| Project/Area Number |
61440079
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| Research Category |
Grant-in-Aid for General Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Conservative dentistry
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| Research Institution | Tokyo Medical and Dental University |
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Principal Investigator |
SUNADA Imao Dept. of Endodontics, Fac. of Dentistry, Tokyo Medical and Dental University, 歯学部, 教授 (50005013)
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| Co-Investigator(Kenkyū-buntansha) |
NAKAJIMA Mitsumasa Dept. of Endodontics, Fac. of Dentistry, Tokyo Medical and Dental University, 歯学部, 助手 (40198099)
ARAKI Kouji Dept. of Endodontics, Fac. of Dentistry, Tokyo Medical and Dental University, 歯学部, 助手 (70167998)
KOBAYASHI Chihiro Dept. of Endodontics, Fac. of Dentistry, Tokyo Medical and Dental University, 歯学部, 講師 (80126226)
青木 豊明 東京医科歯科大学, 歯学部, 助手 (90167792)
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| Project Period (FY) |
1986 – 1988
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| Project Status |
Completed (Fiscal Year 1988)
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| Budget Amount *help |
¥16,000,000 (Direct Cost: ¥16,000,000)
Fiscal Year 1988: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1987: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1986: ¥14,000,000 (Direct Cost: ¥14,000,000)
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| Keywords | Nd:YAG laser / Endodontics / Continuous wave laser / Pulp capping / Pulp amputation / 創傷治癒促進 / 根管拡大 / 象牙質浸透性 / 根尖病巣 / 歯髄 / 第2象牙質 |
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| Research Abstract |
The Applications of Nd:YAG laser for conservative dentistry were explored. The studies tried were as follows; 1. Temperature increase of lased tissue 1) Temperature change of lased bovine dentin (extracted teeth) 2) Temperature change of dog pulp chamber 3) basic studies on the temperature recording 2. Responses of the dental pulp irradiated with Nd:YAG laser 1) Irradiation to the occulusal surface (in rat molars) 2) Irradiation to the exposed dental pulp (in rat molars) 3) Irradiation to the cut dental pulp (in dog premolars) 4) Irradiation to the dentine cavity (in dog incisors) 3. Responses of the bone lased with Nd:YAG laser (in dog alveolar bone) 4. Effect on the permeability of dentine disc (Bovine dentine) 5. Laser irradiation to the root canal (extracted human teeth) As a result of these experiments, it is concluded that the irradiation condition and its control is very important to get the expected result.
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