中华口腔医学杂志
中華口腔醫學雜誌
중화구강의학잡지
Chinese Journal of Stomatology
2012年
z1期
186-190
,共5页
根管充填材料%微渗漏%液压装置
根管充填材料%微滲漏%液壓裝置
근관충전재료%미삼루%액압장치
Root canal filling materials%Microleakage%Fluid transport model
目的 比较临床常用的5种根管封闭剂的微渗漏量,以期为临床医师选择应用提供参考.方法 制作并检测液压微渗漏装置,将100颗单根双尖牙根管预备后分为5组,每组20颗,分别采用ZOE(A组)、Sealapex(B组)、AH Plus(C组)、Sealite(D组)、Cortisomol(E组)5种根管封闭剂,均使用冷侧压方法进行根管充填,于48 h及3个月后分别用微渗漏测量装置测量微渗漏量,采用单因素方差分析对各组结果进行比较(α=0.05).结果 根充后48 h和3个月不同封闭剂组间微渗漏量差异均有统计学意义(P＜0.01),根充后48hB组微渗漏量[(5.8±1.1)μl/3 h]显著大于其他4组(P＜0.01),根充后3个月B组的微渗漏量减少至(2.5±0.5) μl/3h,与根充后48 h相比差异有统计学意义(P＜0.01).C组根充后48 h[(0.8±0.2) μl/3 h]和3个月微渗漏量[(1.4±0.6)μl/3 h)]均最小,根充后48 h与A、B组相比差异均有统计学意义(P＜0.05),3个月时与A组相比差异有统计学意义(P＜0.05).结论 AH Plus封闭剂在体外实验中体积稳定、微渗漏少、封闭性能良好,临床选择封闭剂时可以参考.
目的 比較臨床常用的5種根管封閉劑的微滲漏量,以期為臨床醫師選擇應用提供參攷.方法 製作併檢測液壓微滲漏裝置,將100顆單根雙尖牙根管預備後分為5組,每組20顆,分彆採用ZOE(A組)、Sealapex(B組)、AH Plus(C組)、Sealite(D組)、Cortisomol(E組)5種根管封閉劑,均使用冷側壓方法進行根管充填,于48 h及3箇月後分彆用微滲漏測量裝置測量微滲漏量,採用單因素方差分析對各組結果進行比較(α=0.05).結果 根充後48 h和3箇月不同封閉劑組間微滲漏量差異均有統計學意義(P＜0.01),根充後48hB組微滲漏量[(5.8±1.1)μl/3 h]顯著大于其他4組(P＜0.01),根充後3箇月B組的微滲漏量減少至(2.5±0.5) μl/3h,與根充後48 h相比差異有統計學意義(P＜0.01).C組根充後48 h[(0.8±0.2) μl/3 h]和3箇月微滲漏量[(1.4±0.6)μl/3 h)]均最小,根充後48 h與A、B組相比差異均有統計學意義(P＜0.05),3箇月時與A組相比差異有統計學意義(P＜0.05).結論 AH Plus封閉劑在體外實驗中體積穩定、微滲漏少、封閉性能良好,臨床選擇封閉劑時可以參攷.
목적 비교림상상용적5충근관봉폐제적미삼루량,이기위림상의사선택응용제공삼고.방법 제작병검측액압미삼루장치,장100과단근쌍첨아근관예비후분위5조,매조20과,분별채용ZOE(A조)、Sealapex(B조)、AH Plus(C조)、Sealite(D조)、Cortisomol(E조)5충근관봉폐제,균사용랭측압방법진행근관충전,우48 h급3개월후분별용미삼루측량장치측량미삼루량,채용단인소방차분석대각조결과진행비교(α=0.05).결과 근충후48 h화3개월불동봉폐제조간미삼루량차이균유통계학의의(P＜0.01),근충후48hB조미삼루량[(5.8±1.1)μl/3 h]현저대우기타4조(P＜0.01),근충후3개월B조적미삼루량감소지(2.5±0.5) μl/3h,여근충후48 h상비차이유통계학의의(P＜0.01).C조근충후48 h[(0.8±0.2) μl/3 h]화3개월미삼루량[(1.4±0.6)μl/3 h)]균최소,근충후48 h여A、B조상비차이균유통계학의의(P＜0.05),3개월시여A조상비차이유통계학의의(P＜0.05).결론 AH Plus봉폐제재체외실험중체적은정、미삼루소、봉폐성능량호,림상선택봉폐제시가이삼고.
Objective To establish a fluid transport model for quantitative analysis of endodontic microleakage and to analyze endodontic microleakage of 5 different sealers.Methods Convective transport of water from the coronal to the apical end of obturated root canals was determined by the movement of an air bubble in a capillary glass tube connected to the apex of the experimental root section under a headspace pressure of 2 × 105 MPa.Water transport through existing voids in the canals could be measured reproducibly in this way.One hundred extracted single-root premolars,after root canal preparation,were divided into 5 groups with 20 teeth in each group.Obturation were madc using cold gutta percha lateral condensation technique.Five different sealers,which were ZOE,Sealapex,AH Plus,Sealite and Cortisomol,were used separately.The microleakage along roots obturated was determined in 48 hours and 3 months by the modified fluid transport model and compared using.Results Tbe model is nondestructive and can be used as sequential quantitative assessment of endodontic microleakage.After 48 hours of obturation,microleakage of group Sealapex [(5.8 ± 1.1) μl/3 h] was significantly more than those of AH Plus and ZOE sealer.However,after 3 months,leakage of group Sealapex decreased significantly [(2.5 ± 0.5) μl/3 h].At both 48 hours [(0.8 ± 0.2) μl/3 h] and 3 months [(1.4 ± 0.6) μl/3 h] test points,group AH Plus produced the smallest fluid transport which indicated satisfactory sealing ability (P ＜ 0.05).Conclutions AH Plus sealer appeared to be dimensionally stable in vitro.
