發(fā)布時間：2018-06-28 23:54

  本文選題：磨牙 + 根管充填材料　； 參考：《中國組織工程研究》2016年25期

【摘要】：背景:目前臨床上對于樁道預(yù)備的時機并沒有達成一個共識,不過從一些研究可以推斷出,樁道預(yù)備時機對經(jīng)不同材料充填的根管會有一定影響。目的:比較即刻樁道預(yù)備和延遲樁道預(yù)備對經(jīng)不同材料充填根管冠方微滲漏的影響。方法:將48顆離體人單根單管前磨牙隨機分為6組,每組8顆:A1組以AH-plus糊劑+牙膠尖充填,行即刻樁道預(yù)備;A2組以礦物三氧化物凝聚體糊劑+牙膠尖充填,行即刻樁道預(yù)備;B1組以AH-plus糊劑+牙膠尖充填,充填1周后行延遲樁道預(yù)備;B2組以礦物三氧化物凝聚體糊劑+牙膠尖充填,充填1周后行延遲樁道預(yù)備;陰性對照組以AH-plus糊劑+牙膠尖充填;陽性對照組直接以牙膠尖充填。將6組標(biāo)本在模擬口腔環(huán)境中浸泡4周,通過加壓染料滲透法測量根管冠方微滲漏的長度。結(jié)果與結(jié)論:陰性對照組無滲漏,陽性對照組微滲漏顯著,涉及整個根管。A2組和B2組微滲漏值無差異(P0.05),A1組與A2組微滲漏值無差異(P0.05),A1組、B2組微滲漏值低于B1組(P0.05)。結(jié)果表明,延遲樁道預(yù)備對A H-plus糊劑填充根管微滲漏的影響較大。
[Abstract]:Background: there is no consensus on the timing of pile preparation in clinic, but it can be deduced from some studies that the timing of pile preparation will have a certain effect on the root canal filled with different materials. Objective: To compare the effect of immediate pile preparation and delayed pile preparation on the microleakage of root canal filling with different materials. 48 isolated single tube premolars were randomly divided into 6 groups, 8 groups in each group: group A1 was filled with AH-plus paste plus gum tip, and immediate piling was prepared. Group A2 was prepared with mineral three oxide paste and gum tip filling, and immediate post route preparation was carried out; group B1 was filled with AH-plus paste + gum tip, after filling 1 weeks after filling, and B2 group was prepared with mineral three oxygen. After filling 1 weeks, the negative control group was filled with AH-plus paste plus tooth glue tip, and the positive control group was filled directly with gum tip. The 6 groups were soaked in the simulated oral environment for 4 weeks, and the length of the root canal microleakage was measured by the pressure dye penetration method. Results and conclusions: negative and conclusion: negative The microleakage of the group.A2 and B2 group was not different (P0.05), and the microleakage value of group A1 and A2 group was no difference (P0.05), and the microleakage of group A1 and B2 group was lower than that of B1 group (P0.05). The results showed that the delay pile preparation had greater influence on the microleakage of the root canal filled with A H-plus paste.
【作者單位】： 四川西南醫(yī)科大學(xué)附屬口腔醫(yī)院口腔修復(fù)科及口頜面修復(fù)重建和再生實驗室;
【分類號】：R781.05

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