JPH0340620B2 - - Google Patents
Info
- Publication number
- JPH0340620B2 JPH0340620B2 JP15487986A JP15487986A JPH0340620B2 JP H0340620 B2 JPH0340620 B2 JP H0340620B2 JP 15487986 A JP15487986 A JP 15487986A JP 15487986 A JP15487986 A JP 15487986A JP H0340620 B2 JPH0340620 B2 JP H0340620B2
- Authority
- JP
- Japan
- Prior art keywords
- tooth
- teeth
- mold
- plaster
- dentition
- 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.)
- Expired
Links
- 230000003446 memory effect Effects 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 210000004513 dentition Anatomy 0.000 description 13
- 239000011505 plaster Substances 0.000 description 13
- 230000036346 tooth eruption Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000636 poly(norbornene) polymer Polymers 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004195 gingiva Anatomy 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
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
- A61C7/08—Mouthpiece-type retainers or positioners, e.g. for both the lower and upper arch
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)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は主として幼児期において乳歯から永久
歯に生え変つた時の歯列の矯正及び一般人の歯列
を整列させるために用いる歯列矯正具に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an orthodontic tool used primarily to correct the alignment of teeth when baby teeth change into permanent teeth in early childhood, and to align the teeth of ordinary people. .
乳歯から永久歯に生え変る時には、一度にこれ
が行われないため、どうしても永久歯の歯並びが
バラバラになつてしまう。
When baby teeth change to permanent teeth, this process is not done all at once, so the permanent teeth inevitably become misaligned.
そこで、従来にあつては、歯科医が極細の針金
を用いて各歯を連結し、強制的に歯列を矯正させ
ていた。しかし、この針金を用いる方法は、針金
を各歯に巻き付けると共にこれを全ての歯と連結
しなければならず、また、歯列が矯正される毎に
数箇月に一度、前記針金を締め付け直さなければ
ならなかつた。 Therefore, in the past, dentists used extremely thin wires to connect each tooth and forcibly correct the alignment of the teeth. However, with this wire method, it is necessary to wrap the wire around each tooth and connect it to all teeth, and the wire must be re-tightened once every few months each time the alignment of the teeth is corrected. It was impossible.
ところで、前記した歯列矯正方法にあつては、
針金を各歯に巻き付ける作業および巻き付けた針
金を隣接する歯に順次接続させる作業に非常な手
間が掛ると共に、数箇月に一度歯科医によつて締
め付けてもらわなければならないので、その通院
の煩わしさが問題となつた。
By the way, in the above-mentioned orthodontic method,
It takes a lot of time to wrap the wire around each tooth and connect the wrapped wire to the adjacent teeth one after another, and the dentist has to tighten the wire once every few months, which makes visits to the dentist inconvenient. became a problem.
又、針金は一度装着すると歯列が矯正されるま
での１〜２年間、それを外すことができないた
め、年頃の女性にとつては恥かしく評判の悪いも
のであつた。 Furthermore, once the wire is attached, it cannot be removed for one to two years until the teeth are straightened, so it is embarrassing and has a bad reputation for women of this age.
本発明は前述の問題点を解決した着脱容易で通
院の必要性の少ない歯列矯正具を提供するもの
で、その手段は、使用者本人の歯型および歯肉を
型取つて形成された歯の凹部を有し、かつ、この
歯の凹部は正常な歯列に並び変えられているも
の、あるいは正常な歯列を有する者の歯型および
歯肉を型取つて形成された歯の凹部を有する37℃
前後で形状記憶効果を発揮する形状記憶プラスチ
ツクス製の歯列矯正具によつてなされる。
The present invention provides an orthodontic appliance that solves the above-mentioned problems, is easy to put on and take off, and requires less hospital visits. A tooth with a recess, and the tooth recess has been rearranged into a normal dentition, or has a tooth recess formed by molding the teeth and gums of a person with a normal dentition37 ℃
This is done using orthodontic appliances made of shape-memory plastic that exhibits a shape-memory effect on the front and back.
前記歯列矯正具は、使用者本人の歯型より形成
されているものは使用者の歯型と一致していて、
装着時には自由に変形することから、歯への装着
が非常に簡単かつ容易に行え、共に装着後のこれ
が体温に近ずくにしたがつて矯正した歯並びに変
形することから違和感が少なく歯列矯正が行える
ものである。
The orthodontic appliance, which is formed from the user's own tooth pattern, matches the user's tooth pattern,
Because it deforms freely when worn, it is very easy to attach it to the teeth, and as it approaches body temperature, it deforms to the corrected tooth alignment, so there is little discomfort and it is possible to orthodontically correct the teeth. It can be done.
