WO1994013222A1 - Dispositif de protection du milieu constitue par la cavite buccale au cours d'un traitement dentaire - Google Patents

Dispositif de protection du milieu constitue par la cavite buccale au cours d'un traitement dentaire Download PDF

Info

Publication number
WO1994013222A1
WO1994013222A1 PCT/NO1993/000187 NO9300187W WO9413222A1 WO 1994013222 A1 WO1994013222 A1 WO 1994013222A1 NO 9300187 W NO9300187 W NO 9300187W WO 9413222 A1 WO9413222 A1 WO 9413222A1
Authority
WO
WIPO (PCT)
Prior art keywords
environment
teeth
oral cavity
lower section
amalgam
Prior art date
Application number
PCT/NO1993/000187
Other languages
English (en)
Inventor
John Thorleif Nilsson
Bjørn BORCH
Original Assignee
John Thorleif Nilsson
Borch Bjorn
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 John Thorleif Nilsson, Borch Bjorn filed Critical John Thorleif Nilsson
Priority to AU57207/94A priority Critical patent/AU5720794A/en
Publication of WO1994013222A1 publication Critical patent/WO1994013222A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/90—Oral protectors for use during treatment, e.g. lip or mouth protectors

Definitions

  • Dental treatment in human beings involves the use of amalgam as filler for damaged or decayed teeth.
  • the carious part of the tooth is mechanically removed by drilling and/or scraping.
  • Amalgam is then used as a filler for the prepared cavity.
  • Amalgam is an alloy, one component of which is mercury.
  • mercury In a free state, mercury is a highly toxic substance, even in small doses. As a constituent of amalgam, mercury is not considered toxic. There is, however, some controversy as to whether free mercury is liberated from an amalgam filling. In view of this doubt, it is desirable to protect the patient and the dentist from any exposure hazard to free mercury in amalgam during dental treatment. This exposure is partly due to amalgam particles falling outside the tooth during drilling of old fillings for instance, and exposure is also expected through vapour and dust resulting from the use of high-speed drills. New amalgam used for fillings is also a hazard factor.
  • a number of methods are already in use to protect the patient and the dentist from contact with almagam during dental treatment.
  • One such method consists in placing a water-driven saliva ejector in the mouth in order to remove saliva and amalgam debris.
  • Such equipment is not entirely satisfactory as the amalgam debris can spread over the entire oral cavity, while the effectiveness of the ejector is limited to a space around its close vicinity. This implies that the saliva ejector must be placed close to the tooth being treated.
  • the water-driven saliva ejector is on the whole ineffective as to the extraction of possible mercury vapour, and will not prevent amalgam particles from coming into contact with the soft tissues of the oral cavity before being extracted or swallowed.
  • a number of dentists also use a further method which, at least, prevents direct contact between the amalgam and the oral cavity.
  • a piece of elastic, rubber-like cloth is pierced with a suitable orifice and pulled over the tooth. It is pressed down around the tooth in need of treatment and tightens around it. The cloth is then stretched out of the oral cavity and its edges attached to a frame outside the patient's mouth, and in such a manner as to allow the patient breathing space between the lips and the cloth.
  • the cloth takes on the shape of a funnel narrowing down on the tooth and thus acting as a shield around the tooth where fluid and amalgam particles are collected and can be extracted.
  • This method is more effective than the method mentioned above. Nevertheless, it complicates the situation around the point of work for the dentist. Moreover, the method does not take the extraction of mercury vapour into account.
  • the object of the present invention is to provide a comprehensive solution to all the above-mentioned problems. This implies the possibility to collect all amalgam debris resulting from the drilling of old fillings.
  • Saliva will no longer contaminate the place in need of treatment, and the water used for flushing under treatment will be completely extracted. The problem of contamination of most of the oral cavity by amalgam debris will be solved. Any possible mercury vapour will be collected and successfully extracted.
  • the invention will also prevent the dentist's mirror from being soiled. According to one embodiment of the invention, this is obtained with one upper section and one lower section sealed together with a tear-off strip. Further details of the invention will appear from the description which follows and from the drawings of one embodiment of the invention.
  • Figure 1 is a vertical cross section of the invention illustrating the adaptor piece which fits around the teeth, and the tear-off mechanism.
  • Figure 2 is a vertical cross section along a different axis of the invention.
  • Figure 3 is a horizontal cross section of the invention.
  • the inventive device resembles a bubble formed by an upper section 1 and a lower section 2. These two sections are held together by a tear-off strip 3 which can be removed to separate the two sections 1, 2.
