치과 내원 환자의 치아 이상(dental anomaly)에 관한 연구
A study on the prevalence of dental anomalies in Korean dental-patients
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본 연구는 본원에 내원한 환자에 있어서 결손치, 매복치, 과잉치의 빈도 및 형태적 이상 등을 관찰하고자 하였다. 연구대상으로는 2009년 1월부터 2010년 6월까지 한림대학교 성심병원 치과에 내원한 환자를 대상으로 조사하였으며 의무기록지, 파노라마 방사선사진을 토대로 치아 이상에 대하여 성별, 치아 이상의 종류와 발생위치별로 조사하였다. 본 연구에서는 치아의 선천적 결손, 과잉치, 왜소치, 매복치, 변위치에 대한 치아 이상을 연구하였다. 연구기간 동안 전체 내원하여 파노라마 방사선사진을 찍은 환자 3,133명 중 치아 이상을 가진 환자의 비율은 11.55%였다. 그 중 선천적 결손치를 가진 환자의 내원율은 5.71%로 가장 높았고, 매복치를 가진 환자는 3.09%였다. 과잉치, 왜소치, 변위치를 가진 환자의 비율은 각각 1.79%, 1.66%, 0.45%를 차지하였다. 치아의 수나 형태의 변화는 환자의 치료 시 고려해야 할 필수적인 요소이다. 그러므로 치료를 위해 치과에 내원한 환자뿐만 아니라 구강검진으로 내원한 환자에서도 파노라마 방사선사진을 채득한다면 국민 구강보건 향상에 큰 도움이 될 것으로 생각된다.
Abstract
Objective: The purpose of this study was to investigate the prevalence of dental anomalies in outpatient clinics. Methods: The subjects of this study were 3,133 patients who visited the clinic between January 2009 and June 2011. The dental records and panoramic films of the patients and detection of supernumerary, missing, and impacted teeth, transposition, and peg lateralis were reviewed. The results were analyzed according to gender and types and locations of dental anomalies. Results: Among the patients, 362 had dental anomalies, with a prevalence rate of 11.55%. Congenital missing teeth (5.71%) ranked first in the categories, and impacted teeth (3.09%) ranked second. The percentage of patients having supernumerary teeth, peg lateralis, and dislocated teeth were 1.79%, 1.66%, and 0.45%, respectively. Conclusions: Congenital missing teeth and impacted teeth are, respectively, the first and second most common dental anomalies in Korean dental patients.
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