CANINE IMPACTION: HOW EFFECTIVE IS EARLY PREVENTION? AN AUDIT OF TREATED CASES
John Mew
BDS, Lond; LDS, RCS, Eng; MFGDP, (UK); M.Orth, RCS, Edin; Visiting Professor
The London School of Facial Orthotropics
Croydon, London, CR8 2NE, UK
CV
John Mew graduated in dentistry at University College London, and then
trained in Orthognathic surgery. Seeking alternatives to facial surgery he
moved to the speciality of orthodontics in 1965. Since then he has been
developing non-surgical methods of correcting unattractive vertical growth
in children’s faces, using ‘orthotropics’ to encourage horizontal growth.
A practising clinician, his principal research interests are the aetiology of
malocclusion and the guidance of facial growth.
Currently he is Clinical Director of the London School of Facial Orthotropics,
and Visiting Professor at the “Victor Babeș” University of Medicine and
Pharmacy, Timișoara, România. He was honoured with life membership of the
British Dental Association in 1999.
Questions
Which are the factors that may influence canine impaction?
q a.
q b.
q c.
q d.
Small or missing central incisors;
Protruded incisors;
Genetic predisposition;
Mesially inclined mandibular first pre-molars.
What does Orthotropics treatment involve?
q a.
q b.
q c.
q d.
Expansion to move the maxilla and incisors forward;
Move maxilla backward;
Expansion to move the incisors forward;
Expansion to move the jaw forward.
Which is the semi-rapid rate of maxilla expansion?
q a.
q b.
q c.
q d.
Half of millimeter per day;
One quarter of a millimeter per day;
One millimeter per day;
Eighth of a millimeter per day.
Which is the best age for starting Orthotropics procedure?
q a.
q b.
q c.
q d.
Before the age of fourteen;
Before the age of ten;
Before the age of twelve;
Before the age of seven.
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