Crown telescopic: advantages and disadvantages, varieties

The telescopic crown is a two-piece construction: primary and secondary. It is used primarily to fix removable dentures. The primary part is a cap made of metal. The secondary crown is fixed on the frame of the prosthesis. 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. The name of the telescopic crown is due to the similarity to the telescope. Its constituent parts move in the same way with respect 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 types of this design - cylindrical crowns and conical ones. In general, they differ in appearance. The earliest examples of telescopic crowns were made by masters with cylindrical walls. They are characterized by a fairly dense planting. Today, this design is appropriate to use only among patients with absolutely healthy gums.

The telescopic cone crown is an improved cylindrical version. Its main advantage is considered to be the absence of influence of errors that 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 are the positive aspects that can be noted in the application of this design?

1. The gum load is evenly distributed to all teeth and gums.
2. No effect 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 manufacture and high cost. However, the negative aspects are completely compensated by the above-listed advantages of the crowns.

Indications for installation

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

• the presence of periodontal disease and loose supporting teeth;
• no financial ability to install implants;
• too few teeth for lock denture prosthesis.

The need to use this design is nevertheless determined by the physician.

Telescopic crowns: the manufacturing stages of

The production of the design described in the article is possible today 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 a gap of 0.5-1 mm. On the resulting impression, the outer structure is already made.

Cost and life of the

The 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 dentures on telescopic crowns are characterized by a short service life - no more than 10 years. To increase it, it is necessary to periodically visit the doctor and supervise the work of the structure.