Imaging Sci Dent.  2012 Jun;42(2):77-81. 10.5624/isd.2012.42.2.77.

Odontoma: a retrospective study of 73 cases

• An SY
• An CH
• Choi KS

• KMID: 1974412
• DOI: http://doi.org/10.5624/isd.2012.42.2.77

Abstract

PURPOSE
The purpose of the present study was to retrospectively evaluate the clinical findings and treatment results for impacted permanent teeth associated with odontomas.
MATERIALS AND METHODS
We retrospectively investigated 73 odontomas in 72 patients who visited Kyungpook National University Dental Hospital from April 2004 through November 2011. The study was performed using medical records, panoramic radiographs, and pathological reports. Data gathered included age, gender, location, chief complaints, effects on dentition, and treatment of odontoma and the impacted tooth associated with odontoma.
RESULTS
Most compound odontomas (46.7%) were found in the second decade and complex odontomas were not related to age. Odontomas showed no gender predilection. Fifty-five cases (75.3%) of odontomas were detected on routine dental radiographs. Sixty percent of compound odontomas occurred in the canine area and 57.1% of complex odontomas in the molar areas. Impaction of permanent teeth (61.6%) was the most common complication on the adjacent teeth. Most odontomas (84.9%) were removed surgically and impacted permanent teeth were managed by surgical removal (53.2%), orthodontic treatment (25.5%), or surgical repositioning (6.4%). There was a statistically significant relation between age and preservation of the impacted permanent teeth associated with odontomas (p<0.01).
CONCLUSION
Early detection and treatment of odontomas increase the possibility of preservation of the impacted tooth. Therefore, it would be suggested that periodic panoramic examination during the first and second decade of life might be beneficial for the early detection and better prognosis of odontomas.

Keyword

Odontoma; Tooth, Impacted; Radiography, Panoramic

MeSH Terms

Dentition
Humans
Medical Records
Molar
Odontoma
Prognosis
Radiography, Panoramic
Retrospective Studies
Tooth
Tooth, Impacted

Figure

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  Fig. 1 Location of odontomas (A; compound type, B; complex type).

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  Fig. 2 Pre- (A) and post-operative (3 months follow-up) (B) cropped panoramic radiographs reveal the compound odontoma and normal eruption of impacted tooth after excision of odontoma mass. Cropped panoramic radiographs show preoperative compound odontoma (C) and surgically repositioned impacted tooth after excision (7 months follow-up) (D). (A. 5 years 6 months, B. 6 years, C. 17 years 6 months, D. 18 years 1 month).

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