DENTAURUM Tomas Modo De Empleo página 18

5.3 tomas -transfer cap
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To transfer the clinical position of the tomas -pin to a model, slide the tomas -transfer
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cap over the head of the tomas -pin. In the case of the tomas -pin SD, the tomas -
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transfer cap should be positioned so that the retention wings follow the course of a
slot. There are additional markings of the slots for positioning on the bottom of the
tomas -transfer cap (see Fig. 3).
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The tomas -transfer cap is anchored by alignment on the hexagon of the tomas -pin
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and the upper cylindrical part of the gingival collar. The cap is positioned correctly if
the lower border of the tomas -transfer cap is aligned with the lower border of the
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cylinder (see Fig. 4). If parts of the cylinder or the entire cylinder lie beneath the gingiva,
the tomas -transfer cap has to be shortened. If an impression of two tomas -pins next to
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each other is required, the retention wings of the tomas -transfer caps should not touch
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one another. The wings can be shortened by milling.
Before taking the impression, make sure the tomas -transfer cap is fitted correctly
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on the tomas -pin. Transferring the position of the tomas -pin correctly can only be
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guaranteed with a distortion-resistant impression tray and a silicone or polyether as
impression material. Using alginate or plastic impression trays can lead to inaccuracies.
To fix the tomas -transfer cap securely in the impression, the cap has to be surrounded
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with impression material before taking the impression of the jaw. After the impression
material has hardened completely, remove the impression tray from the mouth carefully.
It is important to observe the insertion direction of the tomas -pins.
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Fig. 3 Fig. 4 Fig. 5
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