又、本人以外の正常の歯列を有する者の歯型よ
り形成されているものは製作が容易であり、多量
に生産することができる。 Moreover, those formed from the tooth mold of a person with normal dentition other than the person himself/herself are easy to manufacture and can be produced in large quantities.
以下、本発明に係る歯列矯正具の一実施例を第
１図〜第３図と共に説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the orthodontic appliance according to the present invention will be described below with reference to FIGS. 1 to 3.
１は形状記憶プラスチツクス（例えばポリノル
ボルネン）によつて作られた馬締形の歯列矯正具
本体にして、人体の口内温度である37℃前後で形
状記憶効果を示し、室温前後ではプラスチツクス
や合成ゴムと同程度の柔軟性を示し、自由に変形
し得るものである。そして、この本体１は上顎の
歯の表面から歯肉と上唇の内側との間に挿入され
る上側挿入部１１と、下顎の歯の表面から歯肉と
下唇の内側との間に挿入される下側挿入部１２、
上下の歯によつて咬合される咬合部１３および上
下の歯の裏側に位置する裏面部１４とより構成さ
れている。また、この咬合部１３の上下面には、
使用者の歯からとつた陰型の凹部１３ａが矯正さ
れた状態で形成されている。 1 is a horse-shaped orthodontic appliance body made of shape memory plastic (e.g. polynorbornene), which exhibits a shape memory effect at around 37 degrees Celsius, which is the human oral temperature, and which exhibits a shape memory effect at around room temperature. It exhibits flexibility comparable to that of rubber and synthetic rubber, and can be freely deformed. The main body 1 includes an upper insertion part 11 inserted from the tooth surface of the upper jaw between the gums and the inside of the upper lip, and a lower insertion part 11 inserted from the tooth surface of the lower jaw between the gum and the inside of the lower lip. side insertion part 12,
It is composed of an occlusal part 13 that is engaged by the upper and lower teeth, and a back surface part 14 that is located on the back side of the upper and lower teeth. Moreover, on the upper and lower surfaces of this occlusal part 13,
Negative recesses 13a from the user's teeth are formed in a corrected state.
而して、前記した歯列矯正具本体１を使用者が
口の中に入れ、上下の歯で咬合部１３を咬むと、
上下側入部１１，１２が歯と上唇および下唇との
間に挿入され、裏面部１４が上下の歯の裏側に密
着する。また、本体１を口内に入れた状態では、
該本体１は柔軟性を有しているので、現在の歯列
の状態で各歯に対応した咬合部１３の凹部１３ａ
に各歯は嵌入される。 Then, when the user puts the above-mentioned orthodontic appliance main body 1 into the mouth and bites the occlusal part 13 with the upper and lower teeth,
The upper and lower side entry parts 11 and 12 are inserted between the teeth and the upper and lower lips, and the back surface part 14 is brought into close contact with the back sides of the upper and lower teeth. In addition, when the main body 1 is placed in the mouth,
Since the main body 1 has flexibility, the recesses 13a of the occlusal part 13 corresponding to each tooth in the current state of the dentition
Each tooth is fitted.
この本体１を咬んだ状態において時間が経過
し、該本体１の温度が37℃に近づくと、該本体１
は形状記憶効果によつて、矯正された歯列の状態
に復帰しようとする。この時、咬合部１３の凹部
１３ａに嵌入された各歯は、夫々の凹部１３ａが
夫々の歯型と同じであることから、各凹部１３ａ
から容易に抜けることなく矯正された歯列の状態
に変位される。従つて、この状態を繰り返し行な
うことによつて、徐々に歯列は矯正されることと
なる。 When time passes while the body 1 is being bitten and the temperature of the body 1 approaches 37°C, the body 1
attempts to return to the corrected dentition state due to the shape memory effect. At this time, each tooth fitted into the recess 13a of the occlusal part 13 has the same shape as each recess 13a.
The dentition can be moved to a corrected dentition without easily falling out. Therefore, by repeating this condition, the alignment of the teeth will be gradually corrected.
次に、前記歯列矯正具本体１の製造方法を以下
に説明する。 Next, a method of manufacturing the orthodontic appliance main body 1 will be explained below.
