Effect of retention grooves on tooth-denture base bond.
The bond strength of acrylic resin teeth with and without retention grooves processed onto standard and high-impact denture base resin was investigated. A shear compressive force was applied at an angle of 130 degrees to the lingual surface of the teeth until fracture occurred. The values were subjected to a two-way analysis of variance with repeated measures. Canine teeth bonded better than central or lateral incisors (p less than 0.01). A significantly greater force was required to fracture teeth from high-impact resin (p less than 0.01). Vertical retention grooves enhanced bond strength (p less than 0.01).
Cardash
H S
HS
Department of Oral Rehabilitation, Tel Aviv University, Maurice and Gabriela Goldschleger School of Dental Medicine, Israel.
Applebaum
B
B
Baharav
H
H
Liberman
R
R
D000180:Acrylic Resins; D000704:Analysis of Variance; D001840:Dental Bonding; D003799:Dental Stress Analysis; D003819:Denture Bases; D003779:Denture Design; D003781:Denture Retention; D006801:Humans; D008422:Materials Testing; D013314:Stress, Mechanical; D013499:Surface Properties; D014093:Tooth, Artificial
D000180:Acrylic Resins