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Effect of tetracycline on the bond performance of etch-and-rinse adhesives to dentin
Stanislawczuk, Rodrigo; Costa, Jully Anna da; Polli, Luceli Grabicoski; Reis, Alessandra; Loguercio, Alessandro Dourado.
  • Stanislawczuk, Rodrigo; State University of Ponta Grossa. School of Dentistry. Department of Restorative Dentistry. Ponta Grossa. BR
  • Costa, Jully Anna da; s.af
  • Polli, Luceli Grabicoski; s.af
  • Reis, Alessandra; State University of Ponta Grossa. School of Dentistry. Department of Restorative Dentistry. Ponta Grossa. BR
  • Loguercio, Alessandro Dourado; State University of Ponta Grossa. School of Dentistry. Department of Restorative Dentistry. Ponta Grossa. BR
Braz. oral res ; 25(5): 459-465, Sept.-Oct. 2011. ilus, tab
Article in English | LILACS | ID: lil-601886
ABSTRACT
This study evaluated the effect of modified tetracycline on the resin-dentin bond strength (µTBS), silver nitrate uptake (SNU) and solution homogeneity (SH) of two adhesives. Dentin surfaces were treated with phosphoric acid, rinsed off and either rewetted with water (control group - CO), 2 percent minocycline (MI), 2 percent doxycyline (DO) or 2 percent chlorhexidine (CH). Adhesive systems (Adper Single Bond 2 and Prime Bond NT) and composite were applied and light-polymerized. Specimens were sectioned to obtain bonded sticks (0.8 mm²) to test under tension at 0.5 mm/min. For SNU, specimens were immersed in silver nitrate and analyzed by EDX-SEM. SH was qualitatively analyzed after mixing the adhesives with different solvent-based solutions containing MI, DO and CH. Lower µTBS values were observed in the DO group compared with MI and CH (p = 0.01). Lower SNU was observed for MI and CH. The lowest µTBS for both adhesives was observed for the DO group (p = 0.01). Signs of phase separation were observed for DO with both adhesives. MI or CH used as rewetting solutions after acid etching did not affect the µTBS and hybrid layer quality.
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Full text: Available Index: LILACS (Americas) Main subject: Tetracyclines / Dental Bonding / Dentin / Dentin Desensitizing Agents Limits: Humans Language: English Journal: Braz. oral res Journal subject: Dentistry Year: 2011 Type: Article Affiliation country: Brazil Institution/Affiliation country: State University of Ponta Grossa/BR

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Full text: Available Index: LILACS (Americas) Main subject: Tetracyclines / Dental Bonding / Dentin / Dentin Desensitizing Agents Limits: Humans Language: English Journal: Braz. oral res Journal subject: Dentistry Year: 2011 Type: Article Affiliation country: Brazil Institution/Affiliation country: State University of Ponta Grossa/BR