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J Korean Acad Pediatr Dent. 2010;37(3): 328-337.
A STUDY ON THE TRAUMATIC INJURIES TO PRIMARY TEETH
Youn-Joo Chung, Kwang-Chul Kim, Jae-Hong Park, Sung-Chul Choi
Department of Pediatric Dentistry, School of Dentistry, Kyung-Hee University
Corresponding Author: Sung-Chul Choi ,Tel: 02-958-9373, Email: pedochoi@khu.ac.kr
Received: March 15, 2010;  Accepted: August 13, 2010.
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ABSTRACT
The purpose of this study was to research the traumatized primary teeth and investigate following factors: sex, age, cause, place and time(of the year) of injury, elapsed time, area and type of injury, dental treatment and prognosis. The analysis includes total of 1533 traumatized primary teeth from 758 children aging from 6 months to 6 years(mean age: 2.8) from 2003 to 2007. The result follows : 1. The children of age between 1-2 and 2-3 were involved in the largest number of injuries in both sexes with boy/girl ratio of 1.77:1(p<0.001). 2. Fall and collision were the main causes of traumatic dental injury, especially in younger children(p<0.05). Places of injury occurrence varied: home, outdoors, and kindergarten. Warm climate accounts for frequent outdoor injuries in May, September and October(p<0.001). 3. Most of the children visited dental clinic within 24 hours of the injury(77.6%). From March to September, dental trauma occurrences were distributed evenly, except for Winter period(p<0.001). 4. Upper central incisors were the most commonly affected teeth, and the injuries usually involved 1 tooth or 2 teeth. 5. Periodontal tissue injuries dominated and subluxation was the most common type. Lateral luxation, enamel fracture, intrusion and root fracture followed.
Keywords: Traumatic dental injuries | Primary teeth | Epidemiology
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