本文選題：義齒 + 氟化物　； 參考：《中國組織工程研究》2017年30期

【摘要】：背景:患者長期戴用彈性義齒修復(fù)體后,會(huì)增加齲病和牙周病、局部義齒性口炎等疾病的發(fā)病率。在材料中添加氟化物可預(yù)防和降低上述疾病的發(fā)病率,目前國內(nèi)外在口腔材料中添加氟化物防齲的研究較多,但尚無在彈性義齒材料中添加單氟磷酸鈉并進(jìn)行相關(guān)力學(xué)性能測試研究的相關(guān)報(bào)道。目的:評價(jià)不同含氟比例彈性義齒材料的力學(xué)性能。方法:取彈性義齒材料,分別制成長80 mm、寬51 mm、厚1 mm,長20 mm、寬5 mm、厚5 mm,長25 mm、寬2 mm、厚2 mm尺寸,每種尺寸60個(gè)試件,每組尺寸內(nèi)按照添加單氟磷酸鈉的質(zhì)量比再分為6組,單氟磷酸鈉質(zhì)量比分別為0(對照組)、3%、5%、10%、15%、20%,檢測試件的扯斷強(qiáng)度、彎曲強(qiáng)度及邵氏硬度。結(jié)果與結(jié)論:隨著彈性義齒材料中單氟磷酸鈉質(zhì)量比例的增加,材料的扯斷強(qiáng)度、彎曲強(qiáng)度及邵氏硬度值逐漸降低,當(dāng)彈性義齒材料中單氟磷酸鈉質(zhì)量比例增加至10%時(shí),材料的扯斷強(qiáng)度、彎曲強(qiáng)度及邵氏硬度與對照組相比雖有所降低,但差異無顯著性意義(P0.05);當(dāng)彈性義齒材料中單氟磷酸鈉質(zhì)量比例達(dá)到15%時(shí),材料的扯斷強(qiáng)度、彎曲強(qiáng)度均低于對照組(P0.05);當(dāng)彈性義齒材料中單氟磷酸鈉質(zhì)量比例達(dá)到20%時(shí),材料的扯斷強(qiáng)度、彎曲強(qiáng)度、邵氏硬度均低于對照組(P0.05)。結(jié)果表明,單氟磷酸鈉含量可影響彈性義齒材料的力學(xué)指標(biāo),10%是最佳加氟比例,高于此給氟量可改變彈性義齒材料的力學(xué)性能。
[Abstract]:Background: the incidence of dental caries and periodontitis, partial denture stomatitis and other diseases will be increased after long-term elastic denture repair. Adding fluoride to the materials can prevent and reduce the incidence of the above diseases. At present, there are many researches on the prevention of caries by adding fluoride to dental materials at home and abroad. However, there is no related report on adding sodium monofluorophosphate to elastic denture materials and testing their mechanical properties. Objective: to evaluate the mechanical properties of different fluorine proportion elastic denture materials. Methods: the materials of elastic denture were made of 80 mm in length, 51 mm in width, 1 mm in thickness, 20 mm in length, 5 mm in width, 5 mm in thickness, 25 mm in length, 2 mm in width and 2 mm in thickness. According to the mass ratio of sodium monofluorophosphate, each group was divided into 6 groups. The mass ratio of sodium monofluorophosphate was 0 (control group). The tensile strength, bending strength and Shao's hardness were measured. Results and conclusion: with the increase of the mass ratio of sodium monofluorophosphate in elastic denture, the tensile strength, bending strength and Shao's hardness of the material decreased gradually, and when the mass ratio of sodium monofluorophosphate in elastic denture material increased to 10%, The tensile strength, flexural strength and Shao's hardness of the materials were lower than those of the control group, but the difference was not significant (P 0.05), when the mass ratio of sodium monofluorophosphate in the elastic denture material was 15%, the tensile strength of the material was higher than that of the control group. When the mass ratio of sodium monofluorophosphate in elastic denture was 20%, the tensile strength, bending strength and Shao's hardness of the material were lower than that of the control group. The results show that the content of sodium monofluorophosphate can affect the mechanical index of elastic denture material, 10% is the best fluorine addition ratio, and the higher fluorine content can change the mechanical properties of elastic denture material.
【作者單位】： 桂林醫(yī)學(xué)院第二附屬醫(yī)院;桂林理工大學(xué)材料科學(xué)與工程學(xué)院;桂林市口腔醫(yī)院;
【基金】：廣西科學(xué)研究與技術(shù)開發(fā)計(jì)劃項(xiàng)目資助(桂科攻14124004-1-10) 廣西桂林市科技攻關(guān)計(jì)劃項(xiàng)目資助(20140120-8-1,2016012709)~~
【分類號(hào)】：R783.1

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