M338644 八、新型說明： 【新型所屬^技術領域】 新型領域 本新型係有關於齒列矯正用托架，係有關於一種用於 5齒列矯正治療之齒列橋正用托架。更詳而言之，其係有關M338644 VIII. New description: [New type of technology] New field This new type relates to the bracket for orthodontic correction, and relates to a bracket for the dentition bridge for the treatment of 5-dental alignment. More in detail, it is related
於-種溝部之底面形狀構成曲面形狀之齒列續正用托架。 t先前技術;J 新型背景 於對齒列不整之橋正治療法使用托架係習知且廣為人 10知。齒列矯正係將托架接著於牙齒’將安裝於此托架等之 弓線之物理拉伸力、亦即按壓、拉回、扭轉等復原力施予 牙齒，逐漸改變牙齒之位置，以墙正齒列。在__般之❹ 上，於托架之本體中央部形成用以固定弓線之溝部，且於 本體外側設置翼。於此溝部安裝弓線後，藉由翼將結紫機 15 構卡合於弓線，固定弓線。 此種托架之材質若重視審美性時，最近大都不使用金 屬製，而使用塑膠或陶竟製。弓線之材質使用欽合金、不 鏽鋼等不生鏽者。此種齒列矯正用把架已知有各種經 者，大部份為溝部(槽）呈直條狀者。 & 說明習知例，已知材質主要為聚碳酸醋之塑膠、複合 塑料製，而於接合面形成加等之改良托架(例如參照專利 文獻D。如專利文獻2〜專利文獻5所示，本體形狀因安裝之 齒形狀不同，雖各有不同處，但皆進行對齒面之接著性或 弓線之安裝等之改良。亦有㈣之底部配合$線而形成曲 20 M338644 率之方法之例（參照專利文獻6)。 【專利文獻1】日本專利公開公報2003-290251號 【專利文獻2】曰本專利公開公報2007-202號 【專利文獻3】曰本專利公開公報平11-2〇6783號 5 【專利文獻4】日本實用新型公開公報平6-44518號 【專利文獻5】曰本實用新型公開公報平5_63517號 【專利文獻6】曰本專利公開公報平8_168498號 新型揭示The bottom surface shape of the groove portion constitutes a curved shape dentition renewal bracket. t Prior art; J new background The use of brackets for the treatment of bridges with dentition is well known and widely known. The dentition correction system applies the restoring force of the physical stretching force, that is, pressing, pulling back, twisting, etc. of the arch line attached to the bracket or the like to the teeth, and gradually changes the position of the teeth to the wall. Orthodontic column. In the __like manner, a groove for fixing the archwire is formed at a central portion of the body of the bracket, and a wing is provided outside the body. After the archwire is installed in the groove portion, the knotting mechanism is engaged by the wing to fix the archwire. When the material of such a bracket is aesthetically pleasing, the metal system has not been used recently, and the plastic or ceramic system is used. The material of the bow line is made of zirconia, stainless steel, etc.. Such a rack for orthodontic treatment is known to have various types of carriers, and most of them have a straight strip shape (groove). In the conventional example, it is known that the material is mainly made of a plastic of polycarbonate or a composite plastic, and an improved bracket is formed on the joint surface (see, for example, Patent Document D. Patent Document 2 to Patent Document 5) The shape of the body is different depending on the shape of the tooth to be mounted. However, the difference in the shape of the tooth surface or the installation of the arch line is also improved. There is also a method in which the bottom of the (4) is matched with the line to form a curve of 20 M338644. (Patent Document 6) [Patent Document 1] Japanese Patent Laid-Open Publication No. 2003-290251 [Patent Document 2] Japanese Patent Laid-Open Publication No. 2007-202 [Patent Document 3] Japanese Patent Laid-Open Publication No. Hei No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei.
