title: Mutations in the MSX1 gene in Turkish children with non-syndromic tooth agenesis and other dental anomalies.
abstract: OBJECTIVE
  To search for mutations on the MSX1 gene and to present a genetic basis for non-syndromic tooth agenesis in conjunction with dental anomalies in a Turkish population.
  
  
  METHODS
  The patients included in this study were otherwise healthy, with ages ranging from seven to eighteen years. Eighty-two of them had one to six teeth missing (Group I) and 26 had more than six teeth missing (Group II), except for the third molars,. The missing teeth and dental anomalies were examined clinically and radiographically. The MSX1 gene was sequenced from the blood samples of patients who consented to the study.
  
  
  RESULTS
  Mutations or polymorphisms on the MSX1 gene were identified in six patients. Taurodontism was seen in patients from both groups I and II. The nucleotide changes were identified by mutation screening.
  
  
  CONCLUSIONS
  Performing family studies, screening other candidate genes, and investigation of interactions between genes will provide a basis for better analysis of tooth agenesis models and their association with other dental anomalies.
authors.affiliation: Department of Pediatric Dentistry, Faculty of Dentistry, Süleyman Demirel University, Isparta, Turkey.
authors.forename: Derya
authors.initials: D
authors.lastname: Ceyhan
authors.affiliation: Department of Pediatric Dentistry, Faculty of Dentistry, Süleyman Demirel University, Isparta, Turkey.
authors.forename: Zuhal
authors.initials: Z
authors.lastname: Kirzioglu
authors.affiliation: Department of Medical Biology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey.
authors.forename: Nilufer Sahin
authors.initials: NS
authors.lastname: Calapoglu
keywords: Dental anomalies; MSX1; tooth agenesis