1. Transmucosal implants of dense hydroxylapatite;de Putter;J. Prosthet. Dent.,1983
2. Dental root implants of apatite ceramics;Denissen,1979
3. Preparation and properties of sintered hydroxyapatite;Peelan;Ceramurgia Int.,1978
4. Reducing ridge reduction;van der Kuij,1980
5. A histopathological report on the nature of the epithelium and underlying connective tissue which surrounds oral implants;James,1974