Comparative Study of Dental Custom CAD-CAM Implant Abutments and Dental Implant Stock Abutments

The implementation of CAD-CAM systems in dentistry has significantly influenced the evolution of dental implantology and implant-supported prosthetics within the past three decades. Implant-supported prostheses are comfortable and aesthetic. The prosthetic abutment has also faced a rapid design evol...

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Main Authors: Daniel Adrian Târtea, Mihaela Ionescu, Horia Octavian Manolea, Veronica Mercuț, Eugenia Obădan, Marina Olimpia Amărăscu, Petre Costin Mărășescu, Luminița Dăguci, Sanda Mihaela Popescu
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Journal of Clinical Medicine
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Online Access:https://www.mdpi.com/2077-0383/12/6/2128
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author Daniel Adrian Târtea
Mihaela Ionescu
Horia Octavian Manolea
Veronica Mercuț
Eugenia Obădan
Marina Olimpia Amărăscu
Petre Costin Mărășescu
Luminița Dăguci
Sanda Mihaela Popescu
author_facet Daniel Adrian Târtea
Mihaela Ionescu
Horia Octavian Manolea
Veronica Mercuț
Eugenia Obădan
Marina Olimpia Amărăscu
Petre Costin Mărășescu
Luminița Dăguci
Sanda Mihaela Popescu
author_sort Daniel Adrian Târtea
collection DOAJ
description The implementation of CAD-CAM systems in dentistry has significantly influenced the evolution of dental implantology and implant-supported prosthetics within the past three decades. Implant-supported prostheses are comfortable and aesthetic. The prosthetic abutment has also faced a rapid design evolution, from the individualization of standard stock abutments offered by various manufacturers to a modern customization process using CAD-CAM technology. This paper presents a comparative study between 20 dental custom CAD-CAM implant abutments and 20 dental implant stock abutments, based on a set of measurements performed on the digital casts obtained from 24 cases of prosthetic rehabilitation on implants. The statistical analysis (Mann–Whitney U test) revealed significant differences between these two types of abutments: the incisal margin line diameter dimensions for custom abutments were significantly improved compared to standard abutments at the cervical level (U = 343.00, z = 3.868, <i>p</i> < 0.0005) and the incisal/occlusal level (U = 352.00, z = 4.112, <i>p</i> < 0.0005), while the inclination angle of the custom abutments relative to the 0-axis was significantly smaller than that of standard abutments (U = 115.50, z = −2.286, <i>p</i> = 0.022). The use of custom abutments leads to an increase in the final size of the abutment, an improvement in the retention of the prosthetic work, and reduces the angulation of the abutment in relation to the implant axis, thus decreasing the risk of unscrewing or fracturing the dental screw.
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spelling doaj.art-8a3a5281cda4477cbcfca5ebcc9336d22023-11-17T11:48:27ZengMDPI AGJournal of Clinical Medicine2077-03832023-03-01126212810.3390/jcm12062128Comparative Study of Dental Custom CAD-CAM Implant Abutments and Dental Implant Stock AbutmentsDaniel Adrian Târtea0Mihaela Ionescu1Horia Octavian Manolea2Veronica Mercuț3Eugenia Obădan4Marina Olimpia Amărăscu5Petre Costin Mărășescu6Luminița Dăguci7Sanda Mihaela Popescu8Department of Oral Rehabilitation, University of Medicine and Pharmacy of Craiova, 200349 Craiova, RomaniaDepartment of Medical Informatics and Biostatistics, University of Medicine and Pharmacy of Craiova, 200349 Craiova, RomaniaDepartment of Dental Materials, University of Medicine and Pharmacy of Craiova, 200349 Craiova, RomaniaDepartment of Dental Prosthetics, University of Medicine and Pharmacy of Craiova, 200349 Craiova, RomaniaDepartment of Dental Materials, University of Medicine and Pharmacy of Craiova, 200349 Craiova, RomaniaDepartment of Dental Morphology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, RomaniaDepartment of Dental Technology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, RomaniaDepartment of Dental Prosthetics, University of Medicine and Pharmacy of Craiova, 200349 Craiova, RomaniaDepartment of Oral Rehabilitation, University of Medicine and Pharmacy of Craiova, 200349 Craiova, RomaniaThe implementation of CAD-CAM systems in dentistry has significantly influenced the evolution of dental implantology and implant-supported prosthetics within the past three decades. Implant-supported prostheses are comfortable and aesthetic. The prosthetic abutment has also faced a rapid design evolution, from the individualization of standard stock abutments offered by various manufacturers to a modern customization process using CAD-CAM technology. This paper presents a comparative study between 20 dental custom CAD-CAM implant abutments and 20 dental implant stock abutments, based on a set of measurements performed on the digital casts obtained from 24 cases of prosthetic rehabilitation on implants. The statistical analysis (Mann–Whitney U test) revealed significant differences between these two types of abutments: the incisal margin line diameter dimensions for custom abutments were significantly improved compared to standard abutments at the cervical level (U = 343.00, z = 3.868, <i>p</i> < 0.0005) and the incisal/occlusal level (U = 352.00, z = 4.112, <i>p</i> < 0.0005), while the inclination angle of the custom abutments relative to the 0-axis was significantly smaller than that of standard abutments (U = 115.50, z = −2.286, <i>p</i> = 0.022). The use of custom abutments leads to an increase in the final size of the abutment, an improvement in the retention of the prosthetic work, and reduces the angulation of the abutment in relation to the implant axis, thus decreasing the risk of unscrewing or fracturing the dental screw.https://www.mdpi.com/2077-0383/12/6/2128dental prosthesesCAD/CAMdental technologyevaluation methods
spellingShingle Daniel Adrian Târtea
Mihaela Ionescu
Horia Octavian Manolea
Veronica Mercuț
Eugenia Obădan
Marina Olimpia Amărăscu
Petre Costin Mărășescu
Luminița Dăguci
Sanda Mihaela Popescu
Comparative Study of Dental Custom CAD-CAM Implant Abutments and Dental Implant Stock Abutments
Journal of Clinical Medicine
dental prostheses
CAD/CAM
dental technology
evaluation methods
title Comparative Study of Dental Custom CAD-CAM Implant Abutments and Dental Implant Stock Abutments
title_full Comparative Study of Dental Custom CAD-CAM Implant Abutments and Dental Implant Stock Abutments
title_fullStr Comparative Study of Dental Custom CAD-CAM Implant Abutments and Dental Implant Stock Abutments
title_full_unstemmed Comparative Study of Dental Custom CAD-CAM Implant Abutments and Dental Implant Stock Abutments
title_short Comparative Study of Dental Custom CAD-CAM Implant Abutments and Dental Implant Stock Abutments
title_sort comparative study of dental custom cad cam implant abutments and dental implant stock abutments
topic dental prostheses
CAD/CAM
dental technology
evaluation methods
url https://www.mdpi.com/2077-0383/12/6/2128
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