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Exploring the use of pulsed erbium lasers to retrieve a zirconia crown from a zirconia implant abutment
BACKGROUND: Removal of cement-retained implant fixed restorations when needed, can be challenging. Conventional methods of crown removal are time consuming and costly for patients and practitioners. This research explored the use of two different types of pulsed erbium lasers as a non-invasive tool...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7263620/ https://www.ncbi.nlm.nih.gov/pubmed/32479553 http://dx.doi.org/10.1371/journal.pone.0233536 |
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author | Elkharashi, Ahmed Grzech-Leśniak, Kinga Deeb, Janina Golob Abdulmajeed, Aous A. Bencharit, Sompop |
author_facet | Elkharashi, Ahmed Grzech-Leśniak, Kinga Deeb, Janina Golob Abdulmajeed, Aous A. Bencharit, Sompop |
author_sort | Elkharashi, Ahmed |
collection | PubMed |
description | BACKGROUND: Removal of cement-retained implant fixed restorations when needed, can be challenging. Conventional methods of crown removal are time consuming and costly for patients and practitioners. This research explored the use of two different types of pulsed erbium lasers as a non-invasive tool to retrieve cemented zirconia crowns from zirconia implant abutments. MATERIALS AND METHODS: Twenty identical zirconia crowns were cemented onto 20 identical zirconia prefabricated abutments using self-adhesive resin cement. The specimens were divided into two groups for laser assisted crown removal; G1 for erbium-doped yttrium aluminum garnet laser (Er:YAG), and G2 for erbium, chromium-doped yttrium, scandium, gallium and garnet (Er,Cr:YSGG). For the G1, after the first crown removal, the specimens were re-cemented and removed again using the Er:YAG laser. Times needed to remove the crowns were recorded and analyzed using ANOVA (α = 0.05). The surfaces of the crown and the abutment were further examined using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) analyses. RESULTS: The average times of zirconia crown removal from zirconia abutments were 5 min 20 sec and 5 min 15 sec for the Er:YAG laser of first and second experiments (G1), and 5 min 55 sec for the Er,Cr:YSGG laser experiment (G2). No statistical differences were observed among the groups. SEM and EDS examinations of the materials showed no visual surface damaging or material alteration from the two pulsed erbium lasers. CONCLUSIONS: Both types of pulsed erbium lasers can be viable alternatives for retrieving a zirconia crown from a zirconia implant abutment. Despite operating at different wavelengths, the Er:YAG and Er,Cr:YSGG lasers, perform similarly in removing a zirconia crown from a zirconia implant abutment with similar parameters. There are no visual and elemental composition damages as a result of irradiation with pulsed erbium lasers. |
format | Online Article Text |
id | pubmed-7263620 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-72636202020-06-10 Exploring the use of pulsed erbium lasers to retrieve a zirconia crown from a zirconia implant abutment Elkharashi, Ahmed Grzech-Leśniak, Kinga Deeb, Janina Golob Abdulmajeed, Aous A. Bencharit, Sompop PLoS One Research Article BACKGROUND: Removal of cement-retained implant fixed restorations when needed, can be challenging. Conventional methods of crown removal are time consuming and costly for patients and practitioners. This research explored the use of two different types of pulsed erbium lasers as a non-invasive tool to retrieve cemented zirconia crowns from zirconia implant abutments. MATERIALS AND METHODS: Twenty identical zirconia crowns were cemented onto 20 identical zirconia prefabricated abutments using self-adhesive resin cement. The specimens were divided into two groups for laser assisted crown removal; G1 for erbium-doped yttrium aluminum garnet laser (Er:YAG), and G2 for erbium, chromium-doped yttrium, scandium, gallium and garnet (Er,Cr:YSGG). For the G1, after the first crown removal, the specimens were re-cemented and removed again using the Er:YAG laser. Times needed to remove the crowns were recorded and analyzed using ANOVA (α = 0.05). The surfaces of the crown and the abutment were further examined using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) analyses. RESULTS: The average times of zirconia crown removal from zirconia abutments were 5 min 20 sec and 5 min 15 sec for the Er:YAG laser of first and second experiments (G1), and 5 min 55 sec for the Er,Cr:YSGG laser experiment (G2). No statistical differences were observed among the groups. SEM and EDS examinations of the materials showed no visual surface damaging or material alteration from the two pulsed erbium lasers. CONCLUSIONS: Both types of pulsed erbium lasers can be viable alternatives for retrieving a zirconia crown from a zirconia implant abutment. Despite operating at different wavelengths, the Er:YAG and Er,Cr:YSGG lasers, perform similarly in removing a zirconia crown from a zirconia implant abutment with similar parameters. There are no visual and elemental composition damages as a result of irradiation with pulsed erbium lasers. Public Library of Science 2020-06-01 /pmc/articles/PMC7263620/ /pubmed/32479553 http://dx.doi.org/10.1371/journal.pone.0233536 Text en © 2020 Elkharashi et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Elkharashi, Ahmed Grzech-Leśniak, Kinga Deeb, Janina Golob Abdulmajeed, Aous A. Bencharit, Sompop Exploring the use of pulsed erbium lasers to retrieve a zirconia crown from a zirconia implant abutment |
title | Exploring the use of pulsed erbium lasers to retrieve a zirconia crown from a zirconia implant abutment |
title_full | Exploring the use of pulsed erbium lasers to retrieve a zirconia crown from a zirconia implant abutment |
title_fullStr | Exploring the use of pulsed erbium lasers to retrieve a zirconia crown from a zirconia implant abutment |
title_full_unstemmed | Exploring the use of pulsed erbium lasers to retrieve a zirconia crown from a zirconia implant abutment |
title_short | Exploring the use of pulsed erbium lasers to retrieve a zirconia crown from a zirconia implant abutment |
title_sort | exploring the use of pulsed erbium lasers to retrieve a zirconia crown from a zirconia implant abutment |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7263620/ https://www.ncbi.nlm.nih.gov/pubmed/32479553 http://dx.doi.org/10.1371/journal.pone.0233536 |
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