Treatment of Periodontitis in Astana: Methods, Stages, and Answers to Questions

Where exactly does inflammation occur?

The tooth is made up of layers. At the center is the pulp, a loose tissue with nerves and blood vessels. It is surrounded by dentin, and on the outside by enamel or root cementum. Beyond the root apex lies the periodontium: a thin ligament of fibers that holds the tooth in its bony socket. Inflammation in each layer has its own name. Pulpitis is a process inside the pulp. Periodontitis is beyond the root, in the ligament and adjacent bone. Periodontal disease develops on the outside, in the gum and bone tissue around the neck of the tooth. The starting point determines both the complaints and how the doctor looks for the cause. In deep caries, microbes first enter the pulp. If the process is not stopped, inflammation spreads through the root canal into the periodontium. One diagnosis flows into another, and this affects the treatment approach. Separately about the gum. Its inflammation begins with plaque at the gum margin and is not related to the tooth canal. A different mechanism, a different cause, a different treatment profile. A periodontist deals with the tissues around the tooth, while a general dentist deals with the root apex.

Three diseases — three different locations

Why pulpitis and periodontitis are confused

Both conditions start with caries and microbes in the tooth. Both can be painful. Both are treated by a general dentist. This is why patients get confused. But the complaints differ. With pulpitis, the pain is more often sharp, paroxysmal, worse at night and from cold or hot. The tooth reacts to temperature even after the stimulus is removed. With periodontitis, the tooth aches, feels elongated, and hurts when biting. Thermal stimuli often do not cause a sharp response: the nerve may be non-vital. Another difference is in the image. On an X-ray, periodontitis shows widening of the periodontal ligament space or darkening at the root apex. With pulpitis, such changes beyond the apex are usually absent. The doctor compares complaints, examination, and image. Sometimes the picture is mixed: the pulp has died, and inflammation has already spread beyond the root. Then both words appear in the diagnosis. There is also an everyday source of confusion—similar names. 'Pulpitis,' 'periodontitis,' and 'periodontal disease' differ by a couple of letters but mean different things. A patient hears 'periodontitis' and thinks about the gums. The doctor means the root apex.

How to tell gum inflammation from inflammation at the root apex

Infection from the canal as the main cause

Microbes enter the periodontal ligament from the root canal. The carious cavity deepens, the protective layer of enamel and dentin is destroyed, and the contents of the mouth gain access to the pulp. The pulp becomes inflamed, then dies. The canal ceases to be a sterile space — it fills with debris and bacteria. Through the apical foramen, the natural opening of the canal at the root apex, the waste products of microbes pass into the surrounding tissues. There an inflammatory reaction begins. The body responds with defense: more blood flows in, immune cells work, and a focus forms. This mechanism is the most common. Less often, infection reaches the periodontal ligament another way: through a deep gum pocket, during trauma, or during endodontic treatment if an instrument or material passes beyond the apex. But even then the root cause is bacteria, not the instrument itself. Without microbes, persistent inflammation at the apex usually does not occur. That is why treatment is aimed at removing the infection from the canal system, not just relieving pain.

Other pathways: trauma, restoration, medications

How inflammation travels from caries to the root apex

The process develops in stages. First, caries destroys the enamel, then the dentin. When microbes reach the pulp, pulpitis begins. The pulp may hurt, then dies — the pain subsides, but this is not recovery. The necrotic tissue in the canal becomes a breeding ground. Bacteria multiply, and their toxins and breakdown products move toward the apex. Through the apical foramen they pass into the periodontal ligament. The tissues around the root respond with inflammation: blood vessels dilate, fluid leaks out, and leukocytes arrive. If there is drainage, the process is sluggish and remains unnoticed for a long time. If there is no drainage, pressure rises, pain on biting appears, swelling occurs, and sometimes fever. The body tries to wall off the focus: a capsule of connective tissue forms around it. This is how a granuloma appears, and from it, under certain conditions, a cyst. The speed and scenario depend on the clinical picture: on how wide the canal is, how virulent the microbes are, and how the immune system responds. The doctor decides after examination and imaging.

Granuloma and cyst: what they are and how they differ

Diagnosis before treatment begins

First, it is necessary to understand what is happening around the root apex. The doctor relies on imaging: periapical or panoramic. It shows widening of the periodontal ligament space, bone loss, and the shadow of a cyst or granuloma. Sometimes one projection is not enough, so an image is taken from another angle. Next, they check whether the tooth is vital: response to cold, to percussion, to probing. If the crown is destroyed, they assess whether there is enough to anchor to. All canals need to be found. In molars there may be three, four, sometimes more. A missed canal is a common reason why inflammation returns. Working blindly is not acceptable: without imaging and without understanding the anatomy, any intervention becomes guesswork. The condition of the gum and bone tissue around the tooth is assessed separately: pocket depth, mobility, bleeding. These data are not always related to the canal, but they affect the overall plan. If there are destroyed teeth or prostheses nearby, they are also examined. Sometimes the cause of pain is not the tooth the patient complains about. The doctor makes the plan based on the clinical picture.

