title: Shear bond strength of microwaveable acrylic resin for denture repair.
abstract: Microwaveable acrylic denture resins are believed to provide an effective means of repairing fractured dentures. This in vitro investigation compared the bond strength of a microwaveable acrylic resin as a denture repair material to two established auto-polymerized resins. Fifty-one specimens were made using Lucitone 199 as a simulated denture base, and were then divided into three groups of 17 samples each. Each test group was bonded with the following acrylic resins: Acron Mc, Rapid Repair and Palapress. A shear bond strength test was carried out 24 h after the samples were bonded. Fracture analysis showed that bond failure was adhesive for all groups. Shear bond values showed a statistically significant difference at P < 0.05 level between Acron Mc and Rapid Repair; Palapress and Rapid Repair, and indicated that Acron Mc and Palapress were superior to Rapid Repair as a repair material. However, there was no statistical difference found between Acron Mc and Palapress. Microwaveable acrylic resins produce repaired junctions of adequate strength.
authors.affiliation: Faculty of Dentistry, National University of Singapore, Singapore.
authors.forename: E T L
authors.initials: ET
authors.lastname: Ng
authors.forename: L H H
authors.initials: LH
authors.lastname: Tan
authors.forename: B S H
authors.initials: BS
authors.lastname: Chew
authors.forename: H P Y
authors.initials: HP
authors.lastname: Thean
mesh_terms: D000180:Acrylic Resins; D001840:Dental Bonding; D003780:Denture Repair; D008422:Materials Testing; D008872:Microwaves; D019279:Resin Cements; D013314:Stress, Mechanical
chemical_list: D000180:Acrylic Resins; D019279:Resin Cements