[含氟微量元素制剂对变形链球菌突变体生长的影响]。

Hongkun Wu, Xuedong Zhou, Anchun Mo, Xiaorong Xiao, Zhu Zhu, Jiyao Li
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引用次数: 0

摘要

目的:比较6种含氟和不含氟的微量元素制剂对变形链球菌突变体生长的影响,并检测氟与微量元素的相互作用。方法:选取6种含氟微量元素药剂[SnF2、ZnF2、SrF2、LaF2、(NH3)2MoF8、NaF]和6种不含氟微量元素药剂[SnCl2、SrCl2、LaCl2、ZnAc2、(NH3)2MoO4、NaCl]。采用连续厌氧培养技术和菌液吸光度及细菌计数,评价不同药剂对变形链球菌生长的影响。结果:NaF、SnF2、SnCl2、ZnF2、ZnAc2、(NH3)2MoF8和(NH3)2MoO4对S. mutans突变体的生长有较强的抑制作用(P < 0.01)。SnF2的抑制作用强于SnCl2;ZnF2的抑制作用强于ZnAc2, (NH3)2MoF8与(NH3)2MoO4之间无显著差异。SnF2和ZnF2的抑制作用最强(P < 0.01)。SrF2组、SrCl2组、LaCl2组、LaF2组、NaCl组与对照组比较差异均不显著(P > 0.05)。结论:含氟和微量元素(如锡、锌)的药剂具有抑制突变体生长的作用,在预防龋齿方面,含氟和微量元素的药剂比单氟更有效,其潜在机制可能是氟和微量元素的协同作用。
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[The effects of fluoride-containing trace element agents on the growth of mutants of S. mutans].

Objective: To compare the influence of 6 trace element agents containing fluoride versus 6 trace element agents not containing fluoride on the growth of mutants of S. mutans and detect the interaction between fluoride and trace elements.

Methods: Six trace element agents containing fluoride [SnF2, ZnF2, SrF2, LaF2, (NH3)2MoF8, NaF] and 6 trace element agents not containing fluoride [SnCl2, SrCl2, LaCl2, ZnAc2, (NH3)2MoO4, NaCl] were selected. The continuous anaerobic cultivating technique and the absorbency of bacteria liquid and the count of bacteria were used to assess the effects of different agents on the growth of S. mutans.

Results: NaF, SnF2, SnCl2, ZnF2, ZnAc2, (NH3)2MoF8 and (NH3)2MoO4 were found to have strong inhibition effects on the growth of mutant of S. mutans(P < 0.01). SnF2 had more stronger inhibition effects than SnCl2; ZnF2 had more stronger inhibition effects than ZnAc2, no significant differences were seen between (NH3)2MoF8 and (NH3)2MoO4. SnF2 and ZnF2 had most potent inhibition effects(P < 0.01). No significant differences were observed between SrF2, SrCl2, LaCl2, LaF2, NaCl and the control groups(P > 0.05).

Conclusion: The agents containing fluoride and trace elements, such as stannum and zinc had the effects of prohibiting the growth of mutant of S. mutans, As far as caries prevention is concerned, the agents containing both fluoride and trace elements are more effective than mono-fluoride, the potential mechanism may be the synergistic action between fluoride and trace elements.

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