The effects of three fluoride-containing agents on the remineralization of deciduous teeth in vitro
- VernacularTitle:氟素制剂促进离体乳牙再矿化作用的比较研究
- Author:
Li'An WU
;
Fusheng YANG
;
- Publication Type:Journal Article
- Keywords:
Fluorides;
Calcification;
Deciduous teeth
- From:
Journal of Practical Stomatology
1995;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To compare the effects of three fluoride-containing agents on the remineralization of deciduous teeth in vitro. Methods: 36 deciduous teeth were randomly divided into four groups with 9 in each. The teeth were fenestrated on the labial middle surface and the rest parts of the teeth were covered with red nail polish.Every exposed area was etched,rinsed and puffed.Then the exposed areas were treated with 100 g/L(NH 4) 2MoO 2F 4(group ①) , 380 g/L Ag(NH 3) 2F (group ②) and APF-LaCl 3(group ③) for 3 minutes respectively, those in group④ were treated with deionized H 2O as the controls.Then,the teeth were placed into a bottle containing 5 ml remineralization solutions. 4 days later, the concentration of Ca 2+ in the remineralization solutions was measured. Results: The Ca 2+ concentrations (mmol/L) in the remineralization solution of group ①,②,③ and ④ were 0.338 9?0.116 5,0.570 0?0.145 5,0.517 8?0.084 8 and 0.120 4?0.046 8 respectively (P0.05:②vs③). Conclusion: The results indicate that all of the three fluoride-containing agents can promote the remineralization of deciduous teeth in vitro, and that both APF-LaCl 3 and 380 g/L Ag(NH 3) 2F are more effective than 100 g/L(NH 4) 2, MoO 2 F 4.
