Cargando…

Positioning errors of dental implants and their associations with adjacent structures and anatomical variations: A CBCT-based study

PURPOSE: The objective of the present study was to evaluate the prevalence of dental implants positioning errors and their associations with adjacent structures and anatomical variations by means of cone-beam computed tomography (CBCT). MATERIALS AND METHODS: CBCT images of 207 patients (584 dental...

Descripción completa

Detalles Bibliográficos
Autores principales: Ribas, Beatriz Ribeiro, Nascimento, Eduarda Helena Leandro, Freitas, Deborah Queiroz, Pontual, Andréa dos Anjos, Pontual, Maria Luiza dos Anjos, Perez, Danyel Elias Cruz, Ramos-Perez, Flávia Maria Moraes
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Korean Academy of Oral and Maxillofacial Radiology 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7758259/
https://www.ncbi.nlm.nih.gov/pubmed/33409136
http://dx.doi.org/10.5624/isd.2020.50.4.281
_version_ 1783626902095790080
author Ribas, Beatriz Ribeiro
Nascimento, Eduarda Helena Leandro
Freitas, Deborah Queiroz
Pontual, Andréa dos Anjos
Pontual, Maria Luiza dos Anjos
Perez, Danyel Elias Cruz
Ramos-Perez, Flávia Maria Moraes
author_facet Ribas, Beatriz Ribeiro
Nascimento, Eduarda Helena Leandro
Freitas, Deborah Queiroz
Pontual, Andréa dos Anjos
Pontual, Maria Luiza dos Anjos
Perez, Danyel Elias Cruz
Ramos-Perez, Flávia Maria Moraes
author_sort Ribas, Beatriz Ribeiro
collection PubMed
description PURPOSE: The objective of the present study was to evaluate the prevalence of dental implants positioning errors and their associations with adjacent structures and anatomical variations by means of cone-beam computed tomography (CBCT). MATERIALS AND METHODS: CBCT images of 207 patients (584 dental implants) were evaluated by 2 oral radiologists. The distance between the implant and the adjacent teeth/implants was measured and classified as adequate (≥1.5 mm and ≥3 mm, respectively) or inadequate. The presence of thread exposure, cortical perforation, implant dehiscence, implant penetration into adjacent structures, and anatomical variations was also recorded. The incisor canal diameter and the depth of the concavity of the submandibular fossa were measured in order to evaluate their correlations with the frequency of implant penetration in these structures. Descriptive analyses, the Fisher exact test, and Spearman correlation analysis were performed (α=0.05). RESULTS: The overall prevalence of positioning errors was 82.9%. The most common error was the inadequate distance between the implant and the adjacent teeth/implants. The presence of anatomical variations did not significantly influence the overall prevalence of errors (P>0.05). There was a positive correlation between the diameter of the incisor canal and the frequency of implant penetration in this structure (r=0.232, P<0.05). CONCLUSION: There was a high prevalence of dental implant positioning errors, and positioning errors were not associated with the presence of anatomical variations. Professionals should be aware of the space available for implant placement during the preoperative planning stage.
format Online
Article
Text
id pubmed-7758259
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Korean Academy of Oral and Maxillofacial Radiology
record_format MEDLINE/PubMed
spelling pubmed-77582592021-01-05 Positioning errors of dental implants and their associations with adjacent structures and anatomical variations: A CBCT-based study Ribas, Beatriz Ribeiro Nascimento, Eduarda Helena Leandro Freitas, Deborah Queiroz Pontual, Andréa dos Anjos Pontual, Maria Luiza dos Anjos Perez, Danyel Elias Cruz Ramos-Perez, Flávia Maria Moraes Imaging Sci Dent Original Article PURPOSE: The objective of the present study was to evaluate the prevalence of dental implants positioning errors and their associations with adjacent structures and anatomical variations by means of cone-beam computed tomography (CBCT). MATERIALS AND METHODS: CBCT images of 207 patients (584 