الفهرس 
List of ContentOnly 14 pages are availabe for public view
 |  | from | 112 |  |  |
| | | from | 112 | | |
Abstract
Objective : The aim of the present study was to evaluate the treatment of periodontal intrabony defects clinically and radiographically using open flap debridement (OFD) with equine bone xenograft material in comparison to OFD alone in severe and advanced Periodontitis patients. Methods: A total of 15 patients with severe or advanced periodontitis were selected for this study. The study was based on a split mouth design as follow : Control sites: includes fifteen periodontitis patients which were treated by OFD. Study sites: includes fifteen periodontitis patients with periodontal intrabony defects which were treated by OFD with equine bone xenograft material (Phase I therapy was performed for all patients, which consisted of scaling and root planing, oral hygiene instructions in form of tooth brushing instructions and the use of chlorhexidine mouth wash and an occlusal adjustment when indicated). Four to six weeks following completion of the initial therapy, an evaluation of the periodontal indices examination was performed to start the surgical phase including; plaque index (PI), gingival index (GI), bleeding on probing index (BOP), probing pocket depth (PPD), clinical attachment level (CAL), and assessment of bone level (BL) using cone beam radiography. These parameters were recorded for all selected patients at baseline, three months and six months after surgery except the bone level parameter which was assessed only at baseline and six months after the surgery. Results: All clinical parameters showed a significant difference between PI, GI, BOP, PDD, CAL and BL at baseline and after surgery in the control and study sites. where there was no significant difference between the mean values of PI, GI, BI, PPD, CAL and BL in control compared to study sites at base line and three months after surgery. Also regarding PI, GI, and BOP there was no significant difference when comparing the control sites with the study sites six months after surgery, on the other hand the study sites showed better results regarding mean values of PPD, CAL and BL six months after surgery when compared to the control sites. Conclusion: In the present study, both OFD with equine bone xenograft and OFD alone were effective in promoting a clinical resolution, reducing pocket depth, improving clinical attachment levels and promoting defect fill. Although, in the long term OFD with equine bone xenograft material showed