An in vitro study of fluoride release rate of F-containing thermoplastic resina / 实用口腔医学杂志
Journal of Practical Stomatology
; (6)2000.
Artigo
em Chinês
| WPRIM (Pacífico Ocidental)
| ID: wpr-671015
Biblioteca responsável:
WPRO
ABSTRACT
Objective:
To observe the fluoride release rate of F-containing thermoplastic resina,trying to find a suitable concentration of fluoride in thermoplastic resina to prevent caries in base teeth of partial denture restorations.Methods:
Na2(PO3)F-containing thermoplastic resina,respectively 0,10%,15%,20% and 25%(w/w)in concentration were cut into three 1 g blocks and immersed in 100,200 and 500 ml deionized water.These composite resins in 100 ml and 200 ml solutions were replaced every 1,2,3,6,9,16 days(every 7 days after that)until two months later,500 ml solution was reserved after 3,6,9 days every 7 days later until two months,2 ml of which were reserved every time.The fluoride release rates of these thermoplastic resina were tested by potentiometry.Results:
All thermoplastic resina containing different concentrations of fluoride could release F-during the period of 65 days.Conclusion:
When Na2(PO3)F is mixed in thermoplastic resina,it releases fluoride slowly.Thermoplastic resina containing 15% F-has higher release rates of fluoride.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Journal of Practical Stomatology
Ano de publicação:
2000
Tipo de documento:
Artigo