open access

Vol 74, No 4 (2015)
ORIGINAL ARTICLES
Published online: 2015-11-27
Submitted: 2015-05-02
Accepted: 2015-06-05
Get Citation

The size of anterior teeth in patients with gaps in the upper dental arch

A. Sękowska, I. Dunin-Wilczyńska, R. Chałas
DOI: 10.5603/FM.2015.0113
·
Pubmed: 26620511
·
Folia Morphol 2015;74(4):493-496.

open access

Vol 74, No 4 (2015)
ORIGINAL ARTICLES
Published online: 2015-11-27
Submitted: 2015-05-02
Accepted: 2015-06-05

Abstract

Background: The aim of this study was to assess the size of upper incisors and canines in patients with gaps in the upper dental arch, especially medium gap between upper central incisors.

Materials and methods: Diagnostic orthodontic models of 30 adult patients with full permanent dentition with diastema in the upper arch were studied. Patients with severe malocclusion, missing teeth and periodontal disease were excluded. Width-to-length (W/L) ratio of the clinical crown of the central, lateral incisors and canines for both sides was measured. Together 180 teeth were tested. The results were compared with the values indicated by Sterrett et al.

Results: In all patients, the clinical crowns of central incisors were symmetrical. In most cases, a higher W/L ratio was found, which indicates that the clinical crowns of medial incisors were too broad in relation to the length. Lateral incisors: In most cases, the ratio was the same for the right and the left side; however, a few patients had asymmetry of lateral incisors. Most of the lateral incisors had higher W/L ratios, which means that the teeth were wider than they were long; some had reduced ratios and only in one case the ratio was proper. Canines were also asymmetrical, and none of the canine exhibited perfect proportions. The vast majority showed increased W/L ratio of the clinical crown. In several cases, the W/L ratio was decreased.

Conclusions: Patients with gaps between the teeth have abnormal W/L ratio of the clinical crowns of the upper front teeth. The values were increased in the majority of cases, which indicates that the front teeth were wider than they were long in patients with gaps. Moreover, despite the disturbed W/L proportions, central incisors remained symmetrical. In contrast, lateral incisors and canines more often exhibited asymmetries.

Abstract

Background: The aim of this study was to assess the size of upper incisors and canines in patients with gaps in the upper dental arch, especially medium gap between upper central incisors.

Materials and methods: Diagnostic orthodontic models of 30 adult patients with full permanent dentition with diastema in the upper arch were studied. Patients with severe malocclusion, missing teeth and periodontal disease were excluded. Width-to-length (W/L) ratio of the clinical crown of the central, lateral incisors and canines for both sides was measured. Together 180 teeth were tested. The results were compared with the values indicated by Sterrett et al.

Results: In all patients, the clinical crowns of central incisors were symmetrical. In most cases, a higher W/L ratio was found, which indicates that the clinical crowns of medial incisors were too broad in relation to the length. Lateral incisors: In most cases, the ratio was the same for the right and the left side; however, a few patients had asymmetry of lateral incisors. Most of the lateral incisors had higher W/L ratios, which means that the teeth were wider than they were long; some had reduced ratios and only in one case the ratio was proper. Canines were also asymmetrical, and none of the canine exhibited perfect proportions. The vast majority showed increased W/L ratio of the clinical crown. In several cases, the W/L ratio was decreased.

Conclusions: Patients with gaps between the teeth have abnormal W/L ratio of the clinical crowns of the upper front teeth. The values were increased in the majority of cases, which indicates that the front teeth were wider than they were long in patients with gaps. Moreover, despite the disturbed W/L proportions, central incisors remained symmetrical. In contrast, lateral incisors and canines more often exhibited asymmetries.

Get Citation

Keywords

teeth size, width/length ratio, diastema

Supplementary Files (3)
Niezatytułowany
Download
13KB
Niezatytułowany
Download
12KB
Niezatytułowany
Download
14KB
About this article
Title

The size of anterior teeth in patients with gaps in the upper dental arch

Journal

Folia Morphologica

Issue

Vol 74, No 4 (2015)

Pages

493-496

Published online

2015-11-27

DOI

10.5603/FM.2015.0113

Pubmed

26620511

Bibliographic record

Folia Morphol 2015;74(4):493-496.

Keywords

teeth size
width/length ratio
diastema

Authors

A. Sękowska
I. Dunin-Wilczyńska
R. Chałas

Important: This website uses cookies. More >>

The cookies allow us to identify your computer and find out details about your last visit. They remembering whether you've visited the site before, so that you remain logged in - or to help us work out how many new website visitors we get each month. Most internet browsers accept cookies automatically, but you can change the settings of your browser to erase cookies or prevent automatic acceptance if you prefer.

By  "Via Medica sp. z o.o." sp.k., Świętokrzyska 73, 80–180 Gdańsk, Poland

tel.:+48 58 320 94 94, faks:+48 58 320 94 60, e-mail:  viamedica@viamedica.pl