Cargando…
Analysis of dimensions and shapes of maxillary and mandibular dental arch in Korean young adults
PURPOSE: The aim of this study was to investigate dental arch dimensions and to classify arch shape in Korean young adults. MATERIALS AND METHODS: The sample included 50 Koreans with age ranging from 24 to 32 years. Maxillary and mandibular casts were fabricated using irreversible hydrocolloid and t...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Korean Academy of Prosthodontics
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5673607/ https://www.ncbi.nlm.nih.gov/pubmed/29142638 http://dx.doi.org/10.4047/jap.2017.9.5.321 |
_version_ | 1783276604531671040 |
---|---|
author | Park, Su-Jung Leesungbok, Richard Song, Jae-Won Chang, Se Hun Lee, Suk-Won Ahn, Su-Jin |
author_facet | Park, Su-Jung Leesungbok, Richard Song, Jae-Won Chang, Se Hun Lee, Suk-Won Ahn, Su-Jin |
author_sort | Park, Su-Jung |
collection | PubMed |
description | PURPOSE: The aim of this study was to investigate dental arch dimensions and to classify arch shape in Korean young adults. MATERIALS AND METHODS: The sample included 50 Koreans with age ranging from 24 to 32 years. Maxillary and mandibular casts were fabricated using irreversible hydrocolloid and type III dental stones. Incisor-canine distance, incisor-1(st) molar distance, incisor-2(nd) molar distance, intercanine distance, inter-1(st) molar distance, and inter-2(nd) molar distance in both the maxillary and mandibular arch were measured using a three-dimensional measuring device. The dental arch was classified into three groups using five ratios from the measured values by the K-means clustering method. The data were analyzed with one-way analysis of variance. RESULTS: Arch lengths (IM2D, incisal-2(nd) molar distance) were 44.13 mm in the maxilla and 40.40 mm in the mandible. Arch widths (M2W, inter 2(nd) molar width) were 64.12 mm in the maxilla and 56.37 mm in the mandible. Distribution of the dental arch form was mostly ovoid shape (maxilla 52% and mandible 56%), followed by the V-shape and the U-shape. The arch width for the U-shape was broader than for the other forms. CONCLUSION: This study establishes new reference data for dental arch dimensions for young Korean adults. The most common arch form is the ovoid type in the maxilla and mandible of Koreans. Clinicians should be aware of these references and classify arch type before and during their dental treatment for effective and harmonized results in Koreans. |
format | Online Article Text |
id | pubmed-5673607 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | The Korean Academy of Prosthodontics |
record_format | MEDLINE/PubMed |
spelling | pubmed-56736072017-11-15 Analysis of dimensions and shapes of maxillary and mandibular dental arch in Korean young adults Park, Su-Jung Leesungbok, Richard Song, Jae-Won Chang, Se Hun Lee, Suk-Won Ahn, Su-Jin J Adv Prosthodont Original Article PURPOSE: The aim of this study was to investigate dental arch dimensions and to classify arch shape in Korean young adults. MATERIALS AND METHODS: The sample included 50 Koreans with age ranging from 24 to 32 years. Maxillary and mandibular casts were fabricated using irreversible hydrocolloid and type III dental stones. Incisor-canine distance, incisor-1(st) molar distance, incisor-2(nd) molar distance, intercanine distance, inter-1(st) molar distance, and inter-2(nd) molar distance in both the maxillary and mandibular arch were measured using a three-dimensional measuring device. The dental arch was classified into three groups using five ratios from the measured values by the K-means clustering method. The data were analyzed with one-way analysis of variance. RESULTS: Arch lengths (IM2D, incisal-2(nd) molar distance) were 44.13 mm in the maxilla and 40.40 mm in the mandible. Arch widths (M2W, inter 2(nd) molar width) were 64.12 mm in the maxilla and 56.37 mm in the mandible. Distribution of the dental arch form was mostly ovoid shape (maxilla 52% and mandible 56%), followed by the V-shape and the U-shape. The arch width for the U-shape was broader than for the other forms. CONCLUSION: This study establishes new reference data for dental arch dimensions for young Korean adults. The most common arch form is the ovoid type in the maxilla and mandible of Koreans. Clinicians should be aware of these references and classify arch type before and during their dental treatment for effective and harmonized results in Koreans. The Korean Academy of Prosthodontics 2017-10 2017-10-16 /pmc/articles/PMC5673607/ /pubmed/29142638 http://dx.doi.org/10.4047/jap.2017.9.5.321 Text en © 2017 The Korean Academy of Prosthodontics 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 Park, Su-Jung Leesungbok, Richard Song, Jae-Won Chang, Se Hun Lee, Suk-Won Ahn, Su-Jin Analysis of dimensions and shapes of maxillary and mandibular dental arch in Korean young adults |
title | Analysis of dimensions and shapes of maxillary and mandibular dental arch in Korean young adults |
title_full | Analysis of dimensions and shapes of maxillary and mandibular dental arch in Korean young adults |
title_fullStr | Analysis of dimensions and shapes of maxillary and mandibular dental arch in Korean young adults |
title_full_unstemmed | Analysis of dimensions and shapes of maxillary and mandibular dental arch in Korean young adults |
title_short | Analysis of dimensions and shapes of maxillary and mandibular dental arch in Korean young adults |
title_sort | analysis of dimensions and shapes of maxillary and mandibular dental arch in korean young adults |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5673607/ https://www.ncbi.nlm.nih.gov/pubmed/29142638 http://dx.doi.org/10.4047/jap.2017.9.5.321 |
work_keys_str_mv | AT parksujung analysisofdimensionsandshapesofmaxillaryandmandibulardentalarchinkoreanyoungadults AT leesungbokrichard analysisofdimensionsandshapesofmaxillaryandmandibulardentalarchinkoreanyoungadults AT songjaewon analysisofdimensionsandshapesofmaxillaryandmandibulardentalarchinkoreanyoungadults AT changsehun analysisofdimensionsandshapesofmaxillaryandmandibulardentalarchinkoreanyoungadults AT leesukwon analysisofdimensionsandshapesofmaxillaryandmandibulardentalarchinkoreanyoungadults AT ahnsujin analysisofdimensionsandshapesofmaxillaryandmandibulardentalarchinkoreanyoungadults |