Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
  • A61C3/00—Dental tools or instruments
  • A61C3/02—Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
  • A61C13/00—Dental prostheses; Making same
  • A61C13/225—Fastening prostheses in the mouth
  • A61C13/30—Fastening of peg-teeth in the mouth
• • 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
  • A61C5/40—Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
  • A61C5/44—Means for controlling working depth, e.g. supports or boxes with depth-gauging means, stop positioners or files with adjustably-mounted handles

Definitions

• the present invention refers to a method for the making of endocanalar bores in odontoiatric implementations and to the relevant system for the making of bores for endocanalar posts.
• the glass fiber it is the most implemented material in the odontoiatric field for the re-construction of dental slumps, after being damaged by cavities or shocks. In theses cases, it is preferred the use of glass fiber alternatively to different dental alloys, since the former has a rigidity and bending modules such that to prevent braking of the root when stressed during the masticatory action. Further, the fiber is a inert and non toxic material, with respect to the alloys which are subjected to galvanic phenomena when contacting with other materials.
• the first group comprises posts having a cylindrical shape with constant diameter
• the second group comprises posts having a non constant diameter (i.e., a varying diameter). Both groups provide that a portion of the post is designed to be inserted inside the root of the tooth to be treated, whilst the remaining portion is designed to be projecting out from the tooth for supporting the per prosthesis.
• the cilindrical portion projecting out from the root and supporting the prosthesis is that having greater diameter (sometimes it has 5 times the inner portion diameter).
• polymerised composite materials in dental applications never show same mechanical properties of a polymerised glass fiber such that in industrial applications at 200 0 C.
• Aim of the present invention is to provide method for the making of endocanalar posts which solves the above described drawbacks of the state of the art, wherein the following steps are provided:
• Another aim of the present invention is to provide a system having a plurality of tools for the making of a endocanalar duct in a dental root and for the fixing of an endocanalar post within said duct, the system comprising:
• first milling means for milling said dental root and for the making of a endocanalar duct having a gauged diameter and concentricity within said root;
• the present invention provides a method and a system according to the annexed claims.
• Figures 1 to 3 schematically show three steps of the method for the making of endocanalar bores in a dental root according to the present invention
• Figure 4 shows a first component of the system of the present invention
• Figure 5 shows a second component of the system of the present invention
• Figure 6 shows a final stump
• Figure 7 schematically shows a step for the making of an endocanalar bore in a dental root according to the method of the present invention
• ⁇ - Figure 8 shows another step for the making of a endocanalar bore in a dental root, according to the method of the present invention
• Figure 9 shows a third component for the metering of the length of the endocanalar bore according to the system of the present invention.
• Figure 10 shows the component of the figure 9 in a operating condition
• Figure 11 shows a fourth component of the system of the present invention.
• the new system provides a gauged mill 1 , which thanks to its shape can realise a gauged bore 2 for what concerns diameters and concentricity in a dental root 3, therefore providing a perfect micrometrical coupling or mating between the base of a post and the outer base of said root 3 without the need of resin composites.
• the mill 1 has a gauged guide, which thanks to its shape and during the milling the same realises a plurality of seats which determine a stress distribution surfaces along the root axis, improving the mechanical behaviour of the assembly of the fiber post when inserted therein (better shown hereinafter).
• a fiber post in a pre-modelled series. Being such a final post made in a polymerised fiber at 200 0 C at factory standards, its dimensional and mechanical properties are guaranteed, therefore a perfect mating to the root it is also guaranteed.
• a first gauged mill 100 which determines the making of a bore or duct 2 with a steady constant diameter inside said root 3.
• the bore 2 will provide a guiding duct for the second mill 1 in the subsequent step (figure 2).
• a gauged mill 1 has and end thereof which realises a gauged guide 10, the latter allowing the guiding thereof in a precise and coaxial to the bore and during the whole milling operation.
• the mill 1 has a first cylindrical milling portion 11 and a second cup shaped milling portion 12.
• the overall shape of the mill 1 determines inside the root 3 a series of mating surfaces for the post. It is here necessary to draw the attention to the fact that said mating surfaces inside the root 3 will determine a series of surfaces for the distribution of the masticatory stresses along the root axis, obtaining an improved strengthening of the whole assembly of the post-root, and an improved coupling between post and root is achieved with a perfect parallelism and concentricity.
• the mill 1 can be used only after the typical milling " operation by means of said mill 100 (figure 1) where a duct or bore 2 inside said dental root 3 is achieved.
• a gauge 4 made of an extremely hard material, such as inox steel or similar.
• the gauge 4 has a first cylindrical body 40 elongated shaped and having an end surface 41 which is formed in a shape which is complementary to endocanalar bore 2 realised inside said tooth 3.
• a second cilindrical body 42 On the body 40 it is mounted in a sliding manner is a second cilindrical body 42, said body 42 having a mating end thereof for cooperating with said tooth 3 and being shaped in a complementary shape to said second cup shaped milling portion 12 of said mill 1 , therefore being also complementary to the shape of the relevant upper surface of said dental root 3.
• the body 40 has a series of parallel and equally spaced grooves 43 each of them representing a predetermined metric distance (for example, 1/10 millimetres, or similar).
• the end part 41 abuts up to the maximum length of the endocanalar bore 2 allowing the opposite portion of the body 40 to expose one or more grooves 43 out from the body 42, the number of grooves exposed corresponding to the length/depth of the endocanalar bore 2 metered.
• the user can easily read and note the value of the length of the endocanalar bore so metered from the number of grooves 43 exposed.
• FIG 11 it is shown another metering component according to the system of the present invention.
• the metering member 5 has a metering surface 50 where a series of grooves 51 are obtained, said grooves 51 being equally spaced and corresponding to the same metering of said series of grooves 43 onto said body 40 of said gauge 4.
• the gauge 4 when inserted inside the relevant endocanalar bore 2 of the dental root 3, the same will provide to the skilled man a metering member for the radiographic inspection for the coupling post-root.

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)
• Engineering & Computer Science (AREA)
• Biomedical Technology (AREA)
• Neurology (AREA)
• Neurosurgery (AREA)
• Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
• Surgery (AREA)
• Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=40276535

Family Applications (1)

Country Status (3)

Family Cites Families (6)

• 2006
  • 2006-09-19 IT IT000041A patent/ITPA20060041A1/it unknown
• 2007
  • 2007-09-19 EP EP07825140A patent/EP2083745A2/en not_active Withdrawn
  • 2007-09-19 WO PCT/IB2007/002716 patent/WO2008035180A2/en active Application Filing

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events