Abstract
A new method for analyzing centric interocclusal records is easily adapted to a Whip-Mix (Whip-Mix Co., Louisville, Ky.) articulator using items available in dental supply catalogs and flags readily cast in any dental laboratory. If a constant vertical dimension of occlusion is used or a hinge axis point is accurately located, the instrument can verify that two centric relation records are identical. The importance of accurate centric interocclusal records when preparing a reconstruction or making a diagnostic mounting cannot be overstated. Centric interocclusal records are made of many different materials, and the literature is replete with information regarding the importance of accuracy in centric interocclusal records.‘-4 There are several methods in current use to verify or evaluate centric interocclusal records, but none is as easy or accurate as the method presented in this article.‘-* This new device for analyzing centric interocclusal records, easily made for a Whip-Mix or Stuart (Stuart Instrument and Pantograph Co., Ventura, Calif.) articulator, will determine the accuracy of centric interocclusal records by permitting evaluation of the position of the mandible in relation to the maxillae in three planes. The direction of the error in record making can be determined, the accuracy of the hinge axis location can be evaluated, the changes in the hinge axis during temporomandibular joint resolution can be recorded, and the differences in materials used to make interocclusal records can be evaluated. In addition, the analyzer can be used as a teaching aid to analyze operator variability in making centric relation records.
Published Version
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