Abstract: Objective: To evaluate the success rate between immediate and late implant placement methods in molar area implant. Methods: Under strickly indication control, molar area implant prosthesis was proceeded in 198 patients with permission. Immediate implant placement was applied in 67 patients and late implant placement was applied in 131 patients. Patients were followed up for 2 years after implant installation. The implant success rate and stability between the two groups was compared. Results: Gomphiasis was arised in 4 patients who were received immediate implant placement. The success rate was 94.0%. The same situation was found in 6 patients received late implant placement. The success rate was 95.4%. No significant difference was found between these two methods (P>0.05). Conclusion: Immediate implant placement could obtain high success rate in strickly indication control patients.

Key words: immediate implant placement, late implant placement, molar area, success rate, stability

摘要： 目的：比较磨牙区即刻种植和延迟种植两种方式种植义齿的成功率。方法：198例磨牙区行种植修复的病例中，在控制适应证和患者同意的情况下，即刻种植共植入种植体67枚，延迟种植共植入种植体131枚。种植术后随访2年，观察种植体的稳定性，对两种不同种植方式的种植体的成功率进行比较。结果：67枚行即刻种植的种植体中，有4枚出现松动，成功率为94.0%；131枚行延迟种植的种植体中，有6枚出现松动，成功率为95.4%。两组种植方式成功率的比较，差异无统计学意义(P>0.05)。结论：在严格控制适应证的情况下，即刻种植也可获得较高成功率。

关键词: 即刻种植, 延迟种植, 磨牙区, 成功率, 稳定性

CLC Number: 

• R782.13