Evaluation of hydroxylapatite root implants in baboons.
To determine if there is a need for close conformation of a hydroxylapatite implant to the root socket for successful prevention of alveolar ridge resorption after tooth extraction, second premolars and lateral incisors of six mature baboons were extracted bilaterally, and custom-fitted root replicas or half-length, plug-shaped forms of hydroxylapatite were implanted in the fresh sockets. Results showed that precise fit, as achieved by a custom-fitted implant, was not necessary for success. All implants were completely accepted, with evidence of new bone formation continuing for up to six months, the duration of the study. No resorption of the alveolar ridge was observed by gross or microscopic examination.
Gumaer
K I
KI
Salsbury
R L
RL
Sauerschell
R J
RJ
Slighter
R G
RG
Drobeck
H P
HP
D000539:Alveolar Process / Q000033:anatomy & histology* / Q000502:physiology; D000818:Animals; D001862:Bone Resorption / Q000517:prevention & control*; D003238:Connective Tissue / Q000033:anatomy & histology; D017886:Durapatite; D005881:Gingiva / Q000033:anatomy & histology; D006882:Hydroxyapatites; D008336:Mandibular Diseases / Q000517:prevention & control; D010012:Osteogenesis; D010118:Oxytetracycline; D010215:Papio; D019736:Prostheses and Implants; D013499:Surface Properties; D014081:Tooth Extraction; D014945:Wound Healing
D006882:Hydroxyapatites; D017886:Durapatite; D010118:Oxytetracycline