两种藻酸盐印模材料调拌方法效果的镜下比较
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摘要
目的调拌藻酸盐印模材料过程中产生的气泡数量和大小是模型准确性的重要影响因素之一。本研究探讨了机器调拌和手动调拌藻酸盐印模材料产生气泡的数量及大小。方法将机器调拌藻酸盐印模材料分块切割14块设为实验组,将另一部分手调藻酸盐印模材料分块切割14块设为对照组。两组样本逐个放置在电子显微镜下观察,对单位面积内气泡数量进行计数,并对气泡大小进行测量。结果实验组在藻酸盐调拌过程中形成的气泡数量[(4.79±1.42)个/cm~2]明显少于对照组[(13.36±1.59)个/cm~2](P<0.05),而实验组形成的气泡直径[(31.5±6.8)μm]也明显小于对照组[(205.0±9.7)μm](P<0.05)。结论机调藻酸盐印模材料的质量明显好于手动调拌的藻酸盐印模材料。
Objective The quantity and size of air bubble are one of the important factors of impression accuracy during mixing alginate impression materials. The purpose of this study is to make comparison in the quantity and size of air bubble after machine and manual mixing under the microscope. Method Alginate im pression materials were mixed by machine and cut into 14 masses as a test group. Other same materials by manual and into 14 masses as a control group. The masses were observed under the electron microscope and counted and measured for quantity and size of air bubble. The data of two groups were analyzed statistically by SPSS 22.0. Result The quantity(4.79±1.42) and size [(13.36±1.59)μm] of air bubble in test group was significantly less in control group[(31.5±6.8) and size(205.0±9.7) μm](P<0.05). Conclusion The mixing quality of alginate impression materials from machine was better than manual.
Objective The quantity and size of air bubble are one of the important factors of impression accuracy during mixing alginate impression materials. The purpose of this study is to make comparison in the quantity and size of air bubble after machine and manual mixing under the microscope. Method Alginate im pression materials were mixed by machine and cut into 14 masses as a test group. Other same materials by manual and into 14 masses as a control group. The masses were observed under the electron microscope and counted and measured for quantity and size of air bubble. The data of two groups were analyzed statistically by SPSS 22.0. Result The quantity(4.79±1.42) and size [(13.36±1.59)μm] of air bubble in test group was significantly less in control group[(31.5±6.8) and size(205.0±9.7) μm](P<0.05). Conclusion The mixing quality of alginate impression materials from machine was better than manual.
引文
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[11]曹勇,何灏逾,李昊,等.3种方式调拌Jeltrate藻酸盐印模材料的气泡含量及物理性能比较[J].国际口腔医学杂志,2017,36(1):24-27.
[12]Kurtulus K,Tüfekci K.Empirical study of alginate impression materials by customized proportioning system[J].J Adv Prosthodont,2016,8(5):372-379.
[13]Ji-Man P.Comparative analysis on reproducibility among 5intraoral scanners:sectional analysis according to restoration type and preparation outline form[J].J Adv Prosthodont,2016,8(5):354-362.
[14]Jiang T,Lee SM,Hou Y,et al.Evaluation of digital dental models obtained from dental cone-beam computed tomography scan of alginate impressions[J].Korean J Orthod,2016,46(3):129-136.
[15]Yuan FS,Sun YC,Wang Y,et al.Accuracy evaluation of a new three-dimensional reproduction method of edentulous dental casts,and wax occlusion rims with jaw relation[J].Int J Oral Sci,2013,5(3):155-161.
[2]宋玉萱,梁瑞芬,刘锐.调拌方法对藻酸盐印模材料操作时间固化时间的影响[J].实用口腔医学杂志,2017,33(1):119-122.
[3]袁琼红,丘红真,梁美莲,等.全自动藻酸盐搅拌仪的应用效果观察[J].广东牙病防治,2007,15(3):127-129.
[4]Donovan TE,Chee WW.A review of contemporary impression materials and techniques[J].Dent Clin North Am,2004,48(2):vivii,445-470.
[5]Vogel AB,Kilic F,Schmidt F,et al.Dimensional accuracy of jaw scans performed on alginate impressions or stone models:a practice-oriented study[J].J Orofac Orthop,2015,76(4):351-365.
[6]Cesur MG,Omurlu IK,Ozer T.Evaluation of digital model accuracy and time-dependent deformation of alginate impressions[J].Niger J Clin Pract,2017,20(9):1175-1181.
[7]Rohanian A,Ommati Shabestari G,Zeighami S,et al.Effect of storage time of extended-pour and conventional alginate impressions on dimensional accuracy of casts[J].J Dent(Tehran),2014,11(6):655-664.
[8]Inoue S,Kawara M,Iida T,et al.Influences of differences in tray design and impression material on impression pressure at edentulous mandible[J].J Oral Sci,2017,59(4):505-510.
[9]Hyde TP,Craddock HL,Gray JC,et al.A randomised controlled trial of complete denture impression materials[J].J Dent,2014,42(8):895-901.
[10]Farzin M,Panahandeh H.Effect of pouring time and storage temperature on dimensional stability of casts made from irreversible hydrocolloid[J].J Dent(Tehran),2010,7(4):179-184.
[11]曹勇,何灏逾,李昊,等.3种方式调拌Jeltrate藻酸盐印模材料的气泡含量及物理性能比较[J].国际口腔医学杂志,2017,36(1):24-27.
[12]Kurtulus K,Tüfekci K.Empirical study of alginate impression materials by customized proportioning system[J].J Adv Prosthodont,2016,8(5):372-379.
[13]Ji-Man P.Comparative analysis on reproducibility among 5intraoral scanners:sectional analysis according to restoration type and preparation outline form[J].J Adv Prosthodont,2016,8(5):354-362.
[14]Jiang T,Lee SM,Hou Y,et al.Evaluation of digital dental models obtained from dental cone-beam computed tomography scan of alginate impressions[J].Korean J Orthod,2016,46(3):129-136.
[15]Yuan FS,Sun YC,Wang Y,et al.Accuracy evaluation of a new three-dimensional reproduction method of edentulous dental casts,and wax occlusion rims with jaw relation[J].Int J Oral Sci,2013,5(3):155-161.