Effect
of retention
grooves
on tooth-denture
base bond
Harold S. Cardash, B.D.S., L.D.S., R.C.S.(Eng.),* Benjamin Applebaum, D.M.D.,** Haim Baharav, D.M.D.,*** and Reuven Liberman, D.M.D.**** Tel Aviv University, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv, Israel 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 0, < 0.01). A significantly greater force was required to fracture teeth from high-impact resin @ < 0.01). Vertical retention grooves enhanced bond strength @
of retention
grooves
on tooth-denture
base bond
Harold S. Cardash, B.D.S., L.D.S., R.C.S.(Eng.),* Benjamin Applebaum, D.M.D.,** Haim Baharav, D.M.D.,*** and Reuven Liberman, D.M.D.**** Tel Aviv University, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv, Israel 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 0, < 0.01). A significantly greater force was required to fracture teeth from high-impact resin @ < 0.01). Vertical retention grooves enhanced bond strength @
