北京大学学报(医学版)
北京大學學報(醫學版)
북경대학학보(의학판)
JOURNAL OF BEIJING MEDICAL UNIVERSITY(HEALTH SCIENCES)
2015年
1期
124-128
,共5页
复合树脂类%牙黏合%牙应力分析
複閤樹脂類%牙黏閤%牙應力分析
복합수지류%아점합%아응력분석
Composite resins%Dental bonding%Dental stress analysis
目的:了解不同复合树脂间粘接后的强度。方法:选用甲基丙烯酸基复合树脂Clearfil APX( APX)及其配套粘接剂Clearfil SE Bond ( SE )和环氧基复合树脂Filtek P90( P90)及其配套粘接剂Filtek P90 System Adhesive (SA)。实验分为3组:(1)整块组,将树脂分层固化制成完整一体的树脂块;(2)直接充填组,将树脂固化成块后,表面打磨,再直接填充新树脂,光固化;(3)粘接组,树脂固化成块后打磨,涂布粘接剂,再填充新树脂,光固化。将上述树脂试样切成数条1 mm ×1 mm ×14 mm的样品,检测微拉伸强度,以One-Way ANOVA和LSD法对数据进行统计分析。结果:(1)整块组的微拉伸强度最高,APX为(81.11±1.79) MPa,P90为(82.07±1.42) MPa,差异无统计学意义(P>0.05)。(2)直接充填组中,APX-APX为(43.54±2.99) MPa,P90-APX为(42.74±2.49) MPa, APX-P90为(41.28±1.96) MPa,P90-P90为(42.39±3.24) MPa,各亚组间差异均无统计学意义(P>0.05)。(3)粘接组中,比较上层树脂的种类显示,用APX修复的微拉伸强度均显著高于用P90修复;比较底层树脂的种类显示,当上层树脂粘接相同种类的底层树脂时,其微拉伸强度要高于其对异种树脂的粘接(P<0.05);比较粘接剂的种类系显示,用SE粘接两树脂的微拉伸强度均显著高于用SA粘接。( 4 )微拉伸强度排序为:整块>SE粘接APX>SA粘接APX>SE粘接P90=直接充填>SA粘接P90。结论:底层树脂表面经打磨后,使用APX粘接修复的强度高于使用P90修复,SE粘接两树脂的强度高于SA,底层树脂的类型对粘接强度影响不大。
目的:瞭解不同複閤樹脂間粘接後的彊度。方法:選用甲基丙烯痠基複閤樹脂Clearfil APX( APX)及其配套粘接劑Clearfil SE Bond ( SE )和環氧基複閤樹脂Filtek P90( P90)及其配套粘接劑Filtek P90 System Adhesive (SA)。實驗分為3組:(1)整塊組,將樹脂分層固化製成完整一體的樹脂塊;(2)直接充填組,將樹脂固化成塊後,錶麵打磨,再直接填充新樹脂,光固化;(3)粘接組,樹脂固化成塊後打磨,塗佈粘接劑,再填充新樹脂,光固化。將上述樹脂試樣切成數條1 mm ×1 mm ×14 mm的樣品,檢測微拉伸彊度,以One-Way ANOVA和LSD法對數據進行統計分析。結果:(1)整塊組的微拉伸彊度最高,APX為(81.11±1.79) MPa,P90為(82.07±1.42) MPa,差異無統計學意義(P>0.05)。(2)直接充填組中,APX-APX為(43.54±2.99) MPa,P90-APX為(42.74±2.49) MPa, APX-P90為(41.28±1.96) MPa,P90-P90為(42.39±3.24) MPa,各亞組間差異均無統計學意義(P>0.05)。(3)粘接組中,比較上層樹脂的種類顯示,用APX脩複的微拉伸彊度均顯著高于用P90脩複;比較底層樹脂的種類顯示,噹上層樹脂粘接相同種類的底層樹脂時,其微拉伸彊度要高于其對異種樹脂的粘接(P<0.05);比較粘接劑的種類繫顯示,用SE粘接兩樹脂的微拉伸彊度均顯著高于用SA粘接。( 4 )微拉伸彊度排序為:整塊>SE粘接APX>SA粘接APX>SE粘接P90=直接充填>SA粘接P90。結論:底層樹脂錶麵經打磨後,使用APX粘接脩複的彊度高于使用P90脩複,SE粘接兩樹脂的彊度高于SA,底層樹脂的類型對粘接彊度影響不大。
목적:료해불동복합수지간점접후적강도。방법:선용갑기병희산기복합수지Clearfil APX( APX)급기배투점접제Clearfil SE Bond ( SE )화배양기복합수지Filtek P90( P90)급기배투점접제Filtek P90 System Adhesive (SA)。실험분위3조:(1)정괴조,장수지분층고화제성완정일체적수지괴;(2)직접충전조,장수지고화성괴후,표면타마,재직접전충신수지,광고화;(3)점접조,수지고화성괴후타마,도포점접제,재전충신수지,광고화。장상술수지시양절성수조1 mm ×1 mm ×14 mm적양품,검측미랍신강도,이One-Way ANOVA화LSD법대수거진행통계분석。결과:(1)정괴조적미랍신강도최고,APX위(81.11±1.79) MPa,P90위(82.07±1.42) MPa,차이무통계학의의(P>0.05)。