The effect of diameter and length of hydroxylapatite-coated dental implants on ultimate pullout force in dog alveolar bone.
This study compared the effect of diameter and length on the pullout force required to extract hydroxylapatite-coated implants from dog alveolar bone. After 15 weeks for integration, implants of 3.0, 3.3, and 4.0 mm diameter and 4, 8, and 15 mm length were pulled. The results showed that the ultimate pullout force correlated strongly to implant length, but not diameter. Cortical bone contributed more to implant retention than cancellous bone.
Block
M S
MS
Department of Oral and Maxillofacial Surgery, LSU School of Dentistry, New Orleans 70119.
Delgado
A
A
Fontenot
M G
MG
D000539:Alveolar Process / Q000502:physiology*; D000704:Analysis of Variance; D000818:Animals; D015921:Dental Implants; D003799:Dental Stress Analysis / Q000295:instrumentation; D004285:Dogs; D017886:Durapatite; D004867:Equipment Design; D006882:Hydroxyapatites
D015921:Dental Implants; D006882:Hydroxyapatites; D017886:Durapatite