title: Methods used in dentin bonding tests: an analysis of 50 investigations on bond strength.
abstract: Researchers have carried out a variety of investigations to determine the properties of available dentin bonding systems. The test methods and variables used in 50 published investigations of bond strength were analyzed. Among the studies analyzed, shear tests predominated, being used in 80% of the studies; dentin from human molar teeth was used most often (in 88% of investigations); and the most prevalent time of testing was 24 hours postcuring. However, a number of potential variables were not recorded in a high proportion of articles, among these the film thickness, the type of dentin tested, and the surface condition (moist or dry). The mode of failure was recorded in only 42% of the investigations assessed. It was found that there is little standardization of test methods in studies of dentin bond strength and that a number of variables are often either not recorded or reported.
authors.affiliation: Unit of Dental Practice, University Dental Hospital of Manchester, England, United Kingdom.
authors.forename: S K
authors.initials: SK
authors.lastname: al-Salehi
authors.forename: F J
authors.initials: FJ
authors.lastname: Burke
mesh_terms: D003188:Composite Resins / Q000737:chemistry / Q000494:pharmacology*; D003804:Dentin / Q000187:drug effects*; D017220:Dentin-Bonding Agents / Q000737:chemistry / Q000494:pharmacology*; D006801:Humans; D066298:In Vitro Techniques; D008422:Materials Testing / Q000379:methods* / Q000592:standards; D012107:Research Design; D013499:Surface Properties; D013718:Tensile Strength; D013997:Time Factors
chemical_list: D003188:Composite Resins; D017220:Dentin-Bonding Agents