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Setting Properties of Brushite and Hydroxyapatite Compound Cements

By Zilgma Irbe, Linda Vecbiškena and Līga Bērziņa-Cimdiņa

Abstract

In this work properties of potential brushite and calcium deficient hydroxyapatite compound cements are investigated. Calcium dihydrogenphosphate monohydrate and α-tricalcium phosphate are starting materials for investigated cements. Setting time is controlled by adding setting time retarder – citrate ions and initially unreactive filler - monetite. Some compositions of obtained cements contain both brushite and hydroxyapatite. However, a substantial amount of monetite was present, even if it is not added as filler. There is a strong evidence of presence of octacalcium phosphate

Topics: biomaterials, calcium phosphates, calcium phosphate cements
OAI identifier: oai:ortus.rtu.lv:7997
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