Affiliation:
1. Department of Operative Dentistry, Araraquara Dental School São Paulo State University (UNESP) Araraquara Brazil
2. Department of Restorative Dentistry, School of Dentistry University Center of the State of Pará Belém Brazil
3. Instituto de Ciencias Biomédicas Universidad Autonoma de Chile Santiago Chile
Abstract
AbstractObjectiveTo evaluate the effect of etch‐and‐rinse (ER) versus self‐etch (SE) strategies of a universal adhesive applied with a manual brush (MB) or rotary brush (RB) on the bonding interface of fiber post cementation.MethodsForty bovine incisor roots were prepared and divided into four groups according to the methods of application and strategy of universal adhesive use (MB‐ER, RB‐ER, MB‐SE and RB‐SE). After 6 months, specimens from different thirds of the post space were evaluated of push‐out strength, analysis of adhesive failure patterns, and extent of tags.ResultsThe RB‐ER and RB‐SE groups showed the highest bond strength values in the cervical and middle thirds of the post space. Cohesive adhesive failure had the highest incidence in the different thirds of the post space in the ER strategy, regardless of the adhesive application method. The RB‐ER group showed the highest tag extensions.ConclusionsThe protocols of universal adhesive application with RB provided the greater bond strength, but only the ER strategy favored the formation of a greater extension of tags at the adhesive interface.Clinical SignificanceThe application of universal adhesive with RB into the post space increases the strength of the post‐cemented fiber bond.
Funder
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Cited by
9 articles.
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