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目的:探讨下颌阻生智牙拔除后,用骨组织工程支架材料充填拔牙窝,修复第二磨牙远中牙槽骨高度的临床效果。方法:13例患者在阻生智牙拔除后,即刻植入组织工程骨微粒(小牛无机松质骨Bio-oss、倍骼生PerioGlasfi)于牙槽窝内,术后定期随访,并从临床和X线影像检查比较术后1、12周时,第二磨牙远中牙龈附着水平和牙槽嵴高度的变化。采用SPSS10.0软件包对数据进行配对样本t检验。结果:所有患者术后未出现并发症,术后12周时,第二磨牙远中牙槽嵴高度显著降低(P<0.05)。结论:下颌阻生智牙拔除术后即刻植入组织工程骨支架材料,有利于保持第二磨牙远中牙槽嵴的高度。
Objective: To investigate the clinical effect of repairing the distal alveolar bone height of the second molars after extraction of mandibular impacted ratchet teeth with bone tissue engineering scaffold material. METHODS: Tissue engineered bone particles (Bio-oss, PerioGlasfi) were implanted into the alveolar fossa of 13 patients immediately after removal of impacted Chilean wisdom tooth. The patients were followed up regularly and were clinically And X-ray imaging to compare the changes of gingival attachment level and alveolar ridge height in the second molars at 1 week and 12 weeks after operation. Data was paired t-test using SPSS 10.0 software package. Results: No postoperative complications occurred in all patients. The height of alveolar ridge at the distal end of the second molars decreased significantly (P <0.05) at 12 weeks after operation. CONCLUSION: Tissue engineered bone scaffolds are implanted immediately after mandibular impacted mandibular tooth extraction, which helps to maintain the height of distal alveolar ridge of the second molars.