本文關(guān)鍵詞：不同表面處理全解剖式氧化鋯全瓷冠磨耗性能的對(duì)比研究　出處：《廣西醫(yī)科大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 拋光 上釉 噴砂 磨耗 表面處理 氧化鋯

【摘要】：目的比較經(jīng)拋光、上釉及噴砂三種不同表面處理方法處理的全解剖式氧化鋯全瓷冠二體磨耗實(shí)驗(yàn)后的體量損失、表面磨損情況以及副配的天然牙磨損情況。評(píng)價(jià)三種不同表面處理方法對(duì)全解剖式氧化鋯全瓷冠磨耗性能的影響,指導(dǎo)臨床選擇更好的氧化鋯全瓷冠的表面處理方式以降低修復(fù)體及對(duì)頜天然牙磨損程度。方法1.3Shape掃描儀掃描右下第一磨牙的預(yù)備體石膏模型(按《口腔修復(fù)學(xué)》第六版教材中牙體預(yù)備標(biāo)牙合面預(yù)備1.5-2.0mm,頰、舌側(cè)預(yù)備1.5mm,鄰面預(yù)備1.5mm,由廣西醫(yī)科大學(xué)附屬口腔醫(yī)院口腔修復(fù)科醫(yī)師預(yù)備),使用CAM雕刻機(jī)切割制作15個(gè)聚甲基丙烯酸甲酯(PMMA)預(yù)備體代型。2.3Shape掃描儀掃描前一步中制作的右下第一磨牙PMMA預(yù)備體代型,使用CAD\CAM系統(tǒng)制作15個(gè)全解剖式氧化鋯全瓷冠,平均分為3個(gè)實(shí)驗(yàn)組,每組5個(gè)試件,3個(gè)組分別用拋光、上釉、噴砂三種方式處理試件表面,粘接于PMMA預(yù)備體代型上。3.選取硬度對(duì)比無差異(P0.05,α=0.05)的新鮮拔除的上頜第一前磨牙15顆,取相對(duì)無磨耗的非功能頰尖作為對(duì)磨物,包埋于自凝樹脂內(nèi),制作直徑為6.2mm,高度為10mm圓柱形底座,并隨機(jī)分為3組,每組5個(gè)試件,拋光20s后與氧化鋯全瓷冠試件對(duì)應(yīng)作為副配。4.將配對(duì)好的3組試樣置于UMT-3微摩擦磨損儀上,在人工唾液環(huán)境中進(jìn)行二體磨耗實(shí)驗(yàn),實(shí)驗(yàn)頻率為0.2Hz,加載力10N,實(shí)驗(yàn)時(shí)長(zhǎng)為1小時(shí)。5.實(shí)驗(yàn)前后每個(gè)樣本進(jìn)行質(zhì)量測(cè)量,同時(shí)使用磨耗儀匹配的軟件記錄每個(gè)樣本的動(dòng)態(tài)摩擦系數(shù)平均值、觀察動(dòng)態(tài)摩擦系數(shù)變化,將3個(gè)實(shí)驗(yàn)組的結(jié)果進(jìn)行對(duì)比分析。6.從3個(gè)實(shí)驗(yàn)組中各選取1個(gè)樣本使用掃描電子顯微鏡(SEM)觀察磨損表面形態(tài)。結(jié)果1.三組不同表面處理全解剖式氧化鋯全瓷冠磨耗實(shí)驗(yàn)后損失質(zhì)量之間有統(tǒng)計(jì)學(xué)差異(P0.05),拋光組與上釉組、噴砂組與上釉組結(jié)果均有顯著統(tǒng)計(jì)學(xué)差異(P0.01),拋光組與噴砂組結(jié)果有統(tǒng)計(jì)學(xué)差異(P0.05),三組全解剖式氧化鋯全瓷冠磨耗量由小到大依次是:噴砂組、拋光組、上釉組。2.三組副配天然牙磨耗實(shí)驗(yàn)后損失質(zhì)量無統(tǒng)計(jì)學(xué)差異(P0.05),三組副配天然牙磨耗量由小到大依次是:拋光組、噴砂組、上釉組。3.拋光組與上釉組、拋光組與噴砂組摩擦系數(shù)間有統(tǒng)計(jì)學(xué)差異(P0.05),上釉組與噴砂組摩擦系數(shù)間無統(tǒng)計(jì)學(xué)差異(P0.05),拋光組、上釉組、噴砂組摩擦系數(shù)由小到大依次是:拋光組、噴砂組、上釉組。4.拋光組摩擦系數(shù)保持一個(gè)較穩(wěn)定的變化水平,無增大趨勢(shì)。上釉組起始階段摩擦系數(shù)變化保持穩(wěn)定水平,中后期摩擦系數(shù)振幅增大,變化劇烈。噴砂組摩擦系數(shù)一直保持穩(wěn)定的振幅,隨時(shí)間延長(zhǎng)摩擦系數(shù)呈緩慢增加趨勢(shì)。5.掃描電鏡結(jié)果顯示拋光組樣品表面磨耗區(qū)域可見有犁鉤狀磨痕,局部可見微裂紋,有磨屑剝脫、粘著;未磨耗區(qū)域可見因拋光形成的犁鉤狀淺劃痕。上釉組樣品表面磨耗區(qū)域凹凸不平,磨耗面局部有銳利的邊緣,散在大量顆粒狀磨屑;未磨耗區(qū)域表面光滑,僅有少量雜質(zhì)附著。噴砂組表面磨耗區(qū)域可見犁鉤狀淺劃痕,少量磨屑附著,無明顯孔隙;未磨耗區(qū)域表面不平整,有許多因噴砂去除細(xì)小顆粒后形成的孔隙。結(jié)論表面拋光處理比上釉和噴砂處理更利于防止全解剖式氧化鋯全瓷冠自身及對(duì)頜天然牙的過度磨耗。三種表面處理方式中,拋光是作為全解剖式氧化鋯全瓷冠表面處理的最佳方式。
[Abstract]:Objective to compare the body loss, surface wear and the wearing of the natural teeth of the total anatomic zirconia all ceramic crowns treated by three different surface treatments including polishing, glazing and sandblasting. After two wear experiments, Objective to evaluate the effect of three different surface treatments on the wear performance of the total anatomic zirconia all ceramic crowns, and to guide the clinical selection of better surface treatment methods of zirconia all ceramic crowns, so as to reduce the wear degree of the restorations and the natural teeth of the jaws. Preparation method of gypsum model 1.3Shape scanning right first molar (by "prosthodontics" sixth edition of tooth preparation standard occlusal surface preparation 1.5-2.0mm, buccal and lingual preparation 1.5mm, proximal reduction by oral 1.5mm, Affiliated Stomatological Hospital of Guangxi Medical University Department of Prosthodontics, physician preparation) using CAM engraving machine cutting production 15 poly (PMMA) preparation generation type. 2.3Shape scanner in the previous step to make the right first molar tooth type PMMA generation, making all 15 anatomical zirconia crowns using the CAD\CAM system, the 3 experimental group for the average, each of the 5 specimens, 3 groups were treated with the specimen surface polishing, sandblasting, glazed three PMMA, bonded to the tooth generation type. The selection of 3. hardness compared to no difference (P0.05, alpha =0.05) of freshly extracted maxillary first premolars 15 teeth, the relative abrasion of non functional buccal tip as the grinding material, embedded in self curing resin production, diameter 6.2mm, height 10mm of a cylindrical base, and randomly divided into 3 groups, each group 5 specimens, polished 20s and zirconia crowns specimens corresponding with as vice. 4., the 3 pairs of paired samples were placed on the UMT-3 Micro Friction and wear tester, and the two body wear test was conducted in artificial saliva. The experimental frequency was 0.2Hz, the loading force was 10N, and the experimental time was 1 hours. 