全科口腔医学电子杂志
全科口腔醫學電子雜誌
전과구강의학전자잡지
2015年
4期
111-114
,共4页
付敏%张大风%郑铁丽%吕德馨%许雷%黄玲燕%卢玲娇%王思钱
付敏%張大風%鄭鐵麗%呂德馨%許雷%黃玲燕%盧玲嬌%王思錢
부민%장대풍%정철려%려덕형%허뢰%황령연%로령교%왕사전
氧化锆陶瓷%抗弯强度%纳米二氧化硅溶胶
氧化鋯陶瓷%抗彎彊度%納米二氧化硅溶膠
양화고도자%항만강도%납미이양화규용효
Zirconia ceramic%Three point Bending Strength%Nano silica sol
目的:探讨采用溶胶-凝胶技术在氧化锆表面制备薄纳米二氧化硅涂层对氧化锆基底抗弯强度的影响,从而指导氧化锆全瓷冠的制作。方法将软质氧化锆试件切割成38 mm×10 mm×2.5 mm的长方体标块40片,将其分为四组,各10件,分别采用4种处理方式。A组(氧化锆空白组)仅经过1450℃结晶处理;B组(氧化锆渗透后结晶组)先经30%纳米二氧化硅溶胶渗透后,再经1450℃结晶处理;C组(氧化锆结晶后渗透组)先经1450℃结晶后,然后用30%纳米二氧化硅溶胶渗透后再经1450℃热处理;D组(氧化锆表面涂刷组)表面涂布纳米二氧化硅溶胶后,1450℃结晶处理。然后对各组试件进行抗弯强度测试。结果4组抗弯强度分别为:A组(895.22±145.7)MPa、B组(695.83±136.97)MPa、C组(1109.08±155.46)MPa、D组(896.02±206.27)MPa,单因素方差分析结果A组与D组比较,差异无统计学意义(P>0.05),B组与其他三组及C组与其他三组相比较,差异有统计学意义(P<0.05)。结论(1)结晶致密前氧化锆基底经纳米二氧化硅溶胶渗透后,其抗弯强度降低,但其强度仍能满足临床单颗冠桥的要求;(2)结晶致密前氧化锆基底经纳米二氧化硅溶胶表面涂刷后,其抗弯强度不会受到影响,与空白组一致;(3)结晶致密后氧化锆基底经纳米二氧化硅溶胶渗透后再结晶,其抗弯强度增加。
目的:探討採用溶膠-凝膠技術在氧化鋯錶麵製備薄納米二氧化硅塗層對氧化鋯基底抗彎彊度的影響,從而指導氧化鋯全瓷冠的製作。方法將軟質氧化鋯試件切割成38 mm×10 mm×2.5 mm的長方體標塊40片,將其分為四組,各10件,分彆採用4種處理方式。A組(氧化鋯空白組)僅經過1450℃結晶處理;B組(氧化鋯滲透後結晶組)先經30%納米二氧化硅溶膠滲透後,再經1450℃結晶處理;C組(氧化鋯結晶後滲透組)先經1450℃結晶後,然後用30%納米二氧化硅溶膠滲透後再經1450℃熱處理;D組(氧化鋯錶麵塗刷組)錶麵塗佈納米二氧化硅溶膠後,1450℃結晶處理。然後對各組試件進行抗彎彊度測試。結果4組抗彎彊度分彆為:A組(895.22±145.7)MPa、B組(695.83±136.97)MPa、C組(1109.08±155.46)MPa、D組(896.02±206.27)MPa,單因素方差分析結果A組與D組比較,差異無統計學意義(P>0.05),B組與其他三組及C組與其他三組相比較,差異有統計學意義(P<0.05)。結論(1)結晶緻密前氧化鋯基底經納米二氧化硅溶膠滲透後,其抗彎彊度降低,但其彊度仍能滿足臨床單顆冠橋的要求;(2)結晶緻密前氧化鋯基底經納米二氧化硅溶膠錶麵塗刷後,其抗彎彊度不會受到影響,與空白組一緻;(3)結晶緻密後氧化鋯基底經納米二氧化硅溶膠滲透後再結晶,其抗彎彊度增加。
목적:탐토채용용효-응효기술재양화고표면제비박납미이양화규도층대양화고기저항만강도적영향,종이지도양화고전자관적제작。방법장연질양화고시건절할성38 mm×10 mm×2.5 mm적장방체표괴40편,장기분위사조,각10건,분별채용4충처리방식。A조(양화고공백조)부경과1450℃결정처리;B조(양화고삼투후결정조)선경30%납미이양화규용효삼투후,재경1450℃결정처리;C조(양화고결정후삼투조)선경1450℃결정후,연후용30%납미이양화규용효삼투후재경1450℃열처리;D조(양화고표면도쇄조)표면도포납미이양화규용효후,1450℃결정처리。연후대각조시건진행항만강도측시。결과4조항만강도분별위:A조(895.22±145.7)MPa、B조(695.83±136.97)MPa、C조(1109.08±155.46)MPa、D조(896.02±206.27)MPa,단인소방차분석결과A조여D조비교,차이무통계학의의(P>0.05),B조여기타삼조급C조여기타삼조상비교,차이유통계학의의(P<0.05)。결론(1)결정치밀전양화고기저경납미이양화규용효삼투후,기항만강도강저,단기강도잉능만족림상단과관교적요구;(2)결정치밀전양화고기저경납미이양화규용효표면도쇄후,기항만강도불회수도영향,여공백조일치;(3)결정치밀후양화고기저경납미이양화규용효삼투후재결정,기항만강도증가。
ObjectiveTo investigate the affection of bending strength by using sol-gel technique to produce thin layer nano silicon dioxide on zirconia ceramic surface.methodsSoft zirconia specimen cutting into 38 mm x 10 mm x 2.5 mm rectangle standard piece of 40, it can be divided into four groups, each 10, respectively adopt four kinds of processing mode. Group A (zirconia blank group), only after 1450℃crystallization processing; Group B (zirconia penetration crystallization group) after the first 30% of nano silica sol infiltration, then through 1450℃ crystallization processing; Group (group C after zirconia crystal permeability) ifrst after 1450℃ crystallization, and then use 30% of nano silica sol penetration then through 1450℃ heat treatment; Group D (zirconium oxide surface coating group) coated on the surface of nano silica sol, 1450℃ crystallization process. Then each specimen for bending strength test.ResultsFour groups of bending strength are: group A (895.22±145.7)MPa, group B (695.83±136.97)MPa, (1109.08±155.46)MPa group C, D group (896.02±206.27)MPa, the single factor analysis of variance results in group A and group D, there was no statistically signiifcant difference (P>0.05), group B and group C and the other three groups compared with the other three groups, the difference was statistically signiifcant (P<0.05).Conclusions (1) Using nano silicon sol gel inifltration on presintered zirconia to make thin layer of nano silicon dioxide can decline the three point bending strength of zircconia ceramic. (2) Using nano silicon sol gel coating on presintered zirconia to make thin layer of nano silicon dioxide has no inlfuence of the three point bending strength of zircconia ceramic. (3) Using nano silicon sol gel coating on sintered zirconia to make thin layer of nano silicon dioxideand sintered again can improve the three point bending strength of zircconia ceramic.