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

GF58265488

Platinum, foil, not light tested, 50x50mm, thickness 0.004mm, as rolled, 99.95%

GF57762399

Platinum, foil, not light tested, 50x50mm, thickness 0.005mm, as rolled, 99.95%

GF72782231

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

GF13420257

Platinum, foil, 0.5m coil, thickness 0.025mm, coil width 5mm, as rolled, 99.95%

GF83172269

Platinum, foil, 0.05m coil, thickness 0.025mm, coil width .4mm, as rolled, 99.95%

GF60594442

Platinum, foil, 0.5m coil, thickness 0.025mm, coil width 8mm, as rolled, 99.95%

GF36280021

Platinum, foil, 0.2m coil, thickness 0.025mm, coil width .4mm, as rolled, 99.95%

GF41858309

Platinum, foil, 0.2m coil, thickness 0.05mm, coil width 1mm, as rolled, 99.99%

GF03272868

Platinum, foil, 4mm disks, thickness 0.125mm, as rolled, 99.95%

GF52150801

Platinum, foil, 0.5m coil, thickness 0.029mm, coil width .34mm, annealed, 99.99%

GF04529538

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

GF48496977

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

GF92036235

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

GF87686173

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

GF72566657

Platinum, foil, 0.1m coil, thickness 0.029mm, coil width .34mm, annealed, 99.99%

GF33460084

Platinum, foil, not light tested, 50x50mm, thickness 0.0025mm, as rolled, 99.95%

GF96238570

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

GF77270407

Platinum, foil, not light tested, 50x50mm, thickness 0.003mm, as rolled, 99.95%

GF49108619

Platinum, foil, not light tested, 50x50mm, thickness 0.0075mm, as rolled, 99.95%

GF00187163

Platinum, foil, 0.1m coil, thickness 0.15mm, coil width .9mm, as rolled, 99.99%

GF55534046

Platinum, foil, 0.05m coil, thickness 0.029mm, coil width .34mm, annealed, 99.99%

GF20699994

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

GF06396532

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

GF15087203

Platinum, foil, 0.1m coil, thickness 0.025mm, coil width 1.6mm, as rolled, 99.95%

GF88232542

Platinum, foil, 15mm disks, thickness 0.025mm, as rolled, 99.95%

GF40155533

Platinum, foil, light tested, 25x25mm, thickness 0.005mm, as rolled, 99.95%

GF25102897

Platinum, foil, 0.5m coil, thickness 0.045mm, coil width .75mm, as rolled, 99.95%

GF05432936

Platinum, foil, 0.05m coil, thickness 0.030mm, coil width .7mm, as rolled, 99.95%

GF87499906

Platinum, foil, 6mm disks, thickness 0.004mm, as rolled, 99.95%

GF99566410

Platinum, foil, 15mm disks, thickness 0.025mm, as rolled, 99.99+%