Maxilla vs mandible: why use HA?
Various studies have shown that noncoated, metallic screw-type implants have been highly successful in types 1, 2, and 3 bone. However, in type 4 bone, such as that found in the maxilla, these implants have not been as successful. In the maxilla, HA-coated implants have shown better results than noncoated implants, particularly with regard to bone-to-implant contact, shear strength, and fixation. The author therefore concludes that the HA-coated implant may have better long-term success when shorter implants are needed, and when treating patients with poor, low density, and cancellous bone.
Meffert
R M
RM
Department of Periodontics, University of Texas Health Science Center, San Antonio.
D000818:Animals; D015519:Bone Density; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D017268:Dental Prosthesis Retention; D017886:Durapatite; D006801:Humans; D008334:Mandible / Q000601:surgery*; D008437:Maxilla / Q000601:surgery*; D016348:Osseointegration; D013499:Surface Properties; D013501:Surface-Active Agents
D015921:Dental Implants; D013501:Surface-Active Agents; D017886:Durapatite