本文選題：窩溝封閉 + 微滲漏��； 參考：《河北醫(yī)科大學(xué)》2015年碩士論文

【摘要】：目的:本研究旨在觀察使用窩溝封閉劑及3M納米復(fù)合流體樹脂進(jìn)行窩溝封閉時(shí),不同的酸蝕方法對邊緣微滲漏的影響。方法:1應(yīng)用窩溝封閉技術(shù)將正畸減數(shù)拔牙的新鮮拔除的48顆上頜雙尖牙,每組8顆,隨機(jī)分為六組,即:第1組:35%Gluma磷酸酸蝕劑+3M窩溝封閉劑組;第2組:35%Gluma磷酸酸蝕劑+3M納米復(fù)合流體樹脂組;第3組:S3BONDTM第七代自酸蝕粘結(jié)劑+3M窩溝封閉劑組;第4組:S3BONDTM第七代自酸蝕粘結(jié)劑+3M納米復(fù)合流體樹脂組;第5組:15%Hcl凝膠+3M窩溝封閉劑組;第6組:15%Hcl凝膠+3M納米復(fù)合流體樹脂組。并將六組標(biāo)本行窩溝封閉術(shù)。2應(yīng)用熱循環(huán)處理六組標(biāo)本,六組標(biāo)本均置于37℃恒溫水浴中24h,再將標(biāo)本分別浸入5℃、55℃水浴中進(jìn)行500次的循環(huán)周期,每個(gè)溫度停留30s。3各組隨機(jī)選取的6個(gè)標(biāo)本應(yīng)用亞甲藍(lán)染色法,用體視顯微鏡分別觀察六組標(biāo)本的微滲漏情況。4各組余下的2個(gè)標(biāo)本用掃描電鏡分別觀察六組標(biāo)本的邊緣密閉性。結(jié)果:1微滲漏情況1.1使用窩溝封閉劑的標(biāo)本中,各組微滲漏情況:1組低于3組,5組低于3組,其差異均有統(tǒng)計(jì)學(xué)意義(P0.05);5組低于1組,但兩組間無統(tǒng)計(jì)學(xué)差異(P0.05)。1.2使用流體樹脂的標(biāo)本中,各組微滲漏情況:6組低于2組,2組低于4組,其差異均有統(tǒng)計(jì)學(xué)差異(P0.05)。1.3使用35%磷酸Gluma磷酸凝膠酸蝕后,1、2組間微滲漏情況相近,無統(tǒng)計(jì)學(xué)差異(P0.05);使用S3BONDTM第七代自酸蝕粘結(jié)劑酸蝕后,3組低于4組,其差異有統(tǒng)計(jì)學(xué)差異(P0.05);使用15%Hcl凝膠酸蝕后,6組低于5組,其差異有統(tǒng)計(jì)學(xué)差異(P0.05)。1.4使用不同酸蝕方法和不同封閉材料的標(biāo)本間交叉比較,各組微滲漏情況:1組低于4組,6組低于1組,2組低于3組,5組低于2組,6組低于3組,5組低于4組,其差異均有統(tǒng)計(jì)學(xué)差異(P0.05)。2掃描電鏡觀察2.1低倍鏡下(×40)觀察標(biāo)本全貌:1組窩溝封閉劑有少量微空泡,完全滲入到了窩溝底部,與牙釉質(zhì)之間的結(jié)合面連續(xù)有裂紋。高倍鏡下(×1000)觀察測量結(jié)果:1組窩溝封閉劑與牙釉質(zhì)之間結(jié)合面微縫隙寬度約為6.25~15μm。2.2低倍鏡下(×40)觀察標(biāo)本全貌:2組流體樹脂不甚均勻,完全滲入到了窩溝底部,與牙釉質(zhì)之間的結(jié)合面連續(xù)無裂紋,接近溝底部有一裂紋,窩溝封閉劑與牙釉質(zhì)完全結(jié)合在一起。高倍鏡下(×1000)觀察測量結(jié)果:2組流體樹脂與牙釉質(zhì)之間結(jié)合面微縫隙寬度約為3.15~20.25μm。2.3低倍鏡下(×40)觀察標(biāo)本全貌:3組窩溝封閉劑在完全滲入到了窩溝底部,與牙釉質(zhì)之間的結(jié)合面連續(xù)有裂紋。高倍鏡下(×1000)觀察測量結(jié)果:3組窩溝封閉劑與牙釉質(zhì)之間結(jié)合面微縫隙寬度約為2.1~20.25μm。2.4低倍鏡下(×40)觀察標(biāo)本全貌:4組流體樹脂均勻、完整、無空泡,未滲入到了窩溝底部,與牙釉質(zhì)之間的結(jié)合面有一連續(xù)裂溝。高倍鏡下(×1000)觀察測量結(jié)果:4組流體樹脂與牙釉質(zhì)之間結(jié)合面微縫隙寬度約為12.5~75μm。2.5低倍鏡下(×40)觀察標(biāo)本全貌:5窩溝封閉劑均勻、完整、無空泡,完全滲入到了窩溝底部,與牙釉質(zhì)之間的結(jié)合面有少量細(xì)小裂紋。高倍鏡下(×1000)觀察測量結(jié)果:5組窩溝封閉劑與牙釉質(zhì)之間結(jié)合面微縫隙寬度約為2.1~4.5μm。2.6低倍鏡下(×40)觀察標(biāo)本全貌:6組流體樹脂均勻、完整,與牙釉質(zhì)之間的結(jié)合面連續(xù)無裂紋,窩溝封閉劑與牙釉質(zhì)完全結(jié)合在一起。高倍鏡下(×1000)觀察測量結(jié)果:6組流體樹脂與牙釉質(zhì)之間結(jié)合面微縫隙寬度約為0.25~4.5μm。結(jié)論:1 15%鹽酸凝膠預(yù)處理后,3M納米復(fù)合流體樹脂行窩溝封閉的邊緣微滲漏最小。2 S3BONDTM第七代自酸蝕粘結(jié)劑預(yù)處理后,3M納米復(fù)合流體樹脂行窩溝封閉邊緣微滲漏情況最顯著。
[Abstract]:Objective: the purpose of this study was to observe the effect of different etching methods on marginal microleakage when using fissure sealants and 3M nanocomposite fluid resin for pit and fissure sealing. 