【０００１】[0001]
【産業上の利用分野】本発明は、歯科において使用され
る個人トレイ及びこの個人トレイを使用した印象採得方
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal tray used in dentistry and an impression taking method using the personal tray.
【０００２】[0002]
【従来の技術】顎の印象採得時、印象材を盛って顎に均
等に適合させ、印象材が変形せず正しく硬化するまでそ
の位置を保持し、印象材硬化後変形しないよう口腔外へ
取り出す歯科用トレイは公知である（例えば実公平２−
２５３７３号公報）。2. Description of the Related Art When taking an impression of a chin, the impression material is piled up and evenly fitted to the chin, and the position is maintained until the impression material is properly hardened without being deformed. Dental trays to be taken out are known (for example, in fact
No. 25373).
【０００３】かかる歯科用トレイは、金属，レジン等で
形成され、個人の顎の大きさ、形状に合わせて、適当な
大きさのものが使用されるが、さらに正確な印象を採得
するためには、個人の顎に適合させて調整したトレイを
使用する必要がある。これを個人トレイと呼び、通常床
用レジン、即時重合レジン、トレイコンパウンドなどで
作られる。従来、この種個人トレイを開示したものとし
て、例えば特開平１−２２３９５３号がある。Such a dental tray is made of metal, resin or the like, and an appropriate size is used according to the size and shape of an individual's jaw, but in order to obtain a more accurate impression. Must use trays that are tailored to fit the individual's chin. This is called a personal tray, and is usually made of floor resin, instant polymerization resin, tray compound, etc. Japanese Patent Laid-Open No. 1-223953 discloses a personal tray of this type.
【０００４】[0004]
【発明が解決しようとする課題】上述の如き個人トレイ
を使用して上下顎の印象を採得する場合、これと同時に
所定の咬合挙上を行うことはできない。咬合挙上は、別
途バイトワックスを使用して行う必要がある。しかしな
がら従来のバイトワックスを使用して咬合挙上を行う場
合、咬合圧の強弱により、その間隔が変わるため、所定
の挙上値を得るには歯科医であっても、相当の熟練を必
要とする。即ち所望の値よりも薄すぎたり、逆に厚すぎ
たりすることが多く、咬み切ってしまうことも縷々ある
のである。When taking the impression of the upper and lower jaws using the above-mentioned individual tray, it is not possible to perform a predetermined occlusal elevation at the same time. Bite wax must be used separately to raise the bite. However, when occlusal elevation is performed using conventional bite wax, the interval changes depending on the strength of the occlusal pressure, so even a dentist requires considerable skill to obtain the prescribed elevation value. .. That is, it is often thinner than the desired value, or conversely, too thick, and bites may be cut off.
【０００５】[0005]
【課題を解決するための手段】本発明に係る個人トレイ
は、軟化点が50℃以上の熱可塑性樹脂よりなり、歯列弓
形に略一致する馬蹄形に形成されるとともに舌側、頬側
及び唇側に延びる延長体を有する主材と、該主材の臼歯
咬合圧が加わる部位に平面状に埋設された、咬合圧印加
により変形しない複数の球体とからなるものである。A personal tray according to the present invention is made of a thermoplastic resin having a softening point of 50 ° C. or higher, is formed into a horseshoe shape that substantially matches a dental arch shape, and is lingual, buccal and lip. It is composed of a main material having an extension body extending to the side, and a plurality of spheres embedded in a planar shape in a portion of the main material to which the occlusal pressure is applied and not deformed by the application of the occlusal pressure.
【０００６】また本発明に係る印象採得方法は、上記個
人トレイを加温軟化させ、歯牙間に挟んで咬み合わせ、
上記球体にて一定間隔咬合挙上した状態で成形した後、
上記個人トレイ内面に歯科用印象材を充填して、再度歯
牙間に挟み咬み合わせ、印象材を硬化させるものであ
る。The impression taking method according to the present invention is such that the individual tray is heated and softened, sandwiched between the teeth, and occluded.
After molding in the state of occlusal elevation at the above-mentioned sphere,
The inner surface of the personal tray is filled with a dental impression material, and the impression material is cured by sandwiching the tooth impression material between the teeth again.
