In recent years, porcelain teeth have caused a storm in the field of oral beauty, and porcelain teeth have become the first choice for many tooth lovers. But many friends will have black lines on the gum edge after porcelain teeth are finished. Some people even have swollen gums, and their beautiful teeth will become ruined. What is the reason? Experts from Shanghai Stomatological Hospital pointed out that the phenomena of gingival margin black line and gingival blackening, which appeared shortly after the restoration of porcelain teeth, were mostly related to the selected porcelain tooth materials. Let's have a look.

Why do porcelain teeth collapse?

1. Causes of stress concentration caused by poor occlusion: After the prosthesis is cemented in place, it is forced to bite due to the existence of occlusal high points, but it does not fuse. Therefore, the restoration should follow the principle of fusion when trying on, so as to avoid premature contact and excessive local resultant force, which will lead to porcelain loss.

2, processing quality reasons.

It is because when processing porcelain teeth, the bonding force between porcelain teeth and metal will be reduced due to the factory technicians' too thick or too thin or uneven porcelain tooth layer, improper metal surface treatment and irregular operation.

3. The reasons for the preparation of porcelain teeth. When preparing teeth, the grinding of molars is uneven or not in place, which can not ensure the sufficient thickness of porcelain teeth. The porcelain layer of porcelain teeth becomes thinner, and it is easy to collapse at this time.

4. The reason of porcelain tooth design. For bridges with more missing teeth, the periodontal membrane area of abutment is larger, because the stress generated during chewing is the greatest here, and it is easy to collapse porcelain. Therefore, when designing porcelain teeth, we should try our best to increase the contact area with the tissue surface.

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The causes of the manufacturing process of metal base crown. The manufacture of metal base crown includes more than 30 processes, such as making working model, making wax model and polishing the joint surface between metal base crown and porcelain.

6. Reasons for medical advice: When the dentist gave medical advice to the patients with porcelain teeth, he failed to objectively explain the characteristics of the prosthesis and guide the patients to correct their chewing habits.

The above is the introduction of why porcelain teeth collapse. If you have any questions about this, you can click on our hospital to consult a doctor online for details. Experts from Shanghai Stomatological Hospital believe that if the doctor fails to do a good job in any link during the operation, it may lead to the failure of this tooth repair and can only be repaired again, which will cause great harm to the patient's body and mind. So in order not to hurt yourself, please choose a regular stomatological hospital and find a professional all-ceramic dental expert. Shanghai Stomatological Hospital has advanced hardware facilities and a well-known team of plastic surgery experts, bringing safe plastic surgery and warm service to every beauty seeker. more