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引用本文:刘崇武,吴春芳,陈超,丁林灿,卢友光. ����ѭ�������ָ�����֬��󿹼���ǿ��Ӱ����о�[J]. 中国实用口腔科杂志, 2010, 3(10): 604-606
作者姓名:刘崇武  吴春芳  陈超  丁林灿  卢友光
作者单位:????????????????????a.??????b.?????????? 350002
摘    要:
??Objective    Evaluate the shear bond strength of different hot and cold cycles on the different brands of composite resin. Methods    Select 60 molars extracted due to periodontal diseases from April 2009 to March 2010 from Department of Periodontics??Stomatological Hospital??Fujian Medical University. According to the principle of the simple random selection??the 60 permanent molars were divided into two groups??Solitaire2 group??30 teeth??by Solitaire2 composite resin bonding??and Filtek P60 group??30 teeth??by Filtek P60 composite resin. Each tooth using buccal??lingual??mesial??distal four side in the corresponding tooth crown??produce diameter of 2 mm??3 mm high cylinder at 1??3 of the formation of crown??each of 40 surface samples??a total of 240 specimens. Each group was divided into 3 groups respectively??with composite resin Solitaire2 and Filtek P60??after 0??100 and 500 thermal cycles ??5?? and 55?棩??observe the shear bond strength of samples of each group??calculate the shear strength. And the type of specimen fracture section was observed under stereo microscope. Results    For two brands of composite resin??thermal cycles between 0 and 100 times??the difference of  the shear strength was not statistically significant??P > 0.05????for 500 hot and cold cycles??shear bond strength of Filtek P60 resin was greater than that of Solitaire2 resin ??P < 0.05??. The resin bond fracture mode of each group had no significant difference??P > 0.05??. Conclusion    The hot and cold cycles of composite resin material has impact on shear bond strength. When 500 thermal cycles??shear bond strength of Solitaire2 composite resin is significantly lower than Filtek P60.

关 键 词:Solitaire2???????  Filtek P60???????  ???????  ?????????  
收稿时间:2010-08-05
修稿时间:2010-09-21

The influence of psychro-thermal cycles on the shear bond strength of different brands of composite resin
LIU Chong-wu,WU Chun-fang,CHEN Chao,DING Lin-can,LU You-guang. The influence of psychro-thermal cycles on the shear bond strength of different brands of composite resin[J]. chinese Journal of Practical Stomatology, 2010, 3(10): 604-606
Authors:LIU Chong-wu  WU Chun-fang  CHEN Chao  DING Lin-can  LU You-guang
Affiliation:. (School of Stomatology, Fujian Medical University, Fuzhou 350002, China)
Abstract:
Objective Evaluate the shear bond strength of different hot and cold cycles on the different brands of composite resin. Methods Select 60 molars extracted due to periodontal diseases from April 2009 to March 2010 from Department of Periodontics, Stomatological Hospital, Fujian Medical University. According to the principle of the simple random selection, the 60 permanent molars were divided into two groups: Solitaire2 group(30 teeth)by Solitaire2 composite resin bonding, and Fihek P60 group (30 teeth)by Fihek P60 composite resin. Each tooth using buccal, lingual, mesial, distal four side in the corresponding tooth crown, produce diameter of 2 ram, 3 mm high cylinder at 1 / 3 of the formation of crown, each of 40 surface samples, a total of 240 specimens. Each group was divided into 3 groups respectively, with composite resin Solitaire2 and Filtek P60, after 0,100 and 500 thermal cycles (5% and 55% ), observe the shear bond strength of samples of each group, calculate the shear strength. And the type of specimen fracture section was ob- served under stereo microscope. Results For two brands of composite resin, thermal cycles between 0 and 100 times, the difference of the shear strength was not statistically significant (P 〉 0.05) ;for 500 hot and cold cycles, shear bond / strength of Fihek P60 resin was greater than that of Solitaire2 resin (P 〈 0.05). The resin bond fracture mode of each group had no significant difference(P 〉 0.05). Conclusion The hot and cold cycles of composite resin material haslimpact on shear bond strength. When 500 thermal cycles, shear bond strength of Solitaire2 composite resin is significantly lower than Filtek P60.
Keywords:Solitaire2 composite resin  Filtek P60 composite resin  psychro-thermal cycles  shear bond strength
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