国际医药卫生导报
國際醫藥衛生導報
국제의약위생도보
INTERNATIONAL MEDICINE & HEALTH GUIDANCE NEWS
2011年
1期
24-26
,共3页
Raypex5%根管工作长度%根管冲洗液%根管直径
Raypex5%根管工作長度%根管遲洗液%根管直徑
Raypex5%근관공작장도%근관충세액%근관직경
Raypex5 locator%Root canal working length%Endodontic irrigation%Apical foramen diameter
目的 体外研究不同根管冲洗液对Raypex5根尖定位仪准确性的影响.方法 采用琼脂凝胶模型和毛细玻璃管模拟体内根管,以15#不锈钢K锉为测量电极,在五种不同测量环境下(干燥、0.9%NaCl、3%H2O2、2.5%NaClO、17%EDTA)使用 Raypex5测量毛细玻璃管的长度,记录测量值与实际值之间的差值(IF值).结果 采用方差分析.结果 在玻璃管直径≤0.80mm时,各实验组IF值在-0.60～0.27mm之间,都位于-1.0～0.5mm之间,IF值与管内浸润的电解质无关(P＞0.05);而当玻璃管直径＞0.80mm时,各实验组IF值在-1.66～0.23 mm之间,强电解质(2.5%NaClO、17%EDTA)的浸润会使IF值增大(P＜0.05).结论 在一定根管直径内,Raypex5测量准确性不受根管内电解质的影响.当根尖孔较大,根管内的电解质会影响其测量准确性.
目的 體外研究不同根管遲洗液對Raypex5根尖定位儀準確性的影響.方法 採用瓊脂凝膠模型和毛細玻璃管模擬體內根管,以15#不鏽鋼K銼為測量電極,在五種不同測量環境下(榦燥、0.9%NaCl、3%H2O2、2.5%NaClO、17%EDTA)使用 Raypex5測量毛細玻璃管的長度,記錄測量值與實際值之間的差值(IF值).結果 採用方差分析.結果 在玻璃管直徑≤0.80mm時,各實驗組IF值在-0.60～0.27mm之間,都位于-1.0～0.5mm之間,IF值與管內浸潤的電解質無關(P＞0.05);而噹玻璃管直徑＞0.80mm時,各實驗組IF值在-1.66～0.23 mm之間,彊電解質(2.5%NaClO、17%EDTA)的浸潤會使IF值增大(P＜0.05).結論 在一定根管直徑內,Raypex5測量準確性不受根管內電解質的影響.噹根尖孔較大,根管內的電解質會影響其測量準確性.
목적 체외연구불동근관충세액대Raypex5근첨정위의준학성적영향.방법 채용경지응효모형화모세파리관모의체내근관,이15#불수강K촤위측량전겁,재오충불동측량배경하(간조、0.9%NaCl、3%H2O2、2.5%NaClO、17%EDTA)사용 Raypex5측량모세파리관적장도,기록측량치여실제치지간적차치(IF치).결과 채용방차분석.결과 재파리관직경≤0.80mm시,각실험조IF치재-0.60～0.27mm지간,도위우-1.0～0.5mm지간,IF치여관내침윤적전해질무관(P＞0.05);이당파리관직경＞0.80mm시,각실험조IF치재-1.66～0.23 mm지간,강전해질(2.5%NaClO、17%EDTA)적침윤회사IF치증대(P＜0.05).결론 재일정근관직경내,Raypex5측량준학성불수근관내전해질적영향.당근첨공교대,근관내적전해질회영향기측량준학성.
Objective To investigate effect of different media environment on the accuracy of Raypex5 locator. Methods Use the agar model and glass capillaries to mimic root canals in vivo. Record the distance between the measured length and the real length of the capillaries as the IF value by using a No. 15stainless steel K file and Raypex5 under five measuring environments. Results The accuracy of measurement of Raypex5 was not influenced by root canal media in canals with normal diameter (≤0.80mm). In canals with large diameter (＞0.80 mm) and filled with either with 2.5% NaOCl or 17% EDTA, the measurement achieved with the Raypex5 may not be reliable. Conclusion The electrolytes in the tubules decreased the accuracy of Raypex5 when the tubule diameter was large.
