保定牙科诊所

做牙齿修复，为什么说全瓷牙比烤瓷牙好

Why do you say that all porcelain teeth are better than porcelain teeth?

烤瓷牙是现在使用最多的牙体修复手段。烤瓷牙根据材料的不同又分为很多种，其中全瓷牙是一种近几年才开展的一种高科技的镶牙方法。很多人误以为全瓷牙就是烤瓷牙，二者没什么差别。但是事实上却并非如此，那么全瓷牙比烤瓷牙好在哪里呢？

Porcelain teeth are the most commonly used means of dental restoration. Porcelain teeth are divided into many kinds according to their different materials. Among them, all ceramic teeth are a high-tech dental technique developed in recent years. Many people mistakenly believe that all porcelain teeth are porcelain teeth, and the two are no different. But in fact, it is not so. Where is all ceramic teeth better than porcelain teeth?

烤瓷牙

Porcelain Teeth

烤瓷牙是将牙齿磨小后取印模，灌注石膏模型，然后在模型上制作一层约0.3-0.5mm厚的金属基底，再在其外面高温烤结上四层瓷粉。

The porcelain teeth are to wear the teeth into a model, and then cast a plaster model, and then make a layer of about 0.3-0.5mm thick metal base on the model, and then bake four layers of porcelain powder on the outside of the model.

全瓷牙

E-max

全瓷牙与烤瓷牙类似，将金属基底换成一层全瓷的透明支撑骨架，然后在它的外冠面烤上一层与天然牙色泽相近的瓷粉，最后粘结在牙齿上。

All porcelain teeth are similar to porcelain teeth. The metal substrate is replaced by a transparent support skeleton of all porcelain, and then a layer of porcelain powder similar to the natural tooth color is baked on its outer crown. Finally, it is bonded to the tooth.

做全瓷牙比烤瓷牙的优势：

The advantages of all porcelain teeth are compared with that of porcelain.

外形透明更像真牙

Transparent shape is more like true teeth

这是普通烤瓷牙很难达到的效果，因为普通烤瓷牙金属内冠的不透明，需用遮盖金属基底，影响修复体的透明度，使得烤瓷牙美容后有明显的虚假感，在牙颈部更有金属基底造成的“黑线”影响美观。全瓷牙则用良好的透明性与折光性而且高强度的内冠解决了这一缺陷，使牙颈部也能达到良好的美观效果。

This is a difficult effect of the ordinary porcelain teeth, because the opaque metal inner crown of the common porcelain teeth, the need to cover the metal base, influence the transparency of the restorations, make the porcelain teeth have a clear sense of false after the beauty of the tooth, and the "black line" caused by the metal base in the tooth neck is beautiful. All ceramic teeth have solved this defect with good transparency and refraction and high strength inner crown, so that the neck of the tooth can also achieve good aesthetic effect.

不会造成磨损

Will not cause wear and tear

烤瓷牙的硬度大于牙釉质，可能会造成对颌牙的磨损。而全瓷牙的硬度与牙釉质近似，不会对颌牙造成磨损。

The hardness of porcelain teeth is greater than that of enamel, which may cause tooth wear. The hardness of all ceramic teeth is similar to enamel and does not cause tooth wear.

维护牙龈健康

Maintenance of gingival health

部分烤瓷牙的金属，对牙龈有较严重的刺激，造成牙龈肿胀、出血，甚至有患者对贵金属也过敏；全瓷牙则基本没有发现敏感病例。

The metal of some porcelain teeth has a severe stimulation of the gums, resulting in gingival swelling and bleeding, and even the patient is allergic to precious metals; all porcelain teeth have not found sensitive cases.

内外冠结合

Internal and external coronal combination

金属和瓷的结合是烤瓷牙修复中比较薄弱的一个环节，这个环节经常可以见到瓷和金属剥离，露出灰黑的金属的情况。而全瓷牙则是内外冠都是瓷，瓷和瓷的结合不会出现脱落的情况。

The combination of metal and porcelain is a relatively weak link in the restoration of porcelain teeth. It is often seen that porcelain and metal are stripped to reveal the situation of gray and black metals. And all ceramic teeth are porcelain and porcelain, porcelain and porcelain will not fall off.

很多人都听过许多医院在进行核磁共振检查时，要求拆除口内金属牙冠，否则不予检查。其实金属牙冠对核磁共振是会产生一定的影响，金、铂合金、银、银汞合金等对于核磁共振的影响极小；纯钛产生的伪影也比较小，而钴铬合金、镍铬合金则对核磁共振具有较大的影响，而全瓷牙是非金属，不会产生影响。因此，暨大附属口腔专家建议，在选择烤瓷牙做口腔固定修复时，建议优先考虑全瓷修复，不得不使用金属冠桥时，则优先考虑贵金属（金合金、金铂合金等），其次是纯钛金属，最后才是钴铬、镍铬合金。

Many people have heard that many hospitals require the removal of metal crowns in the MRI examination, otherwise they will not be examined. In fact, the metal crown has a certain effect on nuclear magnetic resonance. Gold, platinum alloy, silver and silver amalgam have little effect on nuclear magnetic resonance, and the artifacts produced by pure titanium are also small, while cobalt and chromium alloy and nickel chromium alloy have great influence on nuclear magnetic resonance, while all porcelain teeth are non-metallic and will not affect them. Therefore, Jinan affiliated oral experts suggest that when choosing the fixed dental prosthesis for fixing the porcelain teeth, it is recommended to give priority to all porcelain restoration. When the metal crown and bridge have to be used, the precious metals (Jin Hejin, gold platinum alloy, etc.) are given priority, followed by pure titanium, and in the end it is cobalt chromium and nickel chromium alloy.