WO1995010988A1 - Method and apparatus for measuring tooth tightness - Google Patents
Method and apparatus for measuring tooth tightness Download PDFInfo
- Publication number
- WO1995010988A1 WO1995010988A1 PCT/US1994/011783 US9411783W WO9510988A1 WO 1995010988 A1 WO1995010988 A1 WO 1995010988A1 US 9411783 W US9411783 W US 9411783W WO 9510988 A1 WO9510988 A1 WO 9510988A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- strip
- measuring
- instrument according
- attaching
- teeth
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/04—Measuring instruments specially adapted for dentistry
Definitions
- the present invention relates to a method and also to an apparatus
- the invention for measuring the tightness between two contiguous bodies.
- appliances are placed in the mouth to maintain the accomplished result.
- the wearing time of the retentive appliances is successively reduced until
- recovery process is individual, and therefore if the recovery process is not
- US Patents 4,571 ,181 , and 4,664,627 describe mechanical type dental thickness gauges for measuring the spacing between teeth, but such mechanical gauges are relatively inaccurate and generally unsuitable for use
- An object of the present invention is to provide another method and
- the insertion element is forcibly inserted between the two teeth by attaching
- the insertion element is a
- strip of predetermined thickness preferably of stainless steel.
- the peak of the insertion force is preferably measured by one or
- strain gauges It is possible, however, to measure the peak insertion
- Orthod. Dentofac. Orthop. 97; 41-4, 1990 is based on the insertion of a
- the measurements are thus primarily a
- the present invention involves the forcible insertion of
- the invention also provides an instrument for measuring the
- Fig. 1 illustrates one form of measuring instrument constructed in
- Fig. 2 illustrates a set of the insertion elements or strips of different
- Fig. 3 illustrates typical results obtained when using three of the four
- Fig. 4 illustrates results produced when using a strip of single
- Fig. 5 is a typical strain curve
- Fig. 6 shows an embodiment of a device according to the present
- FIG. 1 there is illustrated one form of
- the instrument illustrated in Fig. 1 includes a holder, generally
- the measurement includes
- the insertion force increases as the insertion element is pushed downward
- Holder 2 includes a manually-graspable handle 10 mounting a U-
- frame 12 includes one or more strain gauges 16 which measures the strain
- the U-shaped frame 12 is constituted of a rod bent into a U-shape
- end extensions 18, 20 of the U-shaped frame serve as attaching elements
- the recording and/or displaying the measured insertion force Preferably, the
- measuring circuit 30 (which may be a Wheatstone Bridge) and the data
- acquisition system 32 are housed within the handle 10 for ease of use of
- the handle 10 ( Figure 6) preferably also includes a power supply 31 and preferably also a suitable display 33 for displaying the
- the one or more strain gauges 16 may be located outside of the one or more strain gauges 16
- handle 10 (as in Figure 1) or may alternatively be located within the
- strip 4a is of 0.05 mm
- strip 4b is of 0.10 mm
- strip 4c is of 0.15 mm
- strip 4d is of 0.20 mm.
- a strip 4 of suitable thickness is selected according to the particular case
- Handle 10 is attached to the ends 18, 20 of the U-shaped frame 12. Handle 10
- the 30 measures the insertion force, preferably including the peak insertion
- Fig. 3 illustrates the results of using the instrument illustrated in
- strip 4 was applied between the same two teeth, i.e., at the same single
- Curve A in Fig. 3 indicates the microstrain (in arbitrary tightness
- curve B indicates the results when the insertion
- Fig. 4 illustrates further typical results when a strip thickness of 0.15
- resistor-potentiometer system for measuring displacement.
