简介：　　 [摘要 ] 目的：研究分析纤维桩利用其独特的物理化学性质，保存修复残根残冠的临床应用。方法：此次研究的对象是选择 112例患者的 168颗患牙，经完善根管治疗且牙周组织健康、牙根有足够长度的牙体缺损患牙。其中穿髓型楔状缺损的牙齿缺损 10颗，邻面缺损 7颗，因特殊原因不做冠 7颗，残根残冠修复形成桩核冠 144颗。结果：经过 2年的临床观察， 168颗牙齿中 161颗完好， 7例失败，其中 1例舌侧充填体折断松动， 2例牙体组织折断，充填体和纤维桩完好， 3例牙颈部折断， 1例纤维状脱落，牙根完好。成功率为 95.8%。其中桩核冠修复成功率为 97.1%，牙体修复成功率为 88.8%。结论：纤维桩通过树脂黏接剂与根管牙本质形成较高的黏接强度，使牙根与修复体之间连接成为一个坚固的整体，从而延长修复体和牙体组织的使用寿命，使修复后的患牙可以承载各种口腔功能性应力。  　　 [关键词 ] 纤维桩；牙体缺损；桩核冠；黏接；固位  　 [Abstract] Objective: To study and analyze the clinical application of fiber post in the preservation and restoration of residual roots and crowns with its unique physical and chemical properties. Methods: 168 teeth of 112 patients were selected in this study. There were 10 teeth with wedge-shaped defects and 7 teeth with adjacent defects. 7 teeth were not made crowns due to special reasons. 144 post core crowns were formed after residual root and crown restoration. Results: after 2 years of clinical observation, 161 of 168 teeth were in good condition, and 7 cases failed. Among them, 1 case of lingual filling was broken and loose, 2 cases of tooth tissue was broken, the filling body and fiber post were intact, 3 cases of cervical fracture, 1 case of fibrous shedding and intact root. The success rate was 95.8%. The success rate of post core crown restoration was 97.1%, and the success rate of tooth restoration was 88.8%. Conclusion: the fiber post can form a strong bonding strength with the root canal dentin through the resin adhesive, which makes the connection between the root and the restoration a solid whole, so as to prolong the service life of the prosthesis and tooth tissue, and make the restored teeth bear various oral functional stresses.

简介：　　 【摘要】 目的：探讨全身应用不同抗生素辅助牙周基础治疗侵袭性牙周炎的临床效果。方法：选择笔者所在医院 2018年 1月 -2020年 5月收治的 100例侵袭性牙周炎患者。随机分组，替硝唑治疗组采取全身应用抗生素替硝唑辅助牙周基础治疗，阿奇霉素治疗组则采取全身应用抗生素阿奇霉素辅助牙周基础治疗。比较两组侵袭性牙周炎疗效，侵袭性牙周炎炎症吸收时间、侵袭性牙周炎疼痛消失时间，治疗前后患者牙周炎炎症指标、生活质量，不良作用。结果：阿奇霉素治疗组总有效率高于替硝唑治疗组，治疗后阿奇霉素治疗组牙周炎炎症指标、生活质量均优于替硝唑治疗组，侵袭性牙周炎炎症吸收时间、侵袭性牙周炎疼痛消失时间均短于替硝唑治疗组，差异均有统计学意义（ P<0.05）。两组不良作用发生率比较差异无统计学意义（字 2=0.000， P>0.05）。结论：全身应用抗生素阿奇霉素辅助牙周基础治疗侵袭性牙周炎效果好。  　　 【关键词】 全身应用 ; 不同抗生素 ; 辅助牙周基础治疗 ; 侵袭性牙周炎 ; 临床效果  　 Objective: To investigate the clinical effect of systemic application of different antibiotics in the treatment of aggressive periodontitis. Methods: 100 patients with aggressive periodontitis admitted to our hospital from January 2018 to may 2020 were selected. They were randomly divided into two groups: tinidazole treatment group was given systemic antibiotic tinidazole assisted periodontal basic treatment, while azithromycin treatment group was given systemic antibiotic azithromycin auxiliary periodontal basic treatment. The curative effect, inflammatory absorption time, pain disappearance time, inflammatory index, quality of life and adverse effects were compared between the two groups. Results: the total effective rate of azithromycin treatment group was higher than that of tinidazole treatment group. After treatment, periodontitis inflammation index and quality of life in azithromycin treatment group were better than those in Tinidazole treatment group. The inflammatory absorption time and pain disappearance time of invasive periodontitis in azithromycin treatment group were shorter than those in Tinidazole treatment group (P < 0.05). There was no significant difference in the incidence of adverse effects between the two groups (word 2 = 0.000, P > 0.05). Conclusion: the systemic application of antibiotic azithromycin in the treatment of aggressive periodontitis is effective.