Surgical Tooth Implants, Combat and Field.
Abstract
Long term implant studies involving high density alumina Al2O3 tooth roots have been undertaken in baboons using a single root elipitical design with serrations designed for maximal stress distribution. The roots are produced by cutting on a computer controlled milling machine. This technique allows for sizes and shape flexibility, stress distribution area maximization, greater strength and a better quality root than was possible with slip casting. Implants have successfully remained rigid and function up to 2 years. Both fresh and edentulous extraction sites have been used. The success rate for ingrown roots placed in function is approximately 90 percent. Most failures occur during the initial 2 to 3 month ingrowth period. The success rate is approximately 60 percent during the ingrowth period in baboons. This initial period has been found to be the most crucial period for implant success. Once firmly stabilized by bone growth, a prefabricated post and core is cemented into place and impressions taken. Gold crowns are fabricated to put the root into function. Histologic examinations show dense ingrowth of bone into serrations with no intervening connective tissue.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 30, 1976
- Accession Number
- ADA037337
Entities
People
- Craig R. Hassler
- Larry G. Mccoy
Organizations
- Battelle Memorial Institute