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A comparison of the bone-like apatite formation potency between hydroxyapatite and beta-tricalcium phosphate in glass ionomer dental luting cement

Authors
 S.I. Yoon  ;  Yong Keun Lee  ;  Kyoung Nam Kim  ;  S.O. Kim  ;  H.K. Son  ;  J.Y. Kwak  ;  J.Y. Kim  ;  H.J. Choi 
Citation
 Key Engineering Materials, Vol.309~311 : 885-888, 2006 
Journal Title
 Key Engineering Materials 
ISSN
 1662-9795 
Issue Date
2006
Abstract
Previous studies have shown that hydroxyapatite increases the bonding strength of dental luting cement with human teeth by forming bone-like apatite when it is added to cement. However, due to the low solubility of the hydroxyapatite, its ability to form bone-like apatite decreases in protein-free acellular simulated body fluid with ion concentrations nearly equal to those of the human blood plasma. The purpose of this experiment was to increase the formation of bone-like apatite by mixing hydroxyapatite with β-TCP of high solubility. RelyXTM glass ionomer cement(3M/ESPE, USA) was used as dental luting cement. Film thickness, setting time, and compressive strength was measured for each group of 15% hydroxyapatite, 15% β-TCP, and 15% mixed hydroxyapatite and β-TCP (85:15). Every specimen of each group was immersed in the simulated body fluid for four week before measuring bonding strength, and then their sectional surface was observed under SEM. The most noteworthy result was that the group containing β-TCP produced more amount of bone-like apatite compared with the group composed of only hydroxyapatite.
Full Text
http://www.scientific.net/KEM.309-311.885
DOI
10.4028/www.scientific.net/KEM.309-311.885
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Pediatric Dentistry (소아치과학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Dental Biomaterials and Bioengineering (치과생체재료공학교실) > 1. Journal Papers
Yonsei Authors
김경남(Kim, Kyoung Nam)
김성오(Kim, Seong Oh) ORCID logo https://orcid.org/0000-0002-8620-1377
손흥규(Son, Heung Kyu)
이용근(Lee, Yong Keun)
최형준(Choi, Hyung Jun) ORCID logo https://orcid.org/0000-0002-3315-6912
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/110946
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