Ow R K, Zarb G A, Schmitt A
Department of Prosthodontics, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada.
J Prosthet Dent. 1999 Jun;81(6):689-95. doi: 10.1016/s0022-3913(99)70108-3.
There is a need for specific documentation that successful osseointegration related to Brânemark implants can be maintained, despite an apparent clinically vulnerable peri-implant soft tissue status.
This study monitored longitudinal peri-implant clinical responses in the mandible and sought to question whether a relatively deep mucogingival pocket will give rise to a greater loss of peri-implant bone than a shallow pocket.
Subjects, 8 women patients (mean age 62 years), were treated with Brânemark mandibular osseointegrated implant-supported prostheses. Four of these subjects had limited (average <3.5 mm) and 4 had unlimited (average > or =3.5 mm) peri-implant pocket probing depths and constituted the control and test subgroups, respectively. Longitudinal changes in peri-implant PAL and radiographic bone support were assessed.
Overall probing attachment levels (PALs) of the peri-implant mucogingival complex showed little change. The PAL loss was only minimally significant within the control subjects, and not significant for test subjects. The difference in these mucogingival responses between test and control subjects was significant (P = .04). There was no significant overall longitudinal change in peri-implant bone levels. The longitudinal change of peri-implant bone level was not significant within or between the control and test subjects.
需要有具体的文献证明，尽管种植体周围软组织状态在临床上明显较为脆弱，但与布伦马克种植体相关的成功骨结合仍可维持。
本研究监测了下颌骨种植体周围的纵向临床反应，并试图探讨相对较深的黏膜牙龈袋是否会比浅袋导致种植体周围骨量的更大损失。
8名女性患者（平均年龄62岁）接受了布伦马克下颌骨骨结合种植体支持的假体治疗。其中4名受试者种植体周围袋探诊深度有限（平均<3.5毫米），4名受试者种植体周围袋探诊深度不受限（平均≥3.5毫米），分别构成对照组和试验组。评估了种植体周围探诊附着水平（PAL）和影像学骨支持的纵向变化。
种植体周围黏膜牙龈复合体的总体探诊附着水平变化不大。对照组受试者的PAL丧失仅具有极小的显著性，试验组受试者则无显著性。试验组和对照组受试者在这些黏膜牙龈反应方面的差异具有显著性（P = 0.04）。种植体周围骨水平无显著的总体纵向变化。对照组和试验组受试者内部或之间种植体周围骨水平的纵向变化均无显著性。
