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Volumetric variation of peri-implant soft tissues in convergent collar implants and crowns using the biologically oriented preparation technique (BOPT)

BACKGROUND: To evaluate the changes in the peri-implant soft tissues of convergent collar implants with biologically oriented preparation technique (BOPT) crowns, 10 months after loading. MATERIAL AND METHODS: A pilot study was carried out from January 2016 to October 2017 involving 14 patients with...

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Autores principales: Cabanes-Gumbau, Guillermo, Pascual-Moscardó, Agustín, Peñarrocha-Oltra, David, García-Mira, Berta, Aizcorbe-Vicente, Javier, Peñarrocha-Diago, María
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medicina Oral S.L. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6764706/
https://www.ncbi.nlm.nih.gov/pubmed/31422410
http://dx.doi.org/10.4317/medoral.22946
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author Cabanes-Gumbau, Guillermo
Pascual-Moscardó, Agustín
Peñarrocha-Oltra, David
García-Mira, Berta
Aizcorbe-Vicente, Javier
Peñarrocha-Diago, María
author_facet Cabanes-Gumbau, Guillermo
Pascual-Moscardó, Agustín
Peñarrocha-Oltra, David
García-Mira, Berta
Aizcorbe-Vicente, Javier
Peñarrocha-Diago, María
author_sort Cabanes-Gumbau, Guillermo
collection PubMed
description BACKGROUND: To evaluate the changes in the peri-implant soft tissues of convergent collar implants with biologically oriented preparation technique (BOPT) crowns, 10 months after loading. MATERIAL AND METHODS: A pilot study was carried out from January 2016 to October 2017 involving 14 patients with one or two implants in the posterior mandibular sector. A total of 32 convergent collar implants were placed using a non-submerged protocol. Three months later the provisional cemented crowns were fitted using the BOPT approach with the finish line 1-1.5 mm below the gingival margin, simulating coronal emergence of a natural tooth. The soft tissue changes were measured with an intraoral scanner at two different timepoints: a) on the day of provisionalization, before prosthetic loading; and b) 10 months later without the provisional prosthesis. The STL files were superimposed and the soft tissue changes were recorded using a color scale with measurement of the volumetric changes in mm3. RESULTS: A mean increase in peri-implant mucosal volume of 64.7 mm3 was observed in 29 implants. The zones with the greatest increase in soft tissue volume were the papillae of implants with adjacent teeth and the peri-implant buccal margin. Three implants showed a mean decrease in soft tissue volume of -25.1 mm3. CONCLUSIONS: The fitting and design of crowns using the biologically oriented preparation technique (BOPT) over convergent collar implants affords a significant increase in peri-implant soft tissue volume both at the level of the papillae and in the buccal margin. Key words:Dental implants, one-piece dental implants, convergent collar implants, soft tissue volume, peri-implant mucosa, BOPT, vertical preparation, shoulderless abutments, emergence profile, intraoral scanner, profilometric analysis.
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spelling pubmed-67647062019-10-02 Volumetric variation of peri-implant soft tissues in convergent collar implants and crowns using the biologically oriented preparation technique (BOPT) Cabanes-Gumbau, Guillermo Pascual-Moscardó, Agustín Peñarrocha-Oltra, David García-Mira, Berta Aizcorbe-Vicente, Javier Peñarrocha-Diago, María Med Oral Patol Oral Cir Bucal Research BACKGROUND: To evaluate the changes in the peri-implant soft tissues of convergent collar implants with biologically oriented preparation technique (BOPT) crowns, 10 months after loading. MATERIAL AND METHODS: A pilot study was carried out from January 2016 to October 2017 involving 14 patients with one or two implants in the posterior mandibular sector. A total of 32 convergent collar implants were placed using a non-submerged protocol. Three months later the provisional cemented crowns were fitted using the BOPT approach with the finish line 1-1.5 mm below the gingival margin, simulating coronal emergence of a natural tooth. The soft tissue changes were measured with an intraoral scanner at two different timepoints: a) on the day of provisionalization, before prosthetic loading; and b) 10 months later without the provisional prosthesis. The STL files were superimposed and the soft tissue changes were recorded using a color scale with measurement of the volumetric changes in mm3. RESULTS: A mean increase in peri-implant mucosal volume of 64.7 mm3 was observed in 29 implants. The zones with the greatest increase in soft tissue volume were the papillae of implants with adjacent teeth and the peri-implant buccal margin. Three implants showed a mean decrease in soft tissue volume of -25.1 mm3. CONCLUSIONS: The fitting and design of crowns using the biologically oriented preparation technique (BOPT) over convergent collar implants affords a significant increase in peri-implant soft tissue volume both at the level of the papillae and in the buccal margin. Key words:Dental implants, one-piece dental implants, convergent collar implants, soft tissue volume, peri-implant mucosa, BOPT, vertical preparation, shoulderless abutments, emergence profile, intraoral scanner, profilometric analysis. Medicina Oral S.L. 2019-09 2019-08-18 /pmc/articles/PMC6764706/ /pubmed/31422410 http://dx.doi.org/10.4317/medoral.22946 Text en Copyright: © 2019 Medicina Oral S.L. http://creativecommons.org/licenses/by/2.5/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research
Cabanes-Gumbau, Guillermo
Pascual-Moscardó, Agustín
Peñarrocha-Oltra, David
García-Mira, Berta
Aizcorbe-Vicente, Javier
Peñarrocha-Diago, María
Volumetric variation of peri-implant soft tissues in convergent collar implants and crowns using the biologically oriented preparation technique (BOPT)
title Volumetric variation of peri-implant soft tissues in convergent collar implants and crowns using the biologically oriented preparation technique (BOPT)
title_full Volumetric variation of peri-implant soft tissues in convergent collar implants and crowns using the biologically oriented preparation technique (BOPT)
title_fullStr Volumetric variation of peri-implant soft tissues in convergent collar implants and crowns using the biologically oriented preparation technique (BOPT)
title_full_unstemmed Volumetric variation of peri-implant soft tissues in convergent collar implants and crowns using the biologically oriented preparation technique (BOPT)
title_short Volumetric variation of peri-implant soft tissues in convergent collar implants and crowns using the biologically oriented preparation technique (BOPT)
title_sort volumetric variation of peri-implant soft tissues in convergent collar implants and crowns using the biologically oriented preparation technique (bopt)
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6764706/
https://www.ncbi.nlm.nih.gov/pubmed/31422410
http://dx.doi.org/10.4317/medoral.22946
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