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Comparative efficacy of a hydroxyapatite and a fluoride toothpaste for prevention and remineralization of dental caries in children.
BDJ Open ( IF 2.5 ) Pub Date : 2019-12-09 , DOI: 10.1038/s41405-019-0026-8
Bennett T Amaechi 1 , Parveez Ahamed AbdulAzees 1 , Dina Ossama Alshareif 1 , Marina Adel Shehata 1 , Patrícia Paula de Carvalho Sampaio Lima 1 , Azadeh Abdollahi 1 , Parisa Samadi Kalkhorani 1 , Veronica Evans 1
Affiliation  

Objective This in situ study compared the effectiveness of two toothpastes containing hydroxyapatite or 500 ppm fluoride in promoting remineralization and inhibiting caries development. Materials and methods Two enamel blocks (human primary teeth), one sound and one with artificially-produced caries lesion, were exposed to toothpaste containing either 10% hydroxyapatite or 500 ppm F- (amine fluoride) via intra-oral appliance worn by 30 adults in two-arm double blind randomized crossover study lasting 14 days per arm (ClinicalTrials.gov: NCT03681340). Baseline and post-test mineral loss and lesion depth (LD) were quantified using microradiography. One-sided t-test of one group mean was used for intragroup comparison (baseline vs. post-test), while two-sided t-test of two independent means was used to compare the two toothpaste groups. Results Pairwise comparison (baseline vs. test) indicated significant (p < 0.0001) remineralization and LD reduction by either toothpaste; however, when compared against each other, there was no statistically significant difference in remineralization or LD reduction between the two toothpastes. No demineralization could be observed in sound enamel blocks exposed to either toothpaste. While F- induced lesion surface lamination, HAP produced a more homogenous lesion remineralization. Conclusions 10% hydroxyapatite achieved comparable efficacy with 500 ppm F- in remineralizing initial caries and preventing demineralization. Thus the HAP toothpaste is confirmed to be equal to the fluoride toothpaste in this study.

中文翻译:

羟基磷灰石和氟化物牙膏对预防和再矿化儿童龋齿的疗效比较。

目的 本原位研究比较了两种含有羟基磷灰石或 500 ppm 氟化物的牙膏在促进再矿化和抑制龋齿发展方面的效果。材料和方法 通过由 30 名成人佩戴的口腔内器具,将两颗牙釉质块(人类乳牙),一颗完好,一颗具有人工龋齿病变,暴露于含有 10% 羟基磷灰石或 500 ppm F-(氟化胺)的牙膏中在每组持续 14 天的双臂双盲随机交叉研究中(ClinicalTrials.gov:NCT03681340)。基线和测试后矿物质损失和病变深度 (LD) 使用显微射线照相术进行量化。一组均值的单侧 t 检验用于组内比较(基线与后测),而两个独立均值的双侧 t 检验用于比较两个牙膏组。结果 成对比较(基线与测试)表明,任一种牙膏显着(p < 0.0001)再矿化和 LD 降低;然而,当相互比较时,两种牙膏在再矿化或 LD 降低方面没有统计学上的显着差异。在暴露于任一牙膏的完好牙釉质块中均未观察到脱矿质。在 F 诱导的病灶表面分层时,HAP 产生了更均匀的病灶再矿化。结论 10% 羟基磷灰石在重新矿化初始龋齿和防止脱矿质方面与 500 ppm F- 具有相当的功效。因此,本研究证实 HAP 牙膏与含氟牙膏相同。然而,当相互比较时,两种牙膏在再矿化或 LD 降低方面没有统计学上的显着差异。在暴露于任一牙膏的完好牙釉质块中均未观察到脱矿质。在 F 诱导的病灶表面分层时,HAP 产生了更均匀的病灶再矿化。结论 10% 羟基磷灰石在重新矿化初始龋齿和防止脱矿质方面与 500 ppm F- 具有相当的功效。因此,本研究证实 HAP 牙膏与含氟牙膏相同。然而,当相互比较时,两种牙膏在再矿化或 LD 降低方面没有统计学上的显着差异。在暴露于任一牙膏的完好牙釉质块中均未观察到脱矿质。在 F 诱导的病灶表面分层时,HAP 产生了更均匀的病灶再矿化。结论 10% 羟基磷灰石在重新矿化初始龋齿和防止脱矿质方面与 500 ppm F- 具有相当的功效。因此,本研究证实 HAP 牙膏与含氟牙膏相同。在 F 诱导的病灶表面分层时,HAP 产生了更均匀的病灶再矿化。结论 10% 羟基磷灰石在重新矿化初始龋齿和防止脱矿质方面与 500 ppm F- 具有相当的功效。因此,本研究证实 HAP 牙膏与含氟牙膏相同。在 F 诱导的病灶表面分层时,HAP 产生了更均匀的病灶再矿化。结论 10% 羟基磷灰石在重新矿化初始龋齿和防止脱矿质方面与 500 ppm F- 具有相当的功效。因此,本研究证实 HAP 牙膏与含氟牙膏相同。
更新日期:2019-12-09
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