种植体周围软组织厚度干预的临床研究

An investigation on peri-implant status in different soft tissue thickness of dental implant

目的:对种植体周软组织厚度通过手术方式进行干预,观察该干预对种植体周健康状况的影响。方法:在种植义齿Ⅱ期手术过程中,对于软组织厚度>5mm者行斜形切口;对于软组织厚度预期<1.5mm者行结缔组织移植术。两者均调整软组织厚度至2.5～3mm,以对侧同名部位的种植牙为对照组,于种植体修复后半年,检测种植体周牙龈炎症指数(GI)、龈沟内金属基质蛋白酶-8(MMP-8)含量,以及种植体周骨丧失(BL)。结果:与对照组相比,斜形切口组MMP-8含量、BL均显著降低(P<0.05),结缔组织移植组GI、MMP-8、BL均无显著性变化。结论:适当的种植体周围软组织厚度处理有利于维护种植体周软组织的健康。

Objective： To investigate the changes of clinical status around dental implants with different soft tissue thickness management. Method：When perfoming the stage Ⅱ operation, the soft tissue thickness was modulated to 2.5-3 mm by oblique incision or connective tissue flap transplantation.The implants in the other side were served as control.After 0.5 years loading, the index of ginginval inflammary, MMP-8 content and bone loss were detected. Result：The MMP-8, BL was decreased in the oblique incision group while no significance was found in GI, BL and MMP-8 in the connective tissue transplantation group. Conclusion： Suitbale soft tissue mangament is benefitable for maitaining the health of soft tis- sue around the dental implants.