EVALUATION OF MARGINAL BONE LOSS AFTER IMMEDIATE IMPLANT PLACEMENT IN MAXILLARY ESTHETIC ZONE WITH CORAL BONE VERSUS XENOGRAFT

Amro Abdelaal Abdelhakim Elbahkiri* , Ragia Mohamed Mounir** and Mohamed Mounir***
* Master Degree Of Implantology, Faculty Of Dentistry, Cairo, Egypt
** Professor Of Oral And Maxillofacial Surgery, Faculty Of Dentistry, Cairo, Egypt
*** Lecturer of Oral And Maxillofacialsurgery, Facultyof Dentistry, Cairo, Egypt

Abstract

Aim: The aim of the study is to evaluate marginal bone loss using coral bone graft which is a xenograft of marine origin versus xenograft of bovine origin in immediate implant placement in maxillary esthetic zone as a gap filling material.

Materials and Methods: Ten patients were participated in this study (3 males and 7 females), with a mean age of 34 years having non restorable single or multiple maxillary anterior teeth (18 fresh extraction sockets were conducted in the study). patient’s sockets were divided randomly and equally into 2 groups : Group A (control group): included 9 extraction sockets in 5 patients (one male and 4 females) which recived immediate post extraction implant placement with xenograft between the residual labial bone and implant surface. Group B (study group): included 9 extraction sockets in 5 patients(2 males and 3 females) which received immediate post extraction implant placement with coral bone between the residual labial bone and implant surface. Cone beam CT was taken immediately post operative and 4 months postoperatively to measure the amount of marginal bone loss in each group and then the percentage of bone loss in each group.

Results: Wound healing was uneventful in all patients without any signs of infection or wound dehiscence , Results showed : The percentage of 4 months postoperative vertical bone loss of the control group was 7.8% and the standard deviation was 4.24. The percentage of 4 months postoperative vertical bone loss of the study group was 7.36 % and the standard deviation was 3.16. The difference between the percentages of 4 months postoperative bone loss between both groups was not statistically significant (P value =0.807)

Conclusion: The amount of marginal bone loss in both groups was small yet it was statistically significant, the marginal bone loss in group A (with xenograft) was more than group B (with coral bone) but it was not statistically significant.

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