Accession Number : ADA019784

Title :   Surgical Tooth Implants, Combat and Field.

Descriptive Note : Annual rept. no. 6, 1 Mar-31 Oct 75,


Personal Author(s) : Hassler,Craig R. ; McCoy,Larry G.

Report Date : 31 OCT 1975

Pagination or Media Count : 37

Abstract : This report summarizes recent developments concerning high-density, high-strength, improved alumina tooth root structures of nonbifurcated design for use in monkey and baboon tooth implant studies. Research has been conducted exclusively using roots with recessed elliptical sockets in the alumina roots which were designed to facilitate reconstruction. Effort has been made to improve the production and quality of the roots by experimenting with new slip-casting techniques and beginning development of injection-molding techniques. Gold alloy post and cores were manufactured for each root prior to implantation. Implantation into fresh extraction sites in mandibular locations of baboons were stressed. The initial 2 to 3 months of ingrowth prior to reconstruction were found to be the most crucial period for implant success. All failures to data, if they occurred, were in this initial period. Once firmly implanted and stabilized by growth into the deep surface grooves, post and cores were cemented into place and impressions taken and gold crowns fabricated to put the roots into biomechanical function. Several full function roots have been followed for up to 1 year. Histologic examination showed ingrowth of bone into the serrations of the tooth structures with minimal connective tissue. Epithelial proliferation usually is not evident below the first serration. (Author)

Descriptors :   *Dental prostheses, *Teeth, Implantation, High strength, Alumina, Baboons, Monkeys, Gold alloys, Dentistry, Ceramic materials, Prosthetic devices, Histology

Subject Categories : Medicine and Medical Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE