摘要
在 ３０ 只成年兔的下颌两切牙唇侧牙槽骨制备 １０ｍ ｍ ×５ｍ ｍ 的开窗骨缺损，其表面覆盖 Ｇｏｒｅ Ｔｅｘ 膜。该膜分别于术后 １、２、３、５ 周取出，以不放膜组为空白对照。所有动物５ 周处死，标本作组织学分析。结果表明，２ 周取膜组较空白对照组有更多的新骨形成，而 ３ 周或 ５ 周取膜组织的再生量无进一步增加。提示在引导兔开窗骨缺损的牙周再生中，屏障膜放置所需要的最适宜时间是 ２ 周。
Thirty young adult rabbits were used and fenestration defect was made through labial alveolar bone of the left and right incisors to the root surfaces. The defect dimensions were 5mm apicoronally by 10mm mesiodistally. The Gore Tex membrane was used to cover the defect and removed at 1,2,3, and 5 weeks, respectively, after surgery. In the control defect, no Gore Tex membrane was used. All animals were sacrificed at the end of 5 weeks study. Results of histologic analysis showed that the group in which Gore Tex membranes were left in place for 2 weeks showed thicker new bone formation than controls. However, no further regeneration was present in the 3 week or the 5 week groups. This suggests that the optimal time for placement of a barrier membrane over a fenestration defect in rabbit is 2 weeks.
出处
《山东医科大学学报》
1999年第3期199-201,共3页
Acta Academiae Medicinae Shandong
关键词
引导组织再生
屏障膜
牙周缺损
治疗
牙周再生
Guided tissue regeneration
Barrier membrane
Periodontal therapy
Animals,laboratory
Rabbit
