

Root canal filling of anterior teeth
A dark carious spot and a small cavity are visible on the incisors. The canals were treated and filled, and the cavities were restored with a filling.
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Root canal filling is a stage of endodontic treatment: the canals are cleaned, disinfected, and filled with gutta-percha and sealer. The procedure involves the root, not just the crown. The number of visits, the need for a crown, and how you feel afterward depend on the clinical picture. The decision is made by the dentist based on the X-ray.
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Clinic doctors who see patients for this service. A treatment plan is drawn up after an examination.
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A filling repairs a defect on the surface. Endodontic treatment goes deeper — inside the root, where a filling no longer works. The difference is not only in depth but also in purpose: a surface restoration restores the shape, while root canal treatment removes the source of inflammation inside the tooth.
The crown is covered on the outside by enamel, beneath which lies dentin, and at the center is a chamber containing the pulp: blood vessels and nerves. As long as inflammation or decay has not spread beyond the dentin, a filling is sufficient. Once the process reaches the pulp, a surface restoration is no longer enough. The infected tissue must be removed from inside, the chamber cleaned and sealed hermetically. Work in the internal space proceeds in two stages: first in the coronal portion, then in the root canals. Canals are narrow branches extending from the pulp chamber to the root apex. Incisors usually have one, molars may have three or more. Inside each are remnants of the pulp and, when inflamed, bacteria as well. The dentist removes this content, widens the lumen and fills it with material. If a canal is left empty or sealed inadequately, the infection persists and will make itself known. That is why the scope of intervention here is broader than with an ordinary filling, and the outcome depends on the clinical picture.
A filling restores the form and function of the crown. It is retained on the dentin and protects it from load and saliva. The canal is a different zone, and the approach to it is different. The dentist works blindly at depth, guided by X-rays and length measurements. First the pulp is removed, then the canal walls are mechanically prepared, irrigated with solution and dried. Only after that is the canal filled with sealer and gutta-percha. The filling is placed later, once the canals are sealed. Sometimes it is done in the same visit, sometimes it is postponed — the dentist decides based on the condition of the tissues. The question of cost often arises when a person compares a surface restoration with work inside the root. These are procedures of different complexity: one involves the visible part, the other the hidden part. The outcome depends on the anatomy of the canals, the degree of inflammation and how completely all the branches could be treated. In complex cases, several appointments may be needed.
A tooth canal is filled with material to keep bacteria from entering. If the filling is not hermetic, it is removed and the tooth is treated again. The procedure is called root canal retreatment.
Old material does not always maintain a hermetic seal. Over time it shrinks, pulls away from the canal walls or fails to fully close the branches. Then bacteria reappear in the canal and inflammation develops. Retreatment is needed to free up the space and carry out repeat cleaning. Sometimes material is removed if it has extruded beyond the root apex or has not reached it. It also happens that a canal is filled unevenly, with voids. In such situations the dentist decides whether observation is sufficient or intervention is needed. The reason may be different as well: the tooth hurts after treatment, and it is necessary to understand what is happening. Then the old material is removed partially or completely. The decision depends on the clinical picture and the X-ray. If the canal was sealed long ago and there are no complaints, sometimes it is left alone. But when there are signs of inflammation, retreatment is unavoidable. The dentist assesses the condition of the tissues around the root, and this helps determine whether repeat treatment is needed.
Pain after root canal filling is not always a sign of error. The tissues around the root react to the intervention, and this is expected. Let us break down where it is normal and where it is a reason to return to the dentist.
After root canal filling, an area of inflammation forms around the root apex. This is a response to instrumentation, to material extruded beyond the canal, or to remnants of infected tissue. The periodontal ligament reacts with swelling, and the tooth begins to ache when biting. Sometimes the material itself is to blame: paste or gutta-percha has gone past the apex, and the body perceives it as a foreign body. This reaction occurs more often with complex anatomy — curved, branching canals where the instrument does not reach the walls everywhere. If the canal is not filled to the end, bacteria remain in the unfilled section, and inflammation persists. The severity depends on the clinical picture: in one patient the discomfort resolves within a few days, in another it lasts longer. The dentist decides after an examination and an X-ray. Pain when biting that worsens at night, or swelling of the gum, is no longer normal.
