Abstract
Interocclusal recording for removable partial
denture in bilateral mandibular distal extension
were evaluated for the differences of the interocclusal
recording material utilized during different
impression techniques. The purpose of this study
is to develop interocclusal recording utilizing
occlusion rims with high accuracy.
The intraoral model with urethane rubber
mucosa with 3 metallic spheres as measuring
points was utilized. With the applied pressure
(functional) and minimum pressure (anatomical)
impression techniques, working casts were fabricated.
Interocclusal recording was registered with
the occlusion rim on the intraoral model unto the
articulator by applying the interocclusal materials;
paraffin wax (PW), ALUWAX (AW), impression
paste (IP) and Exabite II (EB). Analyses were conducted
with the three-dimensional analyzer and calculated
for the amount of vertical and antero-posterior
displacement between the intraoral model
and the working cast. The results were that PW had
the greatest displacement, especially with the
functional impression technique, while AW had
minimum displacement especially in the posterior
direction. With the functional impression technique
utilizing AW was revealed to minimize the
amount of interocclusal displacement.
