三種兒童牙膏對(duì)乳牙牙本質(zhì)小管封閉的對(duì)比研究
發(fā)布時(shí)間：2018-11-24 17:53
【摘要】：目的:制備乳牙牙本質(zhì)敏感模型,研究三種兒童牙膏對(duì)該模型下乳牙牙本質(zhì)小管封閉的作用,對(duì)比分析三種兒童牙膏的抗敏效果。方法:選取20顆健康的、牙冠完整的第二乳磨牙,隨機(jī)分成4組,即空白對(duì)照組(未做任何處理)和三個(gè)實(shí)驗(yàn)牙膏組(分別用奧樂(lè)V兒童護(hù)齒劑,奧敏清兒童護(hù)齒劑,涑爽兒童護(hù)齒牙膏進(jìn)行處理)。首先,每組隨機(jī)選5顆牙齒,把它們分別用硬組織切割機(jī)切割成1 mm厚,3 mm×3 mm大小的牙本質(zhì)片,再采用37%的磷酸處理15秒之后,制備敏感牙本質(zhì)模盤。然后,用三種兒童牙膏配制好的牙膏懸濁液進(jìn)行為期一周的刷牙實(shí)驗(yàn),每天8次,每次3 min(相當(dāng)于每天刷牙兩次,每次三分鐘,連續(xù)使用四周)。最后,應(yīng)用圖像分析軟件進(jìn)行掃描電子顯微鏡(SEM)圖片處理,計(jì)算牙本質(zhì)小管的堵塞率和滲透深度,并比較三種兒童牙膏對(duì)乳牙牙本質(zhì)小管封閉的作用。結(jié)果:SEM下觀察到,三種實(shí)驗(yàn)的兒童牙膏均具有堵塞乳牙牙本質(zhì)小管的作用,與空白對(duì)照組相比,三個(gè)實(shí)驗(yàn)牙膏組在單位面積的封閉牙本質(zhì)小管數(shù)目和單位長(zhǎng)度的滲透深度均表現(xiàn)出統(tǒng)計(jì)學(xué)差異(P0.05)。其中,奧敏清兒童護(hù)齒劑組牙本質(zhì)小管的堵塞率為89.91%,滲透深度為29.6μm;其次涑爽兒童護(hù)齒牙膏組,牙本質(zhì)堵塞率為21.52%,滲透深度為22.2μm;再次是奧樂(lè)V兒童護(hù)齒劑組,牙本質(zhì)堵塞率為12.86%,滲透深度為6.8μm。單位面積均為2000μm2。結(jié)論:三種實(shí)驗(yàn)的兒童牙膏均具有封閉乳牙牙本質(zhì)小管的作用(P0.05)。其中,奧敏清兒童護(hù)齒劑封閉牙本質(zhì)小管的效果最好,即抗敏效果最佳,其次是涑爽兒童護(hù)齒牙膏,再次是奧樂(lè)V兒童護(hù)齒劑。
[Abstract]:Objective: to study the effect of three kinds of children toothpaste on the closure of dentine tubules under the model, and to compare and analyze the anti-sensitive effect of three kinds of children toothpaste. Methods: twenty healthy second primary molars with complete crown were randomly divided into four groups: blank control group (without any treatment) and three experimental toothpaste groups (using Orle V child tooth protector and Aomin Qing child tooth protector respectively). Treat the toothpaste for children. At first, 5 teeth were randomly selected in each group. The teeth were cut into 1 mm thick and 3 mm 脳 3 mm dentin plates by hard tissue cutting machine. After treated with 37% phosphoric acid for 15 seconds, the sensitive dentin molds were prepared. Then, three kinds of toothpaste suspensions were used to brush teeth eight times a day for 3 min (equivalent to brushing teeth twice a day for three minutes, using continuously for four weeks). Finally, the image analysis software was used to process the (SEM) images of the dentine tubules by scanning electron microscope (SEM), and the clogging rate and osmotic depth of the dentine tubules were calculated, and the effects of the three kinds of toothpaste on the closure of the dentine tubules of deciduous teeth were compared. Results: SEM showed that all three kinds of toothpaste had the effect of blocking dentin tubules of deciduous teeth, compared with the control group. The three experimental toothpaste groups showed statistical differences in the number of closed dentine tubules and the penetration depth per unit length of dentine tubules per unit area (P0.05). Among them, the plugging rate of dentine tubules was 89.91, the osmotic depth was 29.6 渭 m, and the osmotic depth was 22.2 渭 m in the children's dentin protecting toothpaste group, and the plugging rate of dentin was 21.52 渭 m, and the osmotic depth was 22.2 渭 m in the Aominqing children's dental protector group. In the third group, the dentin clogging rate was 12.86 and the osmotic depth was 6.8 渭 m. The unit area is 2000 渭 m ~ 2. Conclusion: all three kinds of toothpaste have the effect of blocking dentin tubules of deciduous teeth (P 0.05). Among them, Aomin Qing children's tooth protector has the best effect of sealing dentin tubules, that is, anti-sensitive effect is the best, the second is Shuang Children's toothpaste, and the third is Orle V child's tooth protector.
【學(xué)位授予單位】：佳木斯大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：R781.2
[Abstract]:Objective: to study the effect of three kinds of children toothpaste on the closure of dentine tubules under the model, and to compare and analyze the anti-sensitive effect of three kinds of children toothpaste. Methods: twenty healthy second primary molars with complete crown were randomly divided into four groups: blank control group (without any treatment) and three experimental toothpaste groups (using Orle V child tooth protector and Aomin Qing child tooth protector respectively). Treat the toothpaste for children. At first, 5 teeth were randomly selected in each group. The teeth were cut into 1 mm thick and 3 mm 脳 3 mm dentin plates by hard tissue cutting machine. After treated with 37% phosphoric acid for 15 seconds, the sensitive dentin molds were prepared. Then, three kinds of toothpaste suspensions were used to brush teeth eight times a day for 3 min (equivalent to brushing teeth twice a day for three minutes, using continuously for four weeks). Finally, the image analysis software was used to process the (SEM) images of the dentine tubules by scanning electron microscope (SEM), and the clogging rate and osmotic depth of the dentine tubules were calculated, and the effects of the three kinds of toothpaste on the closure of the dentine tubules of deciduous teeth were compared. Results: SEM showed that all three kinds of toothpaste had the effect of blocking dentin tubules of deciduous teeth, compared with the control group. The three experimental toothpaste groups showed statistical differences in the number of closed dentine tubules and the penetration depth per unit length of dentine tubules per unit area (P0.05). Among them, the plugging rate of dentine tubules was 89.91, the osmotic depth was 29.6 渭 m, and the osmotic depth was 22.2 渭 m in the children's dentin protecting toothpaste group, and the plugging rate of dentin was 21.52 渭 m, and the osmotic depth was 22.2 渭 m in the Aominqing children's dental protector group. In the third group, the dentin clogging rate was 12.86 and the osmotic depth was 6.8 渭 m. The unit area is 2000 渭 m ~ 2. Conclusion: all three kinds of toothpaste have the effect of blocking dentin tubules of deciduous teeth (P 0.05). Among them, Aomin Qing children's tooth protector has the best effect of sealing dentin tubules, that is, anti-sensitive effect is the best, the second is Shuang Children's toothpaste, and the third is Orle V child's tooth protector.
【學(xué)位授予單位】：佳木斯大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：R781.2
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