EP1871270A1 - Kits und verfahren zur anbringung eines dentalpfostens - Google Patents

Kits und verfahren zur anbringung eines dentalpfostens

Info

Publication number
EP1871270A1
EP1871270A1 EP06740080A EP06740080A EP1871270A1 EP 1871270 A1 EP1871270 A1 EP 1871270A1 EP 06740080 A EP06740080 A EP 06740080A EP 06740080 A EP06740080 A EP 06740080A EP 1871270 A1 EP1871270 A1 EP 1871270A1
Authority
EP
European Patent Office
Prior art keywords
kit
dental
components
dental post
sub
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP06740080A
Other languages
English (en)
French (fr)
Inventor
Dan Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ultradent Products Inc
Original Assignee
Ultradent Products Inc
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
Priority claimed from US11/097,512 external-priority patent/US7195485B2/en
Priority claimed from US11/097,631 external-priority patent/US7278852B2/en
Application filed by Ultradent Products Inc filed Critical Ultradent Products Inc
Publication of EP1871270A1 publication Critical patent/EP1871270A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00Filling or capping teeth
    • A61C5/50Implements for filling root canals; Methods or instruments for medication of tooth nerve channels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00Filling or capping teeth
    • A61C5/40Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
    • A61C5/42Files for root canals; Handgrips or guiding means therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00Filling or capping teeth
    • A61C5/40Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
    • A61C5/44Means 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 is in the field of endodontics and dental prosthetics. More particularly, the invention relates to kits and methods for installing a dental post as part of a procedure for attaching a crown or other dental prosthesis to a patient's tooth.
  • the dental practitioner When performing a root canal, the dental practitioner ⁇ e.g., endodontist) typically removes the pulp material forming the nerve of the tooth at issue, carefully prepares the canal that contained the nerve material and other pulp tissues, obturates or fills and seals the canal, and later inserts a dental post into the prepared root canal.
  • the dental post serves to provide support for the coronal aspect of the tooth and/or prosthetic device attached to the tooth.
  • the dental practitioner In determining which dental post to install, the dental practitioner considers the length, taper, and size required. In addition, the size of the drills used in preparing a post preparation depends on the size of the post to be placed. Once completed, the drills used to prepare the root canal for receipt of the dental post may be discarded or reused, typically after disinfecting ⁇ e.g., by chemical disinfectants or autoclaving).
  • kits and methods which would simplify the process of placing a dental post, particularly in selecting a correctly-sized post depending on the patient's need and matching up a properly-sized drill with a given dental post.
  • kits for use in placing a dental post in a prepared recess ⁇ e.g., a root canal) of a person's tooth.
  • Dental kits according to one aspect of the invention include one or more finishing drills and one or more permanent dental posts of corresponding size, and optionally, one or more dental post analogs and one or more starter drills.
  • Such kits are advantageously prepackaged within a container having an interior, means for suspending the kit components within the container (e.g., a foam material, molded plastic with through-holes, or other suspending, holding and/or organizing structure), and a tethered or removable lid.
  • kits include coding means for distinguishing the size of kit components from differently-sized components and matching similarly- sized components (e.g., an associated color, number, letter, or other unique visual marking), which provides a visual indication of the size (or other related aspects) of the kit components.
  • the unique visual marking may be placed on one or more of the kit container and kit components (i.e., drill(s), dental post(s), post analog(s), etc.)
  • kits of dental sub-kits are prepackaged within a tray having an interior recess configured to removably receive therein a plurality of individual dental sub-kits.
  • Each sub-kit of the inventive kit may have an associated color, number, letter, or other marking on one or more of the kit container and kit components to distinguish from at least one other sub-kit container and/or sub-kit components within the kit.
  • the color, number, letter or other visual marking associated with each sub-kit identifies the size of the components associated with the sub-kit.
  • Each sub-kit includes one or more finishing drills and one or more permanent dental posts.
  • Each sub-kit may optionally include one or more starter drills and/or one or more dental post analogs.
  • Each sub-kit is advantageously prepackaged within a container having an interior, means for suspending the sub-kit components within the container (e.g., a foam material, molded plastic with through-holes, or other suspending, holding and/or organizing structure), and a tethered or removable lid.
  • means for suspending the sub-kit components within the container e.g., a foam material, molded plastic with through-holes, or other suspending, holding and/or organizing structure
  • a tethered or removable lid ethered or removable lid.
  • finishing drill may include a metallic shaft having a proximal portion and a distal cutting portion, a smooth heat generating tip at the end of the distal portion, and a central abrasive portion between the proximal end and the distal end.
  • the finishing drill is configured to form a bore at least approximately corresponding to the size, shape, and length of a selected permanent dental post.