【０００７】[0007]
【作用】個人トレイは、湯等につけて加温軟化した状態
で、口腔内に入れ歯牙間に挟んでゆっくり咬む。抵抗を
感じた時点で咬むのをやめ、冷却後取り出すと、トレイ
の咬合面は、咬合により変形し、咬合面の圧痕が形成さ
せる。上下歯牙の咬合面は、球体の直径分だけ挙上され
ている。この個人トレイ内面に歯科用印象材が充填さ
れ、再度口腔内に入れられて、印象採得が行われる。[Function] The individual tray, which is warmed and softened by being immersed in hot water or the like, is bitten between the dentures in the oral cavity and bitten slowly. When biting is stopped when resistance is felt, and the tray is taken out after cooling, the occlusal surface of the tray is deformed by the occlusal surface and an indentation of the occlusal surface is formed. The occlusal surfaces of the upper and lower teeth are elevated by the diameter of the sphere. The inner surface of the personal tray is filled with a dental impression material, and the dental impression material is put into the oral cavity again to take an impression.
【０００８】[0008]
【実施例】図１において、１は個人トレイで、軟化点が
50℃以上の熱可塑性樹脂、例えばポリ酢酸ビニル樹脂、
エチレン酢酸ビニル共重合体樹脂、ポリエチルメタクリ
レート樹脂、ポリメチルメタクリレート樹脂、塩化ビニ
ル・酢酸ビニル共重合体樹脂、グッタペルカ、コーパ
ル、セラック、クマロン・インデン樹脂、トランスポリ
イソプレン樹脂、ポリカプロラクトン樹脂の単体又は複
合体を主成分とし、必要に応じて可塑材、充填材等を添
加し、歯列弓形に略一致する馬蹄形に形成され、両側即
ち舌側、頬側及び唇側に延長体を有する主材２、及びこ
の主材２の臼歯咬合圧が加わる部位に平面状に埋設され
た複数の球体３，３─よりなる。この球体３，３─は、
全臼歯即ち４番ないし７番の歯の咬合面に位置するよう
に配置できるが、５番及び６番の歯の咬合面のみに配置
すれば実用上十分である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 1 is a personal tray having a softening point.
Thermoplastic resin of 50 ° C or higher, for example, polyvinyl acetate resin,
Ethylene vinyl acetate copolymer resin, polyethylmethacrylate resin, polymethylmethacrylate resin, vinyl chloride / vinyl acetate copolymer resin, gutta percha, copal, shellac, coumarone indene resin, trans polyisoprene resin, polycaprolactone resin alone or Main material is a composite material, and if necessary, plastic materials, fillers, etc. are added, and it is formed into a horseshoe shape that approximately matches the arch shape of the tooth. 2 and a plurality of spheres 3 and 3 embedded in a plane shape in the portion of the main material 2 to which the molar occlusal pressure is applied. These spheres 3, 3-
Although it can be arranged so as to be located on the occlusal surfaces of all molars, that is, teeth Nos. 4 to 7, it is practically sufficient if it is arranged only on the occlusal surfaces of Nos. 5 and 6.
【０００９】球体３，３─は、ポリエチレン樹脂、ポリ
プロピレン樹脂、ナイロン樹脂、ポリウレタン樹脂、ポ
リスチレン樹脂、アクリルニトリルブタジエンスチレン
樹脂、アクリルニトリルスチレン樹脂、ポリカーボネー
ト樹脂、塩化ビニル樹脂、ポリエチレンテレフタレート
樹脂、ポリブチレンテレフタレート樹脂等の単体又は複
合体が使用でき、その直径は約0.３mmないし6.０mmの範
囲で用途の応じて一定の値に設定される。この個人トレ
イ１を使用してスポーツ用マウスピースを製作する場
合、直径約2.０mmが標準的である。球体３，３─は、主
材２内に約２mm間隔で略均一かつ一平面上に分散されて
いる。The spheres 3, 3 are polyethylene resin, polypropylene resin, nylon resin, polyurethane resin, polystyrene resin, acrylonitrile butadiene styrene resin, acrylonitrile styrene resin, polycarbonate resin, vinyl chloride resin, polyethylene terephthalate resin, polybutylene terephthalate. A single substance such as a resin or a composite can be used, and its diameter is set to a constant value in the range of about 0.3 mm to 6.0 mm according to the application. When a sports mouthpiece is manufactured using this personal tray 1, a diameter of about 2.0 mm is standard. The spheres 3, 3-are substantially uniformly dispersed in the main material 2 at intervals of about 2 mm.