5. before and after the experiment, the quality of each sample was measured. At the same time, the average value of the dynamic friction coefficient and the dynamic friction coefficient of each sample were recorded by the software matching the attrition instrument. The results of the 3 experimental groups were compared and analyzed. 6. from 3 experimental groups, 1 samples were selected to observe the wear surface morphology by scanning electron microscope (SEM). Results 1. of three groups of different surface treatment between anatomical type zirconia crowns wear mass loss after the experiment there were significant differences (P0.05), glazed polished group and group, group and group of glazed sandblasting results there was a statistically significant difference (P0.01), polished group and sandblasting group results have statistical difference between the three groups (P0.05). The anatomy of zirconia wear crowns from less are: sandblasting and polishing and glazing group group group. 2. the three groups had no significant difference with vice natural tooth wear mass loss after the experiment (P0.05), three deputy group with natural tooth wear in order: polishing group, sandblasting group, glazed group. 3. polished group and glazed polished group and sandblasting group group, there were significant differences between the friction coefficient (P0.05), glazed group and sandblasting group had no significant difference between the friction coefficient (P0.05), polishing group, glazed sandblasting group group, the friction coefficient in order is: polishing group, sandblasting group, glazed group. 4. the friction coefficient of the polishing group keeps a stable level of change, and there is no increasing trend. The change of the friction coefficient at the beginning of the glazing group remains stable, and the amplitude of the friction coefficient increases in the middle and late stages, and the change is intense. The friction coefficient of sand blasting group keeps steady amplitude, and the friction coefficient increases slowly with time. 5. scanning electron microscope results showed that there were plow hook wear marks in the surface wear area of the polishing group, partial micro cracks, debris stripped and adhered, and the scratched shallow scratches formed in the unworn area. The surface wear area of the glazing group is uneven, and the worn surface has sharp edges, scattered on a large number of grainy debris, and the area of the worn area is smooth, with only a small amount of impurities attached. The surface wear area of the sandblasting group is visible with plow hook shallow scratches, a small amount of debris attached, and no obvious pores. The surface of the unworn area is uneven, and there are many pores formed after sand blasting to remove fine particles. Conclusion the surface polishing treatment is more beneficial to prevent the excessive wear of the completely anatomic zirconia porcelain crown and the natural teeth. Of the three surface treatments, polishing is the best way to treat the surface of all anatomic zirconia ceramic crowns.
【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】：2017
【分類號(hào)】：R783.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 陳濟(jì)芬;丁宏;;拋光及上釉對(duì)氧化鋯全冠與釉質(zhì)間磨耗性能的影響[J];國(guó)際口腔醫(yī)學(xué)雜志;2016年02期

