Screwed Monolithic Zirconia Crowns for Mono-Implant Posterior Rehabilitation: A Prospective Clinical Study on 41 Patients with a 7-Year Follow-Up

The usage of monolithic zirconia has been increasing in daily practice in dentistry for the last 20 years. Monolithic zirconia is mainly used for posterior sector rehabilitation, as it lacks optical properties and has good technical properties; it does not chip and reduces antagonist wear compared t...

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Main Authors: Giuseppe Barile, Saverio Capodiferro, Giovanni De Rosa, Giovannino Muci, Alessandro Vanzanelli, Massimo Corsalini
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Prosthesis
Subjects:
Online Access:https://www.mdpi.com/2673-1592/5/4/72
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author Giuseppe Barile
Saverio Capodiferro
Giovanni De Rosa
Giovannino Muci
Alessandro Vanzanelli
Massimo Corsalini
author_facet Giuseppe Barile
Saverio Capodiferro
Giovanni De Rosa
Giovannino Muci
Alessandro Vanzanelli
Massimo Corsalini
author_sort Giuseppe Barile
collection DOAJ
description The usage of monolithic zirconia has been increasing in daily practice in dentistry for the last 20 years. Monolithic zirconia is mainly used for posterior sector rehabilitation, as it lacks optical properties and has good technical properties; it does not chip and reduces antagonist wear compared to metal–ceramic prostheses. However, monolithic zirconia may present some issues, mainly low-temperature degradation (LTD), also known as “aging”, which must be considered and investigated in clinical studies with prolonged follow-up periods. The aim of this study was the aesthetic and functional evaluation of single monolithic zirconia crowns that were screwed onto implants for posterior dental rehabilitation using USPHS parameters and a long follow-up period of 7 years. The results showed that the USPHS scoring reduces year by year, passing from 100% excellence between the first and fourth years of observation, to 88% excellence and 12% success in the seventh year. Screw abutment loosening was the only technical adversity reported; no implant failure, crown fracture, or irreparable damage were additionally registered. Considering the emerging results and comparing them with the data available in the literature, the authors suggest that monolithic zirconia crowns could be considered as a valid alternative to classic metal–ceramic rehabilitations for the rehabilitation of posterior sectors.
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spelling doaj.art-1edb64756b524a86a3bbb2606fbf7f8a2023-12-22T14:37:51ZengMDPI AGProsthesis2673-15922023-10-01541037104810.3390/prosthesis5040072Screwed Monolithic Zirconia Crowns for Mono-Implant Posterior Rehabilitation: A Prospective Clinical Study on 41 Patients with a 7-Year Follow-UpGiuseppe Barile0Saverio Capodiferro1Giovanni De Rosa2Giovannino Muci3Alessandro Vanzanelli4Massimo Corsalini5Department of Interdisciplinary Medicine, ‘Aldo Moro’, University of Bari, 70100 Bari, ItalyDepartment of Interdisciplinary Medicine, ‘Aldo Moro’, University of Bari, 70100 Bari, ItalyDepartment of Interdisciplinary Medicine, ‘Aldo Moro’, University of Bari, 70100 Bari, ItalyDepartment of Prosthetic Dentistry, Dental School of Bari, University of Bari, 70100 Bari, ItalyDepartment of Prosthetic Dentistry, Dental School of Bari, University of Bari, 70100 Bari, ItalyDepartment of Interdisciplinary Medicine, ‘Aldo Moro’, University of Bari, 70100 Bari, ItalyThe usage of monolithic zirconia has been increasing in daily practice in dentistry for the last 20 years. Monolithic zirconia is mainly used for posterior sector rehabilitation, as it lacks optical properties and has good technical properties; it does not chip and reduces antagonist wear compared to metal–ceramic prostheses. However, monolithic zirconia may present some issues, mainly low-temperature degradation (LTD), also known as “aging”, which must be considered and investigated in clinical studies with prolonged follow-up periods. The aim of this study was the aesthetic and functional evaluation of single monolithic zirconia crowns that were screwed onto implants for posterior dental rehabilitation using USPHS parameters and a long follow-up period of 7 years. The results showed that the USPHS scoring reduces year by year, passing from 100% excellence between the first and fourth years of observation, to 88% excellence and 12% success in the seventh year. Screw abutment loosening was the only technical adversity reported; no implant failure, crown fracture, or irreparable damage were additionally registered. Considering the emerging results and comparing them with the data available in the literature, the authors suggest that monolithic zirconia crowns could be considered as a valid alternative to classic metal–ceramic rehabilitations for the rehabilitation of posterior sectors.https://www.mdpi.com/2673-1592/5/4/72monolithic zirconiaimplantdental prosthesissingle crownUSPHS
spellingShingle Giuseppe Barile
Saverio Capodiferro
Giovanni De Rosa
Giovannino Muci
Alessandro Vanzanelli
Massimo Corsalini
Screwed Monolithic Zirconia Crowns for Mono-Implant Posterior Rehabilitation: A Prospective Clinical Study on 41 Patients with a 7-Year Follow-Up
Prosthesis
monolithic zirconia
implant
dental prosthesis
single crown
USPHS
title Screwed Monolithic Zirconia Crowns for Mono-Implant Posterior Rehabilitation: A Prospective Clinical Study on 41 Patients with a 7-Year Follow-Up
title_full Screwed Monolithic Zirconia Crowns for Mono-Implant Posterior Rehabilitation: A Prospective Clinical Study on 41 Patients with a 7-Year Follow-Up
title_fullStr Screwed Monolithic Zirconia Crowns for Mono-Implant Posterior Rehabilitation: A Prospective Clinical Study on 41 Patients with a 7-Year Follow-Up
title_full_unstemmed Screwed Monolithic Zirconia Crowns for Mono-Implant Posterior Rehabilitation: A Prospective Clinical Study on 41 Patients with a 7-Year Follow-Up
title_short Screwed Monolithic Zirconia Crowns for Mono-Implant Posterior Rehabilitation: A Prospective Clinical Study on 41 Patients with a 7-Year Follow-Up
title_sort screwed monolithic zirconia crowns for mono implant posterior rehabilitation a prospective clinical study on 41 patients with a 7 year follow up
topic monolithic zirconia
implant
dental prosthesis
single crown
USPHS
url https://www.mdpi.com/2673-1592/5/4/72
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