Early uncovering of HA-coated cylinder implants: case report of an in vivo shear strength test.
A new approach was used to test the readiness of an HA-coated implant for commencement of prosthetic procedures after two months of bone healing in humans. A torquing device was used for clinical measurement of the shear resistance of the supporting bone. It was found that the bone was capable of resisting a shear force just slightly greater than that which was necessary to produce displacement of implants placed in dog femurs with a comparable bone-healing period and with healing to full maturity. This report suggests that it may be feasible to uncover HA-coated implants after two months of bone healing.
Lum
L B
LB
University of California School of Dentistry in San Francisco, CA 94143.
Osier
J F
JF
Nowell
R
R
Lukes
G
G
D015921:Dental Implants; D003799:Dental Stress Analysis; D006801:Humans; D006882:Hydroxyapatites; D008422:Materials Testing; D016348:Osseointegration; D012399:Rotation; D013718:Tensile Strength; D013997:Time Factors
D015921:Dental Implants; D006882:Hydroxyapatites