The number of canals is not a constant value. It varies from tooth to tooth and even between neighbors in the mouth. Let's break down where to expect how many and why an X-ray decides more than an anatomical atlas.
| Tooth | Usual number of canals | What affects it |
|---|---|---|
| Incisors and canines | 1 | Root shape |
| Lower incisors | 1, less often 2 | Thin root |
| Premolars | 1–2 | Branching near the apex |
| Upper molars | 3–4 | A separate canal in the buccal root |
| Lower molars | 2–3 | Additional branches |
| Wisdom teeth | 2–4 | Highly variable |
A textbook gives average figures, but a specific tooth can disprove them. An upper molar sometimes carries a fourth canal, which is found only during treatment. A lower incisor sometimes has two narrow canals instead of one wide one. Anatomy is only a guide. The dentist decides based on the X-ray: a periapical image or a CBCT scan shows the number of canals, their curves, their length, and where one canal splits in two. This determines how many times the tooth will need to be accessed and which approach to choose. The patient asks how much root canal filling will cost: the price is made up of the number of canals and how passable they are, not a single flat rate. The warranty on fillings is also tied to how completely each canal could be treated: an untreated branch leaves a focus of infection, and the inflammation returns. That is why an X-ray before treatment is not a formality but a working map on which all further work is based. Sometimes the X-ray shows that a canal was not completely filled, and then retreatment is needed.
This question is debatable. The answer depends on how many walls of the tooth remain, what the chewing load is, and what the X-ray shows. There is no single rule: in one case a restoration is enough, in another the tooth may crack without a covering.
Sometimes a filling or an inlay is enough. If at least two walls remain after root canal treatment, and the tooth itself is not in the area of maximum chewing load, the dentist may suggest a restoration without a covering. Front teeth with thin edges cut food differently than molars, and there a filling lasts longer. The opposite also happens: the X-ray shows a crack, and then a filling will only delay the loss. An inlay is a separate situation: it replaces the defect but does not encircle the tooth. The decision is made based on the clinical picture, not on the rule "always a crown" or "always a filling." What is more important in a specific case is a question for the dentist who sees the tooth, not just the X-ray. Sometimes observation over time shows that the restoration is holding up, and then the question of a covering is revisited later.
The number of appointments is different for everyone. It depends on the anatomy of the tooth, the condition of the surrounding tissues, and how many canals need to be treated.
| Complexity | What it includes | Approximate number of visits |
|---|---|---|
| Simple case | One straight canal, no signs of inflammation | 1 visit |
| Moderate complexity | Two to three canals, moderate curvature | 2 visits |
| Complex case | Molar with four canals, retreatment | 2–3 visits |
| Complicated case | Infection beyond the apex, an intermediate stage is needed | 3–4 visits |
After root canal filling, the tooth remains a living part of the jaw but responds to load differently. Care comes down to gentle hygiene and reasonable chewing load.
A follow-up examination is not a formality but a way to see what the eye cannot. The dentist compares the condition of the tissues around the tooth with the baseline picture, assesses how the treatment area is healing, and checks for signs of inflammation at the root apex. Sometimes there are no complaints, yet the X-ray shows changes that require attention. That is why follow-up visits are scheduled at specific intervals — the exact timing depends on the clinical picture and is determined by the dentist. During the appointment, plaque is removed, the edge of the filling is checked, and the bite and contact with neighboring teeth are evaluated. If the tooth is weakened, a crown is discussed — but that is a separate decision, not an automatic consequence of root canal treatment. It is worth coming in even when nothing is bothering you: early changes are easier to correct. If pain when biting, gum swelling, tooth mobility, or bad breath appear, you should book an appointment earlier than the scheduled date.
Root canals are not a 'hole in the tooth' but a system of narrow passages. They are cleaned, disinfected, and sealed airtight. The filling on top merely restores the shape of the crown. If infected dentin remains inside or the canal is not filled along its entire length, the inflammation returns. That is why follow-up imaging is not a formality: it shows exactly where the canal space remains. Sometimes a periapical X-ray is enough, sometimes a CT scan is needed. The dentist decides based on the clinical picture. After root canal treatment, the tooth walls thin out and the enamel loses its support. A crown or inlay protects against fracture, but it is not always needed — it depends on how much tissue remains. Hygiene around such a tooth is routine: brush, toothpaste, dental floss. There are no specific dietary restrictions, except during the period while anesthesia is still in effect.