  • the finishing drill(s) within a given kit or sub-kit may advantageously correspond to the size of the permanent dental post(s) within the kit or sub-kit and may include visual coding means, as may other components within the kit.
  • Each permanent dental post included within each kit or sub-kit includes a distal insertion portion for insertion into a prepared recess of a tooth and a proximal portion extending beyond the distal insertion portion.
  • Permanent dental posts may be formed of any suitable material.
  • the permanent dental posts comprise a metal or fiber material ⁇ e.g., carbon or quartz fiber composite). They may advantageously include visual coding means, as may other components within the kit.
  • the dental kit (or sub-kits within a kit of sub-kits) may be disposable.
  • the components of the kit or sub-kit may be autoclavable so as to allow for cleaning and reuse.
  • Kits or sub-kits in which the individual components include visual coding means are particularly advantageous when it is desired to clean and reuse the components because it facilitates sorting of differently- sized components into kits of corresponding size.
  • the dental kits or sub-kits may be used for placing a dental post within a prepared recess of a tooth.
  • a dental practitioner selects a dental sub-kit from the plurality of sub-kits containing components of a desired size.
  • the dental practitioner uses a finishing drill of a desired size to prepare the recess of a tooth for insertion of a dental post.
  • the dental practitioner then inserts a permanent dental post of a size corresponding to the finishing drill kit into the prepared recess of a tooth.
  • a starter drill and/or a dental post analog may be used in preparation for placement of a permanent dental post.
  • the dental practitioner may use a starter drill from the kit or selected sub-kit to remove the coronal gutta-percha within the packed and sealed tooth recess to make an initial enlargement of the canal, while a dental post analog may be used as a try-in to verify or determine the correct size, girth, and length of permanent dental post to be used.
  • a core and dental prosthesis may be formed and fitted over the inserted permanent dental post.
  • the optional starter drill includes a shank and a cutting portion at the tip of the shank.
  • the optional dental post analog includes an analog post body with a distal insertion portion and a proximal portion extending beyond the distal insertion portion.
  • the distal insertion portion at least approximately corresponds to the size, shape, and length of a selected permanent dental post.
  • the dental post analog is configured for temporary insertion into a recess of a tooth (e.g., a prepared root canal).
  • Figure 1 is a perspective view of an exemplary kit of sub-kits for dental surgery
  • Figure 2 is a close up perspective view of a dental kit according to the invention (e.g., one of the sub-kits of Figure 1);
  • Figure 3 A is a perspective view of an exemplary finishing drill
  • Figure 3 B is a close up perspective view of the distal tip of the finishing drill of Figure 3 A
  • Figure 4 is a perspective view of an exemplary permanent dental post
  • Figure 5 is a perspective view of an exemplary starter drill
  • Figure 6 is a perspective view of an exemplary dental post analog
  • Figure 7 illustrates use of the starter drill of Figure 5 to remove coronal gutta- percha from a packed and sealed recess of a tooth prior to insertion of a dental post
  • Figure 8 illustrates use of the finishing drill of Figure 3A to remove gutta percha so as to prepare a recess of a tooth for insertion of a dental post;
  • Figures 9A-9B illustrate a method of using a dental post analog as a try-in for a permanent dental post
  • Figure 10 illustrates a completed dental restoration including a permanent dental post, a core, and a crown.
  • the present invention is directed to a dental kit, as well as a kit of dental sub- kits, for use in placing a dental post in a person's tooth.
  • Dental kits according to one aspect of the invention include one or more finishing drills and one or more permanent dental posts of corresponding size, and optionally, one or more dental post analogs and one or more starter drills.
  • the kit of sub-kits may include a tray having an interior recess configured to removably receive therein a plurality of individual dental kits (i.e., sub-kits within the overall kit).
  • Each kit or sub-kit includes a finishing drill and one or more permanent dental posts.
  • Each kit or sub-kit may optionally include a starter drill and/or a dental post analog.
  • each kit or sub-kit includes coding means for distinguishing the kit components from differently-sized components matching similarly-sized components (e.g., an associated color, number, letter, or other unique visual marking).
  • the unique visual marking may be placed on one or more of the kit or sub-kit container and kit or sub-kit components (i.e., drill(s), dental post(s), post analog(s), etc.) .
  • the inventive kits or sub-kits are advantageously prepackaged within a container having an interior, means for suspending the kit components within the container (e.g., a foam material, molded plastic with through-holes, or other suspending, holding and/or organizing structure), and a tethered or removable lid.
  • Figure 1 illustrates an exemplary kit 10 of sub-kits (e.g., 100a, 100b, 100c, and 10Od) for placing a dental post in a prepared recess of a person's tooth.
  • Kit 10 includes a tray 12 having an interior recess 14 configured to removeably receive a plurality of individual sub-kits (e.g., 100a, 100b, 100c, and 10Od).
  • Each sub-kit may include a unique visual marking (e.g., number 16, letter (not shown), or associated color, e.g., color stripe 18) so as to distinguish it from at least one other sub-kit within the kit.
  • the visual marking i.e., coding means for providing visual indication of the size of the kit components
  • each sub-kit identifies the size of components contained within the sub-kit.