2 姚上貴;孫海鵬;;高度拋光無釉瓷氧化鋯全瓷冠的臨床效果研究[J];廣東牙病防治;2014年07期

3 張凱;吳鳳鳴;光寒冰;;拋光對(duì)2種全瓷材料表面粗糙度及磨耗性能的影響[J];口腔醫(yī)學(xué);2014年01期

4 忻賢貞;陳潔;魏斌;;磨耗實(shí)驗(yàn)中標(biāo)準(zhǔn)化牙釉質(zhì)試件的制備[J];上海交通大學(xué)學(xué)報(bào)(醫(yī)學(xué)版);2013年05期

5 周珊羽;王琳琳;胡琛;邵龍泉;;齒科氧化鋯陶瓷的研究進(jìn)展[J];中華臨床醫(yī)師雜志(電子版);2012年19期

6 劉亦洪;王琳;司文捷;陶永青;邱巖;包亦望;;不同表面處理方法對(duì)氧化鋯與天然牙磨損性能的影響[J];稀有金屬材料與工程;2011年S1期

7 李偉;蔣麗;廖運(yùn)茂;;牙科氧化鋯全瓷材料[J];中國(guó)實(shí)用口腔科雜志;2010年08期

8 劉晶瑩;郭長(zhǎng)軍;孟令強(qiáng);李旭華;;四種陶瓷材料與牙釉質(zhì)磨耗性能的研究[J];武警醫(yī)學(xué)院學(xué)報(bào);2009年07期

9 嚴(yán)洪海;黃海蓉;章卓鳴;楊金林;;6種不同修復(fù)材料與天然牙牙釉質(zhì)摩擦、磨耗性能的比較[J];上海口腔醫(yī)學(xué);2007年03期

10 趙鑫;陳吉華;李旬科;沈麗娟;;不同磨拋方法對(duì)烤瓷表面粗糙度的影響[J];中國(guó)美容醫(yī)學(xué);2007年02期

，

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