Abstract
Implant therapy at the site of missing teeth associated with periodontitis or any other disease may be difficult due to the loss of alveolar bone. Alveolar ridge augmentation has been attempted in such cases from an esthetic and functional point of view. This study was conducted to investigate the effectiveness of Hydroxyapatite-coated Implant conducting ridge augmentation using the guided bone regeneration technic (GBR). Three months after extraction of the lower P 1, P 2, P 3, and P 4 of mongrel dogs, Hydroxyapatite-coated Implant covered with polytetrafluoroethylene (PTFE) membrane was placed on the artifical bone defects on the buccal side of extraction sites.
There was no inflammation during this study.
Specimens were removed and examined by light microscopy three months later.
Histological evaluation of specimens showed bone formation in the right upper mesh zone of Implant. About 60.7 kg/cm2 was required to transect osseointegrated bones.
These findings suggested that Hydroxyapatitecoated Implant covered with PTFE membrane may be useful for implantation in the site of bone resorption.
