1994 Fiscal Year Final Research Report Summary
Postoperative oral function of oral cancer patients reconstructed with free tissue transfer
| Project/Area Number |
04454512
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
外科・放射線系歯学
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| Research Institution | Showa University |
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Principal Investigator |
OHNO Kohsuke Showa Univ.Dentistry, Associate Professor, 歯学部, 助教授 (30112725)
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| Co-Investigator(Kenkyū-buntansha) |
IMAI Satoko Showa Univ.Dentistry, Assistant, 歯学部, 助手 (60260907)
YAMASHITA Yukari Showa Univ.Dentistry, Assistant, 歯学部, 助手 (50260906)
WAKUMOTO Masahiko Showa Univ.Dentistry, Assistant, 歯学部, 助手 (60220852)
MATSUI Yoshiro Showa Univ.Dentistry, Assistant, 歯学部, 助手 (10181687)
MICHIWAKI Yukihiro Showa Univ.Dentistry, Assistant Professor, 歯学部, 講師 (40157540)
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| Project Period (FY) |
1992 – 1994
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| Keywords | free tissue transfer / reconstruction / postoperative oral function / speech function / mastication / deglutition |
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| Research Abstract |
The Purpose of this study was to assess the postoperative mastication and dyglution of oral cancer patients reconstructed with free radial forearm flap using objective assessment and interview, and the effects of using a speech aid appliance on speech and velopharyngeal function were studied in oral cancer ratients in whom free flaps were used to repair defects of the soft palate and lateral wall of the oropharynx.
1. Mastication and doglation :
Forty-three normal individuals and twenty-seven patients served as subjects. Reconstructed patients were categorized into three groups : in the first group, the tongue and floor of the mouth were resected ; in the second group, the soft palate and lateral wall of the oropharynx were resected ; and in the third group, the mandible was resected. Subjective asessment was carried out by interview. Objective assessment was carried out by three defferent methods : the spectrophtometric examination of mastication using ATP particle, the swallowing examination of swallowing using 30ml water, and the oral feeding examination of ingestion using jelly, grule and cracker.
The results indicated that : (1) in mastication, the functional recovery was obtained by Group 2, Group 3, and Group 1 in that order ; (2) in deglutition and lngestion, it obtained by Group 3, Group 2, and Group 1 in that order. The findings seem to indicate that composite assessment methods (interview and objective examination) are needed in assessment of postoperative oral function.
2. Speech function :
The results indicated that prosthodontic treatment using a speech aid appliance was effective in improving velopharyngeal function and speech intelligibility in patients in whom defects of the soft palate and lateral wall of the oropharynx were reconstructed with free flaps.
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