【００１０】主材２の軟化温度は50℃以上に設定されて
おり、湯等につけることにより軟化し、咬合圧加により
変形する。一方球体３，３─は、これらの温度に加温さ
れても変形しない材料で形成されなければならず、上記
熱可塑性エラストマーの如き軟化温度約１００℃以上の
ものが適している。The softening temperature of the main material 2 is set to 50 ° C. or higher, and it softens when immersed in hot water or the like, and deforms by occlusal pressure. On the other hand, the spheres 3 and 3 must be made of a material that does not deform even when heated to these temperatures, and those having a softening temperature of about 100 ° C. or higher, such as the thermoplastic elastomer, are suitable.
【００１１】上記個人トレイ１は、図２に示すように、
約80℃ないし１００℃の湯中に約10ないし15秒間つけて
軟化させた後、口腔内に挿入して、歯の間に挟み、咬ま
れる。個人トレイ１は咬合圧印加により押し潰され変形
する。球体３，３─は、咬合圧が印可されても変形しな
いから、上下臼歯４，４間には、この球体３，３─の直
径で決まる距離だけ間隔があく。ここで球体３，３─が
主材２内で一平面上に配列されているのは次のような理
由による。即ち一平面上に配列せず、上下に球体３，３
─が分散していると、臼歯の窩５内に２個以上の球体
３，３─が重なって配置される可能性があり、所定の挙
上値が得られなくなるのである。The personal tray 1 is, as shown in FIG.
After being soaked in hot water at about 80 ° C to 100 ° C for about 10 to 15 seconds to be softened, it is inserted into the oral cavity, sandwiched between teeth, and bitten. The individual tray 1 is crushed and deformed by applying an occlusal pressure. Since the spheres 3 and 3 do not deform even when an occlusal pressure is applied, there is a distance between the upper and lower molars 4 and 4 by a distance determined by the diameter of the spheres 3 and 3. Here, the spheres 3, 3 are arranged in one plane in the main material 2 for the following reason. That is, it is not arranged on one plane, but the spheres 3 and 3 are arranged vertically.
If ??? is dispersed, there is a possibility that two or more spheres 3, 3 ??? are arranged in the fossa 5 of the molar, and a predetermined elevation value cannot be obtained.
【００１２】口腔内で押圧成形された個人トレイ１は、
口腔内で自然冷却させ、口腔内温度付近まで低下させ、
個人トレイに圧力を加えても変形しない程度に硬化した
段階で取り出される。然る後、個人トレイ１の内面に、
図３に示すように歯科用印象材６例えばシリコン系印象
材を充填し、再度口腔内に入れて咬み、印象材６の硬化
を待ち、その後取り出す。かくして形成された個人トレ
イ１の内面に、石膏が流し込まれ、模型が製作される。
個人トレイ１の外面の咬合歯咬合面の圧痕が形成された
面に石膏を流し、他方の石膏模型を製作する。２つの模
型は、咬合器に同時装着されて、例えば義歯、マウスピ
ース等の製作がなされる。The personal tray 1 pressed in the oral cavity is
Allow it to cool naturally in the oral cavity and lower it to around the oral temperature.
It is taken out when it has hardened so that it does not deform even if pressure is applied to the personal tray. After that, on the inner surface of the personal tray 1,
As shown in FIG. 3, a dental impression material 6 such as a silicon-based impression material is filled, and the dental impression material 6 is put into the oral cavity again to bite, waiting for the impression material 6 to harden, and then taking it out. Gypsum is poured into the inner surface of the personal tray 1 thus formed, and a model is produced.
