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Maxillary expansion of unilateral cross‐bite in preschool children
Author(s) -
LINDNER ANDERS,
HENRIKSON CARL O.,
ODENRICK LARS,
MODÉER THOMAS
Publication year - 1986
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/j.1600-0722.1986.tb01781.x
Subject(s) - medicine , maxilla , malocclusion , dentistry , orthodontics , crossbite , radiography , dentition , molar , permanent dentition , surgery
– The influence of a low force appliance on the maxilla in correction of unilateral cross‐bite was studied clinically and radiographically in 29 preschool children following a standardized treatment schedule. Four weeks' expansion was followed by a 4‐wk retention and a 12‐wk postretention period. Inter‐ and intraobserver evaluations of the reliability of the measurements on radiographs were performed. In all children but one the cross‐bites were corrected after 4 wk of expansion. The mean maxillary expansion was 3.3 mm in the second molar and 1.3 mm in the canine region, but decreased to 1.5 mm and 1.0 mm, respectively, at the end of the postretention period without relapse of the corrected malocclusion. No significant remaining orthopedic effects could be registered on radiographs by this low force appliance used. The modified quad helix appliance was found to be suitable for correction of unilateral crossbite in the primary dentition and was well tolerated by the children.