What for should one fill his tooth canals?
If a patient has developed pulpitis or caries the necessary treatment is not only cleaning the carious cavity and removing the nerve but also filling the tooth canals. Filling of tooth canals is expected to restore the integrity of the tooth with the help of modern filling materials in case caries has seriously damaged tooth tissues or the old filling has become useless.
The essence of the process of filling is to fill the empty tooth canal with some special filling material. Filling is necessary because after the tooth nerve has been removed there is an empty space which has to be filled. Modern technologies of filling tooth canals and specially produced filling materials make the procedure of filling tooth canals painless. You should not be afraid to remove tooth nerves as it is not painful at all. Moreover, the whole procedure will not take much time.
As a result you will restore functionality of your tooth as well as the aesthetic look of your smile.
Still, it is not a very simple thing to treat the root of the tooth. It may need numerous investigations. The very process of filling will be not simple as well. First of all it is important to know the exact length of the tooth canal. X-ray examination will help to perform this task. The most responsible part of treatment is filling of the tooth canal. Dentist must strictly follow all rules for the procedure to be a success. Most dentists use guttapercha points and thermophil for filling of tooth canals.
Filling materials must meet the following requirements:
- leave the color of the tooth unchanged;
- completely pressurize the tooth canal;
- should not shrink;
- should be interstitial fluid-proof, not dissolve in it;
- filling material must be easily removed in case of necessity.
Gutta-percha is probably the best filling material. Still, it has its own disadvantage and cannot block various bacteria. Mind that filling materials containing glass-ionomeric cements do not have this disadvantage.
Here are some important qualities of filling materials containing glass-ionomeric cements:
- such materials are very solid;
- not rejected by body (biologically compatible);
- no shrinking;
- cements emit fluorides strengthening dentine tissues of root canals.
Nowadays light-cure fillings are very popular. They have one serious advantage. Such fillings harden quickly so the procedure of filling will take less time and effort. Light-cure fillings are especially good when serious restoration of teeth
is needed. Such filling will look just like your own healthy teeth.
Thermophil is a method of filling of tooth canals with the help of warmed gutta-percha. When warmed, this material becomes very elastic and can properly fill the tooth canal. Such hermetic sealing reduces the risk of development of pathogenic bacteria in the tooth canal. This method has become very popular with the spread of instruments that are used for mechanical treatment of tooth canal.
Thermophil as a method of filling of tooth canals has a series of important advantages. First of all, the procedure is less painless than ordinary filling. Moreover, the risk of inflammation is very low. Such filling is more hermetic than any other fillings used in modern dentistry.
If the tooth canals are too curved or barely passable, the dentist will probably offer you another method of filling depoforeze. This method is used when there is a necessity to preserve even severely damaged teeth. There is a special instrument used to apply pharmaceutical composition to the tooth canal creating a medicinal depot. This way tooth canal is being sterilized. The pharmaceutical composition applied to the tooth canal contains copper and calcium peroxide. They are the most effective antiseptics.
Now let us have a closer look at the pastes used for filling of tooth canals. Pastes containing eugenol and zinc oxide are frequently used for filling of tooth canals. Such pastes can be used to fill all kinds of teeth. Still, they have serious disadvantages: they irritate tooth tissues and are washed out of the tooth canal.
Resorcin. This paste contains formalin. It is very popular and frequently used in dentistry. However, it can change the color of the tooth.
Forfenan. This paste is warmed (polymerized) in the tooth canal. It emits gaseous formaldehyde filling lateral canaliculus. As a result pulp turns into an antiseptic mass. This paste is easily placed inside the tooth canal. It hardens within a day.
Endomethasone. This paste is not washed out, does not irritate tooth tissues. Initially endomethasol is a powder of 2 colors ivory and pink-orange (the second powder changes the color of the tooth).
Even though all these pastes and cements are frequently used in dentistry, they have serious disadvantages. First of all, they have different density in the tooth canal. Then there is a risk of overfilling of the tooth canal. As a result, unsealing of the tooth canal is possible. Air space can be another problem.
To sum up, we should mention that both cements and pastes have their own disadvantages. However they are still the most frequent methods of treatment of tooth canals.