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1. Tilt from a horizontal position to the side
larger undercuts in the mesio-lingual side of the molars.
larger undercut area on the buccal side of the left premolar.
2. Tilt from a horizontal position towards anterior
Larger undercut on the mesio-buccal side of the right premolar.
Path of insertion:
Aligning the model in order to achieve:
The path of insertion is mainly adjusted to create more advantageous aesthetical solutions, especially in visible areas.
The models are tilted so that the clasp arms lie close to the gingival margin (min. distance of 1mm).
In the lower jaw, the retention area is often on the lingual side of the molar.