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Condylar shape analysis using panoramic radiography units and conventional tomography.

Farah Mawani·Ernest W N Lam·Giseon Heo·Ian McKee·Donald W Raboud·Paul W Major
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Abstract

OBJECTIVE: The objective of this study was to compare condyle shape between lateral temporomandibular joint (TMJ) images from axially corrected tomography and 3 panoramic radiography units with TMJ-specific programs. STUDY DESIGN: The TMJ from a single dry human skull was imaged with multidirectional tomography and the following 3 panoramic radiography units: Instrumentarium OP 100, Planmeca PM 2002 CC Proline, and Soredex Orthophos DS. A curve-fitting procedure (spline curves) was used to mathematically describe condyle outlines. One sample t tests were used to compare panoramic images against the tomograms (gold standard). RESULTS: A significant difference (P < .05) in condyle shape was found between TMJ tomography images and each of the 3 panoramic images. Images from the PM 2002 CC Proline demonstrated the smallest shape difference (13.4%), followed by the OP 100 (17.5%) and the Orthophos DS (24.8%). CONCLUSION: If panoramic radiography is to be used for the initial radiographic examination of the TMJ, practitioners should be aware of the potential for shape distortion of the condyle.

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Analysis of VarianceArtifactsHumansMandibular CondyleMathematicsRadiographic Image EnhancementRadiography, PanoramicStatistics, NonparametricTemporomandibular JointTomography, Spiral ComputedComparative StudyJournal ArticleResearch Support, Non-U.S. Gov't

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Farah Mawani, Ernest W N Lam, Giseon Heo, Ian McKee, Donald W Raboud, Paul W Major. 2005. Condylar shape analysis using panoramic radiography units and conventional tomography.. https://doi.org/10.1016/j.tripleo.2004.07.011

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