中国基层医药
中國基層醫藥
중국기층의약
CHINESE JOURNAL OF PRIMARY MEDICINE AND PHARMACY
2015年
9期
1373-1375
,共3页
纤维桩%桩核冠修复%双重固化树脂%光固化复合树脂%抗折强度
纖維樁%樁覈冠脩複%雙重固化樹脂%光固化複閤樹脂%抗摺彊度
섬유장%장핵관수복%쌍중고화수지%광고화복합수지%항절강도
Fiber post%Post core crown restoration%Dual-cured resin%Light curing composite resin%Bending strength
目的 比较不同树脂核材料对纤维桩核修复后整体抗折强度的影响.方法 选择离体下颌第一前磨牙60颗,分别用3M光固化复合树脂P60、Medental双重固化树脂、Pulpdent双重固化树脂联合Viva碳纤维加强玻璃纤维桩行桩核修复,缓慢加载力同时观察离体牙受力的变化情况.结果 3M光固化复合树脂的抗折强度为(80.182±9.512)N,Medental双重固化树脂的抗折强度为(87.805±11.649)N,Pulpdent双重固化树脂的抗折强度为(85.458±10.845)N.组间比较,3M光固化复合树脂的抗折强度低于Medental双重固化树脂和Pulpdent双重固化树脂的抗折强度(t=5.758、3.084,均P＜0.05),Medental双重固化树脂和Pulpdent双重固化树脂的抗折强度差异无统计学意义(t=0.718,P＞0.05).3M光固化复合树脂组桩核断裂后伴有大面积的堆核树脂碎裂脱落.结论 采用双重固化树脂行纤维桩-树脂核修复大面积牙体硬组织缺损抗折强度优于高填料光固化复合树脂,且不易出现核碎裂脱落,是更理想的桩核修复核材料.
目的 比較不同樹脂覈材料對纖維樁覈脩複後整體抗摺彊度的影響.方法 選擇離體下頜第一前磨牙60顆,分彆用3M光固化複閤樹脂P60、Medental雙重固化樹脂、Pulpdent雙重固化樹脂聯閤Viva碳纖維加彊玻璃纖維樁行樁覈脩複,緩慢加載力同時觀察離體牙受力的變化情況.結果 3M光固化複閤樹脂的抗摺彊度為(80.182±9.512)N,Medental雙重固化樹脂的抗摺彊度為(87.805±11.649)N,Pulpdent雙重固化樹脂的抗摺彊度為(85.458±10.845)N.組間比較,3M光固化複閤樹脂的抗摺彊度低于Medental雙重固化樹脂和Pulpdent雙重固化樹脂的抗摺彊度(t=5.758、3.084,均P＜0.05),Medental雙重固化樹脂和Pulpdent雙重固化樹脂的抗摺彊度差異無統計學意義(t=0.718,P＞0.05).3M光固化複閤樹脂組樁覈斷裂後伴有大麵積的堆覈樹脂碎裂脫落.結論 採用雙重固化樹脂行纖維樁-樹脂覈脩複大麵積牙體硬組織缺損抗摺彊度優于高填料光固化複閤樹脂,且不易齣現覈碎裂脫落,是更理想的樁覈脩複覈材料.
목적 비교불동수지핵재료대섬유장핵수복후정체항절강도적영향.방법 선택리체하합제일전마아60과,분별용3M광고화복합수지P60、Medental쌍중고화수지、Pulpdent쌍중고화수지연합Viva탄섬유가강파리섬유장행장핵수복,완만가재력동시관찰리체아수력적변화정황.결과 3M광고화복합수지적항절강도위(80.182±9.512)N,Medental쌍중고화수지적항절강도위(87.805±11.649)N,Pulpdent쌍중고화수지적항절강도위(85.458±10.845)N.조간비교,3M광고화복합수지적항절강도저우Medental쌍중고화수지화Pulpdent쌍중고화수지적항절강도(t=5.758、3.084,균P＜0.05),Medental쌍중고화수지화Pulpdent쌍중고화수지적항절강도차이무통계학의의(t=0.718,P＞0.05).3M광고화복합수지조장핵단렬후반유대면적적퇴핵수지쇄렬탈락.결론 채용쌍중고화수지행섬유장-수지핵수복대면적아체경조직결손항절강도우우고전료광고화복합수지,차불역출현핵쇄렬탈락,시경이상적장핵수복핵재료.
Objective To compare the influence of resin core on overall bending strength of fiber post-core restoration.Methods 60 mandibular first premolar extracted because of orthodontic treatment was selected.3M light -cured composite resin P60,medental dual-cured resin,pulpdent dual-cured resin combined with viva carbon fiber reinforced glass fiber post were applied.The changes of teeth in vitro were observed when strength was given on.Results The flexural strength of 3M light-cured composite resin was (80.182 ±9.512)N,Medental dual-cured resin was (87.805 ± 11.649) N,Pulpdent dual-cured resin was (85.458 ± 10.845) N.The flexural strength of 3 M light-cured composite resin was lower than that of medental dual-cured resin and pulpdent dual-cured resin (t =5.758,3.084,both P ＜ 0.05).There was no statistical differences of flexural strength between medental dual-cured resin and pulpdent dual-cured resin(t =0.718,P ＞ 0.05).There was large area of resin broken off after 3M light-cured composite resin core fracture.There was only fracture of medental dual-cured resin core and pulpdent dual-cured resin core.Conclusion The bending strength of dual-cured resin is better than that of highly filled light curing composite resin in large tooth hard tissue defect restoration with fiber post-core,and core broken off is rare.Dual-cured resin is better post-core materials.