先ず、患者（使用者）の歯型をワツクスによつ
て２個製作（上下の歯および歯肉を含む）し、そ
の内の１個の歯型を使用し、石膏によつて歯型模
型を製作する。一方、他のワツクスによる歯型か
ら歯の部分を除去しておく。そして、前記石膏に
よる歯型模型から歯根部分を含んで各歯を削り取
り、歯の部分を切除した前記ワツクスの歯型に正
常な歯列となるように歯肉の部分に石膏による歯
根部を埋め込み、再び歯型を製作する。 First, we make two dental impressions of the patient (user) using wax (including the upper and lower teeth and gums), and then use one of the dental impressions to make a dental model using plaster. do. Meanwhile, the tooth portion is removed from the other wax tooth mold. Then, each tooth, including the root part, is scraped off from the plaster tooth model, and the tooth root part made of plaster is embedded in the gingival part of the wax tooth mold from which the tooth part has been removed, so that a normal dentition is formed. Make the tooth mold again.
ここで、正常な歯列を有する者から型どつた歯
型については前記石膏歯の並べ変え手段は不要と
なる。 Here, for teeth molded from a person with normal dentition, the above-mentioned means for rearranging the plaster teeth is not necessary.
そして、この歯肉部がワツクス、歯部が石膏の
歯型を咬合器にセツトし、生理的安静位間隙であ
る上下前歯間の隙間３mmを、また大臼歯間の隙間
２mmを形成し、この状態で上下の歯全体および上
下の歯肉全体をバイトによつて覆う。次いで、こ
のバイトがある程度硬化した状態で、前記歯型を
咬合器ごと開放すると、バイトに正常な歯列の歯
の凹部と歯肉の凹部とが、バイトの上下面に形成
される。しかも、このバイトによる歯型は馬締形
状となつて、マウスピースの形状となつている。 Then, this tooth mold with wax for the gums and plaster for the teeth is set in an articulator, and a gap of 3 mm between the upper and lower front teeth, which is the physiological resting position gap, and a gap of 2 mm between the molars are formed. Cover the entire upper and lower teeth and upper and lower gums with the bite. Next, when the tooth mold is opened together with the articulator after this bit has hardened to some extent, recesses for the teeth of a normal dentition and recesses for the gums are formed on the upper and lower surfaces of the bite. Furthermore, the tooth pattern created by this bite has a horse-clamp shape, which is the shape of a mouthpiece.
次いで、このマウスピース全体に石膏分離剤を
塗布した後、型内に入れて石膏を充填する。この
際、マウスピースの唇側（表側）と舌側（裏側）
とで分離できるように型を成形しておく。そし
て、充填された石膏が硬化したら、この石膏を２
つに分離し、マウスピースを取り出す。これによ
り、２つに分離された石膏を合せると、マウスピ
ースの形状をした、すなわち、正常な歯列と歯肉
部とを有する歯型が残り、その回りは空間として
残る。 Next, after applying a gypsum separating agent to the entire mouthpiece, the mouthpiece is placed into a mold and filled with gypsum. At this time, the labial side (front side) and tongue side (back side) of the mouthpiece.
Shape the mold so that it can be separated. When the filled plaster hardens, this plaster is
Separate and remove the mouthpiece. As a result, when the two pieces of plaster are put together, a mouthpiece-shaped tooth mold with a normal dentition and gingiva remains, and a space remains around it.
次いで、この石膏の空間部に顆粒状あるいは鱗
片状のポリノルボルネン等の形状記憶合成樹脂の
粉末又は小片を充填、加熱すると共に分離した石
膏型を合せた状態で加熱器に入れ、数十分間150
℃で加熱する。この加熱後、石膏型を分離し、成
形された樹脂を取り出すと、第１図〜第３図に示
した歯列矯正具が得られる。そして、取り出した
歯列矯正具は石膏型の形状である正常な歯列を記
憶しており、37℃より低温であると、自由に変形
し得るが、37℃前後になると、正常な歯列となる
ものである。従つて、前記した如き歯列の矯正が
行えることとなる。 Next, powder or small pieces of shape memory synthetic resin such as polynorbornene in the form of granules or scales are filled into the spaces in this plaster and heated, and the separated plaster mold is placed in a heater for several minutes. 150
Heat at ℃. After this heating, the plaster mold is separated and the molded resin is taken out to obtain the orthodontic appliance shown in FIGS. 1 to 3. The removed orthodontic appliance remembers the normal dentition in the shape of a plaster mold, and can be freely deformed at temperatures below 37°C, but when the temperature is around 37°C, the normal dentition remains. This is the result. Therefore, the alignment of teeth as described above can be corrected.
