What are the disadvantages of zirconia all-ceramic teeth?

Clinically, zirconia all-ceramic teeth have very good effects in terms of bloodlessness, precision and marginal adhesion, biocompatibility, durability, high density and high strength, and are suitable for use by many people. However, their shortcomings cannot be ignored. Zirconia all-ceramic teeth have very high technical requirements and also require high-quality materials and adhesives. Therefore, if it is not a professional hospital with a first-class dentist, it is impossible to complete this difficult dental implant project.

1. Advantages of zirconium dioxide all-ceramic teeth:

1 Aesthetics: Because it has good light transmittance, close to real teeth, unlike other porcelain teeth that block light. The color of the zirconia ceramic base crown is ivory white, so the neck will not turn black, dark or blue, solving the most difficult problem of metal porcelain crowns.

2 Precision and marginal sealing: The production is completed through computer-aided design, laser scanning, and then computer program-controlled grinding. It ensures the accuracy of the crown in the mold and excellent marginal sealing, so that the produced porcelain teeth fit very well with the abutment teeth in the patient's mouth.

3 Biocompatibility: Zirconia is an aerospace material with good biocompatibility, superior to various metal alloys, including gold. Zirconia has no irritation to the gums and no allergic reaction. Its thermal conductivity is extremely low, only 1/17 of that of gold, which is more conducive to the protection of the dental pulp. It is light in weight, with a density of only 1/4 of that of gold, making it more comfortable for patients to wear.

4 Durability: Zirconia is non-metallic and has no obstruction to X-rays. As long as zirconia porcelain teeth are inserted, there is no need to remove the dentures when a head X-ray, CT, or MRI examination is required in the future, saving time, effort, and money.

5 High density and high strength: high toughness, flexural strength greater than 900Mpa; can make multiple units of porcelain bridges, solving the problem that all all-ceramic systems cannot make long bridges.

Second, the disadvantages of zirconium dioxide all-ceramic teeth:

The price of zirconium dioxide all-ceramic teeth is relatively high, and the technical requirements of zirconium dioxide all-ceramic teeth are very high. Doctors must have a high level of clinical skills to prepare the teeth to the appropriate shape. In addition, the bonding of zirconium dioxide all-ceramic crowns to the base also requires special materials, which means that only high-level all-ceramic dental restoration doctors can master the technology well and truly realize the advantages of zirconium dioxide all-ceramic teeth.