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Association between Developmental Anomalies of Permanent Lateral Incisors and Tooth Eruption Disturbances

  • Journal of the Korean academy of pediatric dentistry
  • Abbr : J Korean Acad Pediatr Dent
  • 2020, 47(2), pp.128-139
  • DOI : 10.5933/JKAPD.2020.47.2.128
  • Publisher : The Korean Academy Of Pediatric Dentistry
  • Research Area : Medicine and Pharmacy > Dentistry
  • Received : October 31, 2019
  • Accepted : November 19, 2019
  • Published : May 29, 2020

Minji Kim 1 Ji-Soo Song ORD ID 1 Shin Teo Jeon ORD ID 2 Hong-Keun Hyun ORD ID 2 Kim, Young J ORD ID 2 Kim, JungWook ORD ID 2 Sang-Hoon Lee ORD ID 2 Jang, KiTaeg ORD ID 2

1서울대학교 치의학대학원 소아치과학교실
2서울대학교

Accredited

ABSTRACT

The purpose of this study was to examine the prevalence of developmental anomalies of permanent lateral incisor and eruption disturbances and analyze the association between two components. Panoramic radiographs of 3984 patients (aged 5 to 13 years) who visited the Department of Pediatric Dentistry of Seoul National University Dental Hospital between November 2016 and October 2017 were screened. The prevalence of developmental anomalies of permanent lateral incisors was 10.2%. The most common developmental anomalies were congenitally missing teeth(66.1%), followed by peg lateralis(33.5%). The prevalence of eruption disturbances was 16.5%. Among the patient with developmental anomalies of permanent lateral incisors, associated eruption disturbances were appeared on 31.1% of patients. Peg lateralis(p < 0.001), underdeveloped lateral incisors(p < 0.001) and dens invaginatus(p = 0.004) were associated significantly with eruption disturbance of permanent teeth. Eruption disturbance in patients with peg lateralis and dens invaginatus was most prevalent in maxillary canine. For patients with underdeveloped lateral incisor, eruption disturbance of maxillary central incisor was most frequent. It is important for patients with developmental anomalies of lateral incisors to detect associated eruption disturbance early through regular checkup. Diagnosis and treatment plan in view of such relationships is important in order to treat appropriately at the optimal time.

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