Effect of manipulation of non-simplified dentin bonding systems on the bond strength to dentin

• Grant number: 14/23430-3
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: January 01, 2015
• End date: December 31, 2015
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal Investigator: Linda Wang
• Grantee: Mariana Ribeiro dos Santos
• Host Institution: Faculdade de Odontologia de Bauru (FOB). Universidade de São Paulo (USP). Bauru , SP, Brazil

Abstract

No systematic manipulation of dentin bonding systems by the operator can interfere on the adhesive quality to the dentin substrate.. The aim of this study is to simulate routine conditions on clinical practice on the bonding strength (BS) to dentin.. The null hypothesis to be tested are: 1- there is no difference on BS of two no-simplified dentin bonding systems to dentin regarding their manipulation; 2- there is no difference on BS of two no-simplified dentin bonding systems to dentin regarding their manipulation over time. Two no simplified denting bonding systems, Adper Scotchbond multipurpose (MP) and Clearfil SE Bond (SE) will be tested, in comparison to a two-step etch-and-rinse bonding system (Adper Single Bond Universal-SBU) Simulations will involve four conditions: At room (C),, aged in clinical routine during 2 weeks (CA) and aged in laboratory (LA). Sound human molars will be selected and prepared to bonding according to the described groups and they will be restored to obtain sticks after 24 hours. Data will be collected and statistically analyzed.