الفهرس 
Clinical assessment of buccal plate expansion technique versus guided bone regeneration technique in socket preservation in the esthetic zone
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Abstract
The aim of this study was to introduce and evaluate a new technique for socket preservation involving internal expansion of the buccal plate of the extraction socket using internal flapless corticotomy and bone grafting the extraction socket with application of bioresorbable membrane in comparison with the conventional guided bone regeneration technique for socket preservation.22 patients with 22 non restorable teeth requiring atraumatic tooth extraction in the maxillary anterior or premolar area ranging to the second premolar with an intact buccal plate of bone and no periapical pathosis.They were randomized into 2 groups, 11 patients in the test group in which extraction socket preservation using buccal plate expansion technique is performed , and 11 patients in the control group in which socket preservation with guided bone regeneration technique using natural bovine bone mineral and collagen bio- resorbable membrane was performed. Horizontal and vertical ridge changes was the recorded before and 4 months after extraction using CBCT. Post-operative pain and swelling along with keratinized tissue width and gingival phenotype were recorded as secondary outcomes.95 mm(±0.97), with no statistically significant difference between groups (p=0.77)