200803797 九、發明說明： 【發明所屬之技術領域】 本發明關於一種牙植體，詳言之，係關於一種具有鄰接 端凸出板（proximal plate-like projection)之牙植體。 【先前技術】 咬合力可分成垂直力和水平力。牙植體的垂直力是底部 處的壓縮力和側部處的剪切力。水平力是牙植體的傾斜 力，這意味著牙植體兩端受力最大且其兩端受力方向相 反’牙植體之中段部分具有一旋轉中心。 由於向鄰接端側的水平力係由鄰近的牙齒（或植體）共同 支援，所以此類力對牙槽骨（alVe〇lar b〇ne)的損害較小。 牙植體抓住骨頭以抵抗咬合力。因此，既要讓牙植體抓住 足夠的牙槽骨以供咬合力又要使牙槽骨免於被破壞，這是 牙植體設計的基本和最重要的考慮因素。 由於鈦牙植體的出現，很多牙植體繼續利用自然牙齒之 根形狀。但事貫上，自然牙齒的支撐機構與牙植體的支撐 機構不同。自然牙齒藉由韋刃帶懸在骨頭中，植體”固定，，到 骨頭。模仿自然牙齒的根形狀沒有意義。 參看圖1，習知牙植體80包括中心部8 1和複數個翅片 83。中心部8 1爲漸縮形圓柱。牙植體8〇的中心部8丨的錐度 會降低抵抗垂直力和水平力的能力。且如臨床上所見，牙 槽骨的更深部分總是具有牙植體的充足空間。很多目前的 牙植體的另一缺陷在於螺紋或翅片83。該螺紋或翅片83基 本上爲從中心部8 1凸出的水平凸出物。翅片（水平凸出物） 112063.doc 200803797 以其較大地不疋爲水平力配備而是爲垂直力配備的方式抓 住月頭k可解釋爲什麼上領骨中的牙植體的成功率總是 比下領骨中的牙植體的成功率低。因為上頜骨中的牙i體 比下頜骨中的牙植體接收更多水平力。 美國專利第4,73M23號揭示一種牙植體，其被报多牙醫 • 認、爲是最好的牙植體系統之-，但同樣具有上文所提及的 ‘ 缺點。與其他牙植體相同，骨頭的入口是最易損壞的。習 ，々牙植體認真處理了該問題。根據其手冊，f知牙植體植 入牙槽脊下方1 mm〜2 mm。稍後，移除一些骨頭，且支柱 體和牙对連接到習知牙植體。但如臨床上所觀察，最後骨 頭曰退回到習知牙植體的肩部。儘管牙植體的材料與支柱 體的材料相同，但支柱體無法骨整合。可能存在支柱體的 微旋轉。骨中的未經骨整合的柱是有害細菌的高速通道。 在二&況下，骨頭退化繼續，且牙植體暴露是不可避免 的。絲路常在水平力承受側上。此類暴露會讓患者感到 困擾也是牙醫要面臨的考驗。 【發明内容】 本發明關於-種牙植體。本發明之牙植體包含··中心 部、至少一個鄰接端凸出板和至少一個翅片。該中心部具 有第一部分、第二部分、水平方向和垂直方向。該鄰接端 凸出板沿水平方向從中心部的該第一部分凸出，且沿垂直 方向延伸。翅片沿水平方向從中心部的該第二部分凸出。 本發明的牙植體著重於通常被其他牙植體系統忽略的水 平力。藉由鄰接端凸出板和口腔側與舌側上的空隙的設 112063.doc 200803797 計，本發明之牙植體可更正確地處理咬合力。 β本發明之鄰接端凸出板在水平力能抓住更多骨頭，且免 受大多數垂直力。鄰接端凸出板從圓柱體朝遠心侧或近心 側方向產生。相對於鄰接端凸出板水平處之口腔側和舌 側，其不具有鄰接端凸出板。因爲口腔和舌骨板總是較薄 . J•還爲彳植人學中的弱.點，所以骨板最好不要承受太多 力。 ^ 本發明之牙植體進一步包含設置在中心部的第一部分上 的頸部。空隙和頸部爲骨板提供更多空間且將更少的力傳 送給該骨板。因爲頸部暴露的機會減少，本發明之牙植體 爲薄板提供完整的空間，該薄板不受任何凸出物干擾，且 會有助於滿足審美需求。藉由充足的骨結構圍繞於該板狀 凸出物，本發明之牙植體可有效地處理水平力。 【實施方式】 在描述本發明的牙植體前，必須清楚地界定一些術語。 ^一/術語’’下’’與重力無關，其表示在更深的骨頭中，且”上”表 不其罪近牙齦或牙冠。且”口腔”表示口腔或面部，，，舌，，表 不舌或顎。”垂直”表示在連同牙植體的縱軸一起的方向 上’”水平’’表示在與”垂直"相垂直的方向上。 參看圖2a、2b、2c、2d、2e和2f，其顯示根據本發明第 一實施例的牙植體。將牙植體2命名爲A類型牙植體，本發 月之牙植體2接收的水平力會比垂直力（來自咬合）多。通常 A頭型牙植體會用於上領骨前部。參看圖3a、3b、3c、3d 和3e，其顯示根據本發明第二實施例的牙植體。將牙植體 112063.doc 200803797 3命名爲B類型牙植體，本發明之牙植體3會接收更多垂直 力。 本發明的牙植體通常爲圓柱形且非漸縮植體’俾利於連 接假牙的支柱體。 再次參看圖2a到2f，本發明之牙植體2包含：中心部 • 60、至少一個上鄰接端凸出板11、至少一個翅片20和至少 • 一個下鄰接端凸出板30。中心部60具有第一部分61、第二 邛刀62第二部分63、水平方向和垂直方向。在本實施例 中，中心部60爲圓柱形之形狀且不漸縮。 中。邛60進一步包含設置在第一部分61上的頸部1〇。頸 邛10的间度約爲0.5 mm到3.0 mm。頸部1〇具有邊緣1〇1， 其具有一些圓度，且相對於該牙植體的縱軸，該邊緣1〇ι 係朝内及朝上。如果機械上許可的話，那麼頸部丨〇最好盡 可月b乍w亥頒部10具有一輪緣102，且頸部1〇上的輪緣1〇2 會較窄。對朝口腔側的輪緣1〇2進行修飾以模擬口腔牙齦 、 的曲率。參看圖2a和4，經修飾之輪緣102從鄰接端側開始 向下到口腔側，且較佳為凹形。經修飾之輪緣102會允許 外科醫生在不擔心口腔側上的牙植體的暴露的情況下，不 • 將植體埋入骨頭的深處。且經修飾之輪緣102較佳地匹配 不對稱的被吸收牙脊。經修飾之輪緣1〇2的深度在〇.5麵 到2 mm之間。 在頸部10下的是上鄰接端凸出板"及口腔側或舌側空隙 上郇接螭凸出板11沿水平方向從中心部的第一部分 並^垂直方向延伸。在實施例中，複數個上鄰接 112063.doc 200803797 端凸出板設置於中心部60的第一部分61上。較佳地，上鄰 接端凸出板11在上邊緣處全面切除，以形成經切除的上邊 緣 111 〇 乡看圖5a 5b和5c，其顯示根據本發明的上鄰接端凸出 板的不同配置之上視圖。上板狀凸出物從中心部⑼産生， • 如圖5a中所不’與中心部60的切線約成90度，或如圖51)和 • ®5C中所示，成容易製造且仍可爲了水平力而抓住很多骨 ； 頭的凸出角。較佳地上鄰接端凸出板不要延伸到口腔或舌 邊界的切線之外。對於水平力上鄰接端凸出板能較佳地抓 住骨頭，且免受垂直力。此類設計可防止過載。鄰接端凸 出板與鄰近該鄰接端凸出板的鄰近鄰接端凸出板約呈平 行。 再次參看圖2a到2f，上鄰接端凸出板丨丨設置在第一部分 61的；#接端侧上，且第_部分61具有口腔側空隙12或舌側 空隙12 ’其兩者不具有上鄰接端凸出才反，口腔側空隙或舌 (/ 側空隙12分別設置在第一部分61的口腔側和舌側上。亦 即，相對於上鄰接端凸出板〗丨之口腔側和舌側之相對位置 上，不具有上鄰接端凸出板。空隙12爲突起。因爲口腔和 • 舌骨板總是較薄且也是牙植入學中的弱點，所以該板^好 不要承受太多力。與頸部10連接，空隙12和頸部1〇爲骨板 提供更多空間且將更少的力傳送給該板。 本發明的牙植體藉由鄰接端凸出板u來有效地處理水平 力，該鄰接端凸出板11由充足的骨結構所圍繞，因此減少 了骨頭退化的可能性。具有上鄰接端凸出板的第一部分 112063.doc 200803797 的長度約爲中心部60的總長度的1 /4到2/5。因爲水平力在 中〜部的中間部分中最少感覺到，所以鄰接端凸出板不出 現在中心部60的中間部分。