習知之托架大多如前述，溝之底面部呈直線狀。由於 10此托架使用複數個沿齒面安裝，故即使溝底面為直線，仍 將橫跨複數個托架安裝，故使用上不太有問題。然而，其 結構為安裝時，弓線以直線狀接觸底面部，在溝之兩端部 壓制托架。因而，現狀呈弓線相對於托架以單側接觸強力 按壓之狀態。 15 因此，安裝後，呈紮緊狀態時，弓線與底面部、特別 是溝之端部底面間產生摩擦阻力。此損傷弓線及托架，且 安裝狀態對齒面造成大負擔。以複數齒構成之齒列沿齒列 弓描繪圓弧，各齒並非整齊排列。弓線亦沿此齒列描繪平 緩之曲線。齒之配置結構在上下、前後、左右方向微妙地 2〇 因人而異。 因而’原本插入弓線之托架之溝亦沿弓線之設置形狀 為理想。不需特別或複雜之方法，以平易之方法形成預定 溝形狀為佳。如此，可要求儘可能減少伴隨弓線之安裝產 生之與托架之摩擦的結構。本新型解決此習知之問題點， 6 M338644 弓 達打述目的。本新型之目的在於提供_種可解 線女裝產生之摩擦阻力之齒列矯正用托架。、故 【新型内容】 新型概要 5 本新型提出-種齒列矯正用托架，為達成上述目的， 本新型齒列矯正用托架可以下述手段達成。 、 本新型1之齒列橋正用托架係於下部具有與齒面接合 之接合面（5)，於本體中央部設置溝部（2)，以卡止弓線(句 用以進灯齒列墙正之托架，而前述溝部⑵之底面部⑼沿前 10述弓線之長向形成曲面形狀。 口别 本新型2之歯列橋正用托架之特徵係在本新到中，前 述溝部(2)之端部周圍形成曲面形狀之倒角（1”。 月1 本新型3之齒列矯正用托架之特徵係在本新型丨中，前 述溝部(2)之端部形成錐形之倒角（u)。 5 本新型4之齒列矯正用托架之特徵係在本新型丨中，前 述溝部（2)之側壁（13)形成從前述溝部（2)之中央部（丨4)沿兩 端部（15)展開之傾斜面形狀。 本新型5之齒列矯正用托架之特徵係在本新型丨中，前 述托架（1)之材質以陶瓷構成。 ° 本新型6之齒列橋正用托架之特徵係在本新型5中，前 述溝部（2)之底面部（9)形成曲率較前述弓線之齒列曲率小 之曲面形狀。 本新型7之齒列矯正用托架之特徵係在本新型6中，前 述溝部（2)之底面部（9)形成曲率依具複數齒之齒列各群組 M338644 而不同之曲面形狀。 本新型8之齒列續正用托架之特徵係在本新型7中，前 述溝部(2)之側壁(16)係前述溝部(2)之中央部兩側面形成凹 陷之形狀之凹部，且溝寬度加大者。 5 本新型齒列續正用托架藉使溝部之底面呈曲面形狀， 將弓線插入至托架之溝後，於齒列矩正時，弓線沿插入長 方在溝底面全區域可維持接觸狀態。又，由於兩端部撕 曲面形狀之削平，故弓線對托架不以溝部之兩端部單 觸，而可均等地對齒面按壓。 因而，可解決弓線與托架相互之摩擦阻力。藉此，托 架及弓線不致損傷，可形成托架全體對此齒面之I按壓 力。 圖式簡單說明 第1圖係本新型齒列墙正用托架之平面圖。 15 第2圖係第1圖之A-A截面圖。 第3圖係第1圖之B-B截面圖。 第4圖係顯示另一實施形態之齒列矯正用托架之平面 圖。 > 第5圖係顯示另一實施形態之齒列矯正用托架之平面 20 圖。 、 第6圖係顯示安裝有托架及弓線之齒列結構之說明圖。 C資施方式】 用以實施新型之最佳形態 以下，參照圖式，說明本新型之實施形態。苐丨圖係顯 8 M3 3 8644 不本新型齒列矯正用托架丨之實施形態之平面圖。第2圖係 第1圖之A-A截面圖，第3圖圖係第1圖之B_B截面圖。第1圖 所示之托架1係稱為雙托架（twin bracket)之具有2組翼3之 陶瓷製者。 5 於托架之中央部上面以貫穿之狀態形成配置為維持弓 線4而呈凹狀之插入用溝部、亦即槽。此托架丨如其他單托 架般，依治療方法、治療技術等提出許多種類。關於本新 型托架之實施形態，以前述形狀之托架丨為前提來說明。托 架1依安裝之齒之部位有門齒用、犬齒用、小臼齒用、大臼 10齒用等。力矩或弓形姿勢等不同，依矯正之齒之方向等， 形狀亦不同，而有配合此之各種托架。此托架丨之基本構造 係於中央部配置用以插入弓線之溝2，於側壁配置翼3。 根據托架之類型，亦有用以將結紮構件卡止於此之鈎 配置於翼3者。托架1之下面形成與牙齒接合之接合面5，接 15合面5藉由接著劑接著於齒面6。由於該等托架丨之本體之基 本構造、機能為習知，故在此省略詳細說明。本新型之要 旨係有關於如此構成之托架1之溝形狀。 如第1圖所示，於托架1之中央部設置面將弓線4一面於 箭頭方向移動調整、一面嵌入之溝部2。在此中央部，相對 20 於用以插入弓線4之溝部2，於弓線4之插入方向之直角方向 亦設置溝7。於第1圖之托架1，以從本體中央部往橫穿過弓 線4之插入方向之方向伸出之狀態構成翼3。托架丨之材質為 塑膠或陶瓷，在本實施形態中，在使用陶瓷之前提下說明 矯正牙齒時，弓線4沿箭頭方向插入至溝部2。 w v線4 9 M338644 插入至溝部2後’若以-般之結紮方法結紫時，如假想線(參 照第3圖）所示，以不鏽鋼結紮線或聚氨醋之模具(〇形環)等 結紮機構8將弓線4固定於糾卜此時，於翼3捲繞結紫機 構8，而纏繞於弓線4，將弓線4按壓至溝部2之底面而固定， 5若藉最近成為主流之低摩擦系統之結紮方法（例如本申靖 人之商標夕1^对以之等）亦可卡止。若為此方法’可更 減低摩擦。 此固定係根據牙齒之條件、諸如安裝角度等托架1之安 裝條件，固定狀態改變。托架i係將複數個沿齒列安裝，齒 10列排列成曲線狀。習知即使齒列為曲線狀，托架丨之溝部2 之底面9仍呈直線狀。然而，齒面6雖為具圓形者，但並不 相同，齒面6之結構因人而異。 即，當複數托架1沿齒面6之圓形安裝時，相鄰之裔面6 之相互高度不同，托架1相對於齒面6之位置上下、左右錯 15開。當托架1之溝部2之底面呈直線狀時，弓線4於底面沿長 向以直線狀配置，在此底面9之兩端部1〇呈單側接觸，托架 1在此部份強力按壓至齒面6。 又，當紮緊弓線4時，在托架丨上稍微相互移動。即， 此單側接觸於紮緊弓線4時，#中按壓兩端部，為使弓線4 20越過溝部2來調整，一面紮緊，一面移動時，產生大摩擦阻 力。此時，與托架1間產生摩擦阻力。當此摩擦阻力增大時， 有於弓線4及托架1產生損傷之虞。在本新型中，使此底面9 之中央部呈略為隆起之曲面形狀。此曲面形狀之半徑尺寸s 為沿齒列描繪平緩曲線之程度。更嚴緊為曲面形狀之半徑s M3 3 8644 之尺寸依各齒面6而不同，以較弓線4之纏繞曲率小且平均 之尺寸統一。 即’呈以沿齒列之狀態配置托架1與弓線4之形態。進 一步，溝部2之兩端部10形成r形曲面形狀之倒角丨丨。此倒 5角11係插入弓線4後，防止紮緊時，集中單侧接觸之故。呈 可防止兩端部10之損傷之程度之R形。不僅可呈R形，雖圖 中未示但亦可使兩端部0呈錐狀來削平。即，使兩端部1〇之 倒角11呈形成於外側展開之平緩傾斜面之形狀。 此倒角11包含溝部2之底面9及溝部2之側面部12。藉令 10溝部2呈R形，即使產生齒面6相互之位移，亦不易產生兩端 部10之單側接觸。藉呈此種形狀，即使為如陶瓷般硬之材 質之托架1，亦不致成為伴隨集中應力之按壓，故可避免托 架破損等麻煩。若弓線4未均一抵接時，只要弓線4特別抵 接底面9之中央部，亦可以中央部之按壓按壓至齒面6。此 15係指當以弓線4按壓托架1時，接合面5均一地按壓至齒面6。 弟4圖係顯示另一實施形態者，令底面9之曲面形狀與 第1圖相同，同時，使溝部2之側面13亦呈從中央部14沿兩 、部15展開之曲面形狀。此如以圖之鏈線所示般，可使弓 線4傾斜安裝於托架1。即使複數之托架丨相對於齒面6於高 20度方向稍微偏離，即使有角度偏離，仍可因應，同時，亦 可因應托架1相對於齒面6於上下方向、左右方向或傾斜安 裝。 又另一實施形態在第5圖所示者為托架丨係溝部2之側 面16中央部之兩側面形成凹陷之形狀之凹部17，且溝寬度 11 M3 3 8644 加大者。此為呈弓線4不接觸中央部側面之形狀之例。若側 面平坦，^將弓線4没置於托架1時，亦有僅接觸侧面中央 部之情形。此時，有弓線4對托架1單側接觸而不穩定之虞。 為避免此單側接觸，僅側面之中央部份凹陷，亦即作為凹 5部17，弓線4不致接觸。藉此，弓線4僅接觸溝部2兩端部之 側面16，故可使接觸摩擦少，保持穩定。 第6圖係顯示齒列形態一例者，顯示下顎骨齒列之半圓 形狀者。各齒以標準狀態配置。矯正齒列，以形成此配置 之齒列。依各齒安裝托架1，於此托架丨之溝部2描繪弓形而 1〇捲繞弓線4。為方便，將齒列分為3個群組，前部及犬齒等 前端尖銳之齒20、21、22之群組A、小臼齒23、24之群組^、 大臼齒25、26之群組C而配置。 由於齒列為左右對稱，故群組分類限於顯示第6圖右 側，而左側亦相同。根據此，群組A具有3個齒，群組3及〔 15具有2個齒。安裝之托架！依群組a、B、c，幾乎為相同形 狀者，底部9之曲面曲率相同。沿此齒列纏繞之弓線4之嚴 密曲率在群組A、B、C略為不同。 因而，托架1之溝部2曲面形狀亦為沿弓線4之曲率者。 托架1之溝部2之曲率較弓線4纏繞之狀態之曲率小，並且進 20行溝部2之兩端部1〇之削平。藉此，可實現無摩擦阻力之弓 線4之安裝。藉使托架丨之曲率較弓線4之曲率小，即位置稍 倣錯開，托架1之安裝角度稍微改變，亦可避免單側接觸。 