Wilson Thomas G
J Periodontol. 2009 Sep;80(9):1388-92. doi: 10.1902/jop.2009.090115.
Cement-retained restorations are commonly used on dental implants. Residual excess cement after placement of fixed partial dentures has been associated with clinical and radiographic signs of peri-implant disease. The purpose of this study was to explore the relationship between excess dental cement and peri-implant disease using the dental endoscope.
Thirty-nine consecutive patients with implants exhibiting clinical and/or radiographic signs of peri-implant disease were studied. Patients were enrolled in the study during a 5-year period in a private periodontal practice. Twelve of these patients had similar implants without signs of inflammation; these implants served as controls. There were 20 controls and 42 test implants. All were evaluated using a dental endoscope initially, and all but one implant was evaluated at a 30-day follow-up. Results from both groups were assessed by two trained operators and recorded.
None of the controls and all 42 of the test implants had clinical signs of peri-implant disease at initial treatment. Excess cement was found in none of the controls and 34 of the test sites. Thirty days after cement removal, 25 of 33 test sites from which the cement was removed had no clinical or endoscopic signs of inflammation.
Excess dental cement was associated with signs of peri-implant disease in the majority (81%) of the cases. Clinical and endoscopic signs of peri-implant disease were absent in 74% of the test implants after the removal of excess cement.
骨水泥固位修复体常用于牙种植体。固定局部义齿放置后残留的多余骨水泥与种植体周围疾病的临床和影像学表现有关。本研究的目的是使用牙科内窥镜探讨多余牙科骨水泥与种植体周围疾病之间的关系。
对39例连续的有种植体周围疾病临床和/或影像学表现的患者进行了研究。这些患者是在一家私人牙周诊所5年期间纳入研究的。其中12例患者有类似的种植体但无炎症迹象；这些种植体作为对照。有20个对照种植体和42个测试种植体。所有种植体最初均使用牙科内窥镜进行评估，除1个种植体外，所有种植体均在30天随访时进行评估。两组结果由两名经过培训的操作人员评估并记录。
初始治疗时，所有对照种植体均无种植体周围疾病的临床体征，42个测试种植体均有种植体周围疾病的临床体征。对照种植体均未发现多余骨水泥，测试部位有34个发现有多余骨水泥。去除骨水泥30天后，33个去除骨水泥的测试部位中有25个没有临床或内窥镜炎症迹象。
在大多数（81%）病例中，多余牙科骨水泥与种植体周围疾病的体征有关。去除多余骨水泥后，74%的测试种植体没有种植体周围疾病的临床和内窥镜体征。
