Effect of operators' experience and cement space on the marginal fit of an in-office digitally produced monolithic ceramic crown system

Objectives: To investigate the marginal accuracy of Cerec three-dimensional (3D) all-ceramic crowns, in terms of gap and overhang, and to analyze the "operators' experience" and "cement space" effects on the marginal fit. Method and Materials: Thirty virtual models were ob...

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Main Authors:	Baig, Mirza Rustum, Gonzalez, Maria Angela G., Abu Kasim, Noor Hayaty, Abu Kassim, Noor Lide, Farook, Mohideen Salihu
Other Authors:	Rob F. Poell, Rob F. Poell
Format:	Article
Language:	English English English
Published:	Quintessence Publishing Co. Inc. 2016
Subjects:	RK Dentistry
Online Access:	http://irep.iium.edu.my/55977/ http://irep.iium.edu.my/55977/ http://irep.iium.edu.my/55977/ http://irep.iium.edu.my/55977/1/55977_Effect%20of%20operators%27%20experience.pdf http://irep.iium.edu.my/55977/2/55977_Effect%20of%20operators%27%20experience_SCOPUS.pdf http://irep.iium.edu.my/55977/3/55977_Effect%20of%20operators%27%20experience_WOS.pdf

id	iium-55977
recordtype	eprints
spelling	iium-559772017-07-18T04:23:45Z http://irep.iium.edu.my/55977/ Effect of operators' experience and cement space on the marginal fit of an in-office digitally produced monolithic ceramic crown system Baig, Mirza Rustum Gonzalez, Maria Angela G. Abu Kasim, Noor Hayaty Abu Kassim, Noor Lide Farook, Mohideen Salihu RK Dentistry Objectives: To investigate the marginal accuracy of Cerec three-dimensional (3D) all-ceramic crowns, in terms of gap and overhang, and to analyze the "operators' experience" and "cement space" effects on the marginal fit. Method and Materials: Thirty virtual models were obtained from a metal master die by scanning by three different operators: operator 1 (novice), operator 2 (beginner), and operator 3 (expert) (n = 10). These were further divided into two subgroups of five each, based on the cement space settings: 10 μm and 20 μm. Monolithic ceramic crowns (n = 10) were designed and milled for each virtual model and subjected to marginal gap and overhang evaluation at six designated margin locations. The influence of operators' experience and cement space on the marginal fit of the crowns was assessed by performing Box tests and MANOVA (multiple analysis of variance) (α = .05). Kruskal Wallis test was also used to analyze the interactions between the operators' experience and the cement space. Results: The overall mean ± SD marginal gaps and overhangs for the Cerec 3D crowns, were 154 ± 56 μm and 74 ± 74 μm for novice, 158 ± 53 μm and 86 ± 66 μm for beginner, and 155 ± 52 μm and 47 ± 76 μm for expert, respectively. The MANOVA and Kruskal Wallis tests found no significant differences (P > .05) between the operators, in terms of gap and overhang, for all cement settings. Conclusion: The operator experience did not seem to influence the marginal accuracy of Cerec 3D fabricated crowns. Quintessence Publishing Co. Inc. Rob F. Poell, Rob F. Poell Tonette S. Rocco, Tonette S. Rocco Gene L. Roth, Gene L. Roth 2016-03 Article PeerReviewed application/pdf en http://irep.iium.edu.my/55977/1/55977_Effect%20of%20operators%27%20experience.pdf application/pdf en http://irep.iium.edu.my/55977/2/55977_Effect%20of%20operators%27%20experience_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/55977/3/55977_Effect%20of%20operators%27%20experience_WOS.pdf Baig, Mirza Rustum and Gonzalez, Maria Angela G. and Abu Kasim, Noor Hayaty and Abu Kassim, Noor Lide and Farook, Mohideen Salihu (2016) Effect of operators' experience and cement space on the marginal fit of an in-office digitally produced monolithic ceramic crown system. Quintessence International, 47 (3). pp. 181-191. ISSN 0033-6572 E-ISSN 1936-7163 http://qi.quintessenz.de/index.php?doc=abstract&abstractID=34722/ 10.3290/j.qi.a34722