以上，說明了本新型之實施形態，本新型之具體結構不限 於此例是無須贅言的。 12 M338644 【圖式簡單說明3 第1圖係本新型齒列矯正用托架之平面圖。 第2圖係第1圖之A-A截面圖。 第3圖係第1圖之B-B截面圖。 5 第4圖係顯示另一實施形態之齒列矯正用托架之平面 ’ 圖。 - 第5圖係顯示另一實施形態之齒列矯正用托架之平面 圖。 > 第6圖係顯示安裝有托架及弓線之齒列結構之說明圖。 10 【主要元件符號說明】 1...托架 13...側面 2…溝 14...中央部 3…翼 15...兩端部 4…弓線 16…側面 5...接合面 17···凹部 6...齒面 20···齒 7...卡止溝 21···齒 8...結紮機構 22···齒 9...底面 23...小臼齒 10...兩端部 24...小臼齒 11…倒角 25...大臼齒 12·.·側面部 26...大臼齒 13Most of the conventional brackets are as described above, and the bottom surface of the groove is linear. Since 10 brackets are mounted on a plurality of flank surfaces, even if the bottom surface of the groove is straight, it will be installed across a plurality of brackets, so that there is no problem in use. However, when the structure is such that the wire is in contact with the bottom portion in a straight line, the bracket is pressed at both ends of the groove. Therefore, the current state is a state in which the bow line is strongly pressed with respect to the bracket with one side contact. 15 Therefore, after the installation, when it is in a tight state, frictional resistance is generated between the arch line and the bottom surface portion, particularly the bottom surface of the groove. This damages the archwire and the bracket, and the mounting state imposes a heavy burden on the tooth surface. The dentition consisting of a plurality of teeth depicts an arc along the dentition, and the teeth are not aligned. The arch line also depicts a gentle curve along this dentition. The configuration of the teeth is subtly different in the up, down, front and back, and left and right directions. Therefore, the groove of the bracket originally inserted into the archwire is also ideally arranged along the bow line. It is preferable to form a predetermined groove shape in a simple manner without a special or complicated method. As such, it may be desirable to minimize the structure of the friction with the bracket that results from the installation of the archwire. This new problem solves this problem, 6 M338644 bows the purpose of the statement. The purpose of the present invention is to provide a bracket for orthodontic correction of the frictional resistance generated by the detachable women's wear. Therefore, [New content] A new type of outline 5 This invention proposes a bracket for correcting a kind of dentition. To achieve the above object, the bracket for orthodontic correction of the present invention can be achieved by the following means. The bracket of the tooth bridge of the present invention 1 has a joint surface (5) joined to the tooth surface at a lower portion, and a groove portion (2) is provided at a central portion of the body to lock the bow line (sentence for entering the tooth row) The wall is positively bracketed, and the bottom surface portion (9) of the groove portion (2) is formed into a curved shape along the longitudinal direction of the bow line of the first ten. The characteristics of the bracket of the new type 2 bridge are in this new arrival, the groove portion (2) A chamfered surface (1" is formed around the end portion. The first type of the dentition correction bracket of the present invention is characterized in that the end portion of the groove portion (2) is tapered. Chamfering (u). The present invention is characterized in that the side wall (13) of the groove portion (2) is formed from the central portion of the groove portion (2) (丨4). The