title: Characteristics of Mesiodens and Its Related Complications.
abstract: OBJECTIVE
  The purpose of this study was to evaluate the effect of mesiodens on adjacent permanent anterior teeth according to mesiodens characteristics.
  
  
  METHODS
  To evaluate complications associated with mesiodens, according to its characteristics, a total of 107 children were studied who had a chief complaint of mesiodens. The number, morphology, direction of eruption, position of mesiodens, root developmental stage and complications related to adjacent permanent maxillary central incisors (APMCIs) were evaluated by radiographic imaging.
  
  
  RESULTS
  The final sample was 107 children and total number of mesiodens was 153. Among these patients, 67 percent showed clinical complications. The primary morphologic type was conical (96.1 percent) and the most common direction of eruption was inverted (56.2 percent). Most mesiodens (80.4 percent) were located on the palatal side of the APMCIs.
  
  
  CONCLUSIONS
  The direction of mesiodens and the eruption period of adjacent permanent incisors affected the complication rate. The positional relationship between mesiodens and adjacent permanent central incisors had the strongest influence on both eruption disturbance and displacement of permanent central incisors.
authors.affiliation: Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul, Korea.
authors.forename: Ok Hyung
authors.initials: OH
authors.lastname: Nam
authors.affiliation: Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul, Korea.
authors.forename: Hyo-Seol
authors.initials: HS
authors.lastname: Lee
authors.affiliation: Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul, Korea.
authors.forename: Mi Sun
authors.initials: MS
authors.lastname: Kim
authors.affiliation: Department of Dentistry, Graduate School, Kyung Hee University, Seoul, Korea.
authors.forename: Kwan Hee
authors.initials: KH
authors.lastname: Yun
authors.affiliation: Department of Dental Education, School of Dentistry, Kyung Hee University, Seoul, Korea.
authors.forename: Jae-Beum
authors.initials: JB
authors.lastname: Bang
authors.affiliation: Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul, Korea. pedochoi@khu.ac.kr.
authors.forename: Sung Chul
authors.initials: SC
authors.lastname: Choi
mesh_terms: D006801:Humans; D007180:Incisor; D014078:Tooth Eruption; D014092:Tooth Root; D014096:Tooth, Supernumerary