A prospective comparison clinical study was designed to
evaluate the effectiveness of the open bite bionator and the
upper posterior bite plane with a crib in the early treatment of
skeletal anterior open bite .
The bite plane /C sample (G1) incl
uded 20 subjects, 11
girls and 9 boys. The average age was 8.6 Years . The OBB
sample (G2) contained 20 subjects, 8 girls and 12 boys. The
average age was 8.8 years . Lateral cephalograms were
analyzed at T1 and T2 (T2 : after one year of treatment ) to
study the changes of the hard and soft tissues by using a special
program known as ADOrthoA.
Since early Orthodontics, one of the main concerns is to correct Skeletal
Class II. For this Purpose they designed different functional appliances, and
performed many cephalometric studies to evaluate treatment results for
these appliances on dent
ofacial complex. Our clinical experience, show the
ability of treatment of preadolescents by advancement the mandible in
skeletal class II correction with Sliding Plates. and for this purpose, lateral
cephalometric study was performed to evaluate treatment results at
dentofacial complex. 19 preadolescents ages 11-14 years with skeletal class
II and mandibular retrognathism Sliding Plates consist of two separated
removable parts, the upper one has midpalatal expansion and vertical wire,
the lower is provided with anterior bite plane. The plates were used for 6-12
months. Lateral cephalograms were taken before treatment and
immediately after treatment. The results after treatment were compared
with the pretreatment measurements before treatment. After treatment,
advancement of the mandible and the parts of TMJ has been observed.
Thus, the use of sliding plates are useful to correct skeletal class II with
mandibular retrognathism, especially in cases associated with narrow upper
dental arch for children their ages do not permit the use of pre-functional
preparation, and additionally, in cases that require functional
rehabilitations.
This study aims to determine the skeletal problems in
sagittal plane in patients with congenital hypodontia. In this
study, 96 cephalograms were taken of Syrian coastal father
and mother. The sample was divided according to gender
and to location
of the missing teeth. The angles SNA, SNB
and ANB were studied.
