Comparison of the effects of added α - and β- Tricalcium phosphate on the basic properties of apatite cement

Akinari Nakagawa, Shigeki Matsuya, Akari Takeuchi, Kunio Ishikawa

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Effects of added α-tricalcium phosphate (α-TCP) and β-TCP were investigated to shed light on the setting reaction of apatite cement (AC) consisting of tetracalcium phosphate (TTCP) and dicalcium phosphate anhydrous8 (DCPA). Added β-TCP showed no reactivity, and thus resulted in extended setting time and decreased mechanical strength. In contrast, α-TCP dissolved to supply calcium and phosphate ions after initial apatite crystal formation by the reaction of TTCP and DCPA. Although setting time was delayed because α-TCP was involved only in the latter reaction of apatite cement, larger apatite crystals were formed due to its addition. As a result of larger apatite crystal formation, the mechanical strength of α-TCP-added apatite cement increased by approximately 30%, as compared to α-TCP-free apatite cement.

Original languageEnglish
Pages (from-to)342-347
Number of pages6
Journaldental materials journal
Volume26
Issue number3
DOIs
Publication statusPublished - Jan 1 2007

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Dentistry(all)

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