牙醫學(三)（包括齒內治療學、牙體復形學、牙周病學等科目及其相關臨床實例與醫學倫理）題庫下載題庫

【Hint】 Full-thickness flaps, which denude the bone, result in a superficial bone necrosis at 1 to 3 days. Osteoclastic resorption follows and reaches a peak at 4 to 6 days, declining thereafter. This results in a loss of bone of about 1 mm and the bone loss is greater if the bone is thin.

【出處】11th Clinical periodontology, Carranza and Newman, Saunders W.B. Co. P.554

手術後24小時內: 島瓣（flap）與牙齒之間有大量之白血球（PMNs）、紅血球聚集及血液凝塊

1-3 days: 全層瓣（full-thickness flap）暴露的牙骨嵴會壞死，導致牙骨嵴吸收約1 mm

4-6Days: 破骨細胞骨吸收（osteoclastic resorption）巔峰

2 weeks: 膠原纖維（collagen fiber）平行於牙根表面

手術後一個月:牙齦溝上皮（gingival crevice epithelium）會完全形成