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

ABSTRACT

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.

MATERIALS

Product Number

Brand

Product Description

GF66120533

Platinum, foil, not light tested, 25x25mm, thickness 0.002mm, as rolled, 99.95%

GF84938327

Platinum, foil, not light tested, 150x150mm, thickness 0.0075mm, as rolled, 99.95%

GF71917005

Platinum, foil, 0.1m coil, thickness 0.025mm, coil width 8mm, as rolled, 99.95%

GF13257222

Platinum, foil, 15mm disks, thickness 0.0125mm, as rolled, 99.95%

GF37181853

Platinum, foil, 0.2m coil, thickness 0.025mm, coil width .85mm, as rolled, 99.95%

GF28122757

Platinum, foil, 0.2m coil, thickness 0.025mm, coil width 8mm, as rolled, 99.95%

GF26562607

Platinum, foil, 6mm disks, thickness 0.05mm, as rolled, 99.95%

GF14986109

Platinum, foil, 25mm disks, thickness 0.0075mm, as rolled, 99.95%

GF31105864

Platinum, foil, 10mm disks, thickness 0.025mm, as rolled, 99.95%

GF58445433

Platinum, foil, 0.2m coil, thickness 0.125mm, coil width 2.5mm, as rolled, 99.99%

GF35123307

Platinum, foil, 0.5m coil, thickness 0.025mm, coil width 1.6mm, as rolled, 99.95%

GF97027443

Platinum, foil, 0.2m coil, thickness 0.025mm, coil width 1.2mm, as rolled, 99.95%

GF09108356

Platinum, foil, 6mm disks, thickness 0.125mm, as rolled, 99.95%

GF34340408

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

GF15077482

Platinum, foil, 4mm disks, thickness 0.005mm, as rolled, 99.95%

GF63134782

Platinum, foil, 10mm disks, thickness 0.05mm, as rolled, 99.95%

GF92049891

Platinum, foil, not light tested, 25x25mm, thickness 0.0025mm, as rolled, 99.95%

GF04267795

Platinum, foil, 0.5m coil, thickness 0.05mm, coil width 1mm, as rolled, 99.99%

GF05410303

Platinum, foil, not light tested, 25x25mm, thickness 0.0125mm, as rolled, 99.95%

GF36721762

Platinum, foil, not light tested, 100x100mm, thickness 0.0025mm, as rolled, 99.95%

GF00042590

Platinum, foil, 6mm disks, thickness 0.1mm, as rolled, 99.99+%

GF15051923

Platinum, foil, not light tested, 100x100mm, thickness 0.0075mm, as rolled, 99.95%

GF74415360

Platinum, foil, not light tested, 25x25mm, thickness 0.00125mm, as rolled, 99.95%

GF00548917

Platinum, foil, not light tested, 25x25mm, thickness 0.003mm, as rolled, 99.95%

GF34217276

Platinum, foil, 15mm disks, thickness 0.05mm, as rolled, 99.95%

GF14510359

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

GF37788452

Platinum, foil, not light tested, 25x25mm, thickness 0.01mm, as rolled, 99.95%

GF15199331

Platinum, foil, not light tested, 100x100mm, thickness 0.002mm, as rolled, 99.95%

GF56820157

Platinum, foil, 4mm disks, thickness 0.0125mm, as rolled, 99.95%

GF92107357

Platinum, foil, 0.2m coil, thickness 0.025mm, coil width 2mm, as rolled, 99.95%