Crown telescopic: advantages and disadvantages, varieties

The telescopic crown is a construction of two parts: primary and secondary. It is used mainly to fix removable dentures. The primary part is a cap made of metal. The secondary crown is fixed on the prosthesis frame. When connecting two parts, a strong structure is formed. With its help, you can form a strong fixation of the prosthesis, which at the same time will be easily removed.

Varieties of telescopic crowns

This mechanism was first tested in Germany at the beginning of the last century. By its name, the telescopic crown owes its resemblance to the telescope. Its components move in the same way relative to each other. For almost a century of history, this design has managed to prove its practicality, ease of use and good aesthetics. Today, telescopic crowns can serve as an excellent alternative to implant prostheses.

There are two varieties of this design - cylindrical crowns and conical. In general, they differ in appearance. The earliest examples of telescopic crowns were made by masters with cylindrical walls. They are characterized by a sufficiently dense planting. Today, this design is appropriate to use only among patients with absolutely healthy gums.

The telescopic cone crown is an improved version of the cylindrical crown. Its main advantage is the absence of influence of errors, which are possible at the manufacturing stage. This design does not allow skewing or jamming when fixing the prosthesis. The main disadvantage of the improved system is the possibility of detaching the crowns when in contact with food.

Advantages of telescopic crowns

What positive aspects can be noted in the application of this design?

1. Chewing load is evenly distributed to all teeth and gums.
2. Absence of influence on diction and bite.
3. Possibility of installation on implants.
4. Long service life.
5. Easy to use and maintain.
6. Maintain the health of the tooth for a long time.

This is not all the advantages of telescopic crowns. Everyone can note positive aspects in using the design.

Disadvantages of telescopic crowns

Among the main drawbacks of this design can be noted a long period of production and high cost. However, negative aspects are completely compensated by the above listed advantages of crowns.

Indications for installation

The use of telescopic crowns is advisable in the following cases:

• Presence of periodontal disease and loose supporting teeth;
• There is no financial opportunity to install implants;
• Too few teeth for the clasp prosthesis.

The need to use this design is still determined by the doctor.

Telescopic crowns: manufacturing steps

The production of the design described in the article is today possible in two ways: by stamping and casting. The first method is considered to be the simplest. However, when casting is used, it is possible to obtain a more attractive appearance of the product by processing with modern materials.

The manufacture of telescopic crowns begins with the turning of the patient's teeth under the inner part of the structure. Then the specialist removes the casts and sends them to the laboratory. There, technicians already make models for them and make caps. It is very important to check the parallelism of the walls of the supporting teeth so that the structure is perfectly seated. After fitting the caps, a plaster mold is formed for casting the future model. The outer crown is made with allowance for a gap of 0.5-1 mm. On the resulting impression, the outer structure is already made.

Cost and service life

A telescopic crown is considered a relatively expensive treat. Its cost can vary from 5 to 11 thousand rubles. If we talk about full prosthetics, the final price will depend on several factors simultaneously (the material used, the number of supporting teeth, etc.). It is not possible to name it exactly.

Clasp prostheses on telescopic crowns are characterized by a short service life - no more than 10 years. To increase it, you should periodically visit the doctor and supervise the work of the structure.