Marginal and Internal Adaptation Evaluation of Dental Composites Using Micro-CT

The aim of the study was to determine the marginal and internal adaptation after curing of different composite resin restorations, using a nondestructive X-ray micro-computed tomography (micro-CT). Forty previously extracted human molars, kept in 10% formalin to preserve the bonding capabilities of...

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Main Authors: Adrian Tudor Stan, Laura Cîrligeriu, Laura Idorași, Meda Lavinia Negruțiu, Cosmin Sinescu, Daniela Maria Pop, Tareq Hajaj, Şerban Talpoș, Mihai Romînu
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2019/5010319
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author Adrian Tudor Stan
Laura Cîrligeriu
Laura Idorași
Meda Lavinia Negruțiu
Cosmin Sinescu
Daniela Maria Pop
Tareq Hajaj
Şerban Talpoș
Mihai Romînu
author_facet Adrian Tudor Stan
Laura Cîrligeriu
Laura Idorași
Meda Lavinia Negruțiu
Cosmin Sinescu
Daniela Maria Pop
Tareq Hajaj
Şerban Talpoș
Mihai Romînu
author_sort Adrian Tudor Stan
collection DOAJ
description The aim of the study was to determine the marginal and internal adaptation after curing of different composite resin restorations, using a nondestructive X-ray micro-computed tomography (micro-CT). Forty previously extracted human molars, kept in 10% formalin to preserve the bonding capabilities of the tooth structures, were divided into four groups based on the composite system used and different light-curing times. Class II (vertical slot) cavities were prepared on one proximal side and restored with dental composite using a Tofflemire matrix, with a bulk-fill composite resin (Venus Bulk Fill, Heraeus Kulzer) and a universal posterior composite (G-ænial Posterior, GC). A curing lamp (Kerr Demi Ultra) was used with different curing times. Micro-CT scanning was performed by using Nikon XTH 225ST to reveal any defects in adaptation or gaps at the tooth restoration interface. The 3D images of the adaptation around the restorations were reconstructed using VG Studio Max 2.2 and myVGL 2.2.6 64-bit software. All samples from the G-ænial group showed marginal and internal gaps, with G-ænial Posterior having higher polymerization shrinkage and marginal gap values. In the Venus Bulk Fill group, there were fewer restorations with internal and external gap formation. Micro-CT is a three-dimensional imaging technique that can nondestructively detect adaptation around the resin composite restorations at every level of the sample.
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spelling doaj-art-5d6b5e22314f40a4a83d8979e62fd7632025-02-03T00:59:40ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422019-01-01201910.1155/2019/50103195010319Marginal and Internal Adaptation Evaluation of Dental Composites Using Micro-CTAdrian Tudor Stan0Laura Cîrligeriu1Laura Idorași2Meda Lavinia Negruțiu3Cosmin Sinescu4Daniela Maria Pop5Tareq Hajaj6Şerban Talpoș7Mihai Romînu8Victor Babes University of Medicine and Pharmacy, Faculty of Dental Medicine, Department of Prosthesis Technology and Dental Materials, 2 Eftimie Murgu Sq., 300041 Timisoara, RomaniaVictor Babes University of Medicine and Pharmacy, Faculty of Dental Medicine, Department of Operative Dentistry and Endodontics, 2 Eftimie Murgu Sq., 300041 Timisoara, RomaniaVictor Babes University of Medicine and Pharmacy, Faculty of Dental Medicine, Department of Prosthesis Technology and Dental Materials, 2 Eftimie Murgu Sq., 300041 Timisoara, RomaniaVictor Babes University of Medicine and Pharmacy, Faculty of Dental Medicine, Department of Prosthesis Technology and Dental Materials, 2 Eftimie Murgu Sq., 300041 Timisoara, RomaniaVictor Babes University of Medicine and Pharmacy, Faculty of Dental Medicine, Department of Prosthesis Technology and Dental Materials, 2 Eftimie Murgu Sq., 300041 Timisoara, RomaniaVictor Babes University of Medicine and Pharmacy, Faculty of Dental Medicine, Department of Prosthesis Technology and Dental Materials, 2 Eftimie Murgu Sq., 300041 Timisoara, RomaniaVictor Babes University of Medicine and Pharmacy, Faculty of Dental Medicine, Department of Prosthesis Technology and Dental Materials, 2 Eftimie Murgu Sq., 300041 Timisoara, RomaniaVictor Babes University of Medicine and Pharmacy, Faculty of Dental Medicine, Department of Oral and Maxillofacial Surgery, 2 Eftimie Murgu Sq., 300041 Timisoara, RomaniaVictor Babes University of Medicine and Pharmacy, Faculty of Dental Medicine, Department of Prosthesis Technology and Dental Materials, 2 Eftimie Murgu Sq., 300041 Timisoara, RomaniaThe aim of the study was to determine the marginal and internal adaptation after curing of different composite resin restorations, using a nondestructive X-ray micro-computed tomography (micro-CT). Forty previously extracted human molars, kept in 10% formalin to preserve the bonding capabilities of the tooth structures, were divided into four groups based on the composite system used and different light-curing times. Class II (vertical slot) cavities were prepared on one proximal side and restored with dental composite using a Tofflemire matrix, with a bulk-fill composite resin (Venus Bulk Fill, Heraeus Kulzer) and a universal posterior composite (G-ænial Posterior, GC). A curing lamp (Kerr Demi Ultra) was used with different curing times. Micro-CT scanning was performed by using Nikon XTH 225ST to reveal any defects in adaptation or gaps at the tooth restoration interface. The 3D images of the adaptation around the restorations were reconstructed using VG Studio Max 2.2 and myVGL 2.2.6 64-bit software. All samples from the G-ænial group showed marginal and internal gaps, with G-ænial Posterior having higher polymerization shrinkage and marginal gap values. In the Venus Bulk Fill group, there were fewer restorations with internal and external gap formation. Micro-CT is a three-dimensional imaging technique that can nondestructively detect adaptation around the resin composite restorations at every level of the sample.http://dx.doi.org/10.1155/2019/5010319
spellingShingle Adrian Tudor Stan
Laura Cîrligeriu
Laura Idorași
Meda Lavinia Negruțiu
Cosmin Sinescu
Daniela Maria Pop
Tareq Hajaj
Şerban Talpoș
Mihai Romînu
Marginal and Internal Adaptation Evaluation of Dental Composites Using Micro-CT
Advances in Materials Science and Engineering
title Marginal and Internal Adaptation Evaluation of Dental Composites Using Micro-CT
title_full Marginal and Internal Adaptation Evaluation of Dental Composites Using Micro-CT
title_fullStr Marginal and Internal Adaptation Evaluation of Dental Composites Using Micro-CT
title_full_unstemmed Marginal and Internal Adaptation Evaluation of Dental Composites Using Micro-CT
title_short Marginal and Internal Adaptation Evaluation of Dental Composites Using Micro-CT
title_sort marginal and internal adaptation evaluation of dental composites using micro ct
url http://dx.doi.org/10.1155/2019/5010319
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