Stages of canal preparation and disinfection

Temporary and permanent canal filling

Between visits, the canal is kept sealed. A temporary filling prevents saliva and bacteria from getting inside. If the tooth hurts when biting, they try not to put pressure on it. When there are no complaints and the canal is dry, they move on to permanent filling. The canal is filled with gutta-percha and a sealer — a paste that seals the gaps between the wall and the material. Voids are unacceptable: they leave a nutrient medium for bacteria. The method is chosen based on the situation. Gutta-percha is inserted as a single cone, or heated and compacted laterally, or placed through a special carrier. The warm technique provides a tighter fit in curved canals, but requires skill. After filling, a control X-ray is taken. If the material extends beyond the apex or does not reach it, they decide whether redoing is necessary. On top, the tooth is covered with a filling or crown. Until then, chewing hard food on it is not advisable: the walls may crack.

When antibiotics and rinses are used

Not every periodontitis requires pills. If the lesion is confined to the canal and there is no swelling or fever around it, cleaning and filling are enough. Antibiotics are needed for a purulent process, when the pain is throbbing, the gum is swollen, fever rises, and lymph nodes are enlarged. Then the doctor prescribes an oral medication or gives injections into the transitional fold. The choice and dose are determined by the doctor; taking antibiotics on your own is not allowed: it blurs the picture and makes it harder to assess the dynamics. Rinses are an auxiliary measure. A soda solution, chlorhexidine, or chamomile decoction relieve mucosal irritation, but they do not penetrate into the canal. They do not replace cleaning and do not treat the cause. Heating compresses are harmful during a purulent process: they increase swelling. What exactly to do is decided by the doctor based on the clinical picture.

Why a canal may be incompletely filled

A canal is a narrow, curved passage with branches and partitions. Some branches remain hidden behind a curve or behind deposits on the walls, and the doctor cannot see them. The filling material may not reach the root apex or may extend beyond it. In the first case, a void remains in the canal where bacteria accumulate. In the second, the material irritates the tissues around the root. The cause can also be reinfection: if the tooth crown is not sealed, saliva gets inside and triggers a new inflammatory process. Sometimes the canal could not be negotiated to its full length due to severe curvature or calcification. In such cases, the doctor decides whether it can be renegotiated or a different approach is needed. Sometimes several years pass after the first treatment, and the problem returns. This is not always a dentist's mistake — tooth anatomy can be complex, and diagnostics do not always show all the details.

Signs that indicate retreatment is needed

Apicoectomy and tooth extraction

Depophoresis as an additional treatment

Depophoresis is the treatment of canals with a weak electric current and a medicinal solution. It is used as an addition to mechanical and chemical treatment when a canal is difficult to negotiate fully or has branches. The method does not replace the main treatment and does not guarantee results. The doctor may offer it in certain cases, but the decision depends on the clinical picture. Depophoresis is not performed if a pacemaker is present, during pregnancy, and in some other conditions. The effectiveness of the method is debated in professional literature, and there is no consensus on it. If the doctor recommends depophoresis, it is worth discussing all the pros and cons with them. Sometimes it can be avoided, and sometimes it becomes an auxiliary step. The main thing is not to postpone a visit if the tooth is bothering you.

How a primary tooth differs from a permanent one

A primary tooth is smaller in size, and the walls of its roots are thinner. The canals are wider, but they also narrow quickly toward the apex, and the root itself resorbs as the change of dentition approaches. Because of the thin walls, an instrument behaves differently in the canal: the slightest extra movement leads to perforation or fracture. Inflammation at the apex of a primary tooth spreads quickly to the follicle of the permanent tooth lying nearby. In a permanent tooth with an unformed root, the picture is the opposite: the walls are thick, but the apex is open with a wide flare. Such a canal cannot be filled in the usual way, because the material will extend beyond the tooth. That is why in pediatric practice, temporary canal filling is used more often, with monitoring of root formation. The doctor assesses not only the lesion itself, but also how it relates to the bud of the adjacent tooth. This determines whether the tooth can be saved or will have to be removed prematurely.

