Turner syndrome isochromosome karyotype correlates with decreased dental crown width

European Journal of Orthodontics
Sara RizellHeidrun Kjellberg


The aim of this project was to study possible influences of Turner syndrome (TS) karyotype and the number of X chromosomes with intact short arm (p-arm) on dental crown width. Primary and permanent mesio-distal crown width was measured on plaster casts from 112 TS females. The influence on crown width of four karyotypes: 1. monosomy (45,X), 2. mosaic (45,X/46,XX), 3. isochromosome, and 4. other, and the number of intact X chromosomal p-arms were investigated. In comparisons between karyotypes, statistically significant differences were found for isochromosome karyotype maxillary second premolars, canines, laterals, mandibular first premolars, and canines, indicating that this karyotype was the most divergent as shown by the most reduced crown width. When each karyotype group were compared versus controls, all teeth in the isochromosome group were significantly smaller than controls (P < 0.01-0.001). The 45,X/46,XX karyotype expressed fewer and smaller differences from controls, while 45,X individuals seemed to display an intermediate tooth width compared with 45,X/46,XX and isochromosomes. No significant difference in crown width was found comparing the groups with one or two intact X chromosomal p-arms. Both primary and perman...Continue Reading


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Apr 26, 2012·European Journal of Orthodontics·Sara RizellHeidrun Kjellberg
Feb 12, 2013·European Journal of Orthodontics·Sara RizellHeidrun Kjellberg
Jun 3, 2014·Acta Odontologica Scandinavica·Raija Helena PentinpuroLassi Juhani Alvesalo
May 31, 2018·Special Care in Dentistry : Official Publication of the American Association of Hospital Dentists, the Academy of Dentistry for the Handicapped, and the American Society for Geriatric Dentistry·Angela Pia CazzollaMaria Grazia Lacaita
Jul 15, 2017·European Journal of Endocrinology·Claus H GravholtUNKNOWN International Turner Syndrome Consensus Group
Apr 20, 2021·International Journal of Clinical Practice·Sevgi ZorluOzlem Balci Ekmekci

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