  • a yellow sub-kit may contain components for use with relatively small root canals
  • red and blue sub-kits may contain components for use with intermediate size root canals
  • a green sub-kit may contain components for use with relatively large root canals.
  • numbers or letters of ascending or descending order may provide a visual indicator of the relative size of kit components among the various sub-kits.
  • kit or sub-kit 100 An exemplary dental kit or sub-kit 100 is illustrated in Figure 2.
  • the kit or sub-kit 100 illustrated in this example includes a finishing drill 102 and a plurality of permanent dental posts 104.
  • Kit or sub-kit 100 includes a container 101 having an interior, a foam material (not shown) for suspending and maintaining the contents of sub-kit 100 within container 101, and a removable Hd 105.
  • Illustrated kit or sub-kit 100 includes one finishing drill 102, three permanent dental posts 104, two optional starter drills 106, and an optional dental post analog 108. Although illustrated with specific numbers of the various components (e.g., one finishing drill, three permanent dental posts, two starter drills, and one dental post analog), any number of each may be provided, as desired.
  • the container 101 shown in Figure 2 further includes visual markings that help identify the size of the kit components.
  • size-identifier number 16 on the container 101 corresponds to the size of the kit components, as does color stripe 18.
  • the kit components include a corresponding numeric indicator and color striping. This is particularly advantageous in the case where it is desired to clean and reuse the kit components (e.g., by autoclaving). Because it may not be convenient to only autoclave similarly- sized kit components, but rather variously-sized components that have been used during a given time period, providing visual markings on the individual kit components facilitates later sorting and grouping of similarly-sized components when reconstructing the kit(s) for later use.
  • An Exemplary Finishing Drill Figures 3 A and 3B illustrate an exemplary finishing drill 102. Finishing drill
  • finishing drill 102 includes a metallic shaft 110 having a proximal portion 112 configured for attachment to a dental head piece, and a distal cutting portion 114. Finishing drill 102 also includes a smooth heat generating tip 116 (shown in close up in Figure 3B) at the end of distal portion 114 and a central abrasive portion 118 located between proximal portion 112 and distal cutting portion 114. In use, finishing drill 102 is configured to form a bore that at least approximately corresponds to the size, shape, and length of the permanent dental post(s) also included within same sub-kit 100.
  • the finishing drill 102 illustrated in Figure 3 A also includes visual markings corresponding to the size of the drill. These include numeric marking 134 and color stripes 135. It will be understood that any visual marking, or combination of visual markings, may be included to indicate size or other aspects that relate together components of the kit from which the drill is selected.
  • Figure 3B illustrates a close up perspective view of heat generating tip 116.
  • heat generating tip 116 and exemplary embodiments of finishing drills are disclosed in United States Patent Application Publication 2004/0081940.
  • Exemplary finishing drills are sold under the trade name GYROTIP by MTI Precision Products LLC, located in Lakewood, New Jersey.
  • FIG 4 illustrates an embodiment of an exemplary permanent dental post 104.
  • Permanent dental post 104 includes a distal insertion portion 120 for insertion into a prepared recess of a tooth (e.g., a root canal).
  • Permanent dental post 104 also includes a proximal portion 122 which extends beyond distal insertion portion 120.
  • the distal insertion portion 120 includes a tapered portion (beginning at 121) and a non-tapered parallel portion which extends up through proximal portion 122.
  • the permanent dental post 104 illustrated in Figure 4 also includes visual markings corresponding to the size of the post. These include numeric marking 134 and color stripes 135. It will be understood that any visual marking, or combination of visual markings, may be included to indicate size or other aspects that relate together components of the kit from which the dental post is selected.
  • Permanent dental posts included in the kits or sub-kits of the invention may comprise any suitable material.
  • permanent dental post 104 comprises a metal or fiber material (e.g., carbon or quartz fiber composite).
  • Exemplary permanent dental posts are sold by RTD, located in Grenoble, France.
  • An Exemplary Starter Drill Figure 5 illustrates an exemplary starter drill 106.
  • Exemplary starter drill 106 includes a metallic shaft 124 having a proximal portion 126 configured for attachment to a dental head piece, and a distal cutting portion 128, which may be bulbous, as illustrated. Starter drill 106 may be useful for removing coronal gutta-percha prior to use of finishing drill 102.
  • Exemplary starter drills e.g., Gates Glidden
  • the starter drill 106 illustrated in Figure 5 also includes visual markings corresponding to the size of the drill. These include numeric marking 134 and color stripes 135. It will be understood that any visual marking, or combination of visual markings, may be included to indicate size or other aspects that relate together components of the kit from which the drill is selected.
  • D. An Exemplary Dental Post Analog Figure 6 illustrates an exemplary dental post analog 108. Dental post analog
  • Post body 109 includes a distal insertion portion 129 and a proximal portion 130 extending beyond distal insertion portion 129.
  • the distal insertion portion 129 at least approximately corresponds in size, shape, and length to a permanent dental post (e.g., permanent dental post 104).
