Beta tricalcium phosphate and dental implant

The purpose of this study is to evaluate histologically the role of Cerasorb bone graft substitute material [beta-tricalcium phosphate] as an augmentation method for filling bony defect adjacent to the dental implant, and to evaluate the state of bone osseointegration in comparison to Frios Algipore bone graft substitute material, currently used. Fifteen New Zealand white male rabbits of 4 - 6 months in age and of 2-2.5 Kg weight were used in the study. The animals were divided into three groups, each group consist of five animals with insertion of dental implant in the right femur with creation a traumatic bone defect 3x3 mm in diameter around the coronal part of dental implant The animals were left for healing without augmentation as for the control group and which augmented with Cerasorb and Algipore bone substitute for the other two groups. Animals were scarified at 2, 4, and 12 weeks postoperatively. The histological findings shows that Cerasorb bone substitute resulted in faster resorption and early initiation of the newly bone formation. The bone become completely matured during 12[th] weeks with successful bone osseointegration and direct contact to the implant surface, in comparison to the Algipore bone substitute material that show delayed resorption and longer time for new bone formation. There was an intervening layer between the bone and Algipore bone grafted material. The study concludes that the use of Cerasorb bone substitute material is more preferable as augmentation procedure for bony defect healing around implant site than the use of Algipore bone substitute material

attitude of private dental practitioners towards treatment and management of children in Riyadh, Saudi Arabia

The aim of this investigation was to conduct a survey among private dental practitioners in Riyadh concerning their attitude towards treatment of children including those with special care needs. The sample was drawn from dentists working in private dental clinics in Riyadh for a questionnaire survey. A 5 point Likert-type scale was used to describe the participants' response to questions concerning adequacy of undergraduate training, preference of behavior modification techniques, barriers preventing dentists from treating children and the most suitable incentive options for dentists in treating children. A total of 204 responses were returned with a response rate of 20.4% which provided valid and usable information. The sample included 96.1% Non-Saudi and 3.9% Saudi dentists, 58.1% male and 41.9% female dentists 64.7% general practitioners, 30.5% specialists and 4.7% consultants. Among the 204 respondents, 85% treated children, 65.7% reported time consumption and financial loss as a major barrier in treating children and 60.8%favored tell-show-do as the preferred method of behavior management technique. Our study suggests that majority of private practitioners have a positive attitude towards treating children but time consumption and financial loss was found to be a major barrier in treating children and those with special health care needs effectively

Incidence of aneuploidy in multiple myeloma

In this study, it was planned to utilise flow cytometry to assess incidence of aneuploidy in multiple myeloma[MM] in an unselected population. Age matched healthy control subjects were studied, as well as disease control group. The incidence of DNA aneuploidy in MM was showed to be 59% in the whole population at different stages of disease, and 62% in untreated patients. The study of DNA aneuploidy in MM gives reproducible results and provides insight into the behaviour of disease. An aneuploid clone persists throughout the progress of the disease and appears to be associated with high proliferative activity in the bone marrow