层递法探查疏通中青年患者下颌磨牙近中中央根管的初步研究

发布时间：2018-03-19 09:52

本文选题：层递法　切入点：CBCT　出处：《口腔医学研究》2017年08期 　论文类型：期刊论文

【摘要】：目的:评估层递法探查中青年患者下颌磨牙近中中央根管的应用价值。方法:采集20~45岁患者60人,下颌第一磨牙45颗,下颌第二磨牙25颗。应用层递法对根管系统进行探查,记录探查结果,应用卡方检验统计分析。采用分角度X线投照描计下颌磨牙MM根管的走行特点。结果:肉眼探查确定MM根管3个(4.3%),显微镜下确定7个(10.0%),显微超声技术辅助下确定15个(21.4%),CBCT结合显微超声技术辅助下确定17个(24.3%),第四阶段与前两个阶段间存在显著统计学差异(P0.05),但与第三阶段探查分析无统计学差异。在确定的17个MM根管中,显示"独立"根尖孔的2个;"歧状"解剖8个;"融合"解剖7个。结论:层递法应用于中青年下颌磨牙MM根管的探查,可以有效提高下颌磨牙MM根管的探查成功率。
[Abstract]:Objective: to evaluate the application value of laminar method in detecting the proximal central root canal of mandibular molars in young and middle-aged patients. Methods: 60 patients aged 20 and 45 years old, 45 mandibular first molars and 25 mandibular second molars were collected. Record the findings, Statistical analysis of chi-square test was used. The walking characteristics of MM root canal of mandibular molars were measured by means of angle X ray. Results: naked eye exploration confirmed that MM root canal was 4. 3%, 7 were determined under microscope and 10. 0% were determined by microscope and ultrasonic technique was used to help determine MM root canal. There were significant statistical differences between the 4th stage and the first two stages (P 0.05), but there was no statistical difference between CBCT and the third stage. In the 17 MM root canals determined, there was no statistical difference between the two stages (P < 0.05), but no significant difference was found between the two stages (P < 0.05), but no statistical difference was found between the two stages. The results showed that "independent" apical foramen (2), "dissection" (8) and "fusion" (7). Conclusion: the laminar method can effectively improve the success rate of MM root canal exploration in young and middle-aged mandibular molars.
【作者单位】：沧州市人民医院口腔科;
【基金】：沧州市科技支撑计划项目(编号:151302106)
【分类号】：R781.05

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