Gypsum is cast on the surface of the individual tray 1 on which the indentation of the occlusal tooth outer surface is formed, and the other plaster model is manufactured. The two models are attached to the articulator at the same time to manufacture, for example, a denture or a mouthpiece.
【００１３】図４及び図５は、球体３，３─同士を糸状
の連結体７で連結した他の実施例を示す。連結体７は、
歯列方向に一致する一本の主連結体８と、これに略直交
する複数の副連結体９よりなる。主、副連結体８，９
は、太さ約0.１ないし0.５mmの糸状に形成される。主連
結体８には、約５mm間隔で直径約2.０mmの球体３，３─
が配列されている。副連結体９は、主連結体８上の２個
の球体３，３の中間部分において主連結体と直交して交
差する。副連結体９の両端には、球体３，３─が配列さ
れている。かかる連結された球体３，３─が個人トレイ
１の５番及び６番の臼歯対応部分に埋設されている。球
体３，３─の直径は、この個人トレイ１を用いてスポー
ツ用マウスピースを製作する場合、スポーツの種類、目
的に応じて約1.０ないし3.０mmの範囲が多く、標準的に
は前述の如く、2.０mmが使用される。また顎偏移症、顎
関節症等の治療に使用されるマウスピース（テンプレー
トと呼ばれる）を製作する場合には、症例に応じて、約
0.３ないし6.０mm程度の範囲で設定される。義歯製作に
際して咬合挙上を行う場合にも、0.５ないし1.０mm程度
の値が設定されることが多い。球体３，３─及び連結体
７は、球体３の材料の射出成形又はプレス成形により一
体成形することができる。球体３，３─及び連結体７
は、弾性をもたない熱可塑性樹脂を使用することも可能
である。4 and 5 show another embodiment in which the spherical bodies 3, 3 are connected by a thread-shaped connecting body 7. The connecting body 7 is
It is composed of one main connecting body 8 that matches the dentition direction and a plurality of sub connecting bodies 9 that are substantially orthogonal to this. Main and sub-connectors 8, 9
Is formed into a thread shape having a thickness of about 0.1 to 0.5 mm. The main connecting body 8 has spheres 3, 3 with a diameter of about 2.0 mm at intervals of about 5 mm.
Are arranged. The sub-connecting body 9 intersects with the main connecting body at a right angle in the middle portion of the two spheres 3 on the main connecting body 8. Spheres 3, 3 − are arranged at both ends of the sub-connecting body 9. The connected spheres 3, 3 are embedded in the portions corresponding to the 5th and 6th molars of the personal tray 1. The diameters of the spheres 3 and 3 are often in the range of about 1.0 to 3.0 mm depending on the type of sport and the purpose when a sports mouthpiece is manufactured using this personal tray 1, and the standard is As mentioned above, 2.0 mm is used. Also, when manufacturing a mouthpiece (called a template) used for treatment of jaw deviation, temporomandibular disorders, etc., depending on the case,
It is set in the range of 0.3 to 6.0 mm. A value of about 0.5 to 1.0 mm is often set even when occlusal elevation is performed when manufacturing a denture. The spheres 3, 3-and the connecting body 7 can be integrally molded by injection molding or press molding of the material of the sphere 3. Spheres 3, 3-and connecting body 7
It is also possible to use a thermoplastic resin having no elasticity.
