Sometimes there may be major loss of material in the teeth or teeth may be lost due to major caries and sometimes trauma. For many years, metal-supported porcelain veneers have been used to repair teeth with missing teeth and excessive substance loss. However, these coatings have some deficiencies in terms of aesthetics. For this reason, alternatives to the gray-looking metals in the infrastructure of the coatings were investigated. Today, zirconium infrastructures replace traditional metal infrastructures, especially in cases where aesthetics is important. Zirconium veneer is the most compatible, natural and durable veneer type for the gingiva.
What is zirconium?
Zirconium is actually a metal element found in nature. This element, which has high aesthetic properties, is used in dentistry as a white metal alloy. In cases where aesthetics is important, zirconium supported porcelains are used as an alternative to other metal-supported porcelain coatings.
What are the advantages of zirconium crowns?
Zirconium veneers are the most used treatment method in teeth where there is excessive material loss and other aesthetic veneers cannot be applied. Since it is a white material that provides high light transmittance, it gives much better aesthetic results than traditional metal-supported coatings, while being more resistant to chewing forces than full porcelain teeth increases their usage areas.
In addition to these, one of its important advantages is that its compatibility with the gingiva is much better than metal-supported porcelain and that it does not create unpleasant color differences at the gingival borders.
In some cases, allergies may develop to materials such as chromium alloys used in the infrastructure of traditional metal-supported porcelain coatings. Zirconium veneers are also advantageous in such cases.
What is zirconium veneer used for?
Zirconium veneers can be made on anterior teeth where traditional metal-supported porcelain veneers cannot provide adequate aesthetics.
Zirconium veneers can be applied on teeth with a high chewing force, where aesthetic veneers made entirely of porcelain are avoided.
Excessive material losses in teeth can be eliminated with zirconium crowns. These material losses can occur due to large caries, or sometimes in the form of tooth fractures due to trauma.
Dental prostheses called “bridges”, which are applied in the presence of tooth deficiencies, can also be made with a zirconium infrastructure.
In patients who do not prefer orthodontic treatment, zirconium crowns can be applied to eliminate crowding.
Zirconium veneers can be used in the manufacture of implant-supported prostheses.
Zirconium veneers can also be made in cases where tooth bite sizes are reduced as a result of wear caused by tooth clenching and grinding.
Zirconium veneers can also be used in teeth with insufficient aesthetic properties and structural disorders due to genetic reasons.
Who can have zirconium veneers?
Zirconium veneers can be applied to anyone who has completed their jaw and tooth development, if needed.
How is zirconium veneer done?
First, a detailed intraoral examination is performed on the patient. Tooth deficiencies, teeth with excessive substance loss, caries and aesthetic needs are determined.
If there are needs such as tooth extraction, gum treatment and tooth cleaning before zirconium crowns, these treatments are performed.
Impressions are taken from the patient’s mouth to prepare temporary veneers and to show the condition of the mouth before the treatment is started, and plaster models are made. The teeth to be treated and the surrounding tissues are anesthetized with local anesthesia. The teeth are reduced to a shape and size on which the zirconium crown can sit comfortably.
Measurements are taken to obtain the necessary model for the production of the zirconium coating. While taking these measurements, mostly silicone-based impression materials are used.
Then, the chewing movements of the patient and the closure of the teeth are determined with the help of special candles for dentistry. In some cases, when there is no tooth contact to close in the mouth, the bite size is determined by using other face sizes and angles.
Temporary veneers are obtained from acrylic material in accordance with the cut and reduced teeth of the patient. Temporary veneers are obtained in two ways: the direct method made with the help of the previously taken impression in the patient’s mouth and the indirect method prepared on the model obtained. Then, these temporary prostheses are attached to the patient’s mouth with an easily removable adhesive material and the first session of the treatment is completed.
In some cases, zirconium infrastructure can also be created with digital dentistry applications. However, this method cannot be used in zirconium prostheses containing too many members. Zirconium coatings with up to 3 members can be produced in devices called cerec, according to digital measurements taken with micro cameras.