Korean J Oral Maxillofac Radiol.  2010 Dec;40(4):159-163.

A study on the prevalence of the idiopathic osteosclerosis in Korean malocclusion patients

Affiliations
  • 1Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University, Korea. korth@gwnu.ac.kr
  • 2Department of Oral and Maxillofacial Radiology, College of Dentistry, Gangneung-Wonju National University, Korea.

Abstract

PURPOSE
This retrospective study was performed to investigate the prevalence of the idiopathic osteosclerosis (IO) in Korean malocclusion patients according to age, sex, and the Angle's classification of malocclusion.
MATERIALS AND METHODS
This study consisted of 2,001 randomly selected patients from the Department of Orthodontics at the Gangneung-Wonju National University Dental Hospital, Korea. The prevalence of IO in Korean malocclusion patients was recorded using their panoramic radiographs, and the following parameters were surveyed; age, sex, and the Angle's classification of malocclusion. The chi-square test was analyzed to determine the statistical significance of differences in the prevalence of IO between age, sex, and the Angle's classification of malocclusion.
RESULTS
The prevalence of IO in the jaws was 6.7% in a total of 2,001 examined orthodontic patients. The majority of IO was found in the mandible (96.58%). The 30-39 age group showed the highest prevalence of IO (9.60%). There was a higher prevalence in females (6.89%) than in males (6.45%). The prevalence of IO in Angle Class I group (7.07%) was the most frequent, followed by Angle Class II group (6.72%), and Angle Class III group (6.40%). However, there was no statistical significance in sex and Angle's classification of malocclusion.
CONCLUSION
The prevalence of IO in malocclusion patients showed the differences between various age groups and most of them were found in the mandibular posterior area. However, sex and the type of malocclusion are not to be considered as a contributing factor of IO.

Keyword

Osteosclerosis; Radiography, Panoramic; Malocclusion

MeSH Terms

Female
Humans
Jaw
Korea
Male
Malocclusion
Malocclusion, Angle Class I
Malocclusion, Angle Class II
Malocclusion, Angle Class III
Mandible
Orthodontics
Osteosclerosis
Prevalence
Radiography, Panoramic
Retrospective Studies
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