摘要
目的评价自粘接型和普通型树脂粘接剂与玻璃陶瓷粘接的耐久性，以期为树脂粘接剂的临床应用提供参考。方法按照ISO4049国际标准，对粘接剂A（自粘接型，G-CEM）和粘接剂B（普通型，Linkmax HV）各5个试件在6周内的最大吸水值和溶解值以及其光照射后0．5、24h和6周的表面显微硬度进行测量。对64个陶瓷试件分别使用硅烷偶联剂A（Monobond S）、B（Clearfil Ceramic Primer）和C（GC Ceramic Primer）进行表面处理或不进行表面处理，再分别使用粘接剂A和B粘接，并于冷热循环前和冷热循环30000次后测量试件粘接强度。结果粘接剂A的吸水值和溶解值分别为（79．62±5．63）和（4．78±3．33）μg／min^3，明显高于粘接剂B[分别为（35．03±3．33）和（0．00±0．00）μg／mm^3]。两种粘接剂的表面显微硬度在光照射后24h达到最大值。冷热循环30000次后未行表面处理和硅烷偶联剂A、B、C处理后的陶瓷试件与粘接剂A的粘接强度分别为（0．00±0．00）、（2．86±3．25）、（12．75±1．55）和（11．98±2．35）MPa，与粘接剂B对应试件粘接强度[分别为（0．00±0．00）、（5．15±5．20）、（10．94±3．30）和（14．18±3．13）MPa]的差异无统计学意义。结论在使用硅烷偶联剂的前提下，自粘接型树脂粘接剂可以代替普通型树脂粘接剂进行玻璃陶瓷粘接。
Objective To evaluate the bond durability of glass ceramic to self-adhesive and conventional resin cements. Methods Maximum water sorption and solubility of two resin cements （A： self-adhesive type, G-CEM; B： conventional type, Linkmax HV） were measured during 6 week water storage. And their surface Knoop hardness number was measured at 0. 5, 24 h and 6 week after irradiation. Sixty-four glass ceramic samples were or were not silanized with one of the three silane coupling agents （ A ： Monobond S; B： Clearfil Ceramic Primer; C： GC Ceramic Primer）, and then cemented with two resin cements. The micro-bond strength betweenthe two cements and glass ceramic were measured at baseline and after 30 000 thermal cycle. Results Cement A had higher water sorption [ （79. 62 ± 5.63） μg/mm^3 ] and solubility[ （4.78 ±3.33） μg/mm^3 ] than cement B[ （35.03±3.33） μg/mm^3, （0. 00 ±0. 00） μg/mm^3 ] Cement A and B could achieve maximal surface hardness at 24 h after irradiation, and this was maintained during 6 week water storage. After 30 000 thermal cycle, the micro-bond strength between unsilanized glass ceramic and cement A or B was （ 0. 00 ± 0. 00 ） MPa, and those between cement A and silanized glass ceramic with silane coupling agent A, B and C, were （ 2. 86± 3.25 ） , （ 12. 75± 1.55 ） and （ 11.98± 2.35） MPa respectively [for cement B, the data was （5.15 ±5.20） , （10.94 ±3.30） and （14. 18 ± 3.13） MPa]. No significant diffrence was found between the micro-bond strength of cement A and that of cement B with glass ceramic. Conclusions Serf-adhesive resin cement can achieve similar bond durability to glass ceramic as conventional resin cement does.
出处
《中华口腔医学杂志》
CAS
CSCD
北大核心
2010年第1期44-48,共5页
Chinese Journal of Stomatology
