Patient Visit 4

 Laboratory Procedures

Remounting the Maxillary Denture (Prior to denture delivery)
 

1. Equipment and Materials:
a. Maxillary finished and polished denture
b. Maxillary remount cast
c. Bowl and spatula
d. Articulator and mounting plate
e. Remount jig and occlusal index
f. Mounting stone

2. Procedure:
a. Place the mounting plate on the upper member of the articulator.  Attach the remount jig with its occlusal index to the lower member of the articulator.  Set the incisal guide pin at the zero mark.
b. Place the maxillary denture on its remount cast.  Fit the maxillary denture into the occlusal index.
c. Mix a small amount of mounting stone and attach the maxillary remount cast to the upper member of the articulator.
d. After the stone has hardened, remove the mounted cast from the articulator.  The mounting should be trimmed and smoothed until it is neat.
e. Place the maxillary and mandibular dentures in a plastic bag with water.  The dentures should always be kept in water to prevent dimensional changes due to evaporation.  Remember to wash them with soap and disinfect them prior to placing them in the patient's mouth.
f. Have the remount casts with the maxillary cast mounted on the articulator, the occlusal index, and the processed dentures graded through your faculty  prior to the patient appointment.

 Grading Criteria for Remount Casts Prior to Denture Delivery
 

- Grade A - Remount casts allow accurate, stable positioning of maxillary and mandibular dentures.  Casts are clean and neatly trimmed.  Maxillary cast is mounted on articulator and fits smoothly and accurately into occlusal index provided.
- Grade B - Minor discrepancies from above which do not compromise the quality of the clinical treatment.  Base slightly thicker or thinner than ideal.  Remount casts a little rough.
- Grade C - Remount casts are dirty, roughly formed, and/or dentures do not seat on the casts in stable manner.  Mounted maxillary denture does not fully or smoothly seat into occlusal index provided.
- Grade E - Remount casts are not present or are so inaccurately formed that accurate positioning of the dentures on the casts is not possible.