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental implant, and more particularly to a dental implant having a proximal plate-like projection. [Prior Art] The bite force can be divided into a vertical force and a horizontal force. The vertical force of the dental implant is the compressive force at the bottom and the shear force at the side. The horizontal force is the tilting force of the dental implant, which means that the ends of the dental implant are most stressed and the force directions at both ends are opposite. The middle portion of the dental implant has a center of rotation. Since the horizontal force to the adjacent end side is supported by adjacent teeth (or implants), such forces have less damage to the alveolar bone (alVe〇lar b〇ne). The dental implant grasps the bone to resist the bite force. Therefore, it is necessary to allow the dental implant to grasp enough alveolar bone for the bite force and to protect the alveolar bone from being damaged. This is the basic and most important consideration for the design of the dental implant. Due to the advent of titanium dental implants, many dental implants continue to take advantage of the root shape of natural teeth. However, in practice, the support mechanism of natural teeth is different from that of dental implants. The natural tooth is suspended in the bone by the Weaver blade, and the implant is "fixed, to the bone. It is meaningless to imitate the root shape of the natural tooth. Referring to Figure 1, the conventional implant 80 includes a central portion 81 and a plurality of fins. 83. The central portion 8 1 is a tapered cylinder. The taper of the central portion 8 of the dental implant 8 会 reduces the ability to resist vertical and horizontal forces. As seen clinically, the deeper portion of the alveolar bone always has Sufficient space for dental implants. Another drawback of many current dental implants is the thread or fin 83. The thread or fin 83 is essentially a horizontal projection that protrudes from the central portion 81. Protruding) 112063.doc 200803797 The large-scale force is equipped with a horizontal force to grasp the head of the head k to explain why the success rate of the dental implant in the upper collar is always lower than the lower collar. The success rate of dental implants in the bone is low because the dental body in the maxilla receives more horizontal force than the dental implant in the mandible. U.S. Patent No. 4,73M23 discloses a dental implant that is reported more Dentist • recognizes that it is the best dental implant system - but also has The shortcomings mentioned in the article. Like other dental implants, the entrance to the bone is the most vulnerable. The haw implants have carefully dealt with this problem. According to their manual, the implants are implanted into the alveolar ridge. 1 mm to 2 mm below. Later, some bones were removed, and the pillars and teeth were attached to the conventional dental implants. However, as observed clinically, the bones eventually returned to the shoulders of the conventional dental implants. Although the material of the dental implant is the same as that of the pillar body, the pillar body cannot be osseointegrated. There may be micro-rotation of the pillar body. The non-ossified column in the bone is a high-speed passage of harmful bacteria. In the case of the second & The bone degradation continues, and the dental implant exposure is unavoidable. The silk path is often on the horizontal force bearing side. Such exposure can be a problem for the patient and a test for the dentist. [Invention] The dental implant of the present invention comprises a central portion, at least one abutting end projecting plate and at least one fin. The central portion has a first portion, a second portion, a horizontal direction and a vertical direction. The abutting end is convex. Horizontal along the board Projecting from the first portion of the central portion and extending in a vertical direction. The fins project horizontally from the second portion of the central portion. The dental implant of the present invention focuses on levels that are generally ignored by other dental implant systems. The dental implant of the present invention can more accurately handle the bite force by the provision of the abutment projection plate and the gap between the oral side and the lingual side. The dental implant of the present invention can more correctly handle the bite force. The horizontal force can capture more bones and is protected from most vertical forces. The abutting end bulge plate is generated from the cylinder toward the telecentric side or the proximal side. The oral side and the lingual side at the level of the convex plate relative to the abutting end It does not have a convex plate at the abutment end. Because the mouth and the tongue plate are always thin. J• is also a weak point in the study, so it is best not to bear too much force on the bone plate. ^ The dental implant of the present invention further comprises a neck disposed on the first portion of the central portion. The voids and neck provide more space for the bone plate and transmit less force to the bone plate. Because of the reduced chance of neck exposure, the implant of the present invention provides ample space for the sheet which is undisturbed by any protrusions and which helps to meet aesthetic needs. The dental implant of the present invention can effectively handle horizontal forces by surrounding the plate-like projections with sufficient bone structure. [Embodiment] Before describing the dental implant of the present invention, some terms must be clearly defined. ^一/词''下下' is not related to gravity, it is expressed in deeper bones, and "upper" does not sin near the gums or crowns. And "oral" means the mouth or face,,, tongue, and the tongue or the tongue. "Vertical" means that the ''horizontal'' in the direction along with the longitudinal axis of the dental implant is in a direction perpendicular to the "vertical". Referring to Figures 2a, 2b, 2c, 2d, 2e and 2f, a dental implant according to a first embodiment of the present invention is shown. The dental implant 2 is named as a type A dental implant, and the dental implant 2 of this month receives more horizontal force than the vertical force (from the occlusion). Usually the A-head implant will be used on the front of the upper collar. Referring to Figures 3a, 3b, 3c, 3d and 3e, a dental implant according to a second embodiment of the present invention is shown. The dental implant 112063.doc 200803797 3 is named as a type B dental implant, and the dental implant 3 of the present invention receives more vertical force. The dental implants of the present invention are generally cylindrical and non-tapered implants that facilitate the attachment of the prosthetic posts. Referring again to Figures 2a through 2f, the dental implant 2 of the present invention comprises: a central portion 60, at least one upper abutment end projection plate 11, at least one fin 20 and at least one lower abutment end projection plate 30. The center portion 60 has a first portion 61, a second portion 63 of the second file 62, a horizontal direction and a vertical direction. In the present embodiment, the central portion 60 has a cylindrical shape and does not taper. in. The crucible 60 further includes a neck 1〇 disposed on the first portion 61. The neck 邛 10 has a spacing of approximately 0.5 mm to 3.0 mm. The neck 1 has an edge 1〇1 which has some roundness and which is inwardly and upwardly with respect to the longitudinal axis of the dental implant. If mechanically permitted, then the neck 丨〇 is best to have a rim 102 and the rim 1 〇 2 on the neck 1 会 will be narrower. The rim 1〇2 toward the oral side was modified to simulate the curvature of the oral gums. Referring to Figures 2a and 4, the modified rim 102 is from the abutting end side down to the oral side and is preferably concave. The modified rim 102 will allow the surgeon to bury the implant deep into the bone without fear of exposure to the dental implant on the oral side. And the modified rim 102 preferably matches the asymmetric absorbed ridge. The depth of the modified rim 1〇2 is between 〇.5 faces and 2 mm. Under the neck portion 10 is an upper abutting end projecting plate " and an oral side or lingual side space. The upper side of the swelled convex plate 11 extends in a horizontal direction from the first portion of the central portion and perpendicularly. In an embodiment, a plurality of upper abutments 112063.doc 200803797 end projections are disposed on the first portion 61 of the central portion 60. Preferably, the upper abutting end projections 11 are completely cut away at the upper edge to form the cut-out upper edge 111. Figures 5a 5b and 5c show different configurations of the upper abutment projections according to the present invention. Above view. The upper plate-like projections are produced from the central portion (9), • as shown in Fig. 5a, which is approximately 90 degrees from the tangent to the central portion 60, or as shown in Fig. 51) and • ® 5C, which are easy to manufacture and still Grab a lot of bone for horizontal force; the convex angle of the head. Preferably, the upper abutment projections do not extend beyond the tangent to the mouth or tongue boundary. For the horizontal force, the abutting end projecting plate can better grasp the bone and is protected from vertical force. This type of design prevents overload. The abutting end projections are approximately parallel to the adjacent abutting projections adjacent the abutting end projections. Referring again to Figures 2a through 2f, the upper abutment end tabs are disposed on the #接端 side of the first portion 61, and the first portion 61 has an oral side void 12 or a lingual void 12' which does not have The abutting ends are convex, and the oral side voids or the tongues (/the side voids 12 are respectively disposed on the oral side and the lingual side of the first portion 61. That is, the oral side and the lingual side of the protruding plate with respect to the upper abutting end. In the relative position, there is no upper abutting end convex plate. The gap 12 is a protrusion. Since the oral cavity and the hyoid plate are always thin and also a weak point in dental implant, the plate does not bear too much force. Connected to the neck 10, the void 12 and the neck 1〇 provide more space for the bone plate and transfer less force to the plate. The dental implant of the present invention is effectively treated by abutting the end convex plate u The horizontal force, the abutting end projecting plate 11 is surrounded by a sufficient bone structure, thereby reducing the possibility of bone degradation. The length of the first portion 112063.doc 200803797 having the upper abutting end projecting plate is approximately the total length of the central portion 60 Degree of 1/4 to 2/5. Because the horizontal force is in the middle part of the middle part Least felt, the projecting plate adjacent to the end portion of the center does not appear in the intermediate portion 60.
鄰接端凸出板包含至少一個定位鄰接端凸出板112，該 定位鄰接端凸出板112延伸到翅片2〇的外徑外。因此，定 位鄰接端凸出板112的寬度大於鄰接端凸出板丨丨的寬度。 在本實施例中，設置在鄰接端侧上的兩個定位鄰接端凸出 板112，用於定位牙植體2。且在外科手術後，會更容易以 正確的方向將牙植體保持在骨頭中。 此外，鄰接端凸出板包含至少—個牵引鄰接端凸出板 112。在本貫施例巾’定位鄰接端凸出板係爲牵引鄰接端 凸出板。牵引鄰接端凸出板112的長度高於鄰接端凸出板 11的長度，且牽引鄰接端凸出板112延伸到頸部。牵引 鄰接端凸出板112具有牵引孔116，用於使一牵引裝置⑽ 未示出)能拉出該牙植體2。此外，牽引鄰接端凸出板可具 有牵引槽，用於使-牵引裝置能拉出該牙植體。 鄰接端凸出板1 1句合5 Vrn ^ k 至> 一個普通鄰接端凸出板113。 在實施例中’普通鄰接端凸出板113的長度低於牵引鄰接 端凸出板112的長度；且普通鄰接端凸出板1U的寬度小於 疋位一接端凸出板〗12的寬度。亦即，普通鄰接端凸出板 113的寬度等於翅片2〇的外徑。 鄰接端凸出板Η包含至少—個小鄰接端凸出板…。在 :施：中’小鄰接端凸出板114的長度低於普通鄰接端凸 度’·且小鄰接端凸出板⑴的寬度小於普通鄰 lJ2063.doc 200803797 接端凸出板113的寬度。 從牽引鄰接端凸出板U2 ’且鄰接端凸出板11的寬 鄰接端凸出板114逐漸變 因此’鄰接端凸出板U的長度 到小鄰接端凸出板114逐漸降低 度從定位鄰接端凸出板112到小 t鄰接端凸出板對應於牙植體的縱軸具有-角度。在第 一實施例中’板狀凸出物的該角度爲❹度。然而，如圖6中 所示’鄰接端凸出板的角度可在0度到45度之間。亦即， 鄰接端凸出板11具有在〇度到45度之間的傾斜角。 與鄰接端凸出板11鄰接，翅片2 — Α /σ水十方向從中心部60 的弟一部分62凸出。在實施例中 J甲複數個翅片成圈狀設置 在中心部60的第二部分62 όίΜ用、惠., 丨刀2的週邊上。翅片20不漸縮。具有 翅片的第二部分62的長唐的 幻长度、，勺4中心部60總長度的1/5到 1/2 〇 下鄰接端凸出板30設置在中心部6〇的第三部分63上。具 有下鄰接端凸出板的第三部分63的長度約爲中心部總長 度的1/4到2/5。在本實施例中，建議下鄰接端凸出板的凸 出角與中心部60的切線垂直。下鄰接端凸出板％具有經切 除的下邊緣301。在中心部60的底部31附近，下鄰接端凸 出板30的邊緣經切除以匹配骨牙槽（b〇ny s〇cket)的底部； 即匹配鑽頭的形狀。 中〜部60進一步包含底部31和井13。底部31爲平整。井 13係連接到支柱體並在中心部6〇的頂部具有開口。 參看圖3a、3b、3c、3d和3e，本發明第二實施例之牙植 11 112063.doc 200803797 體3包含··中心部7〇、至少一個鄰接端凸出板“和至少一 個翅片50。中心部7〇具有第一部分71、第二部分^、水平 方向和垂直方向。中心部7〇進一步包含設置在第一部分η 上的頸部40。第二實施例的頸部4〇與第一實施例的頸部μ 類似。但此處的頸部40更短。頸部4〇包含輪緣4〇ι。輪緣 4〇1爲平整或經較少修飾。頸部4()的長度在ο」職到2麵 之間，且S議經修部輪緣的深度爲〇5咖社2咖。 鄰接端凸出板41沿水平方向從中心、部7()的第—部分？！凸 出，並沿垂直方向延伸。鄰接端凸出板41和口腔側盘舌側 上的空隙42也與第一實施例中的先前描述類似。但比率不 同。具有鄰接端凸出板41的第—部分71的長度約爲中心部 7〇的總長度的1/6到2/5。定位鄰接端凸出板和牵引鄰接端 凸出板4 12與第一實施例中之描述類似。 翅片50沿水平方向從中心部7()的第二部分72凸出。中心 部70進-步包含底部51和井43。翅片5〇在不縮短其直徑的 前提下向下延續到底部51。底部51爲凹形。由於底部處的 骨頭接收很多壓縮力’凹形底部51可分散該力。這對且有 =直徑的短的牙植體來說尤爲重要。如果任何更深的長度 疋重要的’那麼需要專門設計鑽頭來對骨牙槽的底部進行 惟上述實施例僅為說明本發明之原理及其功效，而非用 以限制本發明。因此’習於此技術之人士對上述實施例進 行修改及變化仍不脫本於明夕牲& 明之楕神。本發明之權利範圍應 如後述之申請專利範圍所列。 " 112063.doc -12- 200803797 【圖式簡單說明】 圖1是習知之牙植體示意圖。 圖2a是根據本發明第一實施例的牙植體的鄰接端側正視 圖。 圖2b疋根據本發明第一實施例的牙植體的口腔側正視 圖。 圖2c是根據本發明第一實施例的牙植體的向下立體示意 圖。 圖2d是根據本發明第一實施例的牙植體的俯視平面圖。 圖2e是根據本發明第一實施例的牙植體的向上立體示意 圖。 圖2f顯不根據本發明第一實施例癒合後的牙植體。 圖3a是根據本發明第二實施例的牙植體的鄰接端側正視 圖。 圖3b是根據本發明第二實施例的牙植體的口腔側正視 圖。 圖疋根據本發明第二實施例的牙植體的向下立體示意 圖。 〜 圖3d疋根據本發明第二實施例的牙植體的俯視平面圖。 圖3e疋根據本發明第二實施例的牙植體的向上立體示意 圖。 圖4是根據本發明經修飾頸部的局部放大示意圖。 0 5和5<：；疋鄰接端凸出板的不同配置的俯視平面 圖0 112063.doc 13- 200803797 圖6是具有傾斜角的鄰接端凸出板的牙植體的鄰接端側 正視圖。 【主要元件符號說明】 2 本發明第一實施例之牙植體 3 本發明第二實施例之牙植體 10 頸部 11 i鄰接端凸出板 12 口腔側或舌側空隙 13 井 20 翅片 30 下鄰接端凸出板 31 底部 40 頸部 41 #接端凸出板 43 井 50 翅片 51 底部 60 中心部 61 第~部分 62 第二部分 63 第三部分 70 中心部 71 第一部分 72 第二部分 112063.doc -14- 200803797 80 81 83 101 102 111 112 113 114 116 301 401 412 習知牙植體 中心部 翅片 邊緣 輪緣 上邊緣 定位或牽引鄰接端凸出板 普通鄰接端凸出板 小鄰接端凸出板 牵引孔 下邊緣 輪緣 定位或牵引鄰接端凸出板The abutting end projections include at least one locating abutment projections 112 that extend beyond the outer diameter of the fins 2''. Therefore, the width of the positioning abutting end projecting plate 112 is larger than the width of the abutting end projecting platen. In the present embodiment, two positioning abutting end projecting plates 112 are provided on the abutting end side for positioning the dental implant 2. And after surgery, it is easier to keep the implant in the bone in the right direction. In addition, the abutting end projections include at least one of the traction abutment projections 112. In the present embodiment, the locating abutting end projecting plate is a traction abutting end projecting plate. The length of the traction abutment end projection plate 112 is higher than the length of the abutment end projection plate 11, and the traction abutment end projection plate 112 extends to the neck portion. The traction abutment projections 112 have traction holes 116 for enabling a traction device (10) not to be pulled out of the dental implant 2. In addition, the traction abutment projections can have traction slots for enabling the traction device to pull out the dental implant. The abutting end projecting plate 1 1 sentence 5 Vrn ^ k to > a common abutting end projecting plate 113. In the embodiment, the length of the ordinary abutting end projecting plate 113 is lower than the length of the projecting abutting end projecting plate 112; and the width of the ordinary abutting end projecting plate 1U is smaller than the width of the pinch-end end projecting plate 12. That is, the width of the ordinary abutting end projecting plate 113 is equal to the outer diameter of the fin 2''. The abutting end projecting plate includes at least one small abutting end projecting plate. In the application: the length of the small abutting end projecting plate 114 is lower than that of the ordinary abutting end and the width of the small abutting end projecting plate (1) is smaller than the width of the ordinary adjacent lJ2063.doc 200803797 end protruding plate 113. The convex abutting plate U2' is pulled from the abutting end and the wide abutting end of the abutting end projecting plate 11 is gradually deformed so that the length of the abutting end projecting plate U is gradually reduced to a small abutting end convex plate 114 from the positioning abutment The end projecting plate 112 to the small t abutting end projecting plate has an angle corresponding to the longitudinal axis of the dental implant. In the first embodiment, the angle of the 'plate-like projections is the twist. However, as shown in Fig. 6, the angle of the abutting end projecting plate may be between 0 and 45 degrees. That is, the abutting end projecting plate 11 has an inclination angle of between about 45 degrees. Adjacent to the abutting end projecting plate 11, the fins 2 - Α / σ water ten directions protrude from the portion 62 of the center portion 60. In the embodiment, a plurality of fins of the J-piece are arranged in a loop shape on the periphery of the second portion 62 of the center portion 60, 惠ίΜ, 丨, 丨. The fins 20 do not taper. The length of the long portion of the second portion 62 having the fins, 1/5 to 1/2 of the total length of the central portion 60 of the spoon 4, and the abutting end projecting plate 30 of the lower end portion are disposed at the third portion 63 of the center portion 6A. on. The length of the third portion 63 having the lower abutting end projections is about 1/4 to 2/5 of the total length of the center portion. In the present embodiment, it is recommended that the convex angle of the lower abutting convex plate is perpendicular to the tangent of the central portion 60. The lower abutment end projection plate % has a cut lower edge 301. Near the bottom 31 of the central portion 60, the edge of the lower abutment end projection 30 is cut to match the bottom of the bone socket; that is, to match the shape of the drill bit. The middle portion 60 further includes a bottom portion 31 and a well 13. The bottom 31 is flat. The well 13 is connected to the pillar body and has an opening at the top of the center portion 6〇. Referring to Figures 3a, 3b, 3c, 3d and 3e, the dental implant of the second embodiment of the present invention 11 112063.doc 200803797 The body 3 comprises a central portion 7〇, at least one abutting end projecting plate "and at least one fin 50" The central portion 7 has a first portion 71, a second portion ^, a horizontal direction, and a vertical direction. The central portion 7 further includes a neck portion 40 disposed on the first portion η. The neck portion 4 of the second embodiment is first The neck of the embodiment is similar, but the neck 40 here is shorter. The neck 4〇 contains the rim 4〇. The rim 4〇1 is flat or less modified. The length of the neck 4() is ο"The position between the two sides, and the depth of the sect of the S-repaired section is 〇5 咖社2 咖. The abutting end projecting plate 41 is horizontally oriented from the center, the first portion of the portion 7()? ! Protruding and extending in the vertical direction. The abutment end projections 41 and the gap 42 on the oral side flank side are also similar to the previous description in the first embodiment. But the ratios are different. The length of the first portion 71 having the abutting end projecting plate 41 is about 1/6 to 2/5 of the total length of the center portion 7〇. Positioning the abutting end projecting plate and the pulling abutting end projecting plate 4 12 is similar to that described in the first embodiment. The fin 50 protrudes from the second portion 72 of the center portion 7 () in the horizontal direction. The center 70 step-by-step includes a bottom 51 and a well 43. The fin 5〇 continues down to the bottom 51 without shortening its diameter. The bottom 51 is concave. Since the bone at the bottom receives a lot of compressive force, the concave bottom 51 disperses the force. This is especially important for short dental implants with a diameter of =. If any of the deeper lengths are important, then the drill bit is specifically designed to be performed on the bottom of the bone socket. However, the above embodiments are merely illustrative of the principles of the invention and its effects, and are not intended to limit the invention. Therefore, those skilled in the art have made modifications and changes to the above-described embodiments without departing from the illusion of the Ming Dynasty. The scope of the invention should be as set forth in the appended claims. " 112063.doc -12- 200803797 [Simplified Schematic] FIG. 1 is a schematic view of a conventional dental implant. Fig. 2a is a front elevational side elevational view of a dental implant in accordance with a first embodiment of the present invention. Fig. 2b is a front elevational view of the dental implant according to the first embodiment of the present invention. Fig. 2c is a downward perspective view of a dental implant according to a first embodiment of the present invention. Figure 2d is a top plan view of a dental implant in accordance with a first embodiment of the present invention. Fig. 2e is an upward perspective view of a dental implant according to a first embodiment of the present invention. Fig. 2f shows the dental implant after healing according to the first embodiment of the invention. Fig. 3a is a front elevational side elevational view of a dental implant in accordance with a second embodiment of the present invention. Fig. 3b is an ortho-front elevational view of a dental implant in accordance with a second embodiment of the present invention. Figure 2 is a downward perspective view of a dental implant according to a second embodiment of the present invention. ~ Figure 3d is a top plan view of a dental implant in accordance with a second embodiment of the present invention. Fig. 3e is an upward perspective view of a dental implant according to a second embodiment of the present invention. 4 is a partial enlarged schematic view of a modified neck in accordance with the present invention. 0 5 and 5 <:; top plan view of different configurations of the abutting end projections Fig. 0 112063.doc 13- 200803797 Fig. 6 is a front end side elevational view of the dental implant with abutting end projections having inclined angles. [Major component symbol description] 2 Dental implant 3 of the first embodiment of the present invention Dental implant 10 of the second embodiment of the present invention Neck 11 i abutting end convex plate 12 Oral side or lingual space 13 Well 20 Fin 30 lower abutment end projection plate 31 bottom portion 40 neck 41 #terminal end projection plate 43 well 50 fin 51 bottom portion 60 center portion 61 to portion 62 second portion 63 third portion 70 center portion 71 first portion 72 second Portion 112063.doc -14- 200803797 80 81 83 101 102 111 112 113 114 116 301 401 412 Conventional dental implant center fin edge rim upper edge positioning or traction abutment end bulge plate normal abutment end bulge plate small Adjacent end protruding plate traction hole lower edge rim positioning or traction abutting end protruding plate
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