Imaging Sci Dent.  2013 Jun;43(2):91-98. 10.5624/isd.2013.43.2.91.

The relationship between radiological features and clinical manifestation and dental expenses of keratocystic odontogenic tumor

• Min JH
• Huh KH
• Heo MS
• Choi SC
• Yi WJ
• Lee SS
• Bae KH
• Choi JW

• KMID: 1974435
• DOI: http://doi.org/10.5624/isd.2013.43.2.91

Abstract

PURPOSE
This study was performed to identify correlations between keratocystic odontogenic tumor (KCOT) data from CT sections, and data on the KCOT clinical manifestation and resulting dental expenses.
MATERIALS AND METHODS
Following local Institutional Review Board (IRB) approval, a seven-years of retrospective study was performed regarding patients with KCOTs treated at the Seoul National University Dental Hospital. A total of 180 KCOT were included in this study. The following information was collected: age, gender, location and size of the lesion, radiological features, surgical treatment provided and dental expenses.
RESULTS
There was no significant association between the size of the KCOT and age, gender, and presenting preoperative symptoms. In both jaws, it was unusual to find KCOTs under 10 mm. The correlation between the number of teeth removed and the size of the KCOT in the tooth bearing area was statistically significant in the mandible, whereas in the maxilla, no significant relationship was found. Dental expenses compared with the size of the KCOT were found to be significant in both jaws.
CONCLUSION
The size of KCOT was associated with a significant increase in dental expenses for both jaws and the number of teeth removed from the mandible. These findings emphasize the importance of routine examinations and early detection of lesions, which in turn helps preserving anatomical structures and reducing dental expenses.

Keyword

Odontogenic Tumors; Computed Tomography; Cost of Illness

MeSH Terms

Cost of Illness
Ethics Committees, Research
Humans
Jaw
Mandible
Maxilla
Odontogenic Cysts
Odontogenic Tumors
Retrospective Studies
Tooth
Ursidae

Figure

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  Fig. 1 Measurements of keratocystic odontogenic tumor in the mandible using axial computed tomographic images. A. The longest mesiodistal dimension of the cystic lesion is measured parallel to the long axis of the mandibular body. B. The longest bucco-lingual dimension of the cystic lesion is measured perpendcular to the long axis of the mandibular body.

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  Fig. 2 Measurements of keratocystic odontogenic tumor in the maxilla using axial computed tomographic images. A. The longest mesiodistal dimension of the cystic lesion is measured parallel to the coronal plane of the maxilla. B. The longest bucco-lingual dimension of the cystic lesion is measured parallel to the sagittal plane of the maxilla.

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  Fig. 3 Mandibular keratocystic odontogenic tumor (KCOT) distribution by the mesio-distal dimension

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  Fig. 4 Mandibular keratocystic odontogenic tumor (KCOT) distribution by the bucco-lingual dimension

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  Fig. 5 Maxillary keratocystic odontogenic tumor (KCOT) distribution by the mesio-distal dimension

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  Fig. 6 Maxillary keratocystic odontogenic tumor (KCOT) distribution by the bucco-lingual dimension

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