Journal of the Korean Academy of Pediatric Dentistry 2007;34(4):646-650.
Published online November 30, 2007.
THE INCIDENCE OF MESIODENS
Jong-Bin Kim1, Jong-Soo Kim2, Ji-Eun Park2
1Kizwell Dental Network,
2Dept. of Pediatric Dentistry, School of Dentistry, Dankook University 
상악 정중과잉치의 발병율
김종빈1, 김종수2, 박지은2
1키즈웰 치과
2단국대학교 치과대학 소아치과학교실
Correspondence:  Jong-Soo Kim,  Tel: +82-41-550-1935, Fax: +82-41-555-2329, Email: jskim@dku.edu
Abstract
The purpose of this study was to evaluate the prevalence of mesiodens at pediatric dental clinic in Anyang, Kyeong Gi-Do. From retrospective reviews of all patients who visited Kizwell pediatric dental clinic from 2003.4-2006.4, 241 patients (289 mesiodens) who were shown to have mesiodentes were examed by a periapical radiograph and a panoramic radiograph. The incidence of mesiodens was 3.42% and the ratio of male/female (184/57) was 3.2:1. The number of supernumerary teeth was one in 193 cases (80%), two in 48 cases (20%). The mesiodens was placed at left side more frequently and the most common shape was conical type (208, 78%). Of 289 mesiodens, the direction of the crown of the mesiodens was inverted in 156 (54%), in a normal direction in 104 (36%), in a horizontal direction with regard to the tooth axis in 29 (10%). Early diagnosis of the mesiodens allow the most appropriate treatment, often reducing the extent of surgery, orthodontic treatment and possible complications.
Key Words: Mesiodens, Impaction
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