dental implants) were evaluated by 2 oral radiologists. The distance between the implant and the adjacent teeth/implants was measured and classified as adequate (≥1.5 mm and ≥3 mm, respectively) or inadequate. The presence of thread exposure, cortical perforation, implant dehiscence, implant penetration into adjacent structures, and anatomical variations was also recorded. The incisor canal diameter and the depth of the concavity of the submandibular fossa were measured in order to evaluate their correlations with the frequency of implant penetration in these structures. Descriptive analyses, the Fisher exact test, and Spearman correlation analysis were performed (α=0.05). RESULTS: The overall prevalence of positioning errors was 82.9%. The most common error was the inadequate distance between the implant and the adjacent teeth/implants. The presence of anatomical variations did not significantly influence the overall prevalence of errors (P>0.05). There was a positive correlation between the diameter of the incisor canal and the frequency of implant penetration in this structure (r=0.232, P<0.05). CONCLUSION: There was a high prevalence of dental implant positioning errors, and positioning errors were not associated with the presence of anatomical variations. Professionals should be aware of the space available for implant placement during the preoperative planning stage. Korean Academy of Oral and Maxillofacial Radiology 2020-12 2020-12-15 /pmc/articles/PMC7758259/ /pubmed/33409136 http://dx.doi.org/10.5624/isd.2020.50.4.281 Text en Copyright © 2020 by Korean Academy of Oral and Maxillofacial Radiology http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Ribas, Beatriz Ribeiro
Nascimento, Eduarda Helena Leandro
Freitas, Deborah Queiroz
Pontual, Andréa dos Anjos
Pontual, Maria Luiza dos Anjos
Perez, Danyel Elias Cruz
Ramos-Perez, Flávia Maria Moraes
Positioning errors of dental implants and their associations with adjacent structures and anatomical variations: A CBCT-based study
title Positioning errors of dental implants and their associations with adjacent structures and anatomical variations: A CBCT-based study
title_full Positioning errors of dental implants and their associations with adjacent structures and anatomical variations: A CBCT-based study
title_fullStr Positioning errors of dental implants and their associations with adjacent structures and anatomical variations: A CBCT-based study
title_full_unstemmed Positioning errors of dental implants and their associations with adjacent structures and anatomical variations: A CBCT-based study
title_short Positioning errors of dental implants and their associations with adjacent structures and anatomical variations: A CBCT-based study
title_sort positioning errors of dental implants and their associations with adjacent structures and anatomical variations: a cbct-based study
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7758259/
https://www.ncbi.nlm.nih.gov/pubmed/33409136
http://dx.doi.org/10.5624/isd.2020.50.4.281
work_keys_str_mv AT ribasbeatrizribeiro positioningerrorsofdentalimplantsandtheirassociationswithadjacentstructuresandanatomicalvariationsacbctbasedstudy
AT nascimentoeduardahelenaleandro positioningerrorsofdentalimplantsandtheirassociationswithadjacentstructuresandanatomicalvariationsacbctbasedstudy
AT freitasdeborahqueiroz positioningerrorsofdentalimplantsandtheirassociationswithadjacentstructuresandanatomicalvariationsacbctbasedstudy
AT pontualandreadosanjos positioningerrorsofdentalimplantsandtheirassociationswithadjacentstructuresandanatomicalvariationsacbctbasedstudy
AT pontualmarialuizadosanjos positioningerrorsofdentalimplantsandtheirassociationswithadjacentstructuresandanatomicalvariationsacbctbasedstudy
AT perezdanyeleliascruz positioningerrorsofdentalimplantsandtheirassociationswithadjacentstructuresandanatomicalvariationsacbctbasedstudy
AT ramosperezflaviamariamoraes positioningerrorsofdentalimplantsandtheirassociationswithadjacentstructuresandanatomicalvariationsacbctbasedstudy