- strips 4 to the instrument, e.g., arrangements for attaching blades to
- a single holder can hold a plurality of such
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94931874A EP0724413A4 (en) | 1993-10-19 | 1994-10-17 | Method and apparatus for measuring tooth tightness |
AU80799/94A AU8079994A (en) | 1993-10-19 | 1994-10-17 | Method and apparatus for measuring tooth tightness |
US08/624,553 US5752832A (en) | 1993-10-19 | 1994-10-17 | Method and apparatus for measuring tooth tightness |
JP7512135A JPH09509336A (en) | 1993-10-19 | 1994-10-17 | Method and measuring instrument for measuring tooth cohesion |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL107325A IL107325A (en) | 1993-10-19 | 1993-10-19 | Method and apparatus particularly useful for measuring tightness of teeth |
IL107325 | 1993-10-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995010988A1 true WO1995010988A1 (en) | 1995-04-27 |
Family
ID=11065356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1994/011783 WO1995010988A1 (en) | 1993-10-19 | 1994-10-17 | Method and apparatus for measuring tooth tightness |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0724413A4 (en) |
JP (1) | JPH09509336A (en) |
AU (1) | AU8079994A (en) |
IL (1) | IL107325A (en) |
WO (1) | WO1995010988A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT511383A1 (en) * | 2011-05-09 | 2012-11-15 | Univ Graz Tech | METHOD FOR THE QUALITATIVE COMPARISON OF APPROXIMAL CONTACT POINT STICKERS OF ADJUSTABLE TEETH |
CN107028676A (en) * | 2017-05-23 | 2017-08-11 | 福建医科大学附属口腔医院 | Tooth abuts measuring appliance and measuring method |
RU222607U1 (en) * | 2023-11-21 | 2024-01-11 | Общество с ограниченной ответственностью "ИСИ-ДЕНТАЛ" | DENTAL DEVICE FOR DETERMINING THE DENSITY OF INTERDENTAL PROXIMAL CONTACTS |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3297021A (en) * | 1964-04-22 | 1967-01-10 | Walter V Davis | Self-contained intra oral strain gauge |
US3839801A (en) * | 1972-06-09 | 1974-10-08 | Feather River Orthodontic Labo | Dentometer |
US3889382A (en) * | 1974-03-25 | 1975-06-17 | Paul R Husted | Micrometer tooth measuring apparatus |
US4959014A (en) * | 1989-05-30 | 1990-09-25 | Sheridan John J | Dental space measuring instrument |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4501159A (en) * | 1982-08-20 | 1985-02-26 | Mircea Arcan | Contact gauge and method of employing same |
US4841987A (en) * | 1987-07-02 | 1989-06-27 | Accudent, Inc. | Automatically resetting, force-sensing probe and related method of operation |
DE8911960U1 (en) * | 1989-10-04 | 1989-11-23 | Kotschy, Peter, Dr., Wien | Dental instrument for testing the contact conditions of teeth |
-
1993
- 1993-10-19 IL IL107325A patent/IL107325A/en not_active IP Right Cessation
-
1994
- 1994-10-17 WO PCT/US1994/011783 patent/WO1995010988A1/en not_active Application Discontinuation
- 1994-10-17 AU AU80799/94A patent/AU8079994A/en not_active Abandoned
- 1994-10-17 JP JP7512135A patent/JPH09509336A/en not_active Ceased
- 1994-10-17 EP EP94931874A patent/EP0724413A4/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3297021A (en) * | 1964-04-22 | 1967-01-10 | Walter V Davis | Self-contained intra oral strain gauge |
US3839801A (en) * | 1972-06-09 | 1974-10-08 | Feather River Orthodontic Labo | Dentometer |
US3889382A (en) * | 1974-03-25 | 1975-06-17 | Paul R Husted | Micrometer tooth measuring apparatus |
US4959014A (en) * | 1989-05-30 | 1990-09-25 | Sheridan John J | Dental space measuring instrument |
Non-Patent Citations (1)
Title |
---|
See also references of EP0724413A4 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT511383A1 (en) * | 2011-05-09 | 2012-11-15 | Univ Graz Tech | METHOD FOR THE QUALITATIVE COMPARISON OF APPROXIMAL CONTACT POINT STICKERS OF ADJUSTABLE TEETH |
AT511383B1 (en) * | 2011-05-09 | 2013-06-15 | Univ Graz Tech | METHOD FOR THE QUALITATIVE COMPARISON OF APPROXIMAL CONTACT POINT STICKERS OF ADJUSTABLE TEETH |
CN107028676A (en) * | 2017-05-23 | 2017-08-11 | 福建医科大学附属口腔医院 | Tooth abuts measuring appliance and measuring method |
CN107028676B (en) * | 2017-05-23 | 2023-04-25 | 福建医科大学附属口腔医院 | Tooth abutment measurer and measuring method |
RU222607U1 (en) * | 2023-11-21 | 2024-01-11 | Общество с ограниченной ответственностью "ИСИ-ДЕНТАЛ" | DENTAL DEVICE FOR DETERMINING THE DENSITY OF INTERDENTAL PROXIMAL CONTACTS |
Also Published As
Publication number | Publication date |
---|---|
JPH09509336A (en) | 1997-09-22 |
EP0724413A1 (en) | 1996-08-07 |
IL107325A0 (en) | 1994-01-25 |
IL107325A (en) | 1998-02-08 |
AU8079994A (en) | 1995-05-08 |
EP0724413A4 (en) | 1997-11-05 |
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