Comparison of the Arcon and the Condylar type articulators on the reproduction of lateral movements : Part III. Articulator adjustment for the lateral movements

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概要

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• It is supposed that on the reproduction of lateral movements, the articulator settings of the Condylar type articulator is different from the condylar pathways of the human jaw. The Arcon type articulator shows the same values as the human jaw. It is not clear, however, about the differences of the articulator settings between the Arcon and the Condylar type articulator. In the present study, the angular differences on each adjustable mechanism are analyzed by reproducing the same lateral movement on the Arcon type articulator; which has all guiding systems on the upper member, and the Condylar type articulator; which has all guiding systems on the lower member. The lateral movement is reproduced on the Arcon type using the mandibular movement cubic model three-dimensionally. The lateral movement of the Condylar type is reproduced by calculating the intercuspal position of the Arcon type relative to the lateral occulusal position of the Arcon type. The differences of the articulator settings between both articulators are calculated and compared. The results are as follows; The angular differences of the articulator settings between the Condylar and the Arcon type articulator are not the same on each adjustable mechanism. The maximal difference of the non-working side condylar guidance is about 4° on the horizontal projective angle and 1° on the sagittal projective angle, while the maximal difference of the working side condylar guidance is about 2° on the horizontal and frontal projective angle. In addition, the changing of the sagittal projective angle on the non-working side condylar guidance affects the articulator settings of the Condylar type articulator. It is necessary to consider the angular differences from the condylar pathways of the human jaw, when evaluating the lateral movement by the Condylar type articulator.

• 日本顎口腔機能学会の論文
• 2005-10-30

著者

• MIURA Hiroyuki

  Fixed Prosthodontics, Department of Restorative Science, Graduate School, Tokyo Medical and Dental U

• Miura Hiroyuki

  Fixed Prosthodontics Department Of Restorative Sciences Division Of Oral Health Sciences Graduate Sc

• Miura Hiroyuki

  Fixed Prosthodontics Department Of Restorative Science Graduate School Tokyo Medical And Dental Univ

• Hara Shinichi

  Dental Office Mitsubishi Electric Corporation

• Otake Takehiro

  Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate

• Tsuruta Jun

  Educational Development Section, Department of Health Science Politics, Graduate School, Tokyo Medic

• Arai Izumi

  Division of Electronic Engineering, Institute for Medical and Dental Engineering, Tokyo Medical and

• Mayanagi Akihiro

  Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate

• Hasegawa Shigeo

  Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate

• Mayanagi Akihiro

  Fixed Prosthodontics Department Of Restorative Sciences Division Of Oral Health Sciences Graduate Sc

• Hasegawa Shigeo

  Dental Office Mitsubishi Electric Corporation

• Arai Izumi

  Division Of Electronic Engineering Institute For Medical And Dental Engineering Tokyo Medical And De

• Tsuruta Jun

  Educational Development Section Department Of Health Science Politics Graduate School Tokyo Medical

• Otake Takehiro

  Fixed Prosthodontics Department Of Restorative Sciences Division Of Oral Health Sciences Graduate Sc

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