河北医科大学学报

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BMP2对大鼠延迟再植牙牙周膜愈合影响的实验研究

  

  1. 1.皖南医学院口腔修复教研室,安徽 芜湖 241002;2.皖南医学院弋矶山医院口腔科,安徽 芜湖 241000;
    3.河北医科大学第二医院口腔内科,河北 石家庄 050000;4.河北省邯郸市中心医院口腔科,河北 邯郸 056001
  • 出版日期:2018-12-25 发布日期:2018-11-30
  • 作者简介:胡通(1987-),男,安徽芜湖人,皖南医学院口腔医学院主治医师,医学硕士,从事口腔修复临床及基础研究。

Effect of bone morphogenetic protein2(BMP2) on periodontal regeneration after delayed replantation of avulsed tooth in rat#br#

  1. 1.Department of Oral Restoration, Wannan Medical College, Anhui Province,Wuhu 241002, China;
    2.Department of Stomatology, Yijishan Hospital, Wannan Medical College, Anhui Province,Wuhu
    241000, China;3.Department of Oral Medicine, the Second Hospital of Hebei Medical
    University, Shijiazhuang 050000, China; 4.Department of Stomatology, Handan
    Central Hospital,Hebei Province, Handan 056001, China
  • Online:2018-12-25 Published:2018-11-30

摘要: [摘要]〓〖HTH〗目的〖HTSS〗〖KG*2〗探讨骨形态发生蛋白2(bone morphogenetic protein2,BMP2)对大鼠牙脱位后延迟再植牙周膜愈合的影响。
〖HTH〗方法〖HTSS〗〖KG*2〗将16只体重250~300 g的雄性Wistar大鼠随机分为对照组、实验组各8只,2组均将脱位牙自然干燥1 h,体外行根充、玻璃离子根尖封闭。实验组牙根表面涂抹BMP2糊剂后再植,对照组牙根则不涂抹。术后8周取出含牙骨块,进行脱钙、切片及HE染色,对牙根的愈合情况进行组织形态学评价。
〖HTH〗结果〖HTSS〗〖KG*2〗实验组与对照组牙骨质愈合、牙根替代性吸收和炎症性吸收差异均无统计学意义(P>0.05)。
〖HTH〗结论〖HTSS〗〖KG*2〗BMP2可在一定程度上有利于牙骨质愈合,但尚不能认为其能有效抑制脱位牙延迟再植的牙根吸收。

关键词: 牙脱位, 牙再植, 大鼠

Abstract: [Abstract] Objective〖HTSS〗〓To investigate the effect of bone morphogenetic protein2(BMP2) on periodontal regeneration after delayed replantation of avulsed tooth in rat.
〖HTH〗〖WTHZ〗Methods〖HTSS〗〓Sixteen male Wistar rats weighed 250 to 300 g were randomly assigned to a control group(n=8) and experimental group(n=8). The teeth were extracted and airdried for 1 hour. The root canals were endodontically treated and the root apexes were sealed with glass ionomer. In experimental group, BMP2 paste is applied to root surface of each tooth and replanted in the original socket. Teeth in control group is replanted without any surface treatment. After 8 weeks of replantation, the bone segment from the replantation site is obtained, decalcified and evaluated histologically.
〖HTH〗〖WTHZ〗Results〖HTSS〗〓There was no statistically significant difference regarding the cementum regeneration, replacement root resorption and inflammatory root resorption in both groups(P>005).
〖HTH〗〖WTHZ〗Conclusion〖HTSS〗〓The results indicate that the application of BMP2 may promote cementum regeneration and inhibit the inflammatory root resorption. However, the inhibitory effect was not significant in the delayed replantation of avulsed teeth.

Key words: tooth avulsion; tooth replantation, rats