![]() ![]() It is therefore important to carefully check the occlusion at denture delivery and remount the prostheses if necessary. ![]() This clinical-experimental study demonstrates that relining complete dentures with the open-mouth technique may lead to a substantial denture shift and thus imply inevitably clinically relevant occlusal discrepancies. The precision of the CBP-registrations proved 0♵ mm before and 0♳ mm after reline hence, the measured condylar displacement after reline could not attribute to a methodological bias. ![]() With an average of 2♰ mm, this displacement was smaller following a lower denture reline (right and left mean, 1♶ mm). An upper denture reline leads to a mean displacement of 2♵ mm, both in the right and left condylar area. The average denture displacement from an initial reference position (CR) was calculated for each registration. For each registration, the right and left condylar position was recorded in three dimensions using a custom-made measuring device. The centric relation (CR) was recorded with the Central-Bearing-Point (CBP) method three times before and three times after the reline. The HANAU Spring-Bow is an earpiece-type facebow, used to capture and record the patients maxillary arch and its relationship to the external auditory. In 21 complete denture wearers, six upper and 15 lower denture relines were performed with the open-mouth technique. ![]()
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