Nano-Hydroxyapatite Gel and Its Effects on Remineralization of Artificial Carious Lesions

Introduction. Nano-hydroxyapatite gel (NHG) has never been investigated for enamel remineralization. This study evaluated the effects of two concentrations of NHG on remineralization of an artificial carious lesion in comparison with nano-HA toothpaste (NHT) and fluoride varnish (FV). Materials and...

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Main Authors: Apa Juntavee, Niwut Juntavee, Ainaj Nuñez Sinagpulo
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:International Journal of Dentistry
Online Access:http://dx.doi.org/10.1155/2021/7256056
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author Apa Juntavee
Niwut Juntavee
Ainaj Nuñez Sinagpulo
author_facet Apa Juntavee
Niwut Juntavee
Ainaj Nuñez Sinagpulo
author_sort Apa Juntavee
collection DOAJ
description Introduction. Nano-hydroxyapatite gel (NHG) has never been investigated for enamel remineralization. This study evaluated the effects of two concentrations of NHG on remineralization of an artificial carious lesion in comparison with nano-HA toothpaste (NHT) and fluoride varnish (FV). Materials and Methods. Carious lesions were prepared on 100 enamel samples and divided into 5 groups: FV, NHT, 20% NHG, and 30% NHG. One untreated (NT) group was left as control. The hardness of the surface was evaluated before, during, and after remineralization. Microhardness at various phases and the percent recovery of hardness (%HR) were determined and analyzed with ANOVA. Polarized-light micrographs (PLM) were evaluated for depth of the carious lesion. Results. Significantly different remineralization capability was indicated for tested agents (p<0.05). NHT was significantly capable of remineralization greater than NHG, FV, and NT (p<0.05). No noticeable difference in %HR between 20% NHG and 30% NHG (p>0.05) was found. Decreasing in the depth of caries lesion was notified by PLM as applying either NHT or NHG as greater than FV, with no reduction in the depth for NT. Conclusions. Nano-HA both in toothpaste and gel form was capable of remineralization better than fluoride varnish. Comparable remineralization of 20% versus 30% NHG was evidenced. NHG for both concentrations was recommended as a capable remineralizing agent for caries remineralization. Clinical Significance: This study indicated that an application of nano-HA gel is an attractive route to deliver the material and can be more effective and less toxic than conventional formulations and provide its effectiveness directly at the site of action, especially for a noncooperative young child and medicinally intimidated patients who may face with inconvenience in using toothbrush and toothpaste for hygiene control.
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spelling doaj-art-fad21a82525e45b3ba21299e2bad20fe2025-02-03T06:46:09ZengWileyInternational Journal of Dentistry1687-87362021-01-01202110.1155/2021/7256056Nano-Hydroxyapatite Gel and Its Effects on Remineralization of Artificial Carious LesionsApa Juntavee0Niwut Juntavee1Ainaj Nuñez Sinagpulo2Division of Pediatric DentistryDepartment of ProsthodonticsDivision of Pediatric Dentistry and Biomaterials ResearchIntroduction. Nano-hydroxyapatite gel (NHG) has never been investigated for enamel remineralization. This study evaluated the effects of two concentrations of NHG on remineralization of an artificial carious lesion in comparison with nano-HA toothpaste (NHT) and fluoride varnish (FV). Materials and Methods. Carious lesions were prepared on 100 enamel samples and divided into 5 groups: FV, NHT, 20% NHG, and 30% NHG. One untreated (NT) group was left as control. The hardness of the surface was evaluated before, during, and after remineralization. Microhardness at various phases and the percent recovery of hardness (%HR) were determined and analyzed with ANOVA. Polarized-light micrographs (PLM) were evaluated for depth of the carious lesion. Results. Significantly different remineralization capability was indicated for tested agents (p<0.05). NHT was significantly capable of remineralization greater than NHG, FV, and NT (p<0.05). No noticeable difference in %HR between 20% NHG and 30% NHG (p>0.05) was found. Decreasing in the depth of caries lesion was notified by PLM as applying either NHT or NHG as greater than FV, with no reduction in the depth for NT. Conclusions. Nano-HA both in toothpaste and gel form was capable of remineralization better than fluoride varnish. Comparable remineralization of 20% versus 30% NHG was evidenced. NHG for both concentrations was recommended as a capable remineralizing agent for caries remineralization. Clinical Significance: This study indicated that an application of nano-HA gel is an attractive route to deliver the material and can be more effective and less toxic than conventional formulations and provide its effectiveness directly at the site of action, especially for a noncooperative young child and medicinally intimidated patients who may face with inconvenience in using toothbrush and toothpaste for hygiene control.http://dx.doi.org/10.1155/2021/7256056
spellingShingle Apa Juntavee
Niwut Juntavee
Ainaj Nuñez Sinagpulo
Nano-Hydroxyapatite Gel and Its Effects on Remineralization of Artificial Carious Lesions
International Journal of Dentistry
title Nano-Hydroxyapatite Gel and Its Effects on Remineralization of Artificial Carious Lesions
title_full Nano-Hydroxyapatite Gel and Its Effects on Remineralization of Artificial Carious Lesions
title_fullStr Nano-Hydroxyapatite Gel and Its Effects on Remineralization of Artificial Carious Lesions
title_full_unstemmed Nano-Hydroxyapatite Gel and Its Effects on Remineralization of Artificial Carious Lesions
title_short Nano-Hydroxyapatite Gel and Its Effects on Remineralization of Artificial Carious Lesions
title_sort nano hydroxyapatite gel and its effects on remineralization of artificial carious lesions
url http://dx.doi.org/10.1155/2021/7256056
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AT ainajnunezsinagpulo nanohydroxyapatitegelanditseffectsonremineralizationofartificialcariouslesions