Different Molarities and Dissolution-Precipitation Duration Affect the Formation of Carbonate-Apatite Blocks for Bone Graft Material
Pesqui. bras. odontopediatria clín. integr
;
20: e5644, 2020. tab, graf
Artigo
em Inglês
| LILACS, BBO
| ID: biblio-1135520
ABSTRACT
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.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Resistência à Tração
/
Sulfato de Cálcio
/
Adsorção
/
Materiais Dentários
País/Região como assunto:
Ásia
Idioma:
Inglês
Revista:
Pesqui. bras. odontopediatria clín. integr
Assunto da revista:
Odontologia
Ano de publicação:
2020
Tipo de documento:
Artigo
País de afiliação:
Indonésia
Instituição/País de afiliação:
Universitas Indonesia/ID
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