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Title:
DENTAL CHIP
Document Type and Number:
WIPO Patent Application WO/2006/117883
Kind Code:
A1
Abstract:
A dental treatment tool for extracting a tooth hard to clamp by means of forceps, e.g. an impacted tooth or a broken root of a tooth, effectively without clamping it while vibrating it and for cutting the tooth, collecting the cut tooth bone powder and scraping it out (moving). The dental chip (10) is coupled removably with a vibrator (1) and vibrated by the vibrator (1). The distal end side (10d) of the dental chip (10) has an arcuate cross-sectional shape perpendicular to the extension axis P of the chip, as shown in Fig. 3(B). The distal end portion (10d’) of the dental chip (10) is inserted between a tooth and the gum, arcuate opposite sides (10e, 10e) are applied to a tooth (50), the tooth (50) is loosened by applying vibration thereto, and then the tooth is extracted while hooking the distal end of the chip to the tooth. Alternately, the chip is used for cutting the tooth (50), collecting the cut bone powder and scraping out the collected bone powder.

Inventors:
NAKAGAWA MASAKI (JP)
SHOJI MASAKAZU (JP)
Application Number:
PCT/JP2005/010556
Publication Date:
November 09, 2006
Filing Date:
June 09, 2005
Export Citation:
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Assignee:
OSADA RES INST LTD (JP)
NAKAGAWA MASAKI (JP)
SHOJI MASAKAZU (JP)
International Classes:
A61C1/07; A61C3/03
Foreign References:
JPS336399B1
JP2003325551A2003-11-18
JPH09507775A1997-08-12
US20040023187A12004-02-05
JPS5092095U1975-08-02
JPH11113927A1999-04-27
JP2002508991A2002-03-26
JP2002253578A2002-09-10
JP2000515395A2000-11-21
Other References:
See also references of EP 1880689A4
Attorney, Agent or Firm:
Takano, Akichika (9th Floor Salute Bldg., 72, Yoshida-cho, Naka-k, Yokohama-shi Kanagawa 41, JP)
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