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The European Journal of Orthodontics 1993 15(3):223-227; doi:10.1093/ejo/15.3.223
© 1993 by European Orthodontic Society
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Radiological variations in mandibular condyles of Finnish students, one group orthodontically treated and the other not

Jaakko Sakari Peltola

Department of Dental Radiology, University of Helsinki, and Finnish Student Health Service Helsinki, Finland

Address for correspondence: Jaakko Peltola, Uudentuvantie 29 A, 00680 Helsinki, Finland

Panoramatomograms of 968 students (355 males and 613 females) aged between 19 and 25 years were evaluated with special emphasis on the mandibular condyles. Two-hundred-and-thirty-five students (24.3 per cent) had been treated orthodontically. Radiographic variations in the condyles were significantly more common in the orthodontically treated group as a whole and in males (n=71, P< 0.001), but not in females (n=164). No age correlation in the frequency of condylar variations was found in either group. In terms of individual severe variation, flattening of the articular surface (P<0.001) and subcortical sclerosis (P<0.01) were more common in the orthodontically treated students. In the untreated subjects (284 males and 449 females), females had more variations (9.3 per cent) in their condyles than males (3.7 per cent P<0.001). In the orthodontically treated students the percentages with condylar variations were 21.1 per cent in males and 16.5 per cent in females (N.S.).


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J.S. Peltola, M. Kononen, and M. Nystrom
A Follow-up Study of Radiographic Findings in the Mandibular Condyles of Orthodontically Treated Patients and Associations with TMD
Journal of Dental Research, September 1, 1995; 74(9): 1571 - 1576.
[Abstract] [PDF]


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