Cargando…

Location and dimensions of access cavity in permanent incisors, canines, and premolars

BACKGROUND: Ideal access cavity assures unobstructed straight-line access to the apical third of the root canal and preserves tooth structure. AIM: The aim of the study was to determine the location and dimensions of access cavity with straight-line access in incisors, canines, and premolars and to...

Descripción completa

Detalles Bibliográficos
Autores principales: Krapež, Jana, Fidler, Aleš
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3778620/
https://www.ncbi.nlm.nih.gov/pubmed/24082567
http://dx.doi.org/10.4103/0972-0707.117491
_version_ 1782285138708660224
author Krapež, Jana
Fidler, Aleš
author_facet Krapež, Jana
Fidler, Aleš
author_sort Krapež, Jana
collection PubMed
description BACKGROUND: Ideal access cavity assures unobstructed straight-line access to the apical third of the root canal and preserves tooth structure. AIM: The aim of the study was to determine the location and dimensions of access cavity with straight-line access in incisors, canines, and premolars and to evaluate the largest diameter of their root canals in the mesiodistal and vestibulooral direction. MATERIALS AND METHODS: Twenty extracted teeth of each group were randomly selected and digitally radiographed from the mesiodistal and vestibulooral direction. Position of the straight-line access midline in relation to anatomical landmarks (incisal edges, fissures, and cusps) was recorded. The largest diameters in mesiodistal and vestibulooral direction were measured. Relative frequencies of access position and mean and standard deviation of both diameters were calculated. RESULTS: For the anterior teeth, the predominant location of straight-line access was from incisal edge, except for maxillary central incisors, where location was equally distributed between incisal edge and oral surface. In mandibular premolars, the straight-line access was positioned vestibular from central fissure. In mesiodistal direction, the largest diameter was found for maxillary central incisors and canines (1.54 mm), while the smallest diameter was found for mandibular incisors (0.64 mm). In vestibulooral direction, the largest diameter was found for maxillary first premolar (5.28 mm), while the smallest diameter was found for maxillary lateral incisor (1.39 mm). CONCLUSIONS: Knowledge of location and size of access cavity facilitates achieving balance between straight-line access to the apical third of the root canal and preservation of tooth structure.
format Online
Article
Text
id pubmed-3778620
institution National Center for Biotechnology Information
language English
publishDate 2013
publisher Medknow Publications & Media Pvt Ltd
record_format MEDLINE/PubMed
spelling pubmed-37786202013-09-30 Location and dimensions of access cavity in permanent incisors, canines, and premolars Krapež, Jana Fidler, Aleš J Conserv Dent Original Article BACKGROUND: Ideal access cavity assures unobstructed straight-line access to the apical third of the root canal and preserves tooth structure. AIM: The aim of the study was to determine the location and dimensions of access cavity with straight-line access in incisors, canines, and premolars and to evaluate the largest diameter of their root canals in the mesiodistal and vestibulooral direction. MATERIALS AND METHODS: Twenty extracted teeth of each group were randomly selected and digitally radiographed from the mesiodistal and vestibulooral direction. Position of the straight-line access midline in relation to anatomical landmarks (incisal edges, fissures, and cusps) was recorded. The largest diameters in mesiodistal and vestibulooral direction were measured. Relative frequencies of access position and mean and standard deviation of both diameters were calculated. RESULTS: For the anterior teeth, the predominant location of straight-line access was from incisal edge, except for maxillary central incisors, where location was equally distributed between incisal edge and oral surface. In mandibular premolars, the straight-line access was positioned vestibular from central fissure. In mesiodistal direction, the largest diameter was found for maxillary central incisors and canines (1.54 mm), while the smallest diameter was found for mandibular incisors (0.64 mm). In vestibulooral direction, the largest diameter was found for maxillary first premolar (5.28 mm), while the smallest diameter was found for maxillary lateral incisor (1.39 mm). CONCLUSIONS: Knowledge of location and size of access cavity facilitates achieving balance between straight-line access to the apical third of the root canal and preservation of tooth structure. Medknow Publications & Media Pvt Ltd 2013 /pmc/articles/PMC3778620/ /pubmed/24082567 http://dx.doi.org/10.4103/0972-0707.117491 Text en Copyright: © Journal of Conservative Dentistry http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Krapež, Jana
Fidler, Aleš
Location and dimensions of access cavity in permanent incisors, canines, and premolars
title Location and dimensions of access cavity in permanent incisors, canines, and premolars
title_full Location and dimensions of access cavity in permanent incisors, canines, and premolars
title_fullStr Location and dimensions of access cavity in permanent incisors, canines, and premolars
title_full_unstemmed Location and dimensions of access cavity in permanent incisors, canines, and premolars
title_short Location and dimensions of access cavity in permanent incisors, canines, and premolars
title_sort location and dimensions of access cavity in permanent incisors, canines, and premolars
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3778620/
https://www.ncbi.nlm.nih.gov/pubmed/24082567
http://dx.doi.org/10.4103/0972-0707.117491
work_keys_str_mv AT krapezjana locationanddimensionsofaccesscavityinpermanentincisorscaninesandpremolars
AT fidlerales locationanddimensionsofaccesscavityinpermanentincisorscaninesandpremolars