Imaging Science in Dentistry

Korean Academy of Oral and Maxillofacial Radiology (대한영상치의학회)
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A study on the prevalence of the idiopathic osteosclerosis in Korean malocclusion patients

한국인 부정교합자의 악골에 발생한 특발성 골경화증의 유병률에 관한 연구

  • Lee, Seung-Youp (Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University) ;
  • Park, In-Woo (Department of Oral and Maxillofacial Radiology, College of Dentistry, Gangneung-Wonju National University) ;
  • Jang, In-San (Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University) ;
  • Choi, Dong-Soon (Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University) ;
  • Cha, Bong-Kuen (Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University)
  • Received : 2010.07.06
  • Accepted : 2010.09.27
  • Published : 2010.12.31
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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.

Keywords

References

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