本文選題：根管充填材料　切入點(diǎn)：微縫隙　出處：《武漢大學(xué)學(xué)報(bào)(醫(yī)學(xué)版)》2014年01期

【摘要】：目的:評(píng)價(jià)3種根管充填材料在不同斷面的根管密封性能,分析其影響因素。方法:收集新鮮拔除的完整單根管下頜第一前磨牙60顆,隨即分為A、B、C 3組,每組20顆牙,分別用氧化鋅丁香油糊劑、Vitapex糊劑、AH-Plus糊劑加牙膠尖以側(cè)壓法進(jìn)行根管充填。然后在距根尖狹窄2,4,6,8mm處垂直于牙體長(zhǎng)軸切開(kāi)牙體,掃描電鏡觀察不同材料與根管壁之間的結(jié)合狀態(tài)并測(cè)量根管壁與根管糊劑間微縫隙寬度。結(jié)果:掃描電鏡下不同根管封閉劑與根管壁均觀察到空隙存在,但AH-Plus組可見(jiàn)材料呈均質(zhì)狀分布,與管壁粘結(jié)最為緊密。在距根尖2mm處AH-Plus組的微縫隙寬度(2.25±7.63)μm明顯低于氧化鋅丁香油糊劑(9.56±3.12)μm和Vitapex糊劑(8.81±1.55)μm(P0.05);在距根尖4,6,8mm處,AH-Plus組與氧化鋅丁香油組、Vitapex組的微縫隙寬度無(wú)顯著差異(P0.05)。結(jié)論:AH-Plus糊劑對(duì)于根管充填特別是根尖有很好的密合性,能有效防止根尖微滲漏現(xiàn)象的發(fā)生。
[Abstract]:Objective: To evaluate the 3 kinds of root canal filling material sealing tube in different section of the root, analyze its influencing factors. Methods: the complete collection of single tube freshly extracted mandibular first premolars 60 teeth were divided into A, B, C 3 groups, each group of 20 teeth, respectively, with Zinc Oxide engenol paste, Vitapex paste. AH-Plus paste plus gutta percha to lateral root canal filling method. Then in the apical narrow 2,4,6,8mm perpendicular to the long axis of the tooth and tooth, scanning electron microscope and measuring the binding state between the wall of root canal and root canal between the micro gap width. Different materials and root canal results: scanning electron microscope the root canal sealer and root canal wall were observed in group AH-Plus but the gap exists, the visible material with a homogeneous distribution, and the wall sticking most closely. In the micro gap at the apical 2mm AH-Plus width group (2.25 + 7.63) m was significantly lower than that of Zinc Oxide engenol paste (9.56 + 3. 12) m and (8.81 + 1.55) Vitapex paste m (P0.05); in the apical 4,6,8mm, AH-Plus group and Zinc Oxide group, clove oil, there was no significant difference between Vitapex group and micro gap width (P0.05). Conclusion: AH-Plus paste for root canal filling especially the apical sealing performance of the good. Can effectively prevent the apical leakage phenomenon.

【作者單位】： 荊楚理工學(xué)院醫(yī)學(xué)院;湖北省潛江市中心醫(yī)院口腔科;武漢大學(xué)中南醫(yī)院口腔醫(yī)學(xué)中心;湖北省荊門(mén)市康復(fù)醫(yī)院口腔科;
【基金】：湖北省荊楚理工學(xué)院校級(jí)課題(編號(hào):ZR201013)
【分類(lèi)號(hào)】：R781.05

【參考文獻(xiàn)】

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本文編號(hào)：1700239