1 the 48 maxillary canines extracted by orthodontic extraction were divided into six groups randomly, that is, the first group: the first group: 35%Gluma phosphoric acid. Acid etching agent +3M pit sealant group; second group: 35%Gluma phosphate acid etching agent +3M nanocomposite fluid resin group; third groups: S3BONDTM seventh generation self etching binder +3M pit sealant group; fourth group: S3BONDTM seventh generation self etching binder +3M nanocomposite fluid resin group; fifth group: 15%Hcl gel +3M pit sealant group; sixth group: 15%Hcl gel +3M. The six groups of specimens were treated with six groups of six groups of specimens. The six groups were placed at 37 C in constant temperature water bath for 24h, and then the specimens were immersed in 5 centigrade and 500 cycles in 55 centigrade water bath, and 6 specimens randomly selected at each temperature 30s.3 were used with methylene blue staining method. The microleakage of the six groups of the six groups was observed by the stereograph. The remaining 2 specimens of each group were examined by scanning electron microscope to observe the marginal tightness of the six groups. Results: in the 1 microleakage cases, the microleakage of the 1 groups was lower than the 3 groups in the 1 groups and the 5 groups were lower than the 3 groups, and the difference was statistically significant (P0.05); 5 groups were low. In the 1 group, but there was no statistical difference between the two groups (P0.05).1.2 using fluid resin specimens, microleakage in each group: 6 groups were lower than 2 groups, 2 groups were lower than 4 groups, the difference was statistically significant (P0.05).1.3 using 35% phosphoric acid Gluma gel acid etching, 1,2 group microleakage was similar, no statistical difference (P0.05); S3BONDTM seventh generation self. After acid etching, the 3 groups were less than 4 groups, and the difference was statistically different (P0.05). After the use of 15%Hcl gel etching, the 6 groups were lower than 5 groups, and the difference was statistically different (P0.05).1.4 using different etching methods and different sealing materials intersecting comparison, the 1 groups were lower than 4 groups, 6 groups were lower than 1 groups, 2 groups were lower 3, 5 group. Lower than 2 groups, 6 groups were lower than 3 groups, 5 groups were lower than 4 groups, the difference was statistically significant (P0.05).2 scanning electron microscope observation under 2.1 low magnification (x 40) observation specimen full picture: 1 group of fissure sealants with a small number of microbubbles, completely infiltrated into the bottom of the pit, and the joint surface between the enamel and continuous crack. High magnification (x 1000) observation results: 1 sets of fossa The width of the junction surface between the trench sealant and the enamel was about 6.25~15 mu m.2.2 low magnification (x 40) to observe the whole appearance of the specimen: the 2 groups of fluid resins were not very homogeneous, completely infiltrated