Waxing
Retentive quality
Esthetics values of the denture
The art portion of the polished surfaces should for esthetics reasons imitate the form of the healthy tissues around the natural teeth
A slight root projection to follow the individual tooth should be carried out
The form of the denture bases between the teeth and the denture border should be shaped in such a manner as to aid retention by the mechanical directional forces of the muscles and tissues
On the palatal surface of the maxillary denture must be enough space for the tongue ( speaking ability )
The lingual flange of the mandibular denture should have the least possible amount of bulk except at the border, which should be quite thick.
An excess of baseplate wax is added onto the buccal and labial surfaces of the mandibular and maxillary trial dentures.
The bulk of the wax is cut back to the outer border of the cast and then the small end of a knife is held at 45-degree angle to the tooth surface to form the wax gingival margin
The common tendency is to cut this line too straight across from interproximal to interproximal and not leave spaces. It is well to leave a surplus of wax along the gingival line at this time and then retrim
Triangular markings can be placed as a guide to the lenght and position of the root indications (canin, central, lateral)
The wax is scraped out of the spaces between these triangular indications, after which the wax root indications will be came manifest
These sharp and rough root indications are now rounded with a large scraper and the spatula
The lingual surface of the mandibular denture may be made slightly concave without the concavitity being extended under the lingual surface of the teeth.
A projection of the tooth beyond the polished surface acts as an undercut into which the patient’s tongue will slip, thereby causing the denture to be unseated
The palatal surface of the maxillary denture should be waxed to a nearly uniform thicness of 2.5 mm.
