WO2018122862A1 - Space maintainer - Google Patents

Space maintainer Download PDF

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Publication number
WO2018122862A1
WO2018122862A1 PCT/IN2017/050166 IN2017050166W WO2018122862A1 WO 2018122862 A1 WO2018122862 A1 WO 2018122862A1 IN 2017050166 W IN2017050166 W IN 2017050166W WO 2018122862 A1 WO2018122862 A1 WO 2018122862A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire
space
space maintainer
tooth
notch
Prior art date
Application number
PCT/IN2017/050166
Other languages
French (fr)
Inventor
Monisha SINGHAL
Stephen Chain
Original Assignee
Singhal Monisha
Stephen Chain
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 Singhal Monisha, Stephen Chain filed Critical Singhal Monisha
Publication of WO2018122862A1 publication Critical patent/WO2018122862A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/20—Arch wires
    • A61C7/22—Tension adjusting means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor

Definitions

  • the present disclosure relates to dental appliances and in particular to space maintainers.
  • BACKGROUND [002] Premature loss of primary teeth or deciduous teeth is a natural occurrence, which may result from dental caries, infection, trauma, or accident in children in early age, and could lead to the need for orthodontic treatment later on in life. Loss of a deciduous tooth creates an opportunity for adjacent tooth to shift towards the space created by lost tooth. The space created by the loss of deciduous or primary teeth/teeth may disrupt the space required for eruption of succedaneous teeth by reducing the arch length leading to the problems like crowding, rotation, or impactions of permanent teeth, etc.
  • the conventional space maintainer requires minimum of two sittings for implant delivery and requires impression making which may be difficult in case of young children and those with several gag reflex. Additionally, it involves a lot of fabrication laboratory work and time consuming soldering process. Displacement of the band while pouring of the cast and solder breakage may be the most common causes of failure of said technique.
  • a space maintainer in accordance with an embodiment of the present disclosure, includes a molar tube fitted on a molar tooth having a passage, a bracket fitted on a tooth in close proximity to the molar tooth; and a wire passing through the passage and the bracket such that the wire includes at least one notch .
  • the at least one notch is positioned between the molar tube and the bracket.
  • a space maintainer in accordance with an embodiment of the present disclosure, includes a plurality of brackets fitted on respective tooth wherein the teeth are in close proximity to each other. Each bracket includes a passage. Further, the space maintainer includes a wire passing through the passage of the brackets and has at least one notch such that the notch is positioned between the plurality of brackets.
  • FIG. 1 Exemplary embodiments of the appliance according to the invention are described in detail by way of the following Figures.
  • the appliance shown in the Figs, and correspondingly described is a dental appliance.
  • Figs. Of the Figs. :
  • FIG. 1 shows an enlarged view of a first structure of an orthodontic space maintainer in accordance with an embodiment of the present disclosu re.
  • Figs. 2, 3, 4, 5, and 6 illustrate an enlarged view of different structures of the orthodontic space maintainer in accordance with different embodiments of the present disclosure.
  • FIG. 7 illustrates an enlarged view of the first structure of the space maintainer mounted on a mandibular arch in accordance with an embodiment of the present disclosure.
  • the present invention discloses an orthodontic appliance and more particularly an orthodontic appliance capable of maintaining space loss created by premature loss of deciduous teeth, which is easy to construct and operate.
  • the appliance can be delivered to the patient easily in just one sitting.
  • the appliance is used for maintaining required space created between teeth in order to prevent crowding and rotation of permanent dentition and possible impaction of succedaneous bicuspid.
  • the appliance is an intra-oral appliance used to hold open the empty space left by a lost tooth.
  • Fig. 1 illustrates a first structure of an orthodontic space maintainer 100 used to retain space between two teeth.
  • the space maintainer 100 includes a wire 7, plural notches 9 and 11, a molar tube 13, and a bracket 17.
  • the space maintainer 100 described in the present embodiment may be a fixed type passive appliance.
  • the molar tube 13 is made of a metal such as steel, nickel, chromium etc. and is designed to be placed on the molar tooth. It acts as a cap on the molar tooth.
