Abstract:
:The three-dimensional dynamic movement of the abutment tooth was successfully analyzed on a simulation model utilizing the mandibular kinesiography. When the unilateral free-end denture retained by the RPA, RPI or Aker's clasp was subjected to various directions of loads, the abutment tooth was inclined mainly by the sliding displacement of the denture over the alveolar ridge and the lever action around the denture. The Aker's clasp assembly induced the largest tooth movement. The RPA clasp generally exhibited similar tendencies to the Aker's clasp, showing a larger tooth inclination in the disto-buccal direction. The RPI clasp seemed to be preferable for protecting the periodontal tissues from damage associated with unfavorable tooth movements since it induced less distal tooth inclination.
journal_name
Dent Mater Jjournal_title
Dental materials journalauthors
Morikawa M,Masumi S,Kido H,Toyoda S,Kozono Ydoi
10.4012/dmj.8.56subject
Has Abstractpub_date
1989-06-01 00:00:00pages
56-64issue
1eissn
0287-4547issn
1881-1361journal_volume
8pub_type
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