Radiographic technique and brackets affect measurements of proximal enamel thickness on mandibular incisors

Amy Giok Phing Ang, Pauline Antoinette Josephine Steegmans, Wouter Kerdijk, Christos Livas, Yijin Ren

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

OBJECTIVE: To investigate the influence of radiographic film and tube positioning, the presence and the size of brackets on in vitro measurements of proximal enamel thickness of mandibular incisors on periapical radiographs aimed to aid planning of interproximal enamel reduction procedures in orthodontics.

MATERIALS AND METHODS: Eighty human mandibular incisors were assigned to sets of four and located in a customized base. Periapical radiographs were taken with the film positioned at three different angles (0°, 2°, and 5°) in relation to the frontal plane and the tube head positioned at five angles (0°, -2°, -5°, +2°, and +5°) in relation to the sagittal plane. The proximal enamel width was calculated by means of computerized image analysis and compared with measurements obtained at 0°. Statistical analysis was carried out to compare the enamel measurements on radiographs made with all angular combinations with and without the presence of brackets of different dimensions.

RESULTS: A significant difference (P < 0.05) was found between the measurements of proximal enamel width obtained at the different angles in relation to the frontal and sagittal planes for all sets with or without brackets. The presence of brackets significantly affected the measured width only for the enamel side further away from the radiation source at the sagittal plane (P < 0.05).

CONCLUSION: Angular changes in taking periapical radiographs of mandibular incisors and the presence of brackets significantly affect interproximal enamel measurements made with image analysis software.

Original languageEnglish
Pages (from-to)25-30
JournalEuropean journal of orthodontics
Volume39
Issue number1
DOIs
Publication statusPublished - Feb 2017
Externally publishedYes

Keywords

  • dentistry

Cite this

Ang, Amy Giok Phing ; Steegmans, Pauline Antoinette Josephine ; Kerdijk, Wouter ; Livas, Christos ; Ren, Yijin. / Radiographic technique and brackets affect measurements of proximal enamel thickness on mandibular incisors. In: European journal of orthodontics. 2017 ; Vol. 39, No. 1. pp. 25-30.
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title = "Radiographic technique and brackets affect measurements of proximal enamel thickness on mandibular incisors",
abstract = "OBJECTIVE: To investigate the influence of radiographic film and tube positioning, the presence and the size of brackets on in vitro measurements of proximal enamel thickness of mandibular incisors on periapical radiographs aimed to aid planning of interproximal enamel reduction procedures in orthodontics.MATERIALS AND METHODS: Eighty human mandibular incisors were assigned to sets of four and located in a customized base. Periapical radiographs were taken with the film positioned at three different angles (0°, 2°, and 5°) in relation to the frontal plane and the tube head positioned at five angles (0°, -2°, -5°, +2°, and +5°) in relation to the sagittal plane. The proximal enamel width was calculated by means of computerized image analysis and compared with measurements obtained at 0°. Statistical analysis was carried out to compare the enamel measurements on radiographs made with all angular combinations with and without the presence of brackets of different dimensions.RESULTS: A significant difference (P < 0.05) was found between the measurements of proximal enamel width obtained at the different angles in relation to the frontal and sagittal planes for all sets with or without brackets. The presence of brackets significantly affected the measured width only for the enamel side further away from the radiation source at the sagittal plane (P < 0.05).CONCLUSION: Angular changes in taking periapical radiographs of mandibular incisors and the presence of brackets significantly affect interproximal enamel measurements made with image analysis software.",
keywords = "dentistry, tandheelkunde",
author = "Ang, {Amy Giok Phing} and Steegmans, {Pauline Antoinette Josephine} and Wouter Kerdijk and Christos Livas and Yijin Ren",
note = "{\circledC} The Author 2016. Published by Oxford University Press on behalf of the European Orthodontic Society. All rights reserved. For permissions, please email: journals.permissions@oup.com.",
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Radiographic technique and brackets affect measurements of proximal enamel thickness on mandibular incisors. / Ang, Amy Giok Phing; Steegmans, Pauline Antoinette Josephine; Kerdijk, Wouter; Livas, Christos; Ren, Yijin.

In: European journal of orthodontics, Vol. 39, No. 1, 02.2017, p. 25-30.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Radiographic technique and brackets affect measurements of proximal enamel thickness on mandibular incisors

AU - Ang, Amy Giok Phing

AU - Steegmans, Pauline Antoinette Josephine

AU - Kerdijk, Wouter

AU - Livas, Christos

AU - Ren, Yijin

N1 - © The Author 2016. Published by Oxford University Press on behalf of the European Orthodontic Society. All rights reserved. For permissions, please email: journals.permissions@oup.com.

PY - 2017/2

Y1 - 2017/2

N2 - OBJECTIVE: To investigate the influence of radiographic film and tube positioning, the presence and the size of brackets on in vitro measurements of proximal enamel thickness of mandibular incisors on periapical radiographs aimed to aid planning of interproximal enamel reduction procedures in orthodontics.MATERIALS AND METHODS: Eighty human mandibular incisors were assigned to sets of four and located in a customized base. Periapical radiographs were taken with the film positioned at three different angles (0°, 2°, and 5°) in relation to the frontal plane and the tube head positioned at five angles (0°, -2°, -5°, +2°, and +5°) in relation to the sagittal plane. The proximal enamel width was calculated by means of computerized image analysis and compared with measurements obtained at 0°. Statistical analysis was carried out to compare the enamel measurements on radiographs made with all angular combinations with and without the presence of brackets of different dimensions.RESULTS: A significant difference (P < 0.05) was found between the measurements of proximal enamel width obtained at the different angles in relation to the frontal and sagittal planes for all sets with or without brackets. The presence of brackets significantly affected the measured width only for the enamel side further away from the radiation source at the sagittal plane (P < 0.05).CONCLUSION: Angular changes in taking periapical radiographs of mandibular incisors and the presence of brackets significantly affect interproximal enamel measurements made with image analysis software.

AB - OBJECTIVE: To investigate the influence of radiographic film and tube positioning, the presence and the size of brackets on in vitro measurements of proximal enamel thickness of mandibular incisors on periapical radiographs aimed to aid planning of interproximal enamel reduction procedures in orthodontics.MATERIALS AND METHODS: Eighty human mandibular incisors were assigned to sets of four and located in a customized base. Periapical radiographs were taken with the film positioned at three different angles (0°, 2°, and 5°) in relation to the frontal plane and the tube head positioned at five angles (0°, -2°, -5°, +2°, and +5°) in relation to the sagittal plane. The proximal enamel width was calculated by means of computerized image analysis and compared with measurements obtained at 0°. Statistical analysis was carried out to compare the enamel measurements on radiographs made with all angular combinations with and without the presence of brackets of different dimensions.RESULTS: A significant difference (P < 0.05) was found between the measurements of proximal enamel width obtained at the different angles in relation to the frontal and sagittal planes for all sets with or without brackets. The presence of brackets significantly affected the measured width only for the enamel side further away from the radiation source at the sagittal plane (P < 0.05).CONCLUSION: Angular changes in taking periapical radiographs of mandibular incisors and the presence of brackets significantly affect interproximal enamel measurements made with image analysis software.

KW - dentistry

KW - tandheelkunde

UR - http://www.mendeley.com/research/radiographic-technique-brackets-affect-measurements-proximal-enamel-thickness-mandibular-incisors

U2 - 10.1093/ejo/cjw004

DO - 10.1093/ejo/cjw004

M3 - Article

VL - 39

SP - 25

EP - 30

JO - European journal of orthodontics

JF - European journal of orthodontics

SN - 0141-5387

IS - 1

ER -