shape of the inclined surface developed along the both end portions (15). The bracket for correcting the orthodontic bracket of the present invention is characterized by the present invention, wherein the material of the bracket (1) is made of ceramic. The column of the bridge is characterized by the bracket 5, and the bottom portion (9) of the groove portion (2) forms a curvature having a curvature smaller than that of the aforementioned arch line. The shape of the bracket for orthodontic correction of the present invention is the same as that of the present invention. The bottom surface portion (9) of the groove portion (2) is formed into a curved shape which is different from the group M338644 of the plurality of teeth. The present invention is characterized in that the side wall (16) of the groove portion (2) is a concave portion in which the side surfaces of the central portion of the groove portion (2) form a concave shape, and The width of the groove is increased. 5 The new type of tooth row continues to use the bracket to make the bottom surface of the groove portion have a curved shape, and after inserting the arch line into the groove of the bracket, when the dentition moment is positive, the bow line is inserted in the rectangular shape. The entire area of the bottom surface of the groove can maintain the contact state. Moreover, since the shape of the torn curved surface is flattened at both ends, the bow line does not touch the two ends of the groove portion, and can equally press the tooth surface. The frictional resistance between the arch line and the bracket is adopted. Therefore, the bracket and the bow line are not damaged, and the pressing force of the entire tooth surface of the bracket can be formed. The simple illustration of the figure is the use of the new type of tooth column wall. Plan view of the bracket. 15 Fig. 2 is a cross-sectional view taken along line AA of Fig. 1. Fig. 3 is a B of Fig. 1 Fig. 4 is a plan view showing a bracket for orthodontic correction according to another embodiment. Fig. 5 is a plan view showing a plane 20 of the orthodontic bracket according to another embodiment. The figure shows the structure of the tooth row structure in which the bracket and the arch line are attached. C. The mode of application is the best mode for implementing the new type. The embodiment of the present invention will be described below with reference to the drawings. 3 8644 is a plan view of an embodiment of the bracket for dentition correction of the present invention. Fig. 2 is a cross-sectional view taken along line AA of Fig. 1 and Fig. 3 is a cross-sectional view taken along line B_B of Fig. 1. Fig. 1 is a view The rack 1 is a ceramic manufacturer having two sets of wings 3, which is called a twin bracket. 5 An inserting groove portion that is disposed in a concave shape while maintaining the archwire 4 is formed on the upper portion of the center portion of the bracket. That is, the slot. This bracket, like other single brackets, offers many types depending on the treatment method, treatment technique, and the like. The embodiment of the new type of bracket will be described on the premise that the bracket of the above shape is used. The bracket 1 is used for the incisors, the canines, the small molars, and the large teeth. The torque or the bow posture is different, and the shape is also different depending on the direction