Removable denture process of common errors

Tongue rod shape and location of design errors:

1. Sagittal cross-section shape of the tongue lever error (semi-circle, ellipse, triangle, ribbon, etc.)

2. The location of the tongue lever is too low or too high

3. The sharp edges of tongue pole

The sagittal section of the tongue lever half pear-shaped, thin upper edge to the organization of transitional lower edge of the thick blunt, tongue pole position does not affect the activities of the soft tissue in the floor of the mouth on the principle, the lower the better

The tongue lever from the gingival margin, the minimum distance should be greater than 3mm, after the completion of the tongue bar vertical height should be greater than 3mm.

The tongue plate shape design requirements: the tongue plate should be as thin as possible, consistent with the morphology of the teeth and outreach gap, try to make patients feel less than the increase in thickness and shape change, tongue board edge should be above the surface of the teeth, tongue, carina natural curvature should not exceed more than 1/3 of the tongue in addition to the cover adjacent the gap to the point of contact, half pear-shaped tongue lever is dental supplies always present, making the lower edge of the tongue plate is the thickest, serious violation of the principle of connection body design

Common error of the small interconnect design

1. Small connection body is too thick

2. Small linkers inserted into the undercut area

3. Covering the gums organization too much

4. Small interconnect in order to avoid too thick you can use the v-shaped structure

In addition, the small connection of contact with the abutment axial plane should not be placed on the convex, should be located in the outreach gap, as far as possible so that the tongue body do not feel as little as possible to cover the small connection of the gingival tissue should be located in the outreach gap undercuts District.