【００１４】図６に示すように、上記構造の個人トレイ
１を、湯中につけて加温軟化させ、主連結体８が臼歯
４，４の略中心に位置するよう口腔内で調整して咬ませ
ると、個人トレイ１は変形し、主連結体８上の球体３，
３─が歯中心の窩５に位置し、副連結体９上の球体３は
それぞれ舌側咬頭１０に位置する。球体３，３─は、連
結７で連結されているため、その移動が制限され、個人
トレイ１の主材２が咬合圧印加により変形流動しても位
置が大きく変化することは少なく、また球体３，３─同
士が上下に重なることはない。主、副連結体８，９は、
細くかつ可撓性を有するから、咬合圧が加わると、主材
２の変形に応じて変形するが、主材２により固定されて
いるために、その形状は咬合圧を取り除いても保持され
る。このような過程を経て、成形された個人トレイ１
は、前述した如くその内面に歯科用印象材６（図３）が
充填され、印象採得が行われる。As shown in FIG. 6, the personal tray 1 having the above structure is soaked in hot water to heat and soften it, and the main connecting body 8 is adjusted in the oral cavity so that it is located substantially at the center of the molars 4 and 4. If it is, the personal tray 1 is deformed, and the spheres 3 on the main connecting body 8 are
3− is located in the fossa 5 at the center of the tooth, and the spheres 3 on the sub-connectors 9 are located at the lingual cusp 10. Since the spheres 3 and 3 are connected by the connection 7, the movement thereof is restricted, and the position of the main member 2 of the individual tray 1 does not change greatly even if the main member 2 is deformed and flow by the application of occlusal pressure. There is no vertical overlap between the three and three. The main and sub connecting bodies 8 and 9 are
Since it is thin and flexible, when occlusal pressure is applied, it deforms according to the deformation of the main material 2, but since it is fixed by the main material 2, its shape is retained even if the occlusal pressure is removed. .. A personal tray 1 formed through such a process
As described above, the impression surface is filled with the dental impression material 6 (FIG. 3) and the impression is taken.
【００１５】図７は、個人トレイ１の更に他の実施例を
示し、臼歯（５，６番）対応位置にくり抜き孔１１を形
成し、この中に連結体７で結んだ球体３，３─を張架さ
せたものである。かかる構造の個人トレイ１も前述と同
様、湯中につけられ、軟化され、口腔内にて咬み合わさ
れ、前歯部、舌側、頬側及び唇側が成形された後、歯科
用印象材が個人トレイ１の内面及びくり抜き孔１１に充
填され、再度咬合による精密印象が採得されるのであ
る。かかる構造では、主材２が臼歯部に存在しないか
ら、比較的弱い咬合圧で正確に挙上値を得ることができ
る。FIG. 7 shows still another embodiment of the personal tray 1, in which hollow holes 11 are formed at positions corresponding to molars (Nos. 5 and 6), and spheres 3 and 3 connected by a connecting body 7 therein. Is stretched. In the same manner as described above, the personal tray 1 having such a structure is also immersed in hot water, softened, occluded in the oral cavity, and the anterior teeth, lingual side, buccal side and labial side are formed, and then the dental impression material is applied to the personal tray 1. The inner surface and the hole 11 are filled, and a precise impression by occlusion is taken again. In such a structure, since the main material 2 is not present in the molars, the elevation value can be accurately obtained with a relatively weak bite pressure.
【００１６】本発明に係る個人トレイ及び印象採得方法
は、長期間の使用により咬合面が擦り減って咬合関係が
低くなった義歯を用いて、新しい義歯を製作する場合、
即ち一定間隔の咬合挙上は必要な場合、所定間隔咬合挙
上を行う矯正装置、顎関節用治療装置、スポーツ用マウ
スピースの製作等に利用して好適である。According to the personal tray and the impression taking method of the present invention, when a new denture is manufactured using a denture whose occlusal surface is worn down and the occlusal relationship is lowered due to long-term use,
That is, when occlusal elevations at regular intervals are necessary, it is suitable for use in manufacturing a correction device for performing occlusal elevations at predetermined intervals, a treatment device for temporomandibular joints, sports mouthpieces, and the like.
【００１７】尚、上記実施例では、一方の顎のみの印象
を採得する個人トレイにつき説明したが、舌側、頬側及
び唇側の延長体を上方及び下方の形成することにより、
上下両顎の歯齦部まで同時に印象を採得することもでき
る。この場合、印象材は上下両方に充填される。In the above embodiment, the personal tray for obtaining the impression of only one of the jaws has been described, but by forming the extension bodies on the tongue side, the cheek side and the lip side above and below,
It is also possible to take impressions of both upper and lower jaw teeth at the same time. In this case, the impression material is filled up and down.