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	RK Dentistry
spellingShingle	RK Dentistry Baig, Mirza Rustum Gonzalez, Maria Angela G. Abu Kasim, Noor Hayaty Abu Kassim, Noor Lide Farook, Mohideen Salihu Effect of operators' experience and cement space on the marginal fit of an in-office digitally produced monolithic ceramic crown system
description	Objectives: To investigate the marginal accuracy of Cerec three-dimensional (3D) all-ceramic crowns, in terms of gap and overhang, and to analyze the "operators' experience" and "cement space" effects on the marginal fit. Method and Materials: Thirty virtual models were obtained from a metal master die by scanning by three different operators: operator 1 (novice), operator 2 (beginner), and operator 3 (expert) (n = 10). These were further divided into two subgroups of five each, based on the cement space settings: 10 μm and 20 μm. Monolithic ceramic crowns (n = 10) were designed and milled for each virtual model and subjected to marginal gap and overhang evaluation at six designated margin locations. The influence of operators' experience and cement space on the marginal fit of the crowns was assessed by performing Box tests and MANOVA (multiple analysis of variance) (α = .05). Kruskal Wallis test was also used to analyze the interactions between the operators' experience and the cement space. Results: The overall mean ± SD marginal gaps and overhangs for the Cerec 3D crowns, were 154 ± 56 μm and 74 ± 74 μm for novice, 158 ± 53 μm and 86 ± 66 μm for beginner, and 155 ± 52 μm and 47 ± 76 μm for expert, respectively. The MANOVA and Kruskal Wallis tests found no significant differences (P > .05) between the operators, in terms of gap and overhang, for all cement settings. Conclusion: The operator experience did not seem to influence the marginal accuracy of Cerec 3D fabricated crowns.
author2	Rob F. Poell, Rob F. Poell
author_facet	Rob F. Poell, Rob F. Poell Baig, Mirza Rustum Gonzalez, Maria Angela G. Abu Kasim, Noor Hayaty Abu Kassim, Noor Lide Farook, Mohideen Salihu
format	Article
author	Baig, Mirza Rustum Gonzalez, Maria Angela G. Abu Kasim, Noor Hayaty Abu Kassim, Noor Lide Farook, Mohideen Salihu
author_sort	Baig, Mirza Rustum
title	Effect of operators' experience and cement space on the marginal fit of an in-office digitally produced monolithic ceramic crown system
title_short	Effect of operators' experience and cement space on the marginal fit of an in-office digitally produced monolithic ceramic crown system
title_full	Effect of operators' experience and cement space on the marginal fit of an in-office digitally produced monolithic ceramic crown system
title_fullStr	Effect of operators' experience and cement space on the marginal fit of an in-office digitally produced monolithic ceramic crown system
title_full_unstemmed	Effect of operators' experience and cement space on the marginal fit of an in-office digitally produced monolithic ceramic crown system
title_sort	effect of operators' experience and cement space on the marginal fit of an in-office digitally produced monolithic ceramic crown system
publisher	Quintessence Publishing Co. Inc.
publishDate	2016
url	http://irep.iium.edu.my/55977/ http://irep.iium.edu.my/55977/ http://irep.iium.edu.my/55977/ http://irep.iium.edu.my/55977/1/55977_Effect%20of%20operators%27%20experience.pdf http://irep.iium.edu.my/55977/2/55977_Effect%20of%20operators%27%20experience_SCOPUS.pdf http://irep.iium.edu.my/55977/3/55977_Effect%20of%20operators%27%20experience_WOS.pdf
first_indexed	2023-09-18T21:18:59Z
last_indexed	2023-09-18T21:18:59Z
_version_	1777411754095017984

Effect of operators' experience and cement space on the marginal fit of an in-office digitally produced monolithic ceramic crown system

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