Can the Three Calcium Phosphate beta considered good choice when it is used as bone graft in the maxillary sinus lifting

The objective of the present study was to investigate, in a sub-sinus bone augmentation model in rabbits, effect of Three Calcium Phosphate beta at different stages of the osteogenesis process. Histological and statistical analyses were performed. Rabbits underwent sinus augmentation procedures using Three Calcium Phosphate beta (Cerasorb) and Collagen membrane ( Gen Derm ) .

Evaluate the effectiveness of platelet-rich fibrin for closure of oroantral communication

The aim of the study was to evaluate the effectiveness of platelet-rich fibrin (PRF) for closer of oroantral communication (OAC) during two months of clinical and radiographical follow-up. Eleven patients of both sexes(45.5% males ,54.5% females) included in this study who had (OAC) after dental extraction. The closer was done by using fibrin clot which was plugged into the alveolar socket of the extraction site that contains the communication, and then we sutured the fibrin membrane to the gingival borders above it. The results revealed that (PRF) can close the oroantral communication successfully in 81.8% of the sample with the following complications :pain 27.3% , edema 18.2% , dehiscence 18.2%. We conclude that platelet-rich fibrin can close oroantral communication that results from dental extraction when it has been used as a clot and membrane together with simple complicated subsequent clinical symptoms and without radiographical signs of inflammation of the maxillary sinus.

A Clinical and Radiographical Comparative Study of Sinus Lifting Using Balloon Technique When There are Adjacent Teeth to The Edentulous Area Versus Absence of Adjacent Teeth The Edentulous Area

The floor of maxillary sinus starts to get down when the posterior upper teeth are extractedو which demand proceed sinus floor elevation when we plan to put dental implant in this place. The most common complication that happens in this procedure is membrane perforation which took place at range of 5,5- 56.16 %. So the method of sinus lifting with balloon has spread which is considered a safe and affective method and it is indicated especially when there is a small dental loss (1-2 teeth ). The principle of this method depends on pumping a liquid ( saline usually ) into the balloon which causes sinus floor elevating slowly and continuously. The research aims to evaluate bone thickness when sinus floor elevated with balloon when there are adjacent teeth and when there are not. The balloon technique of sinus floor lifting is applied on 30 sinus lifting cases in 27 patients who have more than 2 teeth dental loss in posterior superior area and need sinus lifting for dental implantation in this area. The patients were divided into two groups: the first one included 15 cases of sinus floor lifting with balloon and there are approximate teeth to the edentulous area. The second group included 15 cases of sinus floor lifting with balloon when there are no adjacent teeth. Patients had been followed up in 5 periods using dental cone beam radiography ( after the surgery, after 3 months, after 6 months, after 9 months, after 1 year ). The research showed in the two groups that At confidence level of R = 95 % there were no statistic variations of the range of success, when there are adjacent teeth to the edentulous area and when there are not. The research recommends using balloon technique of sinus floor lifting when there are adjacent teeth and when there are not .

A Clinical and Histometrical Study of Using Tricalcium Phosphate in the Maxillary Sinus Lift

Graft insertion can effectively enhance the regeneration of debilitated bone. Aim: The effects of an alloplastic bone-replacing material, b-tricalcium phosphate, and of autogenous bone graft were compared.