CAJ | 학술논문

目的：研究局限型牙周炎患牙的侧枝根管、副根管在其根管系统中的数量及发生率，探讨牙髓病变在局限型牙周炎发生、发展过程中的作用。方法按照统一标准收集因局限型牙周炎（局限组）及广泛型牙周炎（广泛组）而拔除的患牙各30颗。拔除前通过影像学检查分析牙槽骨的吸收状况，制作透明体外牙标本后，在解剖显微镜下对侧枝根管及副根管情况观察计数。结果局限型牙周炎患牙中牙槽骨角型吸收发生比率（76.7%）明显高于广泛型牙周炎患牙（36.7%）；在所收集的磨牙中，局限型牙周炎患牙侧枝根管及副根管的发生率为80%，广泛型牙周炎患牙侧枝根管及副根管的发生率约为52%，二者间存在显著差异。结论侧副根管在局限型牙周炎患牙中的发生率较高，患牙的牙髓病变及其额外的解剖通道在局限型牙周炎的发生、发展过程中可能起了重要的作用，对于局限型牙周炎的治疗应尽早进行牙髓治疗以消除感染源。
목적：연구국한형아주염환아적측지근관、부근관재기근관계통중적수량급발생솔，탐토아수병변재국한형아주염발생、발전과정중적작용。방법안조통일표준수집인국한형아주염（국한조）급엄범형아주염（엄범조）이발제적환아각30과。발제전통과영상학검사분석아조골적흡수상황，제작투명체외아표본후，재해부현미경하대측지근관급부근관정황관찰계수。결과국한형아주염환아중아조골각형흡수발생비솔（76.7%）명현고우엄범형아주염환아（36.7%）；재소수집적마아중，국한형아주염환아측지근관급부근관적발생솔위80%，엄범형아주염환아측지근관급부근관적발생솔약위52%，이자간존재현저차이。결론측부근관재국한형아주염환아중적발생솔교고，환아적아수병변급기액외적해부통도재국한형아주염적발생、발전과정중가능기료중요적작용，대우국한형아주염적치료응진조진행아수치료이소제감염원。
Objective???To?study?the?number?and?incidence?of?the?lateral?root-canals?and?accessory?root-canals?in?localized?periodontitis?teeth.?Explore?the?role?of?endodontic?lesions?in?the?process?of?localized?periodontitis.?Methods Thirty?teeth?with?localized?periodontitis(experiment?group)?and?30?teeth?with?generalized?periodontitis(control?group)?were?collected?according?to?a?coincident?standard.?Before?the?teeth?were?extracted,?the?alveolar?bone?absorption?was?analyzed?by?imageological?examination?before?the?experiment.?The?transparent?specimen?was?made?in vitro?teeth.?The?lateral?root-canals?and?accessory?root-canals?were?counted?under?a?dissecting?microscope.?Results???The?statistical?analysis?revealed?that?the?incidence?of?angular?alveolar?resorption?in?the?teeth?with?localized?periodontitis(76.7%)?was?greater?than?that?in?the?teeth?with?generalized?periodontitis(36.7%)?obviously.?The?incidence?of?the?lateral?and?accessory?root-canal?was?80%?and?52%?in?the?teeth?with?localized?periodontitis?and?generalized?periodontitis?respectively.?The?difference?between?the?two?groups?was?significant.?Conclusion???The?lateral?root-canals?and?accessory?root-canals?were?more?in?localized?periodontitis.?The?role?of?endodontic?lesions?and?the?excess?anatomic?pathway?in?the?process?of?localized?periodontitis?was?very?important.