  • Distal insertion portion 129 is configured for temporary insertion into a prepared recess of a tooth.
  • Analog post body 109 also includes. at least one of means for determining the depth of placement of the distal insertion portion, means for gripping the post body, or means for tethering the post body.
  • the illustrated embodiment of dental post analog 108 includes markings 131 formed along distal insertion portion 129. Markings 131 are one example of means for determining the depth of placement of the distal insertion portion. Alternative examples of means for determining the depth of placement of the distal insertion portion include one or more circumferential grooves formed within the distal insertion portion or one or more circumferential ridges formed within the distal insertion portion.
  • Dental post analog 108 may include means for gripping analog post body 109.
  • the embodiment illustrated in Figure 6 includes a handle 132 formed near a proximal end of proximal portion 130 of post body 109.
  • Handle 132 is one example of means for gripping analog post body 109.
  • Dental post analog 108 may also include means for tethering post body 109.
  • the embodiment illustrated in Figure 6 includes a hole 133 formed through the proximal portion of handle 132.
  • a string or other flexible leash can be inserted into hole 133 for tethering post body 109 as a safety measure (e.g., to prevent inadvertent swallowing of or chocking on post body 109).
  • Hole 133 is one example of means for tethering post body 109.
  • Dental post analog 108 may include visual coding means for identifying the size of dental post analog 108.
  • Number 134 is one example of means for coding.
  • a letter (not shown) or other marking (e.g., stripes 135) may alternatively be used.
  • coding means for identifying the size or other unique aspect of dental post analog 108 may comprise forming at least a portion of post body 109 so as to be of a selected color, preferably the same color associated with the selected sub-kit (e.g., yellow may signify the smallest size, red and blue may signify or identify intermediate sizes, while green may signify a largest size).
  • the dental post analogs may be formed from any suitable material.
  • Exemplary materials include, but are not limited to, thermoplastic materials, thermoset materials, ceramics, or metals.
  • At least the distal insertion portion 129 of post body 109 may be formed of a material that is radiopaque. Such an embodiment allows a dental practitioner to see the location of a dental post analog while inserted into a prepared recess of a tooth by x-ray or other radiograph.
  • each dental kit or sub-kit including the finishing drill, any optional starter drills and/or dental post analogs, and even the permanent dental posts may be autoclavable, so as to allow for cleaning and reuse of the sub-kit components.
  • the sub-kit and its contents may be disposable. Providing the individual kit components with coding means, as opposed to merely coding the kit container, is particularly useful where it is desired to clean differently-sized components from various kits at the same time and then reconstruct one or more kits from the cleaned components.
  • Figure 7 illustrates a tooth 136 which has been broken down in preparation for fitting of a dental prosthesis (e.g., a crown).
  • a dental prosthesis e.g., a crown
  • Prepared tooth recess 138 e.g., a root canal
  • the tooth recess 138 has also been packed and sealed with packing material 140 (e.g., gutta-percha).
  • starter drill 106 may be used to remove the coronal gutta-percha or other packing material 140 down to the root canal orifice. Once the coronal gutta-percha has been removed, a finishing drill 102 may be used to remove additional packing material, while slightly widening the width of recess 138 down to a desired depth as illustrated in Figure 8. The removal of packing material 140, and slight widening and shaping of tooth recess 138 prepares recess 138 to receive a permanent dental post.
  • Use of starter drill 106 is optional, i.e., finishing drill 102 may be used to remove any needed packing material 140, without the use of starter drill 106.
  • one or more dental post analogs may optionally be used as a try-in for determining the size, girth, and length of a correctly sized permanent dental post.
  • a dental practitioner selects a dental post analog of a desired size, and as illustrated in Figure 9A, the dental post analog 108' is inserted into prepared tooth recess 138 of tooth 136 on a trial basis to determine whether inserted dental post analog 108' corresponds to a correctly sized permanent dental post.
  • Figure 9A illustrates insertion of a dental post analog 108' which is too narrow. The dental practitioner may continue to insert incrementally larger sized dental post analogs until the correctly sized post analog is identified.
  • Figure 9B illustrates insertion of a thicker dental post analog 108", which is correctly sized with respect to tooth recess 138.
  • Using one or more dental post analogs as try- ins aids the dental practitioner in determining which size of permanent dental post should be used.
  • Use of the dental post analogs allows the dental practitioner to do so inexpensively and conveniently.
  • the procedure can be performed without contaminating the permanent dental posts during a try-in procedure.
  • the dental post analog may either be discarded or autoclaved, as desired.
  • a dental prosthesis 144 (e.g., a crown) and supporting core 142 may then be formed, fitted, and bonded, cemented, or otherwise placed over inserted and bonded permanent dental post 104.
  • Methods for forming and placing a supporting core 142 and a dental prosthesis 144 will be known to those skilled in the art. Additional methods for forming and placing a core and dental prosthesis employing the dental post analogs optionally included in each sub-kit are disclosed in a U.S. Application Serial No. 11/094,991, filed March 31, 2005.

