Lindeboom Jérôme A H, Tjiook Yang, Kroon Frans H M
Department of Oral and Maxillofacial Surgery, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006 Jun;101(6):705-10. doi: 10.1016/j.tripleo.2005.08.022. Epub 2006 Mar 22.
To determine clinical success when implants are placed in chronic periapical infected sites.
Fifty patients (25 females, 25 males, mean age 39.7 +/- 14.5 years) were included in this prospective controlled study. After randomization, 25 Frialit-2 Synchro implants were immediately placed (IP) after extraction, and 25 Frialit-2 Synchro implants were placed after a 3-month healing period (DP). Thirty-two implants were placed in the anterior maxilla and 18 implants were placed in the premolar region. Implant survival, mean Implant Stability Quotient (ISQ) values, gingival aesthetics, radiographic bone loss, and microbiologic characteristics of periapical lesions were evaluated for both groups.
Overall, 2 implants belonging to the IP group were lost, resulting in a survival rate of 92% for IP implants versus 100% for DP implants. Mean ISQ, gingival aesthetics and radiographic bone resorption, and periapical cultures were not significantly different with the IP and DP implants.
Immediate implant placement in chronic periapical lesions may be indicated.
确定在慢性根尖周感染部位植入种植体后的临床成功率。
本前瞻性对照研究纳入了50例患者（25例女性，25例男性，平均年龄39.7±14.5岁）。随机分组后，25枚Frialit-2 Synchro种植体在拔牙后立即植入（IP组），25枚Frialit-2 Synchro种植体在经过3个月的愈合期后植入（DP组）。32枚种植体植入上颌前部，18枚种植体植入前磨牙区。对两组的种植体存活率、平均种植体稳定性商数（ISQ）值、牙龈美观度、影像学骨吸收以及根尖周病变的微生物学特征进行评估。
总体而言，IP组有2枚种植体丢失，IP组种植体的存活率为92%，而DP组为100%。IP组和DP组的平均ISQ、牙龈美观度、影像学骨吸收以及根尖周培养结果无显著差异。
在慢性根尖周病变中可考虑即刻植入种植体。
