, though Processed Bovine dentine displayed osteoconductive properties its effect on bone formation was slower compared to that of Bio-Oss. The results of the present study supports that the use of Processed Bovine Dentine seems to be an alternative bone substitute, although less effective than Bone Xenograft (Bio-Oss).

Odontomas are pathological entities of odontogenic origin. They are mostly prevelant with impacted permanent teeth causing delayed shedding of deciduous teeth. They are mostly asymptomatic, but on association with cystic formation can cause discomfort to patient and esthetic concerns. This paper is a short reporting of an incidental finding of odontoma associated with impacted mandibular canine.