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A Clinical Evaluation of Materials for Interocclusal Registration in Centric Relation The following conditions for the record of posterior section were tested . The initial resistance of interocclusal recording materials to closure changed from N to N, and a rapid rise in the working time was seen in all elastomers. Statement of Problem: Interocclusal recording materials should have good dimensional stability for precise articulation. Purpose:The aim of this in vitro study.

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However, the accuracy of different interocclusal record materials to articulate digital models has yet to be evaluated. Published by Elsevier Inc.

Comparison of five interocclusal recording materials.

Accuracy and dimensional stability of four interocclusal recording materials. Millstein PL, Hsu C. This article has been cited by. Dental Materials, Properties and Manipulation.

Philips science of Dental materials. Moreover, successful treatment integocclusal highly dependent on precise mounting of the casts in the articulator. Five cast pairs upper and lower arches were obtained for each patient, in such a way that each tested combination of materials would be represented by a pair of casts with their own standard measurements for evaluation.

Perforations were made in the resin with a 5 spherical bur to retain the material Fig. Therefore, the method permits the transposition of the results obtained to edentulous cases that require intermaxillary records for mounting in maximum intercuspation when the stability factors are not reckrding, or in centric relation.

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Cylinders of 7 wax were softened with a heated spatula and set in place during the clinical procedures. When maximum intercuspation is considered, in cases in which the number of teeth present is satisfactory and will provide cast stability, the casts rcording be mounted by manual articulation After the material jelled, the records were removed Fig.

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Interocclusal recording materials

In this study, the combination of acrylic resin and wax presented the lowest mean value of vertical separation between casts. These results are consistent with those reported by other authors, who stated that elastomers may suffer distortion at the time of cast joining, due to the compressive force generally exercised recorcing maintain the casts in position 5,11, Clinical evaluation of interocclusal recording materials in bilateral free end cases. The aim of this in vitro study was to evaluate and compare the dimensional stability of three types of interocclussal recording materials at various time intervals.

One method of articulating digital models is materiaks use a digitized interocclusal record. The pair of casts of each patient was first articulated manually in maximum intercuspation and fixed with rigid wooden rods and compound. For the records made with condensation silicone, the material was divided into two equal parts placed in the right and left edentulous regions of the lower arch and the patients were instructed to intdrocclusal normally in maximum intercuspation Fig.

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Comparison of five interocclusal recording materials.

The materials used in the study were polyvinylsiloxane Virtual rexording, zinc oxide eugenol paste Superbite and Bite registration wax Alumax. Furthermore, the lack of teeth that articulate with their antagonists poses an additional difficulty to recording and increases the need recorcing accurate transfer of the interocclusal relationship and vertical dimension 8.

Despite its favorable properties, ZOE is a brittle material that strongly adheres to the dental surface due to contractions and, in the presence of excesses, it may suffer rupture and distortion and cause vertical displacement 9,17, A study materils interocclusal record materials. From the combination of materials investigated in this study, the following scale of fidelity can be settled from best to worst result: Mean percentage changes between different types of interocclussal recording materials at various time intervals Click here to view.

Karthikeyan K, Annapurni H. An In Vitro Study G. An In Vitro Study.

Compressive strength of interocclusal recording materials. Int J Prosthodont ; An in vitro study. In cases of edentulous areas, the ZOE paste in combination with the register base tends to dislocate the underlying mucosa, resulting in articulator mounting with a slight vertical opening