  • the molar tube 13 has a passage to facilitate passing of wire 7.
  • the function of the molar tube 13 is to facilitate easy a nd painless passage of the wire 7 from the molar tooth to the desired tooth .
  • Bracket 17 made of stainless steel etc. is designed to be placed on a tooth other than a molar tooth.
  • the bracket 17 is mounted on such teeth with the help of composite resin.
  • the bracket 17 provides support to the other end of the wire 7.
  • the wire 7 is designed such that it includes at least one notch towards at least one end.
  • the notches may be in the form of v-bends or circular loops.
  • the wire may include two notches 9 and 11 spaced apart by a finite distance. As shown, notch 9 is constructed adjacent to a molar tube 13 while the other notch 11 is provided adjacent to a bracket 17.
  • the two notches 9 and 11 are provided to facilitate restriction of forward and backward movement of the wire 7 and to consolidate the arch. Angulation of the notches is customized based upon the shape of a tooth on which the appliance is to be fitted . Further, the length of the wire 7 is customized depending upon the space between the teeth on which the appliance is mounted.
  • Fig. 2 illustrates another form of an orthodontic space maintainer, in which the notches 9 and 11 are illustrated to be loop-shaped.
  • the orthodontic space maintainer may also possess notches of shapes like, without limitation, angu lar v-shaped notches (as shown in Fig. 3) or a single notch in the form of a wedge (as shown in Fig. 4).
  • the plurality of notches 9 and 11 are provided in the orthodontic space maintainer 100 in order to prevent drifting (shifting) of two teeth into the space created by loss of a primary tooth to maintain the required space for eruption of a succedaneous tooth.
  • Fig. 5 shows another embodiment of the orthodontic space maintainer 100 in which each tooth has a bracket.
  • the bracket 17 replaces the molar tube 13 as the space maintainer is required between two teeth none of which is a molar tooth.
  • the orthodontic space maintainer 100 of Fig. 6 has brackets 17 mounted on respective teeth with a wire 7 that passes through the brackets 17. In this depiction, the wire 7 possesses two notches 9 and 11 in the form of U-shaped notches.
  • Fig. 7 illustrates a structure of a mandibular arch of teeth.
  • the figure shows an orthodontic space maintainer 100 mounted on a molar tooth 3 and engaging a premolar or bicuspid 5 in the mandibular arch 1.
  • a molar tube 13 is fitted on the molar tooth 3 in the first step.
  • the molar tube acts as a capping on the molar tooth.
  • the bracket 17 is placed on a first premolar or bicuspid tooth 5.
  • the two notches 9 and 11 are constructed in the wire 7 with the help of a plier.
  • the wire 7 is made to pass through the molar tube and is fixed on the bracket 17.
  • the wire is ligated on the bracket 17 with the help of a ligature wire.
  • the free ends of the wire are bent gingivally to prevent impingement or further trauma to the patient.
  • the construction and design of the space maintainer assembly in the present embodiment does not require heating and soldering of joints thereby reducing risk of solder breakage, which is a major problem for failure and less longevity of these appliances.
  • the orthodontic appliance developed in the present invention does not involve impression making and a lot of laboratory work which makes its construction a very facile process.
  • the appliance does not require much armamentarium can easily be delivered to a child without causing severe pain in a single sitting.
  • the description above contains many specificities, these should not be construed as limitations on the scope of the invention but as merely providing illustrations of some of the presently preferred embodiments of this invention. As discussed, many variations are possible.
  • the shape of the notches can be altered to yet other forms as long as it serves the function of holding the brackets and/or molar tube.
  • the scope of the present invention should not be limited to the specific examples of the foregoing description, but rather is indicated by the appended claims and their legal equivalents.

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)

Abstract

A space maintainer is disclosed. The space maintainer of the present invention is an easy to install appliance and can be planted in one go. The space maintainer includes one or more brackets, a wire having plurality of notches and optionally, a molar tube. The bracket(s) and/or molar tube are fitted on respective tooth and have a passage for passing the wire. The notches in the wire ensure that the appliance is kept in place and is not dislocated.