(2)직접충전조중,APX-APX위(43.54±2.99) MPa,P90-APX위(42.74±2.49) MPa, APX-P90위(41.28±1.96) MPa,P90-P90위(42.39±3.24) MPa,각아조간차이균무통계학의의(P>0.05)。(3)점접조중,비교상층수지적충류현시,용APX수복적미랍신강도균현저고우용P90수복;비교저층수지적충류현시,당상층수지점접상동충류적저층수지시,기미랍신강도요고우기대이충수지적점접(P<0.05);비교점접제적충류계현시,용SE점접량수지적미랍신강도균현저고우용SA점접。( 4 )미랍신강도배서위:정괴>SE점접APX>SA점접APX>SE점접P90=직접충전>SA점접P90。결론:저층수지표면경타마후,사용APX점접수복적강도고우사용P90수복,SE점접량수지적강도고우SA,저층수지적류형대점접강도영향불대。
Objective: To investigate the bonding strength of different resin composites .Methods:Methacrylate-based resin APX and silorane-based resin composite P90 were chosen in this study , with their corresponding adhesives Clearfil SE Bond ( SE) and Filtek P90 System Adhesive ( SA) .The speci-mens were divided into three groups:(1) bulk group, filling each block with the same composite , then curing;(2) direct filling group, curing and polishing one composite , then filling a new composite direct-ly;( 3 ) bonding group , after curing and polishing one composite , conditioning the surface with adhe-sives, then filling a new composite.Cut each resin blocks into 1 mm ×1 mm ×14 mm each piece, detec-ting the microtensile strength , and analyzing by One-Way ANOVA and LSD .Results: ( 1 ) The micro-tensile strength of the bulk group was the highest .(2) In direct filling group, the microtensile strength of 4 subgroups showed no statistical significance with each other but lower than that of the bulk group .(3) In bonding group, the microtensile strength of repairing with APX was higher than that with P 90.When repairing with same composite , the microtensile strength was higher if the resin type of substrates was same with restorations than that was different .The microtensile strength of adhesives SE was higher than that of SA.(4) The sorting of the microtensile strength: bulk>SE bonding APX >SA bonding APX>SE bonding P90=direct filling>SA bonding P90.Conclusion:Retention force is higher when substrates are repaired with methacrylate-based resins and corresponding adhesives .Retention force is lower when repaired with silorane-based composites and corresponding adhesives .Types of the substrate composites show no influence on the bonding strength .