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Comparative evaluation of mandibular canal visibility on cross-sectional cone-beam CT images: a retrospective study

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Comparative evaluation of mandibular canal visibility on cross-sectional cone-beam CT images: a retrospective study

Auteurs : Mahogany S. Miles ; Edwin T. Parks ; George J. Eckert ; Steven B. Blanchard

Source :

Dentomaxillofacial Radiology [ 0250-832X ] ; 2015.

RBID : PMC:5083955

Abstract

Objectives:

The purpose of this study was to determine the visibility of the mandibular canal (MC) in CBCT images and if the visibility of the MC is affected by gender, location and/or age.

Methods:

CBCT images were evaluated for the visibility of the MC by a board-certified oral and maxillofacial radiologist, a board-certified periodontist and a periodontics resident. Representative slices were examined for the first premolar (PM₁), second premolar (PM₂), first molar (M₁) and second molar (M₂) sites by all examiners. The visibility of the MC was registered as either present or absent.

Results:

360 total CBCT cross-sectional images were examined, with the MC identified in 204 sites (56%). Age had a significant effect on MC visibility, but it differed by location: for PM₁, age 47–56 had lower visibility than age 65+ (p = 0.0377). Gender also had a significant effect on canal visibility, where females had lower visibility than males overall (p = 0.0178) and had the most pronounced difference for PM₁ (p = 0.0054). Location had a significant effect on visibility, but it differed by age and by gender: for age 65+, M₂ had lower visibility than PM₁ (p = 0.0411) and PM₂ (p = 0.0180), while for females, PM₁ had lower visibility than M₁ (p = 0.0123) and M₂ (p = 0.0419).

Conclusions:

The MC was visualized only in just over half of the CBCT images. Age, gender and location had significant effects on the visibility.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5083955

DOI: 10.1259/dmfr.20150296
PubMed: 26545046
PubMed Central: 5083955

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PMC:5083955

Le document en format XML

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<author><name sortKey="Parks, Edwin T" sort="Parks, Edwin T" uniqKey="Parks E" first="Edwin T" last="Parks">Edwin T. Parks</name>
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<author><name sortKey="Eckert, George J" sort="Eckert, George J" uniqKey="Eckert G" first="George J" last="Eckert">George J. Eckert</name>
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<front><div type="abstract" xml:lang="en"><sec><title>Objectives:</title>
<p>The purpose of this study was to determine the visibility of the mandibular canal (MC) in CBCT images and if the visibility of the MC is affected by gender, location and/or age.</p>
</sec>
<sec><title>Methods:</title>
<p>CBCT images were evaluated for the visibility of the MC by a board-certified oral and maxillofacial radiologist, a board-certified periodontist and a periodontics resident. Representative slices were examined for the first premolar (PM<sub>1</sub>
), second premolar (PM<sub>2</sub>
), first molar (M<sub>1</sub>
) and second molar (M<sub>2</sub>
) sites by all examiners. The visibility of the MC was registered as either present or absent.</p>
</sec>
<sec><title>Results:</title>
<p>360 total CBCT cross-sectional images were examined, with the MC identified in 204 sites (56%). Age had a significant effect on MC visibility, but it differed by location: for PM<sub>1</sub>
, age 47–56 had lower visibility than age 65+ (<italic>p</italic>
 = 0.0377). Gender also had a significant effect on canal visibility, where females had lower visibility than males overall (<italic>p</italic>
 = 0.0178) and had the most pronounced difference for PM<sub>1</sub>
 (<italic>p</italic>
 = 0.0054). Location had a significant effect on visibility, but it differed by age and by gender: for age 65+, M<sub>2</sub>
 had lower visibility than PM<sub>1</sub>
 (<italic>p</italic>
 = 0.0411) and PM<sub>2</sub>
 (<italic>p</italic>
 = 0.0180), while for females, PM<sub>1</sub>
 had lower visibility than M<sub>1</sub>
 (<italic>p</italic>
 = 0.0123) and M<sub>2</sub>
 (<italic>p</italic>
 = 0.0419).</p>
</sec>
<sec><title>Conclusions:</title>
<p>The MC was visualized only in just over half of the CBCT images. Age, gender and location had significant effects on the visibility.</p>
</sec>
</div>
</front>
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Comparative evaluation of mandibular canal visibility on cross-sectional cone-beam CT images: a retrospective study

Comparative evaluation of mandibular canal visibility on cross-sectional cone-beam CT images: a retrospective study

Source :

Abstract

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Le document en format XML

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