of the corrected tooth, and there are various brackets that match this. The basic structure of the bracket is configured to be inserted into the groove 2 of the archwire at the center, and the wing 3 is disposed on the side wall. Depending on the type of the bracket, it is also useful to arrange the hook in which the ligation member is locked to the wing 3. The underside of the bracket 1 forms a joint surface 5 that engages the teeth, and the joint surface 5 is followed by the tooth surface 6 by an adhesive. Since the basic structure and function of the body of the brackets are conventional, detailed descriptions thereof will be omitted. The present invention is directed to the groove shape of the bracket 1 thus constructed. As shown in Fig. 1, the groove portion 2 is fitted to the center portion of the bracket 1 so that the bow line 4 is moved in the direction of the arrow. In the central portion, the groove portion 2 is formed in the direction perpendicular to the insertion direction of the archwire 4 with respect to the groove portion 2 for inserting the archwire 4. The bracket 1 of Fig. 1 constitutes the wing 3 in a state of projecting from the central portion of the main body to the direction in which the insertion direction of the bow line 4 is inserted. The material of the bracket 为 is made of plastic or ceramic. In the present embodiment, before the ceramic is used, the bow line 4 is inserted into the groove portion 2 in the direction of the arrow. Wv line 4 9 M338644 After inserting into the groove 2, 'If the purple is formed by the ligation method, as shown by the imaginary line (see Fig. 3), the stainless steel ligature or the mold of the urethane (〇-ring) The ligation mechanism 8 fixes the archwire 4 to the correction. At this time, the wing mechanism 3 is wound around the wing 3, and is wound around the archwire 4, and the archwire 4 is pressed to the bottom surface of the groove 2 to be fixed. The method of ligation of the low-friction system (for example, the trademark of the Shenjing people) can also be locked. If this method is used, the friction can be further reduced. This fixing is changed depending on the condition of the teeth, the mounting condition of the bracket 1 such as the mounting angle, and the fixed state. The bracket i is mounted in a plurality of rows along the tooth row, and the rows of teeth 10 are arranged in a curved shape. Conventionally, even if the teeth are curved, the bottom surface 9 of the groove portion 2 of the bracket is linear. However, although the tooth surface 6 is round, it is not the same, and the structure of the tooth surface 6 varies from person to person. That is, when the plurality of brackets 1 are mounted in a circular shape along the tooth surface 6, the heights of the adjacent faces 6 are different from each other, and the position of the bracket 1 with respect to the tooth surface 6 is up and down and left and right. When the bottom surface of the groove portion 2 of the bracket 1 is linear, the bow line 4 is linearly arranged in the longitudinal direction on the bottom surface, and the two ends of the bottom surface 9 are in one-side contact, and the bracket 1 is strong in this portion. Press to the tooth surface 6. Also, when the bow line 4 is tightened, the brackets are slightly moved to each other. That is, when the one side is in contact with the bow line 4, the both end portions are