Korsch Michael, Obst Ursula, Walther Winfried
Dental Academy for Continuing Professional Development, Karlsruhe, Germany.
Clin Oral Implants Res. 2014 Jul;25(7):797-802. doi: 10.1111/clr.12173. Epub 2013 Apr 21.
Cement-retained fixed implant-supported restorations involve the risk of excess cement, which can associate peri-implantitis. In connection with routine therapy using a methacrylate cement (Premier Implant Cement, Premier(®) Dental Products Company, Plymouth Meeting, PA, USA) to retain fixed implant-supported restorations, complications, that is, inflammations, were developed in some cases. After removing the suprastructure and the abutment, residual excessive cement was found. For this reason, all implant-supported restorations that had been fixed with this type of methacrylate cement were reevaluated and retreated.
In a retrospective clinical observational study including 71 patients with 126 implants, the findings made during retreatment were documented. In all cases, the suprastructure and the abutment were removed. For recementation, Temp Bond (Kerr Sybron Dental Specialities, Washington, D.C., USA) was used. If an inflammation had developed, a follow-up appointment was scheduled 3-4 weeks later.
In 59.5% of the implants, cement residues were identified. Bleeding on probing was diagnosed at 80% of the implants with excess cement and suppuration at 21.3% of the implants. After removal of the excess cement and recementation with Temp Bond, a 76.9% reduction in bleeding on probing was found at follow-up. Suppuration was not found around any of the implants at follow-up.
Excess cement left in the implant-mucosal interface caused bleeding on probing in most cases and suppuration in some. The removal of excess cement after cementation should be given high priority. In this retrospective observational study, an unusually high number of implants with excess cement after cementation was found with the methacrylate cement applied in the study.
骨水泥固位的种植体支持式固定修复存在骨水泥过量的风险，这可能与种植体周围炎相关。在使用甲基丙烯酸酯类骨水泥（美国宾夕法尼亚州普利茅斯会议市普利茅斯牙科产品公司的Premier种植体骨水泥）进行常规治疗以固位种植体支持式固定修复时，某些病例出现了并发症，即炎症。在拆除上部结构和基台后，发现有残留的过量骨水泥。因此，对所有用这种甲基丙烯酸酯类骨水泥固定的种植体支持式修复体进行了重新评估和再治疗。
在一项回顾性临床观察研究中，纳入了71例患者的126颗种植体，记录了再治疗过程中的发现。所有病例均拆除了上部结构和基台。再粘结时使用了Temp Bond（美国华盛顿特区科尔西布朗牙科专业公司）。如果出现炎症，则在3至4周后安排随访预约。
在59.5%的种植体中发现了骨水泥残留。在骨水泥过量的种植体中，80%诊断为探诊出血，21.3%的种植体出现化脓。在用Temp Bond去除过量骨水泥并重新粘结后，随访时探诊出血减少了76.9%。随访时在任何种植体周围均未发现化脓。
种植体 - 黏膜界面残留的过量骨水泥在大多数情况下导致探诊出血，在某些情况下导致化脓。粘结后应高度重视去除过量骨水泥。在这项回顾性观察研究中，发现使用本研究中应用的甲基丙烯酸酯类骨水泥粘结后，出现过量骨水泥的种植体数量异常高。