  • the body formed by the upper section 1 and the lower section 2 is mainly oval in shape.
  • An instrument opening 4 with a stiffening frame 5 is provided in the upper section 1. Through the instrument opening 4, it is possible to reach inside the device 1,2 with a drill or other dental instrument.
  • the upper section 1 is provided with folds 6 to make it elastic and so that it can be somewhat stretched in relation to the lower section 2.
  • the lower section 2 has two openings, one oval dental opening 7 provided approximately in the horizontal plane, and one saliva ejector opening 8 positioned sideways in relation to the dental opening 7.
  • a retaining mechanism On the lower section 2, on the inside of the dental opening 7, a retaining mechanism is provided.
  • This consists of a frame 9 of hard plastic.
  • the frame's 9 mid-section, an adaptor piece 9' is shaped so as to fit tightly around a row of teeth.
  • the two parallel sides of the frame 9 are held together and operated by the pressure action of two end loops 9", 9'" , a front loop 9" and a back loop 9'".
  • the loops are obliquely placed in relation to the horizontal plane through the adaptor piece 9'.
  • the purpose of the loops 9" , 9'" is to create a spring effect on the adaptor piece 9' so that the latter adapts to various tooth widths and fits tightly around the teeth.
  • the bottom part of the lower section 2 ends into a cuff 10 which rests against the gum.
  • a stiff protrusion 11 is provided which can be taken hold of in order to press the device down on the teeth.
  • the invention is made of a transparent elastic material, such as silicone rubber.
  • the device is shaped to fit over a row of teeth on the lower right side of the mouth, from the innermost tooth up to and including the canine.
  • the device is slipped over the patient's teeth so that the teeth protrude inside the device through the dental opening 7.
  • the frame 9 tightens the device around the teeth and, in conjunction with the cuff 10, enables the device to fit tightly around the teeth and the gum.
  • the inventive device will thus constitute an enclosed work bubble around the teeth.
  • the regular vacuum saliva ejector found on any dental unit is then connected to the extractor orifice 8. Through this orifice, the water used to flush the point of work, amalgam debris and vapour will be entirely removed.
  • the dentist has access to the point of work with a drill or any other dental instrument.
  • the device is transparent and the mirror may be used on the outside to avoid soiling.
  • the folds 6 contribute to good freedom of movement for working inside the device.
  • the dentist can separate the upper section 1 from the lower section 2 by tearing off the tear-off strip 3.
  • the lower section 2 will remain like a frame around the teeth and will protect the teeth from getting moist with saliva.
  • the lower section 2 is removed by being pulled off from the teeth.
  • the described embodiment of the invention is designed to fit the lower right row of teeth.
  • the same embodiment can also be used for the upper left row of teeth.
  • Another embodiment is needed for the lower left and the upper right rows of teeth, and a third embodiment to fit over the incisors. This implies that three different embodiments will cover all requirements for dental treatment.
  • the device can be pressed down onto the teeth and the gum in a more secure way when the patient bites together. When biting together, the upper jaw will press downwards onto the inner loop 9'". Should the device loosen during treatment, the patient may be asked to bite together to help press it down again.
  • the present invention is ergonomically more adequate for the dentist, as fewer instruments are needed in the oral cavity during treatment, compared with the work situation of a dentist today.
  • the invention also contributes to a better environment and less pollution in the dental surgery. The patients are no longer exposed to the hazard of swallowing amalgam debris which later will become hazardous waste in the sewer system.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (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)
  • Dental Preparations (AREA)

Abstract

Une bulle est constituée d'une partie supérieure (1) et d'une partie inférieure (2) maintenues ensemble à l'aide d'une bande (3) se détachant par arrachement. La partie supérieure (1) comporte une ouverture pour les instruments (4) et des replis (6). La partie inférieure (2) comporte une ouverture pour la dentition (7), pourvue d'un cadre (9), et un orifice d'extraction (8).
PCT/NO1993/000187 1992-12-10 1993-12-10 Dispositif de protection du milieu constitue par la cavite buccale au cours d'un traitement dentaire WO1994013222A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU57207/94A AU5720794A (en) 1992-12-10 1993-12-10 Device for the improvement of the environment in the oral cavity during dental treatment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO924767A NO178093C (no) 1992-12-10 1992-12-10 Anordning for bedring av miljö i munnhulen ved tannbehandling
NO924767 1992-12-10

