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The effect of occlusal contacts on adjacent tooth.

The effect of occlusal contacts on adjacent tooth.

Journal of medical and dental sciences (2006-05-04)

Ayumi Ikeda, Hiroyuki Miura, Daizo Okada, Ayako Tokuda, Tatsuya Shinogaya

摘要

The purpose of this study was to clarify the influence of changes of occlusal contacts on adjacent tooth displacement during articulation. The amount and direction of displacement of the maxillary left first molar and adjacent teeth were measured using a displacement transducer, Type M-3. Seven subjects were included in this study. On the maxillary left first molar, 8 experimental occlusal contact points were established using platinum foil and these were divided into 2 groups, the buccal and lingual groups, which corresponded to the buccal and lingual cusps, respectively. During clenching, the buccal group showed differences in the direction of the tooth displacement paths among the 3 teeth (second premolar, first and second molar), but there was no difference in the lingual group and the direction of displacement of these 3 teeth was similar to the natural teeth. It is necessary to make at least one lingual occlusal contact point to obtain displacement of not only the abutment tooth but also the adjacent teeth.

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铂, foil, not light tested, 100x100mm, thickness 0.0125mm, as rolled, 99.95%

铂, foil, 25x25mm, thickness 0.25mm, as rolled, 99.95%

铂, foil, 25x25mm, thickness 0.1mm, as rolled, 99.99+%

铂, foil, 15x15mm, thickness 0.2mm, as rolled, 99.95%

铂, foil, 25x25mm, thickness 0.25mm, as rolled, 99.99+%

铂, foil, 25x25mm, thickness 0.125mm, as rolled, 99.95%

铂, foil, 30x30mm, thickness 0.2mm, as rolled, 99.95%

铂, foil, 50x50mm, thickness 0.1mm, as rolled, 99.95%

铂, foil, 50x50mm, thickness 0.125mm, as rolled, 99.99+%

铂, foil, 25x25mm, thickness 0.1mm, as rolled, 99.95%

铂, foil, 25x25mm, thickness 0.25mm, as rolled, 99.999%

铂, foil, 50x50mm, thickness 0.1mm, as rolled, 99.99+%

铂, foil, 50x50mm, thickness 0.125mm, as rolled, 99.95%

铂, foil, 10mm disks, thickness 0.1mm, as rolled, 99.99+%

铂, foil, 25x25mm, thickness 0.125mm, as rolled, 99.99+%

铂, foil, 6mm disks, thickness 0.025mm, as rolled, 99.95%

铂, foil, not light tested, 100x100mm, thickness 0.01mm, as rolled, 99.95%

铂, foil, 10mm disks, thickness 0.125mm, as rolled, 99.95%

铂, foil, 4mm disks, thickness 0.004mm, as rolled, 99.95%

铂, foil, 0.1m coil, thickness 0.025mm, coil width .85mm, as rolled, 99.95%

铂, foil, 0.1m coil, thickness 0.025mm, coil width 5mm, as rolled, 99.95%

铂, foil, 4mm disks, thickness 0.125mm, as rolled, 99.99+%

铂, foil, 0.05m coil, thickness 0.045mm, coil width .75mm, as rolled, 99.95%

铂, foil, light tested, 25x25mm, thickness 0.05mm, as rolled, 99.95%

铂, foil, 0.2m coil, thickness 0.045mm, coil width .75mm, as rolled, 99.95%

铂, foil, 0.2m coil, thickness 0.15mm, coil width .9mm, as rolled, 99.99%

铂, foil, 10mm disks, thickness 0.025mm, as rolled, 99.99+%

铂, foil, 15mm disks, thickness 0.1mm, as rolled, 99.99+%

铂, foil, light tested, 50x50mm, thickness 0.005mm, as rolled, 99.95%

铂, foil, not light tested, 50x50mm, thickness 0.01mm, as rolled, 99.95%