Features of implantation of the 7th tooth on the upper and lower jaw

“You urgently need to remove the 48th tooth!” - such a statement from the dentist can seriously puzzle the patient, because even from a school biology course everyone knows that there are only thirty-two teeth in the mouth. Where did this mysterious 48th come from, and what is with the strange numbering of teeth among dentists? Cunning doctors have invented a diagram of a person’s teeth with numbers that only they understand, and patients get confused in these numbers, trying to understand what they are talking about and where they suddenly got “extra” dental units from.

In fact, the teeth numbering scheme in dentistry is quite simple, clear and accessible - it was created in order to facilitate the “accounting” of dental units in patients and bring it to some uniform standards. After all, if every dentist starts counting dental units as he pleases, nothing good will definitely come of it. Especially if the patient subsequently gets an appointment with another doctor and he simply does not understand what tooth numbers are indicated in the medical record and what kind of treatment was ultimately carried out earlier.

Number of roots in human teeth

There can only be one dental crown, but the number of roots a tooth has depends on its location and purpose. The number of roots is also influenced by hereditary factors. It is possible to determine how many roots a tooth has only with the help of an x-ray. The inner part of the tooth (root) makes up about 70% of the entire tooth.

Factors influencing the number of roots:

• Location of the tooth.
• The purpose of the tooth, its functionality (chewing or frontal).
• Genetic predisposition.
• Patient's age and race. In the European race, the number of dental roots is very different from the Negroid and Mongoloid races.

Asymptomatic wisdom tooth - remove the 8th tooth, save the 7th tooth

A young man came to the Dial-Dent dental clinic to treat a tooth with caries. Dental treatment for caries was performed on the day of treatment. Traditionally, the patient was recommended (to assess the condition of the entire dental system) to undergo Alaverdov V.P. using modern digital diagnostic equipment.

After analyzing the image, specialists drew the patient’s attention to several serious problems (see photo below):

1. The wisdom tooth on the lower left has partially erupted, as can be seen in the picture, but is tilted. A narrow gap has formed between the wisdom tooth and the 7th tooth. Food gets stuck in this gap, which first leads to bad breath, and later can lead to inflammation or gumboil.

1. Using a panoramic photograph of the teeth, doctors were able to see a deep carious cavity on the seventh tooth.

What happens if you don't pay attention to a diseased wisdom tooth?

1. Inflammation of the gums, swelling, gumboil.
2. Pulpitis in the seventh tooth due to deep carious lesions. Only a panoramic photograph of the teeth will help determine what is causing the pain and inflammation in this case.

Asymptomatic wisdom tooth - solution to the problem

1. Teeth cleaning. It is necessary to carry out a procedure to remove tartar and remove plaque. This is necessary in order to carry out wisdom tooth extraction in clean conditions. This approach significantly reduces the risk of inflammation after wisdom tooth removal.
2. Wisdom tooth removal. In dental dentistry, the removal of wisdom teeth is performed by qualified maxillofacial surgeons Alaverdov V.P. and Yakimenko I.I. There is the necessary equipment and anesthesiologists to remove teeth under anesthesia.
3. Healing of the gums after wisdom tooth removal usually lasts 2-3 weeks. After this, you can begin treatment and restoration of the 7th tooth. Without removing tooth 8, quality treatment of tooth 7 is impossible.

1. Treatment of the 7th tooth. Note that it is extremely difficult to treat a distant tooth due to its location. For high-quality treatment, it is necessary to have high-quality equipment at the workplace and qualified assistance from a medical assistant. It should be added that it is not recommended to restore a tooth with a light-curing filling. The best restoration method in this case is a ceramic inlay.

The 8th tooth socket is covered with a special material

Advantages for patients of the treatment and diagnostic tactics offered by the Dial-Dent clinic:

1. Comprehensive diagnostics - identifying hidden problems at an early stage.
2. Saving the 7th tooth, the health of which is very important for the bite.
3. Identifying a problem in the 7th tooth before the onset of predicted pulpitis allows you to save money on treatment, since pulpitis is more difficult to treat and therefore more expensive.

