SHORT- AND LONG-TERM BOND STRENGTHS OF A GOLD STANDARD

Journal of Istanbul University Faculty of Dentistry

卷:49

Canan BAYDEMİR¹  Safa TUNCER²  Mustafa DEMİRCݲ  Dial PASHAEV²  Neslihan TEKÇE³ 

[1] Department of Biostatistics and Medical Informatics Faculty of Medicine Kocaeli University;

[2] Department of Restorative Dentistry Faculty of Dentistry Istanbul University;

[3] Department of Restorative Dentistry Faculty of Dentistry Kocaeli University;

关键词: Microtensile bond strength test;    two-step self-etch adhesive;    degradation;    water aging;   

DOI  :  10.17096/jiufd.60136

来源: DOAJ

【 摘 要 】

Purpose: The aim of this study was to investigatethe micro tensile bond strength of a self-etchadhesive system following 1 year storage in water.Materials and Methods: 10 sound human molar teethwere used for micro tensile bond strength test. Twostepself-etch dentin adhesive (Clearfil SE Bond®)was applied to the flat dentin surfaces according tothe manufacturer’s instructions. Composite blocks (Z-250; 3M ESPE) of 5 mm in height have been preparedby using layering technique. Teeth were stored in waterfor 24 hours at 37°C and longitudinally sectionedto obtain dentin sticks of 1 mm2.Randomly selectedsamples from half of the teeth were immediatelysubjected to micro tensile test and. Remainingspecimens were tested after 1 year storage in water.Bond strengths were calculated in megapascal (MPa).Results: Means and standard deviations of theClearfil SE Bond® micro tensile bond strength valueswere, respectively, 37.31 ± 13.77 MPa and 24.78 ±2.99 MPa after 24 h and 1 year of storage in water.The difference was statistically significant (p=0.031).Conclusion: Long-term storage in water decreasedthe micro tensile bond strength values of the twostepself-etch adhesive which has been acceptedas the gold standard in bond strength tests.

【 授权许可】

Unknown