BR9912283A - Equipamento e método para medir o nìvel de umidade no interior de esmalte, dentina ou tecidos dentários - Google Patents

Equipamento e método para medir o nìvel de umidade no interior de esmalte, dentina ou tecidos dentários

Info

Publication number
BR9912283A
BR9912283A BR9912283-9A BR9912283A BR9912283A BR 9912283 A BR9912283 A BR 9912283A BR 9912283 A BR9912283 A BR 9912283A BR 9912283 A BR9912283 A BR 9912283A
Authority
BR
Brazil
Prior art keywords
dental
dentin
measuring
equipment
probe
Prior art date
Application number
BR9912283-9A
Other languages
English (en)
Inventor
Neil Meridith
Original Assignee
Univ Bristol
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Bristol filed Critical Univ Bristol
Publication of BR9912283A publication Critical patent/BR9912283A/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/048—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance for determining moisture content of the material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0534—Measuring electrical impedance or conductance of a portion of the body for testing vitality of teeth

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

"EQUIPAMENTO E MéTODO PARA MEDIR O NìVEL DE UMIDADE NO INTERIOR DE ESMALTE, DENTINA OU TECIDOS DENTáRIOS". Uma sonda compreendendo dois eletrodos espaçados é provida entre os quais a resistência elétrica através de esmalte, dentina ou tecido dentário é medida. Os eletrodos compreendem eletrodos coaxiais interno e externo separados por uma camada isolante. O diâmetro da sonda é, de preferência, de 1mm. A ponta da sonda pode ser modelada para casar com a superfície sendo medida. O sinal da sonda é convertida de A para D para análise. A velocidade de mudança de resistência dá uma medida da velocidade de mudança de nível de umidade (porosidade). A porosidade está relacionada à sensibilidade dental e, assim, o sistema pode prover uma medição objetiva da sensibilidade dental.
BR9912283-9A 1998-07-20 1999-07-20 Equipamento e método para medir o nìvel de umidade no interior de esmalte, dentina ou tecidos dentários BR9912283A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9815777A GB2339912B (en) 1998-07-20 1998-07-20 Apparatus and method for measuring the moisture level within enamel dentine or tooth tissue
PCT/GB1999/002347 WO2000004825A1 (en) 1998-07-20 1999-07-20 Apparatus and method for measuring the moisture level within enamel dentine or tooth tissue

Publications (1)

Publication Number Publication Date
BR9912283A true BR9912283A (pt) 2001-04-17

Family

ID=10835836

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9912283-9A BR9912283A (pt) 1998-07-20 1999-07-20 Equipamento e método para medir o nìvel de umidade no interior de esmalte, dentina ou tecidos dentários

Country Status (9)