Clinical case No. 2

Teeth numbering system

Dentists have developed a system in which all teeth have their own serial number. The numbering system for the teeth of the lower and upper rows will not allow you to “get confused” in the teeth.

The first number is the incisors - the frontal teeth of the upper and lower rows. There are two teeth on each side (left and right): No. 1 - central, No. 2 - lateral, behind which there are fangs, numbered No. 3. The small molars have numbers 4 and 5.

All of the listed teeth have one cone-shaped root.

Teeth No. 6, 7, 8 - large molars have three roots, and tooth No. 6 of the lower row has one root, with the exception of tooth No. 8, which can have 3 or even 4 roots.

Should I get dentures for the 7th tooth?

This question, oddly enough, cannot be called rarely asked. This is probably due to the fact that the “seventh” teeth can be classified as practically the most distant ones and their absence is not noticeable to people around them in everyday life. However, this is by no means the main purpose of teeth - it is the distant chewing teeth that play one of the key roles in the process of chewing food, on which the quality of digestion largely depends. And already, at least based on this, it is undoubtedly better to perform dental prosthetics.

However, let’s try to answer this question based on several extremely important aspects:

1. If at least one chewing tooth is missing in the jaw, then the chewing load can no longer be distributed evenly, which means that sooner or later, problems with other teeth will inevitably begin;
2. Our body is a perfect mechanism in which everything is interdependent and interconnected. This also applies to teeth: one of the features of our jaw is that the antagonist tooth (the tooth that is located clearly opposite in the upper/lower jaw) will be subject to the possibility of loss after a certain period of time. Since it no longer has support, it will begin to move forward, become loose, and may fall out;
3. Digestive problems due to insufficient chewing of food are a very common case in people whose jaws lack the teeth necessary for chewing food.

These are, perhaps, the main factors that prove that dental prosthetics , which we need for chewing food, is a necessity for the health of the oral cavity and the body as a whole.

The main ways by which prosthetics can be made for “seventh” teeth in their absence are:

1. Prosthetics with a bridge. This scheme is possible if you have adjacent teeth preserved in your mouth - that is, the sixth and eighth. They will serve as a support for the prosthesis. The disadvantage of the described prosthetic option is the need to grind down these very adjacent teeth - this cannot be avoided, since it is impossible to secure the prosthesis (bridge) otherwise;
2. Dental implantation. Implantation of an artificial tooth root is the most progressive method of prosthetics for tooth loss and does not in any way affect neighboring teeth. After the implants have taken root, a crown .

It should be noted that dental implantation for prosthetics of the “seventh” tooth will be the most effective, harmless to other teeth, durable and reliable option. This is due to the fact that the service life of bridges is, on average, several years. While implants, if all recommendations are followed and proper oral care is taken, can last for the rest of your life.

Share on social media networks:

Rating 0.00 [0 Vote(s)]

How many canals are there in teeth?

The number of tooth canals does not always coincide with the number of roots. The number of channels can only be determined using x-rays. The upper incisors usually have two or three canals. Some teeth have only one canal, which branches into two parts.

Number of canals in teeth:

• Upper Lower four – 1, less often 2 channels;
• Upper second – 1, less often 2 and even 3 channels;
• Bottom five – one channel;
• Upper first molar 3, 4 canals;
• Lower first molar – 3, less often 2 canals;
• Upper and lower seven – 3, 4 channels.

Removal of a wisdom tooth before implantation of the 6th tooth

The patient went to the Dial-Dent clinic to see dentist S.V. Tsukor. with the desire to carry out prosthetic replacement of one missing tooth in the jaw.

The patient was offered implantation to replace 1 missing tooth. During diagnosis and preparation for dental implantation, the patient was given a panoramic image, which showed the presence of a hidden problem - a wisdom tooth. The treatment plan was changed: first, the patient had to remove the wisdom tooth, then treat the 7th tooth, and only then proceed with dental implantation.