pressed in the middle, and the bow line 4 20 is adjusted to pass over the groove portion 2, and is tightened while being moved, and a large frictional resistance is generated when moving. At this time, frictional resistance is generated between the bracket 1 and the bracket 1. When the frictional resistance is increased, there is a flaw in the bow line 4 and the bracket 1. In the present invention, the central portion of the bottom surface 9 has a slightly convex curved shape. The radius dimension s of this surface shape is the extent to which a gentle curve is drawn along the dentition. The radius of the curved surface shape s M3 3 8644 is more strictly different depending on the tooth surface 6, and the winding curvature is smaller than the bow line 4 and the average size is uniform. That is, the configuration in which the bracket 1 and the bow line 4 are arranged along the dentition is shown. Further, both end portions 10 of the groove portion 2 form a chamfered ridge of a r-shaped curved shape. This inverted 5 angle 11 is inserted into the archwire 4 to prevent single-sided contact when it is tightened. It is in the shape of an R which can prevent the damage of the both end portions 10. Not only the R shape but also the drawing, the both end portions 0 may be tapered to be flattened. In other words, the chamfers 11 of the both end portions 1 are formed in a shape of a gently inclined surface which is formed on the outer side. This chamfer 11 includes a bottom surface 9 of the groove portion 2 and a side surface portion 12 of the groove portion 2. By the fact that the 10 groove portions 2 are R-shaped, even if the tooth faces 6 are displaced from each other, the one-side contact of the both end portions 10 is less likely to occur. By adopting such a shape, even if it is a ceramic-hard material, the bracket 1 does not become pressed with concentrated stress, so that troubles such as damage of the bracket can be avoided. If the archwire 4 does not uniformly abut, as long as the archwire 4 particularly abuts against the central portion of the bottom surface 9, the central portion can be pressed against the tooth surface 6. This 15 means that when the bracket 1 is pressed by the archwire 4, the joint surface 5 is uniformly pressed to the tooth surface 6. In the fourth embodiment, the other embodiment is shown, and the curved shape of the bottom surface 9 is the same as that of Fig. 1, and the side surface 13 of the groove portion 2 is also formed in a curved shape which is developed from the central portion 14 along the two portions 15. This allows the bow 4 to be tilted to the bracket 1 as shown by the chain of the figure. Even if the plurality of brackets 稍微 are slightly offset from the tooth surface 6 in the direction of 20 degrees high, even if there is an angular deviation, it can be adapted, and at the same time, the bracket 1 can be installed in the up-and-down direction, the left-right direction or the tilt with respect to the tooth surface 6. . In still another embodiment, as shown in Fig. 5, the recessed portion 17 having a concave shape is formed on both side surfaces of the center portion of the side surface 16 of the bracket yoke portion 2, and the groove width 11 M3 3 8644 is increased. This is an example in which the bow line 4 does not contact the side surface of the center portion. If the side surface is flat, ^ when the bow line 4 is not placed