Description

SPACE MAINTAINER
FIELD OF THE INVENTION
[001] The present disclosure relates to dental appliances and in particular to space maintainers. BACKGROUND [002] Premature loss of primary teeth or deciduous teeth is a natural occurrence, which may result from dental caries, infection, trauma, or accident in children in early age, and could lead to the need for orthodontic treatment later on in life. Loss of a deciduous tooth creates an opportunity for adjacent tooth to shift towards the space created by lost tooth. The space created by the loss of deciduous or primary teeth/teeth may disrupt the space required for eruption of succedaneous teeth by reducing the arch length leading to the problems like crowding, rotation, or impactions of permanent teeth, etc.
[003] One of the most valuable services a dentist can render to his patients is the prevention of space created by premature loss of deciduous or primary teeth. The space rendered by loss of deciduous teeth can be prevented by the provision of a space maintainer. The conventional space maintainer as "band and loop" type, "crown and loop" type, etc. have mostly been used for the premature loss of single, unilateral, or bilateral maxillary or mandibular primary molars, etc. These types of space maintainers adjust space to accommodate changing dentition. However, various problems may arise while using such implants.
[004] The conventional space maintainer requires minimum of two sittings for implant delivery and requires impression making which may be difficult in case of young children and those with several gag reflex. Additionally, it involves a lot of fabrication laboratory work and time consuming soldering process. Displacement of the band while pouring of the cast and solder breakage may be the most common causes of failure of said technique.
SUMMARY [005] In accordance with an embodiment of the present disclosure, a space maintainer is disclosed. The space maintainer includes a molar tube fitted on a molar tooth having a passage, a bracket fitted on a tooth in close proximity to the molar tooth; and a wire passing through the passage and the bracket such that the wire includes at least one notch . The at least one notch is positioned between the molar tube and the bracket.
[006] In accordance with an embodiment of the present disclosure, a space maintainer is disclosed. The space maintainer includes a plurality of brackets fitted on respective tooth wherein the teeth are in close proximity to each other. Each bracket includes a passage. Further, the space maintainer includes a wire passing through the passage of the brackets and has at least one notch such that the notch is positioned between the plurality of brackets.
BRIEF DESCRIPTION OF THE DRAWINGS
[007] Exemplary embodiments of the appliance according to the invention are described in detail by way of the following Figures. The appliance shown in the Figs, and correspondingly described is a dental appliance. Of the Figs. :
[008] Fig. 1 shows an enlarged view of a first structure of an orthodontic space maintainer in accordance with an embodiment of the present disclosu re.
[009] Figs. 2, 3, 4, 5, and 6 illustrate an enlarged view of different structures of the orthodontic space maintainer in accordance with different embodiments of the present disclosure.
[0010] Fig. 7 illustrates an enlarged view of the first structure of the space maintainer mounted on a mandibular arch in accordance with an embodiment of the present disclosure.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0011] The present invention discloses an orthodontic appliance and more particularly an orthodontic appliance capable of maintaining space loss created by premature loss of deciduous teeth, which is easy to construct and operate. In other words, the appliance can be delivered to the patient easily in just one sitting. The appliance is used for maintaining required space created between teeth in order to prevent crowding and rotation of permanent dentition and possible impaction of succedaneous bicuspid. The appliance is an intra-oral appliance used to hold open the empty space left by a lost tooth.
[0012] Referring specifically to the drawings, Fig. 1 illustrates a first structure of an orthodontic space maintainer 100 used to retain space between two teeth. The space maintainer 100 includes a wire 7, plural notches 9 and 11, a molar tube 13, and a bracket 17. The space maintainer 100 described in the present embodiment may be a fixed type passive appliance.
[0013] The molar tube 13 is made of a metal such as steel, nickel, chromium etc. and is designed to be placed on the molar tooth. It acts as a cap on the molar tooth. The molar tube 13 has a passage to facilitate passing of wire 7. The function of the molar tube 13 is to facilitate easy a nd painless passage of the wire 7 from the molar tooth to the desired tooth .
[0014] Bracket 17 made of stainless steel etc. is designed to be placed on a tooth other than a molar tooth. The bracket 17 is mounted on such teeth with the help of composite resin. The bracket 17 provides support to the other end of the wire 7. [0015] The wire 7 is designed such that it includes at least one notch towards at least one end. The notches may be in the form of v-bends or circular loops. For example, in one adaptation, the wire may include two notches 9 and 11 spaced apart by a finite distance. As shown, notch 9 is constructed adjacent to a molar tube 13 while the other notch 11 is provided adjacent to a bracket 17. The two notches 9 and 11 are provided to facilitate restriction of forward and backward movement of the wire 7 and to consolidate the arch. Angulation of the notches is customized based upon the shape of a tooth on which the appliance is to be fitted . Further, the length of the wire 7 is customized depending upon the space between the teeth on which the appliance is mounted.
[0016] Fig. 2 illustrates another form of an orthodontic space maintainer, in which the notches 9 and 11 are illustrated to be loop-shaped. However, the orthodontic space maintainer may also possess notches of shapes like, without limitation, angu lar v-shaped notches (as shown in Fig. 3) or a single notch in the form of a wedge (as shown in Fig. 4).
[0017] The plurality of notches 9 and 11 are provided in the orthodontic space maintainer 100 in order to prevent drifting (shifting) of two teeth into the space created by loss of a primary tooth to maintain the required space for eruption of a succedaneous tooth.
[0018] Fig. 5 shows another embodiment of the orthodontic space maintainer 100 in which each tooth has a bracket. In the present embodiment, the bracket 17 replaces the molar tube 13 as the space maintainer is required between two teeth none of which is a molar tooth. [0019] The orthodontic space maintainer 100 of Fig. 6 has brackets 17 mounted on respective teeth with a wire 7 that passes through the brackets 17. In this depiction, the wire 7 possesses two notches 9 and 11 in the form of U-shaped notches.
[0020] Fig. 7 illustrates a structure of a mandibular arch of teeth. The figure shows an orthodontic space maintainer 100 mounted on a molar tooth 3 and engaging a premolar or bicuspid 5 in the mandibular arch 1.
[0021] In an embodiment, a molar tube 13 is fitted on the molar tooth 3 in the first step. The molar tube acts as a capping on the molar tooth. In the next step, the bracket 17 is placed on a first premolar or bicuspid tooth 5. The two notches 9 and 11 are constructed in the wire 7 with the help of a plier. Lastly, the wire 7 is made to pass through the molar tube and is fixed on the bracket 17. The wire is ligated on the bracket 17 with the help of a ligature wire. In an embodiment, the free ends of the wire are bent gingivally to prevent impingement or further trauma to the patient.
[0022] The construction and design of the space maintainer assembly in the present embodiment does not require heating and soldering of joints thereby reducing risk of solder breakage, which is a major problem for failure and less longevity of these appliances.
[0023] The orthodontic appliance developed in the present invention does not involve impression making and a lot of laboratory work which makes its construction a very facile process. The appliance does not require much armamentarium can easily be delivered to a child without causing severe pain in a single sitting. [0024] While the description above contains many specificities, these should not be construed as limitations on the scope of the invention but as merely providing illustrations of some of the presently preferred embodiments of this invention. As discussed, many variations are possible. For example, the shape of the notches can be altered to yet other forms as long as it serves the function of holding the brackets and/or molar tube. Thus, the scope of the present invention should not be limited to the specific examples of the foregoing description, but rather is indicated by the appended claims and their legal equivalents.

