Document Detail

Mechanical and biological properties of apatite composite resins.
MedLine Citation:
PMID:  2850827     Owner:  NLM     Status:  MEDLINE    
Well-crystallized hydroxyapatite was synthesized at 80 degrees C and pH 7.4, and mixed as filler with 2.2'(4-methacryloxydiethoxyphenyl) propane. BPO and DHPT were used as polymerization initiators. The compressive strength and Knoop hardness of the apatite composite resins increased with the increase of apatite content, and approached a plateau above an apatite-resin ratio (Ap/R) of 1. The thermal expansion coefficient of the composite with apatite-resin ratio Ap/R = 1 was almost equal to that of teeth. In tooth cavities, the composites seemed to adhere well to enamel without a bonding agent. The biocompatibility of the composites implanted hypodermically into rats appeared to improve with the increase of apatite content, and implants showed no significant inflammation after 1 wk and 4 wk.
M Okazaki; H Ohmae
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Biomaterials     Volume:  9     ISSN:  0142-9612     ISO Abbreviation:  Biomaterials     Publication Date:  1988 Jul 
Date Detail:
Created Date:  1989-03-02     Completed Date:  1989-03-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8100316     Medline TA:  Biomaterials     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  345-8     Citation Subset:  IM    
Department of Dental Technology, Osaka University Faculty of Dentistry, Japan.
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MeSH Terms
Biocompatible Materials*
Hydroxyapatites* / chemical synthesis
Microscopy, Electron
Prostheses and Implants*
Resins, Plant
Skin / cytology
Spectrophotometry, Atomic
X-Ray Diffraction
Reg. No./Substance:
0/Acrylates; 0/Biocompatible Materials; 0/Hydroxyapatites; 0/Methacrylates; 0/Resins, Plant; 117381-44-9/2,2'-(4-methacryloxydiethoxyphenyl)propane; 1306-06-5/Durapatite

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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