Sodium fluoride addition to a two-step etch-and-rinse adhesive system: effect on dentin microtensile bond strength and durability

نویسندگان

  • Homayoun Alaghehmand ,Dental Materials Research Center, Health Research Institute, Babol University of Medical Sciences,Babol, IR Iran.
  • Soraya Khafri ,Infertility and Reproductive Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, IR Iran.
  • Yasaman Samani ,Student Research Committee, Babol University of Medical Sciences,Babol, IR Iran.
  • Zahra Jafari ,Department of Operative Dentistry, Faculty of Dentistry, Mazandaran University of Medical Sciences,Sari, IR Iran.
چکیده مقاله:

Introduction: Studies have suggested that sodium fluoride (NaF) has an inhibitory effect on the activity of endogenous matrix metalloproteinase enzymes. This study assessed the effect of a fluoride-containing adhesive on microtensile bond&nbsp;strength (&micro;TBS) over time. Material & Methods: In this experimental study, 36 extracted &nbsp;third molars were used to evaluate the &micro;TBS of a 5th generation adhesive modified by NaF. The exposed dentin surfaces were abraded and built up using composite resin. Then, the specimens were randomly divided into three groups of 12 teeth based on the type of adhesive used: Solobond M with no inhibitor (control); Solobond M with 5,000 ppm NaF; and Solobond M with 10,000 ppm NaF. The &micro;TBS and failure mode of specimens were evaluated after 24-hour and 3-month storage in distilled water. Data were analyzed using ANOVA and Tukey&rsquo;s test. P<0.05 was considered as significant level. Results: The control group demonstrated a lower &micro;TBS than the experimental groups after 24 hours and 3 months (p<0.05). The &micro;TBS was higher in adhesive with 5,000 ppm NaF than in control group after 3 months (p<0.05). The group with 10,000 ppm NaF had the highest &micro;TBS after 24 hours and 3 months (p<0.05). Conclusion: The fluoride-containing adhesives showed significantly higher bond strength values than the original adhesive without fluoride after 24-hour and 3-month storage in distilled water, leading to the improvement of resin-dentin bonds.

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عنوان ژورنال

دوره 7  شماره None

صفحات  16- 23

تاریخ انتشار 2018-09

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