Claims

I CLAIM:
1. A space maintainer comprising: a molar tube fitted on a molar tooth having a passage; a bracket fitted on a tooth in close proximity to the molar tooth; and a wire passing through the passage and the bracket, the wire including at least one notch such that the at least one notch is positioned between the molar tube and the bracket.
2. The space maintainer as claimed in claim 1 wherein the at least one notch is one of a v- band, a circular loop, or a wedge.
3. The space maintainer as claimed in claim 1 wherein an angle of formation of the at least one notch is dependent on the shape of the tooth.
4. The space maintainer as claimed in claim 1 wherein ends of the wire are curved.
5. The space maintainer as claimed in claim 1 wherein the wire is made of stainless steel.
6. A space maintainer comprising: a plurality of brackets fitted on respective tooth wherein the teeth are in close proximity to each other, each bracket including a passage; and a wire passing through the passage of the brackets, the wire including at least one notch such that the notch is positioned between the plurality of brackets.
7. The space maintainer as claimed in claim 6 wherein the at least one notch is one of a v- band, a circular loop, or a wedge.
8. The space maintainer as claimed in claim 6 wherein an angle of formation of the at least one notch is dependent on the shape of the tooth.
9. The space maintainer as claimed in claim 6 wherein ends of the wire are curved.
10. The space maintainer as claimed in claim 6 wherein the wire is made of stainless steel.
PCT/IN2017/050166 2016-12-28 2017-05-08 Space maintainer WO2018122862A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201611044737 2016-12-28
IN201611044737 2016-12-28