in the bracket 1, there is also a case where only the center portion of the side surface is contacted. At this time, the bow line 4 is unstable to the one side of the bracket 1 and is unstable. In order to avoid this one-sided contact, only the central portion of the side surface is recessed, i.e., as the concave portion 17, the archwire 4 is not in contact. Thereby, the bow line 4 contacts only the side faces 16 at both end portions of the groove portion 2, so that the contact friction can be made small and stable. Fig. 6 is a view showing an example of the shape of the dentition and showing the semicircular shape of the lower dentition. Each tooth is configured in a standard state. Correct the dentition to form the dentition of this configuration. The bracket 1 is mounted for each tooth, and the groove portion 2 of the bracket is drawn in an arcuate shape and the bow line 4 is wound. For convenience, the dentition is divided into three groups, a group A of the front sharp teeth 20, 21, 22, a group A of the small molars 23, 24, and a group of the large molars 25, 26 of the front and the canine. C is configured. Since the dentition is bilaterally symmetrical, the group classification is limited to the right side of Fig. 6, and the left side is also the same. According to this, group A has 3 teeth, group 3 and [15 have 2 teeth. Mounting bracket! According to the groups a, B, and c, which are almost the same shape, the curved curvature of the bottom 9 is the same. The tight curvature of the archwire 4 wound along this tooth row is slightly different in groups A, B, and C. Therefore, the curved shape of the groove portion 2 of the bracket 1 is also the curvature along the bow line 4. The curvature of the groove portion 2 of the bracket 1 is smaller than the curvature of the state in which the curvature of the bow line 4 is wound, and the both end portions 1 of the 20 rows of the groove portions 2 are flattened. Thereby, the installation of the bow line 4 without frictional resistance can be achieved. If the curvature of the bracket 较 is smaller than the curvature of the bow line 4, that is, the position is slightly staggered, the mounting angle of the bracket 1 is slightly changed, and single-sided contact can also be avoided. The embodiment of the present invention has been described above, and the specific structure of the present invention is not limited to this example. 12 M338644 [Simple diagram of the diagram 3 Figure 1 is a plan view of the bracket for the new orthodontic correction. Fig. 2 is a cross-sectional view taken along line A-A of Fig. 1. Figure 3 is a cross-sectional view taken along line B-B of Figure 1. 5 Fig. 4 is a plan view showing the bracket for orthodontic correction according to another embodiment. - Fig. 5 is a plan view showing a bracket for orthodontic correction according to another embodiment. > Fig. 6 is an explanatory view showing a structure of a tooth row in which a bracket and an arch line are attached. 10 [Description of main component symbols] 1... Bracket 13... Side 2... Groove 14... Center part 3... Wing 15... Both end parts 4... Bow line 16... Side 5... Joint surface 17···recessed part 6...toothed surface 20···tooth 7...locking groove 21···tooth 8...Ligation mechanism 22···tooth 9...bottom 23...small molar 10... Both end portions 24... small molars 11... chamfers 25... large molars 12···side portions 26...large molars 13