The number of visits, the choice between a filling and a crown, the need to remove old root canal filling material — these aren't a one-size-fits-all protocol, but a decision made for a specific tooth. The dentist looks at the X-rays, assesses the condition of the tissues around the root apex, the response to cold and heat, and the extent of coronal destruction. Sometimes the canal can be negotiated in a single appointment; sometimes several are needed. A narrow, curved canal, calcification, a broken instrument fragment inside — all of these change the course of the work. The patient can help: by honestly reporting pain, chronic conditions, medications being taken, and previous treatments of this tooth. If the tooth remains uncomfortable for more than a few days after root canal filling, it's not worth waiting — it's better to see the dentist and get an X-ray. A timely visit is easier than retreatment. A separate note should be made about teeth that have already been treated before: in those cases the dentist evaluates not only the canals but also the condition of the remaining walls.
The price depends on the number of canals in the tooth, how passable they are, the condition of the tissues around the apex, and the amount of work involved: sometimes only the canal needs to be filled, while in other cases the old material must first be removed and the canal retreated. X-rays, anesthesia, and restoration of the crown portion of the tooth after treatment are calculated separately. The final amount is given by the dentist during the examination, once they see the X-ray and understand the plan. You can view current prices in the prices section on this page.
Endodontic treatment is work on the root canals: the dentist removes the inflamed pulp, cleans and widens the canals, treats them with antiseptics, and fills them hermetically along their entire length. The cost depends on the number of canals, their anatomy — some canals are severely curved and narrow — and also on whether this is initial or repeat treatment. The price also includes follow-up X-rays, which are used to check that the canal is filled to the apex. The exact amount is given by the dentist after the examination, and you can see approximate prices in the prices section.
Root canal retreatment is the removal of old filling material from the canal when previous treatment was incomplete or unsuccessful. The indications vary: the canal was not filled to the apex, inflammation developed around the root over time, pain or a fistula appeared, and sometimes the tooth is being prepared for retreatment before a crown is placed. The procedure is more complex than initial treatment because the material must be removed without damaging the canal walls, and the entire cleaning process must be repeated. Afterward, the canal is filled again, and the tooth is restored with a filling or crown.
Building up a tooth with a filling is suitable when the damage is small and enough natural tooth structure remains to support the material. If the tooth walls are thin or the chip extends under the gum, the filling will not withstand chewing forces: it may break off, and the crack may spread to the root. In such cases, the dentist recommends a crown, which covers the entire tooth and protects it from fracture. What to choose in your case is decided by the dentist after an examination and X-ray — sometimes both options are possible, and then the choice depends on budget and prognosis.
The guarantee for treatment at our clinic depends on the type of procedure and is specified in the contract; it is valid provided the patient follows the doctor's recommendations and attends regular preventive check-ups. Root canal treatment is considered successful when the canal is sealed hermetically along its entire length, there is no inflammation around the apex, and the tooth does not bother the patient. This is confirmed by a follow-up X-ray and an examination several months after the procedure. If pain occurs during this period or a problem is visible on the X-ray, the doctor decides whether retreatment is necessary.
The price difference is primarily due to the number of canals: in incisors and canines there is usually one, while molars may have three or even four, and each requires separate treatment. The complexity of the anatomy also plays a role — curved, branched, or previously treated canals take more time and require additional X-rays. The restoration of the tooth after treatment is calculated separately: a filling, inlay, or crown. That's why no two cases cost the same, and the doctor provides the exact cost during the examination, while general guidelines are available in the pricing section.
Yes, root canal treatment is painless — the doctor uses local anesthesia, which completely blocks sensation in the treatment area. If the tooth is already inflamed and the anesthesia is less effective, the doctor selects a different medication or adds a nerve block, so discomfort during the procedure remains minimal. Mild soreness is possible after the appointment when the anesthesia wears off: this is a normal tissue response to the procedure and can be relieved with painkillers. If the pain is severe or lasts more than a few days, you should return for an examination — this can happen with incomplete canal cleaning or a flare-up.
At our clinic, the guarantee period depends on the type of procedure and is specified in the contract; it also covers root canal therapy and fillings, provided the patient follows the doctor's recommendations. For the guarantee to remain valid, patients must attend preventive check-ups and not delay treatment of adjacent teeth, since some complications are specifically related to untreated problems nearby. The guarantee does not cover cases where the patient failed to attend a follow-up appointment or disregarded the prescribed treatment. The doctor explains the exact terms before treatment begins and records them in the documents.
You can book by calling +7 777 911 07 83 — the clinic is open daily from 9:00 to 20:00, so you can choose a convenient time almost any day. The initial examination and treatment plan are free: the doctor examines the tooth, refers you for an X-ray if necessary, and explains how many canals need treatment and during which visits. If you have been to us before and know which tooth is bothering you, tell the administrator — this will speed up the booking. It's best to arrive a little early for your appointment to fill out the paperwork calmly.