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10828133B2 (en) 2016-12-02 2020-11-10 Swift Health Systems Inc. Indirect orthodontic bonding systems and methods for bracket placement
US10881489B2 (en) 2017-01-31 2021-01-05 Swift Health Systems Inc. Hybrid orthodontic archwires
US11058520B2 (en) 2012-10-30 2021-07-13 University Of Southern California Orthodontic appliance with snap fitted, non-sliding archwire
US11058517B2 (en) 2017-04-21 2021-07-13 Swift Health Systems Inc. Indirect bonding trays, non-sliding orthodontic appliances, and registration systems for use thereof
US11612458B1 (en) 2017-03-31 2023-03-28 Swift Health Systems Inc. Method of tongue preconditioning in preparation for lingual orthodontic treatment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070134612A1 (en) * 2005-12-09 2007-06-14 Bernard Contencin Dento-facial orthopedic treatment and orthodontic arch wire for implementing the same
WO2011017379A1 (en) * 2009-08-05 2011-02-10 Six Month Smiles Inc. Orthodontic bracket system and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070134612A1 (en) * 2005-12-09 2007-06-14 Bernard Contencin Dento-facial orthopedic treatment and orthodontic arch wire for implementing the same
WO2011017379A1 (en) * 2009-08-05 2011-02-10 Six Month Smiles Inc. Orthodontic bracket system and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Bilateral Space Maintainer", ICE HEALTH SYSTEMS, 26 July 2012 (2012-07-26), youtube, XP054978799, Retrieved from the Internet <URL:https://www.youtube.com/watch?v=oCse2Pu7w7Y> *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11058520B2 (en) 2012-10-30 2021-07-13 University Of Southern California Orthodontic appliance with snap fitted, non-sliding archwire
US11129696B2 (en) 2012-10-30 2021-09-28 University Of Southern California Orthodontic appliance with snap fitted, non-sliding archwire
US11510758B2 (en) 2012-10-30 2022-11-29 University Of Southern California Orthodontic appliance with snap fitted, non-sliding archwire
US11510757B2 (en) 2012-10-30 2022-11-29 University Of Southern California Orthodontic appliance with snap fitted, non-sliding archwire
US11517405B2 (en) 2012-10-30 2022-12-06 University Of Southern California Orthodontic appliance with snap fitted, non-sliding archwire
US10828133B2 (en) 2016-12-02 2020-11-10 Swift Health Systems Inc. Indirect orthodontic bonding systems and methods for bracket placement
US11612459B2 (en) 2016-12-02 2023-03-28 Swift Health Systems Inc. Indirect orthodontic bonding systems and methods for bracket placement
US11911971B2 (en) 2016-12-02 2024-02-27 Swift Health Systems Inc. Indirect orthodontic bonding systems and methods for bracket placement
US10881489B2 (en) 2017-01-31 2021-01-05 Swift Health Systems Inc. Hybrid orthodontic archwires
US11957536B2 (en) 2017-01-31 2024-04-16 Swift Health Systems Inc. Hybrid orthodontic archwires
US11612458B1 (en) 2017-03-31 2023-03-28 Swift Health Systems Inc. Method of tongue preconditioning in preparation for lingual orthodontic treatment
US11058517B2 (en) 2017-04-21 2021-07-13 Swift Health Systems Inc. Indirect bonding trays, non-sliding orthodontic appliances, and registration systems for use thereof

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