Accession Number:

ADA158019

Title:

Management of Hard Tissue Avulsive Wounds and Management of Orofacial Fractures.

Descriptive Note:

Annual rept. 1 Apr 76-15 Aug 77,

Corporate Author:

BATTELLE COLUMBUS LABS OH

Personal Author(s):

Report Date:

1977-07-15

Pagination or Media Count:

16.0

Abstract:

Research studies in bioceramics were continued to further our understanding of the in vivo behavior of resorbable calcium phosphate ceramics for use in the management of hard tissue avulsive wounds and orofacial fractures. Material processing studies were conducted to develop porous tricalcium phosphate materials of different stoichiometry. These two portions of the study were to further understanding of the basic question Is the optimal material for bone ingrowth and biodegradation going to be produced by alterations in stoichiometry or alterations in pore structure within the material of the given stoichiometry Numerous tricalcium phosphate powders were produced having controlled calcium to phosphate ratios. The results of the study indicated that preparation of a single phase variable composition material does not appear possible using standard methods even though beta phase tricalcium phosphate will be the predominant phase in all materials, secondary phases of monetite or hydroxyapatite were always found depending upon what border of the compositional range the compound fell.

Subject Categories:

  • Medicine and Medical Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE