Many people use denture services. Now they use various materials for this procedure, which cost a lot of money. Plastic crowns are the best option for people with a limited budget. They do not stand out against the background of natural teeth and are easy to manufacture, however, in their strength properties are much inferior to metal and ceramics.
Plastic crowns on the front teeth
Most often this material is used for the restoration of chipped teeth to give a smile aesthetic appearance. Due to the speed of production, such crowns allow solving the problem in a short time.
On the front teeth, such structures can be installed without any particular risk due to the optimal ratio of price and quality. Since plastic crowns are not capable of withstanding mechanical stress, they are not installed on the chewing teeth. In conditions of increased abrasion, their service life is not more than several years.
Also worth noting a number of shortcomings:
- color change after a while;
- the content of substances that can cause allergies ;
- high absorbency of dyes and odors, which creates a favorable atmosphere for bacteria.
Temporary plastic crowns
The greatest use of this material found in the manufacture of temporary structures, which will hide the dentured crowns for durable crowns. Dissected teeth are hidden under a plastic crown to protect them from cold and germs, as these factors can weaken the tooth and cause difficulties in prosthetics.
Installation of this design is made for the period of manufacture of durable crowns. Temporary teeth allow to solve such problems:
- to give aesthetic smile;
- provide chewing functions;
- protect from external influences;
- maintain a normal diction;
- prevent the overgrowth of the gingiva bed;
- prevent displacement of supporting teeth.
As a rule, the term of wearing such prostheses is from several days to a month.
Indications and contraindications for the installation of plastic crowns
Installation of plastic prostheses can be appointed in such cases:
- with small defects in the front teeth to form an attractive smile;
- for restoration of masticatory functions in caries, congenital diseases or traumas of teeth;
- as temporary prosthetics.
Plastic crowns are prohibited for the following groups of persons:
- allergic to polymeric materials;
- patients with deep bite ;
- children;
- with bruxism.