Stage of root development and proximity of the tooth bud

The root of a permanent tooth grows for several years, and its apex closes gradually. Until this process is complete, the canal remains open into the bone, and any treatment requires caution. Irrigation solution easily passes beyond the apex and irritates the surrounding tissues. The instrument must not be pushed toward the walls, because they are still thin and may crack. A separate difficulty is the proximity of the permanent tooth bud to the inflammatory lesion in the primary tooth. If the process has affected the follicle, this changes the plan: sometimes the tooth is saved, sometimes it is removed to avoid damaging the growing tooth. The doctor decides based on the radiograph, which shows both the stage of root development and the position of the bud. The child's age is also taken into account, but by itself it does not determine the approach. The same diagnosis in children of different ages is treated differently. It depends on the clinical picture and how far the process has progressed.

When a primary tooth is kept until the change of dentition

What the pediatric dentist decides

The pediatric dentist looks at the tooth not in isolation, but in the context of the entire dentition. They compare the radiograph, the age and stage of root formation, the condition of the bud, and the child's behavior during the appointment. This determines whether to treat the canal or extract the tooth. Sometimes the lesion at the apex of a primary tooth subsides on its own, and then observation with follow-up radiographs is enough. In other cases, delay harms the bud, and the tooth is removed prematurely. It is important for parents to understand: the decision here is not a template one; it is made based on the specific picture. One child tolerates treatment over several visits calmly, while another needs a different pace. The doctor explains what is happening with the tooth now and what will happen with the permanent tooth. If the case is complex, related specialists are involved. The approach changes along the way: what looked like preserving the tooth may, on a new radiograph, become a reason for extraction. And vice versa.

The cause is almost always in the canal

Periodontitis is inflammation of the tissues around the root apex. Most often it develops because of bacteria remaining in the canal. The canal may not have been negotiated to the end, may be poorly filled, or may have branches that are not visible on the radiograph. Sometimes it is damaged during previous treatment. Less often, the cause is not in the canal: tooth trauma, overload during occlusion, or a deep pocket next to the root. But even then, the canal is checked first. As long as the infection inside persists, the inflammation around the apex does not subside. That is why treatment almost always begins with root canal retreatment, not with an incision of the gum. It happens that the canal is densely and hermetically filled, yet the lesion remains. Then the cause is sought further: a root crack, a cyst, or a connection with the maxillary sinus. The doctor decides based on the radiographs and on how the tooth responds to treatment.

A diagnosis is not made without a radiograph

Periodontitis cannot be distinguished from pulpitis or periodontal disease based on symptoms alone. The pain may be mild or absent altogether, while bone destruction around the root is already underway. That is why an X-ray is needed. Usually a periapical X-ray is taken, sometimes a panoramic one. If the lesion is near the sinus, the upper jaw, or the mandibular canal, a CT scan may be required. The X-ray shows how widened the periodontal ligament space is, whether there is a cavity in the bone, and how well the canal has been filled. Without an X-ray, it is impossible to tell which tooth is hurting: the pain often radiates to a neighboring tooth. Nor can the fate of the tooth be decided — whether to save it or extract it. Sometimes the X-ray is repeated during treatment to check how the canal is progressing and where the filling material is positioned. A chronic lesion can remain symptom-free for years and is often found by chance — on an X-ray before prosthodontic treatment or treatment of a neighboring tooth.

Treatment plan is individual

There is no single protocol. Everything depends on the clinical picture: the size of the lesion, the condition of the root, how many tooth walls remain, and whether there is a crack. In one case, the canal is retreated and monitored. In another, the canal is treated first and then the crown is reinforced. In a third, the canal cannot be negotiated — then apicoectomy or extraction is discussed. Age, general health, and medications are also taken into account. The doctor decides, and the decision changes along the way: if the canal is perforated during the procedure or a crack is found, the plan is revised. The patient should understand: follow-up after treatment is part of the plan, not a separate visit. A lesion in the bone heals slowly, and the follow-up X-ray is not taken immediately. If the tooth is not bothering you, that does not mean the process is complete. Sometimes several follow-up examinations are needed before placing a crown or a permanent filling.

Prevention is easier than treatment

Periodontitis most often develops in a tooth that has already undergone treatment. That is why the main thing is not to let it progress to deep caries. In its early stage, caries is easy to treat, but once it reaches the pulp, root canal treatment becomes almost inevitable. From there, everything depends on how well the canal is treated. Good oral hygiene reduces the risk: plaque and tartar sustain gum inflammation, and inflammation near the root impedes healing. Regular check-ups help catch a lesion while it is still small. If a tooth has already been treated, its condition should be checked on an X-ray — not constantly, but as directed by the doctor. Protecting teeth from overload is also sensible: teeth grinding during sleep, the habit of biting hard objects, and missing neighboring teeth all put extra stress on the root. A dental injury is best shown to a doctor right away, even if the tooth does not hurt. The earlier a lesion is found, the easier it is to deal with.