Measuring cortical thickness on panoramic radiographs: A validation study of the Mental Index

Vinicius Dutra, Cristiano Susin, Nilza Pereira da Costa, Elaine Bauer Veeck, Alexandre Bahlis, Artur da Rocha Correa Fernandes

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Objectives: To validate the Mental Index assessment obtained from panoramic radiographs. Study design: Ten dried mandibles were selected, and standardized panoramic radiographs were obtained. The specimens were then perpendicularly sectioned at the mental foramen region, and the inferior mandibular cortical thickness was recorded using a digital caliper. Measurements of panoramic radiographs were compared with the dried mandibles. Four observers carried out twice the measurements for the panoramic radiographs. Two observers performed twice the measurements of the dried mandibles. Reliability was assessed by duplicate measurements. Results: Agreement between the actual mandible measurements and the radiographic assessment was moderate for the noncorrected measurements. Agreement between anatomic and radiographic measurements improved remarkably after standard correction for magnification. Conclusions: Bone status reports based on measuring cortical thickness of the lower border of the mandible at the mental foramen based on panoramic radiographs, i.e., Mental Index, are accurate. Compensation for magnification, however, is necessary.

Original languageEnglish (US)
Pages (from-to)686-691
Number of pages6
JournalOral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology
Volume104
Issue number5
DOIs
StatePublished - Nov 1 2007

Fingerprint

Validation Studies
Mandible
Bone and Bones

ASJC Scopus subject areas

  • Surgery
  • Oral Surgery
  • Otorhinolaryngology
  • Dentistry(all)

Cite this

Measuring cortical thickness on panoramic radiographs : A validation study of the Mental Index. / Dutra, Vinicius; Susin, Cristiano; da Costa, Nilza Pereira; Veeck, Elaine Bauer; Bahlis, Alexandre; Fernandes, Artur da Rocha Correa.

In: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology, Vol. 104, No. 5, 01.11.2007, p. 686-691.

Research output: Contribution to journalArticle

Dutra, Vinicius ; Susin, Cristiano ; da Costa, Nilza Pereira ; Veeck, Elaine Bauer ; Bahlis, Alexandre ; Fernandes, Artur da Rocha Correa. / Measuring cortical thickness on panoramic radiographs : A validation study of the Mental Index. In: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology. 2007 ; Vol. 104, No. 5. pp. 686-691.
@article{58264bb42122458dbafa2ebf493c6f95,
title = "Measuring cortical thickness on panoramic radiographs: A validation study of the Mental Index",
abstract = "Objectives: To validate the Mental Index assessment obtained from panoramic radiographs. Study design: Ten dried mandibles were selected, and standardized panoramic radiographs were obtained. The specimens were then perpendicularly sectioned at the mental foramen region, and the inferior mandibular cortical thickness was recorded using a digital caliper. Measurements of panoramic radiographs were compared with the dried mandibles. Four observers carried out twice the measurements for the panoramic radiographs. Two observers performed twice the measurements of the dried mandibles. Reliability was assessed by duplicate measurements. Results: Agreement between the actual mandible measurements and the radiographic assessment was moderate for the noncorrected measurements. Agreement between anatomic and radiographic measurements improved remarkably after standard correction for magnification. Conclusions: Bone status reports based on measuring cortical thickness of the lower border of the mandible at the mental foramen based on panoramic radiographs, i.e., Mental Index, are accurate. Compensation for magnification, however, is necessary.",
author = "Vinicius Dutra and Cristiano Susin and {da Costa}, {Nilza Pereira} and Veeck, {Elaine Bauer} and Alexandre Bahlis and Fernandes, {Artur da Rocha Correa}",
year = "2007",
month = "11",
day = "1",
doi = "10.1016/j.tripleo.2007.03.034",
language = "English (US)",
volume = "104",
pages = "686--691",
journal = "Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology",
issn = "2212-4403",
publisher = "Elsevier USA",
number = "5",

}

TY - JOUR

T1 - Measuring cortical thickness on panoramic radiographs

T2 - A validation study of the Mental Index

AU - Dutra, Vinicius

AU - Susin, Cristiano

AU - da Costa, Nilza Pereira

AU - Veeck, Elaine Bauer

AU - Bahlis, Alexandre

AU - Fernandes, Artur da Rocha Correa

PY - 2007/11/1

Y1 - 2007/11/1

N2 - Objectives: To validate the Mental Index assessment obtained from panoramic radiographs. Study design: Ten dried mandibles were selected, and standardized panoramic radiographs were obtained. The specimens were then perpendicularly sectioned at the mental foramen region, and the inferior mandibular cortical thickness was recorded using a digital caliper. Measurements of panoramic radiographs were compared with the dried mandibles. Four observers carried out twice the measurements for the panoramic radiographs. Two observers performed twice the measurements of the dried mandibles. Reliability was assessed by duplicate measurements. Results: Agreement between the actual mandible measurements and the radiographic assessment was moderate for the noncorrected measurements. Agreement between anatomic and radiographic measurements improved remarkably after standard correction for magnification. Conclusions: Bone status reports based on measuring cortical thickness of the lower border of the mandible at the mental foramen based on panoramic radiographs, i.e., Mental Index, are accurate. Compensation for magnification, however, is necessary.

AB - Objectives: To validate the Mental Index assessment obtained from panoramic radiographs. Study design: Ten dried mandibles were selected, and standardized panoramic radiographs were obtained. The specimens were then perpendicularly sectioned at the mental foramen region, and the inferior mandibular cortical thickness was recorded using a digital caliper. Measurements of panoramic radiographs were compared with the dried mandibles. Four observers carried out twice the measurements for the panoramic radiographs. Two observers performed twice the measurements of the dried mandibles. Reliability was assessed by duplicate measurements. Results: Agreement between the actual mandible measurements and the radiographic assessment was moderate for the noncorrected measurements. Agreement between anatomic and radiographic measurements improved remarkably after standard correction for magnification. Conclusions: Bone status reports based on measuring cortical thickness of the lower border of the mandible at the mental foramen based on panoramic radiographs, i.e., Mental Index, are accurate. Compensation for magnification, however, is necessary.

UR - http://www.scopus.com/inward/record.url?scp=35349010998&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=35349010998&partnerID=8YFLogxK

U2 - 10.1016/j.tripleo.2007.03.034

DO - 10.1016/j.tripleo.2007.03.034

M3 - Article

C2 - 17656120

AN - SCOPUS:35349010998

VL - 104

SP - 686

EP - 691

JO - Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology

JF - Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology

SN - 2212-4403

IS - 5

ER -