The making of a crown or a bridge is necessary in the following cases:
- After a root canal treatment there is no more circulation in the tooth, it dries out and will be breakable. In order to prevent this, it is recommended to have a crown made.
- In case of a broken off tooth, after the dental pin was pasted into the tooth.
- 4-5 weeks after a tooth extraction it is advisable to have a bridge made.
Tasks before the treatment
Before making a dental prosthesis a thorough dental examination and an x-ray are accomplished in any case. After that the patient will receive its treatment plan. If the suspicion arises that the patient is allergic to the metal, a special dental metal allergy examination has to be accomplished.
The intervention is accomplished under local anaesthesia (lidocain injection). It is important that the patient eats something before the intervention, because after the local anaesthesia you can not eat until the numbness is away (about 3-4 hours).
Making process of the crowns and bridges
Before the abrasion of the teeth a so called informative imprint should be made. This imprint is very important for the dental technician in order to assert the initial state of the teeth. After the local anaesthesia of the teeth the surface will be grinded in order to stick the crown on it. Afterwards the dentist makes the first imprint. The dental technician prepares the crowns and the bridges in more phases (it takes 1-2 weeks). If it is necessary the patient can get provisory crowns on the grinded teeth. On a later appointment the dentist sticks the final crown on, if the patient is already used to it.
Material of the crowns and bridges
In our clinic we make in 90 per cent porcelain crowns. These crowns are on the visible surfaces white and there is a thin metal edge on the non-visible parts near the gingival. Our dentists don’t recommend the plastic crowns because their lifetime is shorter, they are not so aesthetic and discolour faster than the porcelain crowns.
Side-effects after the treatment
The average lifetime of the crowns is 8-10 years. If the gingival becomes stunted, the crown can be replaced earlier as well. The lifetime of the crowns can be extended with the regular cleaning.
Guarantee
The dental laboratory gives one year guarantee on the workings of dental techniques. The prerequisite of the guarantee is: half-yearly control at the dentist. |