Country Link
US (1) US6424861B2 (pt)
EP (1) EP1098592A1 (pt)
JP (1) JP2002521080A (pt)
KR (1) KR20010071943A (pt)
AU (1) AU5053199A (pt)
BR (1) BR9912283A (pt)
CA (1) CA2338268A1 (pt)
GB (1) GB2339912B (pt)
WO (1) WO2000004825A1 (pt)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100457051B1 (ko) * 2002-02-27 2004-11-16 김철수 전기치수검사장치 및 그의 동작방법
KR100457050B1 (ko) * 2002-02-27 2004-11-16 김철수 치과용 전자기구 및 그의 동작방법
US7226978B2 (en) 2002-05-22 2007-06-05 Dexcom, Inc. Techniques to improve polyurethane membranes for implantable glucose sensors
WO2004028359A1 (ja) * 2002-09-24 2004-04-08 Kabushiki Kaisha Raifu 口腔内の水分測定方法及びその水分測定器並びにその水分測定器の口腔内挿入部交換カバー
CH696087A5 (de) * 2003-05-19 2006-12-15 Elpro Buchs Ag System und Verfahren zur Überprüfung eines Substrats auf Feuchtigkeitseinbrüche.
US20190357827A1 (en) 2003-08-01 2019-11-28 Dexcom, Inc. Analyte sensor
US20080119703A1 (en) 2006-10-04 2008-05-22 Mark Brister Analyte sensor
US8364231B2 (en) 2006-10-04 2013-01-29 Dexcom, Inc. Analyte sensor
US8423114B2 (en) 2006-10-04 2013-04-16 Dexcom, Inc. Dual electrode system for a continuous analyte sensor
US11633133B2 (en) 2003-12-05 2023-04-25 Dexcom, Inc. Dual electrode system for a continuous analyte sensor
EP2256493B1 (en) 2003-12-05 2014-02-26 DexCom, Inc. Calibration techniques for a continuous analyte sensor
US20100185071A1 (en) * 2003-12-05 2010-07-22 Dexcom, Inc. Dual electrode system for a continuous analyte sensor
JP2009505714A (ja) * 2005-09-02 2009-02-12 ザ プロクター アンド ギャンブル カンパニー 皮膚の湿分含量を示す方法及び機器
US20100069779A1 (en) * 2008-09-15 2010-03-18 Zvi Nachum Soft tissue moisture analyzer
US9801575B2 (en) 2011-04-15 2017-10-31 Dexcom, Inc. Advanced analyte sensor calibration and error detection
US20100237850A1 (en) * 2009-03-19 2010-09-23 Ahmed Abdullah Salem Al-Ghamdi Device and method for testing food quality
US8579630B2 (en) * 2009-08-12 2013-11-12 Ashish Kakar Apparatus and method for measuring dentin hypersensitivity
AU2010315040B2 (en) * 2009-11-06 2015-01-22 The Research Foundation Of State University Of New York Device and method for the detection of non-cavitated early dental caries lesions
FR2967341B1 (fr) * 2010-11-16 2021-05-21 Spineguard Systeme de determination de la qualite d'une structure osseuse d'un sujet et systeme de consolidation d'une structure osseuse d'un sujet comprenant un tel systeme de determination
GB201202387D0 (en) 2012-02-13 2012-03-28 Nachum Zvi Device for in-vivo determination of eye moisture
US9833519B2 (en) * 2012-09-25 2017-12-05 The United States Of America, As Represented By The Secretary, Department Of Health And Human Services Methods for the diagnosis and treatment of sjögren's syndrome
KR101509565B1 (ko) * 2013-05-24 2015-04-06 김인재 치아 스케일링 방법 및 장치
CN105769191B (zh) * 2014-12-25 2018-11-06 中国科学院深圳先进技术研究院 一种人体健康检测装置和方法
FR3046463A1 (fr) * 2015-12-30 2017-07-07 Dominique Lestelle Dispositif de mesure resistive de l'humidite d'un materiau mineral poreux, et application au monitoring hydrique des plantes
DE102017126496A1 (de) * 2017-11-10 2019-05-16 Philipps-Universität Marburg Vorrichtung und Verfahren zur Bestimmung der Impedanz an einem Zahn
KR20230020873A (ko) 2021-08-04 2023-02-13 한국전자기술연구원 계면 임피던스 측정 장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4164214A (en) * 1977-07-25 1979-08-14 The Regents Of The University Of California Method and apparatus for measuring the sensitivity of teeth
EP0332131A3 (en) * 1988-03-07 1989-12-13 Guy Levy dentin thickness monitor
DE9003076U1 (pt) * 1990-03-14 1991-04-11 Werner Eidam Medizintechnologie Gmbh, 6307 Linden, De
JPH04295751A (ja) * 1991-03-25 1992-10-20 Kyocera Corp 水分量測定方法
JPH0871092A (ja) * 1994-09-09 1996-03-19 Lion Corp 初期う蝕検出装置

Also Published As

Publication number Publication date
WO2000004825A1 (en) 2000-02-03
EP1098592A1 (en) 2001-05-16
US20010027275A1 (en) 2001-10-04
US6424861B2 (en) 2002-07-23
GB2339912B (en) 2002-06-05
AU5053199A (en) 2000-02-14
GB9815777D0 (en) 1998-09-16
GB2339912A (en) 2000-02-09
KR20010071943A (ko) 2001-07-31
CA2338268A1 (en) 2000-02-03
JP2002521080A (ja) 2002-07-16

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time