Movement of the maxillary dentition during rapid palatal expansion and post-activation retention
Date
1974
DOI
Authors
Christensen, Steven C.
Version
OA Version
Citation
Abstract
Rapid expansion of the midpalatal suture is perfonned as an orthopedic
procedure to correct basal defficiencies reflected as dental crossbites. Historically, this procedure was used by rhinologists and
orthodontists in the late 19th century; however, if fell into disuse
after some investigators proposed a functional concept which believed
that by moving teeth orthodontically the change in function stimulated
growth of the maxilla and nasal cav1ty. Tlhe last generation has brought
renewed utilization of rapid palatal expansion therapy due in part to
investigations that show sutural separation can be achieved.
The purpose of this investigation was to analyze the dental response
to rapid palatal expansion. Twenty-one patients were selected. With no
regard as to sex or ages they were divided into two groups, one wearing
a split acrylic and one wearing an hygienic expansion appliance.
Records eonsisted of stone models representing 3 stages of expansion
therapy: one inunediately precedes insertion and activation of the appliance,
one imnediately after deactivation and stabilization of the appliance
and one after 3 100nths of fixed retention. Markings were made on
the teeth from which various measurements were made: ... [TRUNCATED]
Description
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Thesis (M.Sc.D.)--Boston University School of Graduate Dentistry, 1974. Orthodontics.
Bibliography included.
Thesis (M.Sc.D.)--Boston University School of Graduate Dentistry, 1974. Orthodontics.
Bibliography included.
License
This work is protected by copyright. Downloading is restricted to the BU community. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.