Ivoclar Vivadent SR Phonares II - Manual (Page 10)

10
formselector
Anterior mould selection
In addition to the shade, the shape (form) and size of anterior teeth should in particular be
matched to the individual characteristics of the patient. If possible, the anterior teeth should be
selected directly on the patient according to the patient's anatomical and facial characteristics.
The following methods are recommended to facilitate the tooth selection procedure:
CHAIrsIde lABsIde
As guides for designing the prosthetic reconstruction it is
advisable to use previous models or photographs of the patient. In
addition to the position of the teeth, the tooth shape can be adapted
to the original appearance of the patient.
approx.
7 mm
approx. 9 mm
Model analysis
step 1 Determine the interalar width of the
nose using the FacialMeter. Select an
appropriately sized tooth mould from
the INTER-ALA table.
step 2 Select the desired tooth form, soft or bold,
in line with the patient's face.
step 3 Select the appropriate age group of the
teeth according to the incisal wear and
facial curvature characteristics of the ante-
rior teeth.
Determine the following reference points by means of
analysing the model:
1] Position of the canines:
Determine the first large pair of rugae; the centre
of the labial surface of the maxillary canine is
positioned at a distance of 9 mm.
2] Contact point of the two central incisors:
The labial surface of the central incisors is located
at a distance of approx. 7 mm from the centre of
the incisive papilla.
Based on the length of the curve passing through
these three reference points, you can select an anterior
set of appropriate width by means of the tooth mould
chart.
mould and shade selectIon
FormS
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Phonares
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II
SR
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