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)
EP06740080A 2005-04-01 2006-03-31 Kits und verfahren zur anbringung eines dentalpfostens Withdrawn EP1871270A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/097,512 US7195485B2 (en) 2005-04-01 2005-04-01 Kits for placement of a dental post
US11/097,631 US7278852B2 (en) 2005-04-01 2005-04-01 Kit of sub-kits for placing a dental post
PCT/US2006/011718 WO2006107714A1 (en) 2005-04-01 2006-03-31 Kits and methods for installing a dental post

Publications (1)

Publication Number Publication Date
EP1871270A1 true EP1871270A1 (de) 2008-01-02

Family

ID=37073787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06740080A Withdrawn EP1871270A1 (de) 2005-04-01 2006-03-31 Kits und verfahren zur anbringung eines dentalpfostens

Country Status (2)

Country Link
EP (1) EP1871270A1 (de)
WO (1) WO2006107714A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3119547A4 (de) * 2014-03-17 2017-10-25 Implant Direct Sybron International LLC Bohrungsbegrenzungssystem und verfahren damit
US10213273B2 (en) 2014-03-17 2019-02-26 Implant Direct Sybron International Llc Drill limit system and method of using same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5453010A (en) * 1994-03-11 1995-09-26 Dental Logics, Inc. Dental post with internal retention means
US5829590A (en) * 1996-05-08 1998-11-03 Klein; Philip B. Box for the storage and sterilization of plural dental posts and associated drill bits
US6186791B1 (en) * 1998-08-11 2001-02-13 Jeneric/Pentron Incorporated Fiber reinforced composite post
US6681925B2 (en) * 2001-12-19 2004-01-27 Ultradent Products, Inc. Autoclavable and resealable endo file container

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006107714A1 *

Also Published As

Publication number Publication date
WO2006107714A1 (en) 2006-10-12

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