into the bottom of the pit, and the surface of the enamel was continuous without cracks, close to the bottom of the ditch, and the fissure sealant was completely combined with the enamel. Observation results under double microscope (x 1000): the width of the joint surface between the 2 groups of fluid resin and tooth enamel was about 3.15~20.25 mu m.2.3 low magnification (x 40) to observe the whole appearance of the specimen: 3 groups of fissure sealants were completely infiltrated into the bottom of the pit and groove, and the surface of the enamel was connected to the crack. The measurement results were observed under the high magnification (x 1000): 3 sets of fossa The width of the gap between the trench sealant and the enamel was about 2.1~20.25 mu m.2.4 low magnification (x 40). The 4 groups of fluid resins were homogeneous, complete, no vacuoles, did not infiltrate into the bottom of the fossa, and there was a continuous fissure between the enamel and the enamel. The results were observed by high magnification (x 1000): 4 groups of fluid resin and enamel The width of the joint surface micro gap was about 12.5~75 mu m.2.5 low magnification mirror (x 40) to observe the whole appearance of the specimen: 5 fissure sealant was uniform, complete, without vacuoles, completely infiltrated into the bottom of the pit, and there was a small amount of fine cracks in the surface of the enamel. The results were observed under high magnification (x 1000): the binding surface between the 5 groups of fissure sealants and the enamel The width of the gap was about 2.1~4.5 mu m.2.6 low magnification (x 40) to observe the whole specimen appearance: the 6 groups of fluid resin were uniform and complete, and the bonding surface between the enamel and the enamel was continuous without cracks. The fissure sealant was completely combined with the enamel. The measurement results were observed under high magnification (x 1000): the width of the micro gap between the 6 fluid resin and the enamel was about 0.. 25~4.5 micron M. conclusion: after pretreatment of 115% hydrochloric hydrochloric gel, 3M nano composite fluid resin is pretreated with pit and ditch closed marginal microleakage minimum.2 S3BONDTM seventh generation self etching binder, and the microleakage of 3M nanocomposite fluid resin on the margin of pit and groove closed edge is the most significant.

【學(xué)位授予單位】：河北醫(yī)科大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：R783

【共引文獻(xiàn)】

相關(guān)期刊論文 前2條

1 吳正一;王晶;鄧舒蔓;;第一恒磨牙應(yīng)用不同窩溝封閉材料臨床效果觀察[J];醫(yī)藥論壇雜志;2014年10期

2 史艷芬;劉偉偉;劉雪;;年輕恒牙應(yīng)用不同窩溝封閉材料臨床觀察[J];濟(jì)寧醫(yī)學(xué)院學(xué)報(bào);2015年02期

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本文編號：1842845