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An Investigation of the Morphology of the Petrotympanic Fissure Using Cone-Beam Computed Tomography J Oral Maxillofac Res 2018;9(1):e4 doi:10.5037/jomr.2018.9104 Abstract | HTML | PDF | XML |
An Investigation of the Morphology of the Petrotympanic Fissure Using Cone-Beam Computed Tomography
1Department of Oral Radiology, Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands.
2Department of Oral Diagnosis and Radiology, School of Dentistry, NKUA, Athens, Greece.
3Department of Imaging and Pathology, OMFS IMPATH Research Group, Faculty of Medicine, Katholieke Universiteit Leuven, Leuven, Belgium.
4Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium.
Corresponding Author:
Department of Oral Radiology
Academic Centre for Dentistry Amsterdam (ACTA)
Gustav Mahler Laan 3004, 1081 LA, Amsterdam
The Netherlands
Phone: +30 6944 541529
E-mail: s.damaskos@acta.nl; sdamask@dent.uoa.gr
ABSTRACT
Objectives: The purpose of the present study was: a) to examine the visibility and morphology of the petrotympanic fissure on cone-beam computed tomography images, and b) to investigate whether the petrotympanic fissure morphology is significantly affected by gender and age, or not.
Material and Methods: Using Newtom VGi (QR Verona, Italy), 106 cone-beam computed tomography examinations (212 temporomandibular joint areas) of both genders were retrospectively and randomly selected. Two observers examined the images and subsequently classified by consensus the petrotympanic fissure morphology into the following three types: type 1 - widely open; type 2 - narrow middle; type 3 - very narrow/closed.
Results: The petrotympanic fissure morphology was assessed as type 1, type 2, and type 3 in 85 (40.1%), 72 (34.0%), and 55 (25.9%) cases, respectively. No significant difference was found between left and right petrotympanic fissure morphology (Kappa = 0.37; P < 0.001). Furthermore, no significant difference was found between genders, specifically P = 0.264 and P = 0.211 for the right and left petrotympanic fissure morphology, respectively. However, the ordinal logistic regression analysis showed that males tend to have narrower petrotympanic fissures, in particular OR = 1.58 for right and OR = 1.5 for left petrotympanic fissure.
Conclusions: The current study lends support to the conclusion that an enhanced multi-planar cone-beam computed tomography yields a clear depiction of the petrotympanic fissure’s morphological characteristics. We have found that the morphology is neither gender nor age-related.
J Oral Maxillofac Res 2018;9(1):e4
doi: 10.5037/jomr.2018.9104
Accepted for publication: 27 March 2018
Keywords: arthroscopy; cone-beam computed tomography; temporal bone; temporomandibular joint.
To cite this article: An Investigation of the Morphology of the Petrotympanic Fissure Using Cone-Beam Computed Tomography J Oral Maxillofac Res 2018;9(1):e4 URL: http://www.ejomr.org/JOMR/archives/2018/1/e4/v9n1e4ht.htm |
Received: 15 February 2018 | Accepted: 27 March 2018 | Published: 31 March 2018
Copyright: © The Author(s). Published by JOMR under CC BY-NC-ND 3.0 licence, 2018.