尚、石膏型より取り出された歯列矯正具はバリ
等を取るために研磨が施される。 Note that the orthodontic tool taken out from the plaster mold is polished to remove burrs and the like.
本発明は前記したように、使用者の歯型および
歯肉を型取つたものであり、かつ、歯列は正常な
ものとなつている形状記憶プラスチツクス製のマ
ウスピース状のものであるから、これを利用して
歯列を矯正すると、歯への装着が初めは柔かいこ
とから簡単に行えると共に装着感が良好で、しか
も口内温度で37℃前後になると正常な歯列に変形
し使用者の歯を矯正することができる。また、着
脱が自由なことから使用者の希望する時間帯だけ
行えるので、従来のように常に装着したままによ
る問題も解消でき、かつ、歯列が正常になるまで
同一物を利用できることから、従来のように数箇
月毎の通院の必要もないものである。
As described above, the present invention is a mouthpiece-like mouthpiece made of shape memory plastic, which is made by taking a mold of the user's teeth and gums, and has a normal dentition. When using this to correct tooth alignment, it is easy to attach to the teeth because it is soft at first, and it feels good to wear.Moreover, when the oral temperature reaches around 37 degrees Celsius, it changes to normal teeth alignment, making it easy for the user to wear it. Teeth can be straightened. In addition, since it can be put on and taken off freely, it can be done only at the time the user desires, which eliminates the problem of keeping it on all the time. There is no need for hospital visits every few months as in the case of
第１図は本発明に係る歯列矯正具の一実施例を
示す正面図、第２図は同上の平面図、第３図は同
上の−線端面図である。
１……歯列矯正具本体、１３……歯の凹部。
FIG. 1 is a front view showing an embodiment of the orthodontic appliance according to the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is an end view taken along the line -1 of the same. 1... Orthodontic appliance main body, 13... Tooth recess.
Claims (1)
部を有し、かつ、この歯の凹部は正常な歯列から
なる37℃前後で形状記憶効果を発揮する形状記憶
プラスチツクス製の歯列矯正具。1 A tooth row made of shape memory plastic that has a tooth recess formed by taking a tooth mold and a mold of the gums, and this tooth recess is made of a normal tooth row and exhibits a shape memory effect at around 37 degrees Celsius. Corrective equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15487986A JPS6311148A (en) | 1986-07-01 | 1986-07-01 | Orthodontic tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15487986A JPS6311148A (en) | 1986-07-01 | 1986-07-01 | Orthodontic tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6311148A JPS6311148A (en) | 1988-01-18 |
| JPH0340620B2 true JPH0340620B2 (en) | 1991-06-19 |
Family
ID=15593941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15487986A Granted JPS6311148A (en) | 1986-07-01 | 1986-07-01 | Orthodontic tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6311148A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0671468B2 (en) * | 1990-03-02 | 1994-09-14 | 三菱重工業株式会社 | Denture and denture base |
| US6183248B1 (en) | 1998-11-30 | 2001-02-06 | Muhammad Chishti | System and method for releasing tooth positioning appliances |
| US7121825B2 (en) | 1998-11-30 | 2006-10-17 | Align Technology, Inc. | Tooth positioning appliances and systems |
| JP2003290250A (en) * | 2002-04-04 | 2003-10-14 | Gakushi Ito | Orthodontic mouthpiece and orthodontic apparatus using the same |
| US9261356B2 (en) | 2014-07-03 | 2016-02-16 | Align Technology, Inc. | Confocal surface topography measurement with fixed focal positions |
| US9439568B2 (en) | 2014-07-03 | 2016-09-13 | Align Technology, Inc. | Apparatus and method for measuring surface topography optically |
| US10772506B2 (en) | 2014-07-07 | 2020-09-15 | Align Technology, Inc. | Apparatus for dental confocal imaging |
| US9675430B2 (en) | 2014-08-15 | 2017-06-13 | Align Technology, Inc. | Confocal imaging apparatus with curved focal surface |
| US20180250099A1 (en) * | 2015-11-02 | 2018-09-06 | 3M Innovative Properties Company | Orthodontic appliance having continuous shape memory |
| US10456043B2 (en) | 2017-01-12 | 2019-10-29 | Align Technology, Inc. | Compact confocal dental scanning apparatus |
| US10835349B2 (en) | 2018-07-20 | 2020-11-17 | Align Technology, Inc. | Parametric blurring of colors for teeth in generated images |
-
1986
- 1986-07-01 JP JP15487986A patent/JPS6311148A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6311148A (en) | 1988-01-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |