露不出上排牙齒｜EXPOSURE PROBLEM 矯正露牙不足

『有時我像個翻譯者，透過齒列的排列，傳達患者對外觀要求的感受。而這翻譯的力量給予人自然而又深刻的完美印象。』 -Dr. CL Yeh

"Sometimes I act like a translator, orthodontic treatment provides what they really want. However, this process is so powerful and natural, which gives the perfect facial language." -Dr. Yeh 

    牙齒露不出來就無法展現燦爛的微笑與自信。造成露不出牙齒的原因可以是上顎前牙過高，下顎骨過長，咬合平面過於上彎，矯正失誤、整形手術等很多原因。

    而以下案例由cephalometric x ray 可以看出其上顎前牙非常的高，以致嘴唇開口較靠近下顎前牙。所以說話時微笑的動態情況，幾乎是看不到上排牙齒的。

    If the tooth exposure is not enough, we won't be able express confidential smile. And this is due to the wrong position of upper incisor or the length of lower jaw, occlusal plane problem, mistake of orthodontic treatment or failure of plastic surgery.

    From the following cephalometric x ray, you can easily notice the upper teeth is too high so that the opening of mouth is close to the lower teeth instead. Therefore, when the patient talk, the upper teeth almost can't be seen.

    我們藉由下排齒列的適度下移，創造出的空間，再讓上排牙齒漸漸下來。咬合平面的適度順時鐘旋轉，更讓臉型有了全新的表情。


    We make the clockwise ration of the bottom teeth to create more space, so the upper teeth can go down. Making the smile and the face more than appropriate.

    露牙不足的牙齒排列是非常彎曲與傾斜的。由側方看去，牙脊的排列矯正醫師稱其為 curve of spee。 牙脊的排列在矯正後幾乎成ㄧ直線，優雅的曲線除了好看以外，咬合的功能，尤其是小臼齒與前牙區的接觸，可以有ㄧ個更適當更平衡的位置。

    The tooth alignment of less tooth exposure is usually very curved and tilted. From the lateral view, we can notice the alignment of teeth will become more straight. In orthodontics, we call this curve of Speed. Actually, when the cure become more straight, instead of tilting, the contact of upper and lower jaw will be better. This will create more balanced and beautiful bite position.