In this case, correct diagnosis (panoramic image of the teeth) helped specialists correctly plan treatment and dental implantation.

Situation at the time of application

Clinical case No. 3

Are you planning to restore a tooth with a CEREC inlay?

Always at your service - Sergey Samsakov, orthopedic dentist with more than 10 years of successful experience, Moscow. Expert in 3D digital smile modeling, dental inlays and dental modules, veneers and digital CEREC technology.

Patients come to me from all over Russia:

Causes and consequences of removing the seventh teeth

The functions, structure, and location of the sevens create favorable conditions for the development of pathology:

• Molars are responsible for chewing food and are exposed to stress every day.
• Sixes and sevens are difficult to access for hygiene procedures. The accumulation of food debris leads to the formation of plaque and carious lesions.

In addition, tooth trauma and destruction due to a deficiency of vitamins and minerals that maintain normal bone density lead to removal.

The long-term absence of seven leads to undesirable consequences for health and appearance:

• the quality of grinding and digestion of food deteriorates;
• the bite is disturbed;
• jaw atrophy develops;
• the facial muscles rest on the crown of the tooth;
• if there is no tooth, deep nasolabial folds appear and the cheeks sag.

Complex tooth extraction: when is it necessary?

Clinical indications for which the dentist prescribes complex tooth extraction are as follows:

• the presence of an unerupted wisdom tooth in the jaw;
• if the figure eight is incorrectly positioned;
• when removing molars with two or three roots;
• with a severely damaged or twisted root;
• in case of fusion of the tooth root with the jaw bone tissue;
• in the presence of a fistula or cyst;
• with excessive fragility of the crown due to treatment with resorcinol-formalin composition.

The operation itself consists of several stages and is carried out under the influence of powerful anesthetics.

Recommendations after removal

Regardless of the method by which the tooth was removed, in the first 2 days the patient must observe a special diet, activity and hygiene. This is necessary to preserve the blood clot in the wound, which helps maintain the sterility of bone tissue and promotes its regeneration.

In the first 48 hours after removal you cannot:

Failure to comply with these recommendations most often causes the clot to fall out of the socket and the development of alveolitis or bleeding.

After tooth extraction it is recommended:

• make oral baths from chamomile and sage decoctions (the decoction prepared according to the instructions is taken into the mouth and held there for 10 minutes, without rinsing or moving the tongue) 2-3 times a day;
• take non-steroidal anti-inflammatory drugs (especially after atypical removal, when the tissue is severely damaged and swelling occurs) - nimesulide, diclofenac sodium, ibuprofen, paracetamol, etc. (it is important that the medicine does not reduce blood clotting).

Sometimes patients need preliminary preparation for removal. People taking aspirin and other medications that impair blood clotting should stop taking them a week before the procedure. For those who suffer from increased excitability and anxiety, you can start taking valerian or motherwort 1-2 weeks before removal, having previously agreed with your dentist and your therapist.

Even if the removal was painless and quick, you should not ignore the doctor’s advice. The right approach to rehabilitation will help you avoid complications and recover faster.

Is it possible to place a crown right away?

A one-stage technique with instant loading involves the rapid restoration of lost teeth - the titanium root is loaded with a temporary crown for a maximum of 3 days after surgery. But this method is only suitable for replacing teeth that do not take part in chewing (premolars - fours, fives).

This method is not recommended for second molars. When eating, the sevens are subject to stress, which leads to displacement of the implant. Therefore, the crown is installed after healing, when the root has firmly grown into the bone. Until osseointegration is completed, the patient wears a lightweight removable denture. It is attached to adjacent teeth and does not load the implant. If the patient insists on immediate installation of a crown, the clinic does not provide a guarantee for the implant system.

If the patient insists on immediate installation of a crown, the clinic does not provide a guarantee for the implant system.