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69
Model No. 317. Female. Age 10 2/i2ths.
Diagnosis:—
Class i. Neutroclusion. Small jaws.
Crowded. No room for | 3 Linguoversion 2 | Linguoversion
2 |. Crowded out labially. 3 |.
Report of the Royal Dental Hospital 0rthodontic Specialist:—
There is a slight tendency to distal occlusion of the lower jaw
which I think may be ignored as it does not complicate the case
and shows no tendency to progress.
Face and jaws are both small and teeth rather disproportionately
large. I think treatment should be by reducing the number of
teeth rather than attempting to expand the jaws. I suggest the
immediate extraction of 4 | 4.
1 1
The extraction of 1 | will relieve crowding in lower jaw
completely and at the same time release the 2 [ (at present in lingual
occlusion to 1 |) to come forward. I think the pressure of the
tongue should push forward the 2 | into line without further interference.
Extraction of | 4 will enable | 3 to come into place Extraction
of 4 j will similarly allow | 3 to erupt, it should at the same
time give the necessary room to allow 2 | to come forward. All
this may be expected to occur without any mechanical interference,
but I should watch the case rather closely after the extractions and
if any tendency for the 5 | 5 to come forward manifested itself,
I should insert a vulcanite splint plate to hold them back. If this
has to be done it might be advisable to incorporate in the same
plate a device to push forward the 2 | (I prefer a screw sunk in
the vulcanite). I should at the same time design the plate to
prevent | 2 from moving laterally into the space required for
| 3 though I think this unlikely.
Should the 2 [ delay unduly in coming forward, a splint plate
mipht possibly be required to prevent 3 | 1 from encroaching on
the space required. (Signed) A. N. AINSWORTH.
Me lei No. 307. Female. Age 9 6/12ths.
Diagnosis:—
Class 1. Labioversion 21 j 1. Inferior Retrusion. Finger,
sucker.
Report of the Royal Dental Hospital Orthodontic Specialist:—
Mouth breathing habit continues. (Operation for Tonsils and
Adenoids at 4 years.)
At present I suggest "oval screen " to be worn at night; " lip
exercisor," and instruction in proper breathing. X-ray shows
3 3 in favourable alignment, so that at a later date the case could
be treated by extraction of 4 | 4 and retraction of 321 1123.
(Signed) S. A. RIDDETT.