Different molarities and dissolution-precipitation duration affect the formation of carbonate-apatite blocks for bone graft material

Yosi Kusuma Eriwati, Raudhea Vala Yulfa, Irena Wijatmo, Bambang Irawan

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Objective: To determine diametral tensile strength and water absorption ability of Carbonate-apatite blocks fabricated from gypsum precursors (CaSO4) through a dissolution-precipitation method, with different solution molarities and immersion times. Material and Methods: Thirty-six CaSO4 gypsum specimens with 6 mm diameter; 3 mm height (Group A for diametral tensile strength) and 36 specimens of 6 mm diameter; 3 mm thickness (Group B for water absorption ability) were used. Each group was divided into 4 group treatments of: 1) dissolution-precipitation in solution of 0.5mol / L Na2CO3 + 0.5mol / L Na3PO4 for 48 hours and 72 hours; 1mol / L Na2CO3 + 1mol / L Na3PO4 for 48 hours and 72 hours. The C-Ap blocks were then tested using ATR-FTIR spectrometer to identify the formation of C-Ap functional groups. Furthermore, Group A specimens were tested for diametral tensile strength using Universal Testing Machine, and Group B specimens were tested for water adsorption ability using an analytical balance by measuring initial and final weight after immersion in saline solution at 37oC for 24 hours. Results: The formation of carbonate-apatite (C-Ap) in groups with solution molarity of 1 mol/L for 48 hours and 72 hours resulted in a lower diametral tensile strength and water absorption ability than the groups with a 0.5 mol/L solution. Conclusion: Solution with different molarities and dissolution-precipitation duration affect the formation of carbonate-apatite blocks.

Original languageEnglish
Article numbere5644
Pages (from-to)1-8
Number of pages8
JournalPesquisa Brasileira em Odontopediatria e Clinica Integrada
Volume20
DOIs
Publication statusPublished - 2020

Keywords

  • Adsorption
  • Calcium Sulfate
  • Dental Materials
  • Tensile Strength

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