Evaluation of change in surface enamel microhardness in patients undergoing fixed orthodontic appliance therapy – A randomized control trial

Aim: This study aims at determining the amount of enamel decalcification in terms of microhardness. Materials and Methods: Twenty patients requiring treatment by extraction method for Class I malocclusion with bimaxillary protrusion were selected for the study. Twenty patients were randomly divided...

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Autores principales:	Ramya Rajendran, V Sudhakar, R Sumanth Rangarajan, Anandadevi Chinnasamy, G Vasupradha, J Sathiya Jeeva
Formato:	article
Lenguaje:	EN
Publicado:	Wolters Kluwer Medknow Publications 2021
Materias:	decalcification enamel microhardness fixed orthodontic appliance microhardness white spot Pharmacy and materia medica RS1-441 Analytical chemistry QD71-142
Acceso en línea:	https://doaj.org/article/86f1b9ab0f8e471e9403e2bd29a41c1a
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spelling	oai:doaj.org-article:86f1b9ab0f8e471e9403e2bd29a41c1a2021-11-19T12:15:52ZEvaluation of change in surface enamel microhardness in patients undergoing fixed orthodontic appliance therapy – A randomized control trial0975-740610.4103/jpbs.jpbs_259_21https://doaj.org/article/86f1b9ab0f8e471e9403e2bd29a41c1a2021-01-01T00:00:00Zhttp://www.jpbsonline.org/article.asp?issn=0975-7406;year=2021;volume=13;issue=6;spage=1106;epage=1110;aulast=Rajendranhttps://doaj.org/toc/0975-7406Aim: This study aims at determining the amount of enamel decalcification in terms of microhardness. Materials and Methods: Twenty patients requiring treatment by extraction method for Class I malocclusion with bimaxillary protrusion were selected for the study. Twenty patients were randomly divided into control group and experimental group. In the control group (n = 40), extraction of permanent first premolars was done on day 1 of bonding to assess the Vickers hardness number (VHN) of enamel surface, and in the experimental group (n = 40), extraction of the contralateral premolars was done on the 28th day after bonding to assess the VHN of enamel surface. The values are tabulated and analyzed by SPSS software. Results: There is significant surface enamel dissolution of enamel crystals in the experimental group compared to the control group, and a statistically significant difference in VHN is evident between the control and experimental groups. The surface enamel dissolution (VHN) is not significant difference noted between mandibular and maxillary premolars of the control and experimental groups. Conclusion: The present study has demonstrated a higher level of surface enamel dissolution in the experimental group. There is a marked difference in the VHN between the control and experimental groups, which is statistically significant. The scanning electron microscopy study also confirms the presence of surface enamel demineralization following orthodontic bonding.Ramya RajendranV SudhakarR Sumanth RangarajanAnandadevi ChinnasamyG VasupradhaJ Sathiya JeevaWolters Kluwer Medknow Publicationsarticledecalcificationenamel microhardnessfixed orthodontic appliancemicrohardnesswhite spotPharmacy and materia medicaRS1-441Analytical chemistryQD71-142ENJournal of Pharmacy and Bioallied Sciences, Vol 13, Iss 6, Pp 1106-1110 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	decalcification enamel microhardness fixed orthodontic appliance microhardness white spot Pharmacy and materia medica RS1-441 Analytical chemistry QD71-142
spellingShingle	decalcification enamel microhardness fixed orthodontic appliance microhardness white spot Pharmacy and materia medica RS1-441 Analytical chemistry QD71-142 Ramya Rajendran V Sudhakar R Sumanth Rangarajan Anandadevi Chinnasamy G Vasupradha J Sathiya Jeeva Evaluation of change in surface enamel microhardness in patients undergoing fixed orthodontic appliance therapy – A randomized control trial
description	Aim: This study aims at determining the amount of enamel decalcification in terms of microhardness. Materials and Methods: Twenty patients requiring treatment by extraction method for Class I malocclusion with bimaxillary protrusion were selected for the study. Twenty patients were randomly divided into control group and experimental group. In the control group (n = 40), extraction of permanent first premolars was done on day 1 of bonding to assess the Vickers hardness number (VHN) of enamel surface, and in the experimental group (n = 40), extraction of the contralateral premolars was done on the 28th day after bonding to assess the VHN of enamel surface. The values are tabulated and analyzed by SPSS software. Results: There is significant surface enamel dissolution of enamel crystals in the experimental group compared to the control group, and a statistically significant difference in VHN is evident between the control and experimental groups. The surface enamel dissolution (VHN) is not significant difference noted between mandibular and maxillary premolars of the control and experimental groups. Conclusion: The present study has demonstrated a higher level of surface enamel dissolution in the experimental group. There is a marked difference in the VHN between the control and experimental groups, which is statistically significant. The scanning electron microscopy study also confirms the presence of surface enamel demineralization following orthodontic bonding.
format	article
author	Ramya Rajendran V Sudhakar R Sumanth Rangarajan Anandadevi Chinnasamy G Vasupradha J Sathiya Jeeva
author_facet	Ramya Rajendran V Sudhakar R Sumanth Rangarajan Anandadevi Chinnasamy G Vasupradha J Sathiya Jeeva
author_sort	Ramya Rajendran
title	Evaluation of change in surface enamel microhardness in patients undergoing fixed orthodontic appliance therapy – A randomized control trial
title_short	Evaluation of change in surface enamel microhardness in patients undergoing fixed orthodontic appliance therapy – A randomized control trial
title_full	Evaluation of change in surface enamel microhardness in patients undergoing fixed orthodontic appliance therapy – A randomized control trial
title_fullStr	Evaluation of change in surface enamel microhardness in patients undergoing fixed orthodontic appliance therapy – A randomized control trial
title_full_unstemmed	Evaluation of change in surface enamel microhardness in patients undergoing fixed orthodontic appliance therapy – A randomized control trial
title_sort	evaluation of change in surface enamel microhardness in patients undergoing fixed orthodontic appliance therapy – a randomized control trial
publisher	Wolters Kluwer Medknow Publications
publishDate	2021
url	https://doaj.org/article/86f1b9ab0f8e471e9403e2bd29a41c1a
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Evaluation of change in surface enamel microhardness in patients undergoing fixed orthodontic appliance therapy – A randomized control trial

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