What are the advantages and disadvantages of fixed dentures?

Although teeth are very small organs, they play a very important role in the human body. Teeth can protect the human mouth, chew food, and assist in pronunciation, etc. However, due to some accidents in daily life, the human teeth may be injured or even fall off. This situation has a great impact on the human body. Fixed dentures can be used to repair them. So what are the advantages and disadvantages of fixed dentures?

Advantages and disadvantages of fixed dentures:

Fixed denture restoration has both advantages and disadvantages. The advantages of fixed denture restoration include: 1) High chewing efficiency. Fixed dentures are bonded to the adjacent teeth on both sides and have the support of the adjacent teeth on both sides, so the chewing efficiency is higher. 2) Comfortable. Fixed dentures do not have the base and clasps (hooks) of removable dentures, so they are more comfortable and do not cause any foreign body sensation. 3) Beautiful. Because there are no metal clasps, fixed dentures will be more beautiful as long as porcelain or all-ceramic materials are used.

The disadvantages of fixed denture restoration include: 1) Grinding away more healthy teeth. Fixed denture restoration requires making full crowns on the adjacent teeth on both sides, and a lot of tooth tissue is removed. Especially when the adjacent teeth on both sides are healthy teeth with pulp (dental nerves), the damage to the adjacent teeth on both sides is very great, which is a pity. Although the appearance was finally restored with an artificial crown, the integrity of the tooth was destroyed after all. 2) Multiple teeth connected together. Fixed denture restoration is like building a bridge, where the piers and the bridge deck are connected together. Especially when multiple teeth are missing, the fixed denture will be very long, with many teeth connected together. The disadvantages of having multiple teeth connected together are: ① As long as there is a problem with one tooth, the entire tooth needs to be removed for repair. The more teeth connected together, the more difficult it is to remove and the greater the loss. ② It is not easy to detect a loose crown or tooth because other teeth are not loose and the fixed dentures glued together will not be loose either. If one end of a fixed denture is loose, it will tend to swing and sink, and the other end will be subjected to a large lever force. It will not be discovered until other teeth are loose. At this point the problem is already very serious and these loose teeth may have to be extracted, so that the original one missing tooth becomes three or even more missing teeth. ③Multiple teeth are connected together and cannot be cleaned with dental floss, so there will be blind spots in some places. ④ Multiple teeth connected together are not as beautiful as individual teeth, especially for the front teeth.

3) Food may be trapped under the bridge. Initially, the bridge is lightly attached to the alveolar mucosa, but as time goes by, the alveolar ridge shrinks and a small gap appears between the bridge and the alveolar mucosa, allowing food to be trapped. It is not easy to clean and there is an odor. 4) Increase the burden on adjacent teeth. Fixed dentures are completely bonded to the adjacent teeth on both sides. The burden of missing teeth is completely shared by the adjacent teeth on both sides. That is, the work of three people is done by two people, and the burden on the adjacent teeth is significantly increased. 5) Not suitable for multiple tooth loss or last tooth loss. Since fixed dentures increase the burden on adjacent teeth, it is not suitable to perform fixed denture restoration when there are many missing teeth and few remaining teeth. If denture restoration is performed reluctantly in this situation, the burden on the remaining teeth will increase too much, exceeding their bearing capacity, which will cause these teeth to loosen and fall off. Finally, if a fixed denture is used to repair missing teeth, there is only one side of the bridge pier, and one side of the bridge pier is a long cantilever. Due to the effect of the lever, the torsion on this bridge pier will be very

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