Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
  • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
  • A61C1/08—Machine parts specially adapted for dentistry
  • A61C1/16—Protecting caps for hand-pieces or angle-pieces
• • 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
  • A61C5/80—Dental aids fixed to teeth during treatment, e.g. tooth clamps
  • A61C5/82—Dams; Holders or clamps therefor

Definitions

• the present invention relates to a protective device for dental use, and particularly to a device which can be used during the operations of removal of amalgam fillings, in order to prevent residues of these fillings to be scattered in the patient's mouth or in the dentist's surgery.
• a protective device formed of an elastomeric material sheet provided with a central hole wherein the tooth to be operated can be inserted up to the neck, has been also produced.
• This known device forms, once arranged in the patient's mouth, a barrier suitable for preventing the patient from swallowing filling residues.
• object of the present invention is providing a protective device which is free from said drawbacks, that is a device which is simple to use and effective in preventing the scattering of residues in the patient's mouth or elsewhere. Said object is achieved by means of a device the main features of which are specified in the first claim and other features are specified in the following claims.
• the protective device allows the tooth to be enclosed in a closed protected space well separated from the outside, so as to prevent completely the scattering of residues outside the envelope itself. Further, since it is elastic, transparent and relatively compact, the device does not significantly impede dental operations, particularly those for removing fillings, and can be even possibly used in combination with the known devices.
• Another advantage of the device according to the present invention consists in that it may be provided with suction ducts, possibly formed of the usual saliva ejector cannulae, in order to remove the residues captured inside it.
• a further advantage of the device according to the present invention consists in that it is simple and therefore economical to manufacture, so that it can be eliminated after the operation together with the content thereof and be replaced with a new device for a following operation, so that it is used only once.
• the first embodiment of the device according to the present invention comprises a closed envelope 1 made of a transparent or semitransparent elastomeric material, such as the rubber latex used for the manufacture of ordinary condoms.
• Said envelope is suitably provided with at least two holes 2, 3 in substantially opposite positions, which are surrounded by elastic borders preferably strengthened by an annular pad of the same material of envelope 1.
• the tooth 4, from which a filling 5 has to be removed, is introduced in the first hole 2, possibly with the help of a pair of retractors (not shown in the figure).
• a pair of wings 6 are connected to the edge of hole 2, so that they can be seized and pulled to widen the opening, thus allowing the passage through it of tooth 4 up to its neck.
• the seal between hole 2 and tooth 4 is guaranteed by the elasticity of the relevant border, but it can also be achieved by external means, such as the so called Ivory hooks.
• the body of a dental instrument for example a drill 7 provided with a bit 8 for removing filling 5.
• envelope 1 is suitably provided with a rigid or semirigid perimetrical structure 9, formed for example of a thin ring of plastic material, which is arranged between holes 2 and 3 so as to divide envelope 1 in two portions, each of which comprises one of said holes.
• a rigid or semirigid perimetrical structure 9 formed for example of a thin ring of plastic material, which is arranged between holes 2 and 3 so as to divide envelope 1 in two portions, each of which comprises one of said holes.
• the free ends of said ducts 10 are preferably provided with protective grids 11 and penetrate into envelope 1 through holes 12 extemporaneously made or already prepared and possibly strengthened with a thickened border.
• the same saliva ejector cannulae used in dentistry can be inserted into envelope 1 instead of ducts 10.
• the second embodiment of the device according to the present invention is different from the first one because it comprises only one sucking duct 13 which is connected through a fitting 14 to a rigid structure 15 having an annular shape which, differently from structure 9, is hollow and provided with a multiplicity of nozzles 16 positioned along the internal circumference for sucking the residues of filling 5.

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)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=11383099

Family Applications (1)

Country Status (3)

Cited By (3)

Citations (3)

• 1999
  • 1999-06-01 IT IT1999MI001232A patent/ITMI991232A1/it unknown
• 2000
  • 2000-05-29 WO PCT/IT2000/000220 patent/WO2000072774A2/en active Application Filing
  • 2000-05-29 AU AU51021/00A patent/AU5102100A/en not_active Abandoned

Patent Citations (3)

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