層遞法探查疏通中青年患者下頜磨牙近中中央根管的初步研究
本文選題:層遞法 切入點(diǎn):CBCT 出處:《口腔醫(yī)學(xué)研究》2017年08期 論文類型:期刊論文
【摘要】:目的:評估層遞法探查中青年患者下頜磨牙近中中央根管的應(yīng)用價值。方法:采集20~45歲患者60人,下頜第一磨牙45顆,下頜第二磨牙25顆。應(yīng)用層遞法對根管系統(tǒng)進(jìn)行探查,記錄探查結(jié)果,應(yīng)用卡方檢驗(yàn)統(tǒng)計(jì)分析。采用分角度X線投照描計(jì)下頜磨牙MM根管的走行特點(diǎn)。結(jié)果:肉眼探查確定MM根管3個(4.3%),顯微鏡下確定7個(10.0%),顯微超聲技術(shù)輔助下確定15個(21.4%),CBCT結(jié)合顯微超聲技術(shù)輔助下確定17個(24.3%),第四階段與前兩個階段間存在顯著統(tǒng)計(jì)學(xué)差異(P0.05),但與第三階段探查分析無統(tǒng)計(jì)學(xué)差異。在確定的17個MM根管中,顯示"獨(dú)立"根尖孔的2個;"歧狀"解剖8個;"融合"解剖7個。結(jié)論:層遞法應(yīng)用于中青年下頜磨牙MM根管的探查,可以有效提高下頜磨牙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.
【作者單位】: 滄州市人民醫(yī)院口腔科;
【基金】:滄州市科技支撐計(jì)劃項(xiàng)目(編號:151302106)
【分類號】:R781.05
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