【００１８】[0018]
【発明の効果】本発明に係る個人トレイによれば、咬合
挙上を行うに際し、予め決められた直径を有する複数の
球体を一平面上に配列し、これを熱可塑性樹脂よりなる
主材に埋設したことにより、正確に所定間隔の咬合挙上
を行うことができる。According to the personal tray of the present invention, when performing occlusal elevation, a plurality of spheres having a predetermined diameter are arranged on one plane, and this is used as the main material made of thermoplastic resin. By being embedded, the occlusal elevation can be accurately performed at predetermined intervals.
【００１９】また本発明に係る個人トレイによれば、複
数の球体を連結体で結び、これを熱可塑性樹脂よりなる
主材内に埋設或いは主材に形成したくり抜き孔に張架し
たから球体が上下に重なることはなく、球体の直径に一
致した咬合挙上を行うことができる。Further, according to the personal tray of the present invention, a plurality of spheres are connected by a connecting body, and the spheres are embedded in a main material made of a thermoplastic resin or stretched in a hollow hole formed in the main material to form a sphere. It is possible to perform occlusal elevation matching the diameter of the sphere without overlapping vertically.
【００２０】また本発明に係る印象採得方法によれば、
一定間隔の咬合挙上を得る球体を有する個人トレイを使
用するから、従来の如く、上下顎の印象を別々に採り、
かつバイトワックスを用いて咬合採得を行う方法に対
し、所定の値に挙上した上下顎位の印象を同時に採得す
ることができ、マウスピース、義歯の製作等を迅速かつ
正確に行うことが可能となる。According to the impression taking method of the present invention,
Since we use a personal tray with spheres to obtain occlusal elevations at regular intervals, we take the impressions of the upper and lower jaws separately as before,
Moreover, it is possible to obtain the impression of the upper and lower jaw positions raised to a predetermined value at the same time as compared with the method of obtaining occlusal using bite wax, and it is possible to quickly and accurately manufacture mouthpieces, dentures, etc. It will be possible.
【図１】本発明実施例に係る個人トレイの斜視図であ
る。FIG. 1 is a perspective view of a personal tray according to an embodiment of the present invention.
【図２】咬合状態を示す断面図である。FIG. 2 is a cross-sectional view showing an occlusal state.
【図３】印象材を充填した咬合状態を示す断面図であ
る。FIG. 3 is a sectional view showing an occlusal state filled with an impression material.
【図４】本発明他の実施例に係る個人トレイの斜視図で
ある。FIG. 4 is a perspective view of a personal tray according to another embodiment of the present invention.
【図５】連結された球体を示す平面図である。FIG. 5 is a plan view showing connected spheres.
【図６】咬合状態を示す断面図である。FIG. 6 is a cross-sectional view showing an occlusal state.
【図７】本発明さらに他の実施例を示す斜視図である。FIG. 7 is a perspective view showing still another embodiment of the present invention.
１ 個人トレイ ２ 主材 ３ 球体 ４ 印象材 ７ 連結体 ８ 主連結体 ９ 副連結体 １１ くり抜き孔 1 Personal Tray 2 Main Material 3 Sphere 4 Impression Material 7 Connected Body 8 Main Connected Body 9 Sub Connected Body 11 Drilled Hole
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34995591AJPH05154167A (en) | 1991-12-09 | 1991-12-09 | Individual tray and impression taking method using this individual tray |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34995591AJPH05154167A (en) | 1991-12-09 | 1991-12-09 | Individual tray and impression taking method using this individual tray |
| Publication Number | Publication Date |
|---|---|
| JPH05154167Atrue JPH05154167A (en) | 1993-06-22 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34995591APendingJPH05154167A (en) | 1991-12-09 | 1991-12-09 | Individual tray and impression taking method using this individual tray |
| Country | Link |
|---|---|
| JP (1) | JPH05154167A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240078040A (en)* | 2022-11-25 | 2024-06-03 | 동의대학교 산학협력단 | Photopolymerizable composition for manufacturing personalized impression trays containing EVA as an active ingredient and personalized impression trays containing the same |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240078040A (en)* | 2022-11-25 | 2024-06-03 | 동의대학교 산학협력단 | Photopolymerizable composition for manufacturing personalized impression trays containing EVA as an active ingredient and personalized impression trays containing the same |
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