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Complete denture displacement following open-mouth reline

Utz, K-H
Schneider, D
Feyen, J
Grüner, M
Bayer, S
Fimmers, R
Published in Journal of Oral Rehabilitation. 2012, vol. 39, no. 11, p. 838-46
Abstract In 21 complete denture wearers, six upper and 15 lower denture relines were performed with the open-mouth technique. The centric relation (CR) was recorded with the Central-Bearing-Point (CBP) method three times before and three times after the reline. For each registration, the right and left condylar position was recorded in three dimensions using a custom-made measuring device. The average denture displacement from an initial reference position (CR) was calculated for each registration. An upper denture reline leads to a mean displacement of 2·5 mm, both in the right and left condylar area. With an average of 2·0 mm, this displacement was smaller following a lower denture reline (right and left mean, 1·6 mm). The precision of the CBP-registrations proved 0·5 mm before and 0·3 mm after reline; hence, the measured condylar displacement after reline could not attribute to a methodological bias. 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. It is therefore important to carefully check the occlusion at denture delivery and remount the prostheses if necessary.
Keywords AgedAged, 80 and overCentric RelationDental ArticulatorsDental OcclusionDenture RebasingDenture, CompleteDenture, Complete, LowerDenture, Complete, UpperFemaleHumansImaging, Three-Dimensional/methodsJaw Relation Record/instrumentation/methodsMaleMandibular Condyle/anatomy & histologyMiddle AgedTime Factors
PMID: 22831175
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Research group Groupe Muller Frauke (médecine dentaire) (797)
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UTZ, K-H et al. Complete denture displacement following open-mouth reline. In: Journal of Oral Rehabilitation, 2012, vol. 39, n° 11, p. 838-46. https://archive-ouverte.unige.ch/unige:28909

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Deposited on : 2013-07-12

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