Occlusal Facets and Contacts in Normal Dentition

Nakao, Katsuhiko

doi:10.2186/jjps.14.1

Cited by 12 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A variety of methods have been used to measure occlusal contact, such as occlusal strips or silk, threedimensional (3D) occlusal examination (14) or examinations using articulating paper, the Dental Prescale system (5)(6)(7), and the Black Silicone-image analysing device system (15). Examinations with the Dental Prescale system or Black Silicone-image analysing device system and 3D occlusal examinations can quantitatively measure the occlusal contact area, but the Dental Prescale system and Black Silicone-image analysing device system cannot measure the near contact area.…”

mentioning

confidence: 99%

Association between near occlusal contact areas and mixing ability

Horie

Kanazawa

Komagamine

et al. 2014

J of Oral Rehabilitation

View full text Add to dashboard Cite

This study investigated the relationship between occlusal contact and near contact areas defined by clenching intensity using electromyograms (EMGs) and mixing ability assessed with colour-changeable chewing gum. Participants comprised 44 dentate adults (24 men, 20 women) with a mean age of 28·2 ± 6·8 years. Silicone material was used to measure the occlusal contact and near contact areas (the area of each type of tooth, the total area of the first molar and second molar, the second premolar to the second molar and the first premolar to the second molar) defined by clenching intensity at 10% maximum voluntary contraction (MVC). Colour-changeable chewing gum was used to assess mixing ability. A colorimeter was used to measure colour changes, and the calculated colour difference (ΔE) was used as a measure of mixing ability. Correlation analysis of ΔE and occlusal contact and near contact areas revealed a significant positive correlation of 0·47 at 0-160 μm thicknesses of the silicone registration material of the second molar (P < 0·01). The near contact area with a thickness up to 200 μm was correlated with mixing ability, with the correlation strengthening as the interocclusal distance increased up to 160 μm. Notably, occlusal contact and near contact areas of the second molar were strongly correlated with mixing ability in dentate adults.

show abstract

mentioning

confidence: 99%

Association between near occlusal contact areas and mixing ability

Horie

Kanazawa

Komagamine

et al. 2014

J of Oral Rehabilitation

View full text Add to dashboard Cite

show abstract

“…Using ARCUS Digma, the jaw position and movements at the intercuspal position and during lateral border movements were measured. Simultaneously, the bite records of the subject at the intercuspal position and position during each lateral border movement were taken using checking-fit materials (BLUE SILICONE, GC, Tokyo, Japan: BS) 26) . These were subsequently scanned by an occlusal analysis device (BITEEYE BE-1, GC: BE-1).…”

Section: Methodsmentioning

confidence: 99%

Evaluation of the measurement precision and accuracy in the dental CAD/CAM system

et al. 2020

View full text Add to dashboard Cite

The purpose of this study is to investigate the precision and trueness of the occlusal contact record obtained with a dental CAD/ CAM device (ARCTICA). Sandblasted spherical steel balls with diameters of 10-20 mm were measured using ARCTICA and a three-dimensional measurement device (FN503). The radius of each steel ball was calculated from the measured value and the difference between the measured and nominal values was obtained. Upper/lower dental arch casts were measured and processed for occlusal contact image creation using both devices. The graphical images of the occlusal contacts at the intercuspal position obtained from both systems and an occlusal analysis device (BE-1) were compared with the occlusal contact area. Excellent correlation was observed between the measurement results of ARCTICA and FN503 (p<0.001, R 2 : 0.99). The occlusal contact areas were 186.0 mm 2 (ARCTICA), 192.8 mm 2 (FN503), and 196.1 mm 2 (BE-1). This study showed that ARCTICA is capable of conducting highly accurate measurements and generating a graphical image of occlusal contacts with good reliability.

show abstract

“…Nakao [96,97] studied the occlusal contact area during lateral excursion using a silicone impression material. In these reports, the maximum contact area on the occlusal facets was observed at the maximum intercuspal position, and the contact area gradually decreased according to the range of lateral excursion.…”

Section: Transition Of the Occlusal Contact Area During Jaw Movementmentioning

confidence: 99%