發(fā)布時(shí)間：2018-06-26 19:17

  本文選題：聚乳酸 + 可吸收根管樁膜　； 參考：《廣西醫(yī)科大學(xué)》2014年碩士論文

【摘要】：第一部分聚乳酸可吸收根管樁膜修復(fù)殘根的抗折力研究 目的：探討聚乳酸可吸收根管樁膜修復(fù)殘根后的抗折力。 方法：將24顆離體下頜前磨牙隨機(jī)分成3組，，每組8顆，分別采用聚乳酸可吸收根管樁、玻璃纖維樁及復(fù)合樹脂短樁進(jìn)行樹脂冠修復(fù)，采用電子萬能材料測(cè)驗(yàn)機(jī)對(duì)試件進(jìn)行抗折力測(cè)試，記錄試件抗折力值，觀察折裂模式。3組間抗折力比較采用單因素方差分析，兩兩比較采用LSD檢驗(yàn)，采用雙側(cè)檢驗(yàn)，檢驗(yàn)水準(zhǔn)α=0.05。 結(jié)果：LSD檢驗(yàn)結(jié)果顯示，聚乳酸可吸收根管樁組與玻璃纖維樁組的抗折力無統(tǒng)計(jì)學(xué)差異（P=0.530），均低于復(fù)合樹脂短樁組（P=0.004，0.016）。3組試件的折裂模式均為有利性牙折模式。 結(jié)論：聚乳酸可吸收根管樁膜修復(fù)殘根后的抗折力能滿足臨床需要。 第二部分聚乳酸可吸收根管樁膜修復(fù)嬰幼兒乳牙殘根的病例分析 目的：評(píng)價(jià)聚乳酸可吸收根管樁膜修復(fù)嬰幼兒乳牙殘根的效果。 方法：選擇7例嬰幼兒19顆乳上前牙殘根，在全身麻醉下對(duì)其進(jìn)行常規(guī)根管治療，采用聚乳酸可吸收根管樁膜輔助固位，光固化復(fù)合樹脂功能性修復(fù)乳上前牙形態(tài)。患兒每3個(gè)月復(fù)查，設(shè)計(jì)觀察至乳牙自然脫落。復(fù)查時(shí)檢查患兒口腔衛(wèi)生狀況、牙齦健康狀況及患牙修復(fù)體情況，評(píng)價(jià)聚乳酸可吸收樁膜結(jié)合復(fù)合樹脂修復(fù)乳牙殘根的效果；通過X線檢查，觀察聚乳酸樁膜與乳牙根吸收情況，以及繼承恒牙發(fā)育情況。 結(jié)果：聚乳酸可吸收根管樁膜修復(fù)嬰幼兒乳牙殘根12個(gè)月后，13顆修復(fù)體保存，保存率為68.42%；同期X線片復(fù)查顯示聚乳酸可吸收根管樁膜與牙根同步吸收，恒牙胚發(fā)育未見異常。 結(jié)論：聚乳酸可吸收根管樁膜修復(fù)嬰幼兒乳牙殘根的近期效果良好，遠(yuǎn)期效果需進(jìn)一步研究。
[Abstract]:Part I study on the flexural strength of Polylactic Acid Absorbable Root pile membrane for repairing residual Root objective: to study the flexural strength of Polylactic acid absorbable root canal post membrane for repairing residual root. Methods: 24 mandibular premolars in vitro were randomly divided into 3 groups, 8 in each group, and were repaired with resin crown with polylactic acid absorbable root canal post, glass fiber post and composite resin short post respectively. An electronic universal material tester was used to test the flexural strength of the specimens. The values of the flexural strength of the specimens were recorded. The analysis of variance (ANOVA) was used to observe the fracture mode of group .3, the LSD test was used for the two groups, and the double side test was used to test the leveling 偽 0.05. Results the results of WLSD test showed that there was no significant difference in the flexural strength between the Polylactic acid absorbable root canal pile group and the glass fiber pile group (P0. 530), which was lower than that in the composite resin short pile group (P0. 004 + 0. 016). Conclusion: Polylactic acid absorbable root canal post membrane can meet the clinical requirement after repairing residual root. The second part: the case analysis of residual root restoration of infant deciduous teeth with polylactic acid absorbable root canal post membrane objective: to evaluate the effect of polylactic acid absorbable root canal post membrane on the restoration of residual root of infant deciduous teeth. Methods: the residual root of 19 primary anterior teeth of 7 infants were treated with conventional root canal under general anesthesia. Polylactic acid absorbable root canal post membrane was used to assist retention and light curing composite resin was used to repair the morphology of primary anterior teeth. The children were reexamined every 3 months and the deciduous teeth were observed naturally. To evaluate the effect of polylactic acid absorbable pile membrane combined with composite resin in repairing residual root of deciduous teeth, the oral health status, gingival health status and restoration of affected teeth were examined during reexamination. To observe the absorption of polylactic acid post membrane and root of deciduous teeth and the development of inherited permanent teeth. Results: after 12 months of restoration of residual root of infant deciduous teeth with polylactic acid absorbable root canal post membrane, the preservation rate was 68.42, and X-ray examination showed that polylactic acid absorbable root canal post membrane was absorbed simultaneously with root, and the development of permanent tooth germ was not abnormal. Conclusion: Polylactic acid (PLA) can be used to repair residual root of deciduous teeth in infants.
【學(xué)位授予單位】：廣西醫(yī)科大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：R781.05

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 周春華;孫新華;黃洋;張穎麗;;乳前牙復(fù)合樹脂短樁冠的應(yīng)用[J];吉林大學(xué)學(xué)報(bào)(醫(yī)學(xué)版);2008年01期

2 翁巧鳳;VITAPEX糊劑在根尖誘導(dǎo)成形術(shù)中的療效觀察[J];華西口腔醫(yī)學(xué)雜志;2004年03期

3 王文敏;復(fù)合樹脂梅花形短樁修復(fù)乳上前牙殘冠的臨床觀察[J];口腔材料器械雜志;2000年04期

4 李杰;郭慶泰;;影響樁核選擇的相關(guān)因素[J];口腔材料器械雜志;2006年02期

5 李笑梅;生物可吸收性聚合物及其在口腔醫(yī)學(xué)中的應(yīng)用[J];口腔頜面外科雜志;1998年01期

6 冀X;王茜;鄒艷萍;軒昆;楊富生;;聚乳酸根管釘浸提液對(duì)人乳牙牙周膜細(xì)胞生物學(xué)性能的影響[J];臨床口腔醫(yī)學(xué)雜志;2009年09期

7 鄭小龍;張西正;李瑞欣;;骨科可吸收材料的降解和生物力學(xué)性能研究進(jìn)展[J];生物醫(yī)學(xué)工程與臨床;2006年01期

8 鄒艷萍;李石保;冀X;王茜;楊富生;軒昆;;聚乳酸根管樁浸提液對(duì)人牙囊細(xì)胞生物學(xué)性能的影響[J];牙體牙髓牙周病學(xué)雜志;2009年10期

9 王茜;冀X;鄒艷萍;樊淑梅;軒昆;楊富生;;聚乳酸生物材料與人乳牙牙髓干細(xì)胞的生物相容性研究[J];牙體牙髓牙周病學(xué)雜志;2009年11期

10 程祥榮;;非金屬樁及其臨床應(yīng)用[J];中華口腔醫(yī)學(xué)雜志;2006年06期

本文編號(hào)：2071126