Publications (1)

Publication Number Publication Date
WO1994013222A1 true WO1994013222A1 (fr) 1994-06-23

Family

ID=19895666

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1993/000187 WO1994013222A1 (fr) 1992-12-10 1993-12-10 Dispositif de protection du milieu constitue par la cavite buccale au cours d'un traitement dentaire

Country Status (3)

Country Link
AU (1) AU5720794A (fr)
NO (1) NO178093C (fr)
WO (1) WO1994013222A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0728458A1 (fr) * 1995-02-17 1996-08-28 ROEKO GmbH + Co. Dentalerzeugnisse Compositions et matériau pour digues de caoutchouc, leur utilisation et leur fabrication
WO2003013382A1 (fr) * 2001-07-16 2003-02-20 Decon As Dispositif destine a isoler une dent pendant un traitement dentaire
ITPG20080044A1 (it) * 2008-08-29 2010-02-28 Rashin Alipanah Barriera aerosol dentale -rm5

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0137090A1 (fr) * 1983-10-13 1985-04-17 Giuseppe Totaro Dispositif de protection de la cavité buccale lors des opérations dentaires
US4917603A (en) * 1989-01-30 1990-04-17 Haack August F Dental isolation system
WO1992012686A1 (fr) * 1991-01-23 1992-08-06 Agdur, Bertil Dispositif d'extraction s'utilisant en traitement dentaire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0137090A1 (fr) * 1983-10-13 1985-04-17 Giuseppe Totaro Dispositif de protection de la cavité buccale lors des opérations dentaires
US4917603A (en) * 1989-01-30 1990-04-17 Haack August F Dental isolation system
WO1992012686A1 (fr) * 1991-01-23 1992-08-06 Agdur, Bertil Dispositif d'extraction s'utilisant en traitement dentaire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0728458A1 (fr) * 1995-02-17 1996-08-28 ROEKO GmbH + Co. Dentalerzeugnisse Compositions et matériau pour digues de caoutchouc, leur utilisation et leur fabrication
WO2003013382A1 (fr) * 2001-07-16 2003-02-20 Decon As Dispositif destine a isoler une dent pendant un traitement dentaire
ITPG20080044A1 (it) * 2008-08-29 2010-02-28 Rashin Alipanah Barriera aerosol dentale -rm5

Also Published As

Publication number Publication date
NO178093C (no) 1996-01-24
NO924767D0 (no) 1992-12-10
NO924767L (no) 1994-06-13
AU5720794A (en) 1994-07-04
NO178093B (no) 1995-10-16

Similar Documents

Publication Publication Date Title
US3772790A (en) Tooth isolating shield
US5516286A (en) Dental isolation tray particularly suited for use when applying dental sealants and method for its use
US4259067A (en) Combined saliva ejector, tongue retractor and throat protector
US3924333A (en) Dental appliance
US5551872A (en) Dental impression device
US2937445A (en) Dental appliance
US6267591B1 (en) Dental prop, throat dam and retractor
Fusayama Total etch technique and cavity isolation
JPH025937A (ja) 歯科用具
US5466153A (en) Prop for use in dentistry and oral surgery
US20060292522A1 (en) Splatter shield for dental cleaning instrument
CA2733175A1 (fr) Bloc d'isolation dentaire
US8303305B2 (en) Tongue retractor and fluid/particle barrier
US4024642A (en) Dental appliance
US20100291503A1 (en) Tongue block
Reuter The isolation of teeth and the protection of the patient during endodontic treatment.
US4544357A (en) Throat guard apparatus
WO1994013222A1 (fr) Dispositif de protection du milieu constitue par la cavite buccale au cours d'un traitement dentaire
JPH06504465A (ja) 歯科治療に使用する摘出装置
Behuria Isolation of Teeth in Children: A Review.
Liebenberg Secondary retention of rubber dam: Effective moisture control and access considerations.
EP0026992B1 (fr) Dispositif d'évacuation orale
JPH07275204A (ja) 歯科治療用開口器
WO2003013382A1 (fr) Dispositif destine a isoler une dent pendant un traitement dentaire
CN212630940U (zh) 一种易于操作的口腔医疗护理棒

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BR CA FI JP KP KR PL RU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA