Curvature-dependent shear bond strength of different attachment materials for orthodontic lingual indirect bonding

Abstract To evaluate the shear bond strength (SBS) of different attachment materials used for lingual bonding, the influence of artificial aging and the radii of curvature of the enamel surface on SBS, 192 third molars were photographed to determine the radius of curvature of the oral surface. After...

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Autores principales:	Rebecca Jungbauer, Paul Al-Burghol, Martin Rosentritt, Christian Kirschneck, Peter Proff, Friedrich Paulsen, Christian M. Hammer
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0ef96dfc34a442af9a38c135c5c878b9
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spelling	oai:doaj.org-article:0ef96dfc34a442af9a38c135c5c878b92021-12-02T17:08:35ZCurvature-dependent shear bond strength of different attachment materials for orthodontic lingual indirect bonding10.1038/s41598-021-96164-32045-2322https://doaj.org/article/0ef96dfc34a442af9a38c135c5c878b92021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96164-3https://doaj.org/toc/2045-2322Abstract To evaluate the shear bond strength (SBS) of different attachment materials used for lingual bonding, the influence of artificial aging and the radii of curvature of the enamel surface on SBS, 192 third molars were photographed to determine the radius of curvature of the oral surface. After phosphoric acid etching a cylindrical test piece was bonded to the oral enamel using a mold that was filled with a chemically curing (Maximum Cure, Transbond IDB Premix) or a dual-curing (Nexus NX3, RelyX Unicem2) attachment material. SBS was tested after 24 h, 500 thermal cycles or 90 days at 37 °C with a universal testing machine. Computed tomography scans were performed to determine the bonded surface and calculate SBS. Values ranged from 8.3 to 20.9 MPa. RelyX Unicem2 showed the highest SBS values at baseline, 500 thermal cycles and after 90 days (p < 0.001). Ninety days of wet storage significantly reduced SBS of Maximum Cure (p = 0.028). The radius of curvature correlated positively with SBS (r s = 0.204, p = 0.005). The SBS of all attachment materials was sufficient for clinical use, even after artificial aging. RelyX Unicem2 showed almost twice as high SBS values as the other attachment materials.Rebecca JungbauerPaul Al-BurgholMartin RosentrittChristian KirschneckPeter ProffFriedrich PaulsenChristian M. HammerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Rebecca Jungbauer Paul Al-Burghol Martin Rosentritt Christian Kirschneck Peter Proff Friedrich Paulsen Christian M. Hammer Curvature-dependent shear bond strength of different attachment materials for orthodontic lingual indirect bonding
description	Abstract To evaluate the shear bond strength (SBS) of different attachment materials used for lingual bonding, the influence of artificial aging and the radii of curvature of the enamel surface on SBS, 192 third molars were photographed to determine the radius of curvature of the oral surface. After phosphoric acid etching a cylindrical test piece was bonded to the oral enamel using a mold that was filled with a chemically curing (Maximum Cure, Transbond IDB Premix) or a dual-curing (Nexus NX3, RelyX Unicem2) attachment material. SBS was tested after 24 h, 500 thermal cycles or 90 days at 37 °C with a universal testing machine. Computed tomography scans were performed to determine the bonded surface and calculate SBS. Values ranged from 8.3 to 20.9 MPa. RelyX Unicem2 showed the highest SBS values at baseline, 500 thermal cycles and after 90 days (p < 0.001). Ninety days of wet storage significantly reduced SBS of Maximum Cure (p = 0.028). The radius of curvature correlated positively with SBS (r s = 0.204, p = 0.005). The SBS of all attachment materials was sufficient for clinical use, even after artificial aging. RelyX Unicem2 showed almost twice as high SBS values as the other attachment materials.
format	article
author	Rebecca Jungbauer Paul Al-Burghol Martin Rosentritt Christian Kirschneck Peter Proff Friedrich Paulsen Christian M. Hammer
author_facet	Rebecca Jungbauer Paul Al-Burghol Martin Rosentritt Christian Kirschneck Peter Proff Friedrich Paulsen Christian M. Hammer
author_sort	Rebecca Jungbauer
title	Curvature-dependent shear bond strength of different attachment materials for orthodontic lingual indirect bonding
title_short	Curvature-dependent shear bond strength of different attachment materials for orthodontic lingual indirect bonding
title_full	Curvature-dependent shear bond strength of different attachment materials for orthodontic lingual indirect bonding
title_fullStr	Curvature-dependent shear bond strength of different attachment materials for orthodontic lingual indirect bonding
title_full_unstemmed	Curvature-dependent shear bond strength of different attachment materials for orthodontic lingual indirect bonding
title_sort	curvature-dependent shear bond strength of different attachment materials for orthodontic lingual indirect bonding
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0ef96dfc34a442af9a38c135c5c878b9
work_keys_str_mv	AT rebeccajungbauer curvaturedependentshearbondstrengthofdifferentattachmentmaterialsfororthodonticlingualindirectbonding AT paulalburghol curvaturedependentshearbondstrengthofdifferentattachmentmaterialsfororthodonticlingualindirectbonding AT martinrosentritt curvaturedependentshearbondstrengthofdifferentattachmentmaterialsfororthodonticlingualindirectbonding AT christiankirschneck curvaturedependentshearbondstrengthofdifferentattachmentmaterialsfororthodonticlingualindirectbonding AT peterproff curvaturedependentshearbondstrengthofdifferentattachmentmaterialsfororthodonticlingualindirectbonding AT friedrichpaulsen curvaturedependentshearbondstrengthofdifferentattachmentmaterialsfororthodonticlingualindirectbonding AT christianmhammer curvaturedependentshearbondstrengthofdifferentattachmentmaterialsfororthodonticlingualindirectbonding
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Curvature-dependent shear bond strength of different attachment materials for orthodontic lingual indirect bonding

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