The effects of nonthermal plasma treatment of different duration on the bonding strength of zirconia
10.3969/j.issn.1001-3733.2025.02.013
- VernacularTitle:不同时间低温等离子体处理对氧化锆粘接强度影响
- Author:
Yannan ZHANG
1
;
Min LIU
1
;
Fanhao MENG
1
;
Rui GAO
1
;
Jianfeng CHEN
1
Author Information
1. 116000,大连医科大学附属第一医院口腔科
- Publication Type:Journal Article
- Keywords:
Zirconia;
Nonthermal plasma;
Shear bonding strength
- From:
Journal of Practical Stomatology
2025;41(2):222-226
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To study the surface characterization and bonding strength of zirconia ceramic following nonthermal argon plasma(NTAP)treatment for different times.Methods:Zirconia ceramics were cut into 2 sizes of specimens(Ⅰ:10 mm×10 mm ×2 mm,Ⅱ:3 mm3 mm×2 mm),which were respectively subdivided into 5 groups:blank control group(A),sandblasting group(B)and NTAP treatment for 60,90 and 120 s groups(C,D and E respectively).The changes in surface morphology,roughness,C and O elements and contact angle of the sample surfaces were tested with Type Ⅰ specimens.Type Ⅱ specimens were applied to the uniform surface treatments and were cemented to isolated teeth using the RelyX U200 cement,the samples were submitted to a shear bond strength(SBS)test.Results:SEM and AFM show that NTAP treatment does not alter the surface morphology and roughness of zirconia ceramics.C element decreased and O element increased,and the contact angle became smaller after NTAP treatment.Among the 5 groups,group D showed the most extensive changes.And the result of SBS was as follows of NTAP treat-ment time:0 s＜60 s＜90 s=120 s(among 0,60 and 90 s groups,P＜0.05).Conclusion:NTAP treatment can improve the bond strength of zirconia ceramic by increasing its surface energy and wettability,and NTAP treatment for 90 s may be a suitable surface treatment method for zirconia ceramics.