If a root canal is not filled completely, the tooth should be examined by a general dentist: incomplete filling leaves a space where bacteria accumulate, and over time this causes pain, inflammation at the root apex, or a fistula. In such cases, the canals are retreated — the material is removed, the canal is cleaned again and filled along its entire length to the apex. Sometimes only one canal needs retreatment, sometimes all of them. The sooner you seek help, the higher the chance of saving the tooth without surgery, so don't delay your visit if pain or swelling appears.
We are open daily from 9:00 to 20:00, seven days a week. The clinic is located in Astana at 11/1 Abay Avenue. Phone for appointments: +7 777 911 07 83. Initial examination and treatment plan: 0 ₸.
Address: Astana, 11/1 Abay Avenue. Parking for patients is free. Phone for appointments: +7 777 911 07 83. Appointments are available daily from 9:00 to 20:00.
The warranty period depends on the type of work and is stated in the contract. The initial examination and treatment plan are 0 ₸. Appointments are available daily from 9:00 to 20:00.
Installments for 24 months with Jusan bank or 12 months with Kaspi. Initial examination and treatment plan: 0 ₸. Appointments are available daily from 9:00 to 20:00. Phone for appointments: +7 777 911 07 83.
The initial examination and treatment plan are 0 ₸. There is no separate fee for the first visit. The warranty period for the work depends on the type of work and is stated in the contract. Installment plans are available from Jusan bank for 24 months and from Kaspi for 12 months.
Parking is free. The clinic is located in Astana at 11/1 Abay Avenue. Appointments are available daily from 9:00 to 20:00. Phone for appointments: +7 777 911 07 83.
I had a filling placed, and they made sure it was painless. Everything went according to plan. Alexey answered my questions.
Came here on a colleague's recommendation, and they treated a cavity on a molar; the root canal was irrigated thoroughly and for a long time. They quoted the prices upfront, and nothing was added at the end — that's a whole separate story —. All in all, no regrets. I'm one of those people who asks again three times over — they were patient with me. Parking is in the courtyard, and I found a spot, just as agreed. They showed me the X-ray before and after the root canal filling. The contract and receipt were provided without me having to ask. They arranged an installment plan on the spot, no running around to banks...
Lechili karies na zhevatelnom. Plombu ne vidno, cvet sovpal. Kliniku rekomenduyu!
I didn't expect it to be completely painless at all, but one small complaint: we waited a bit longer for the appointment. I had a cavity treated on a molar. It seems to me that the people here simply love what they do...
The filling isn't visible, the color matches perfectly, and I've already gotten used to the idea that it's all behind me. The root canal was redone under a microscope, with anesthesia, and I didn't feel a thing. I put this off for about a year and a half. Now I only come here.
The tooth ached at night, and painkillers no longer helped. I ended up here by chance, I was nearby. They placed a filling and matched the color.
At another clinic they said the only option was extraction, but I wanted to save the tooth — so they placed a filling and matched the color (we had a good laugh about it at home later). The tooth doesn't bother me, no sensitivity to cold, and I've already gotten used to the idea that it's all behind me. These people know their stuff. They scheduled me at a convenient time, no "come at nine and wait." Shoe covers, a cup, a napkin — little things, but everything was there, the way it should be. They told me the price upfront, and nothing was added at the end. They worked with a rubber dam, so my mouth stayed dry and calm. They showed me the X-ray before and after the root canal filling — that's how it should be.
I kept putting it off because of work, never had the time, and that was that. What won me over was that they didn't push anything unnecessary. They placed a filling, matched the color, and polished until it stopped catching. Aset explains things calmly and to the point.
Otkladyvala iz-za raboty, vse bylo nekogda. Stomatologov ya ne lyublyu s detstva. Postavili plombu, podobrali cvet, s anesteziey, nichego ne pochuvstvovala
I initially just wanted to look around and compare prices. I had a filling placed, the color was matched, and the canal was irrigated thoroughly and for a long time. It seems like a small thing, but that's exactly what stuck with me.
Alexey didn't push and gave me time to think. I was treated for pulpitis over two visits. Not painful at all. In my opinion, the main thing is that they don't pressure you into a decision. The tooth doesn't bother me, and there's no reaction to cold. They worked with a rubber dam, so my mouth stayed dry and calm...
I spent a long time choosing a clinic and read reviews all over the city. They redid my root canal under a microscope in a single visit. I think the key is that no one here rushes you. The tooth doesn't bother me and there's no sensitivity to cold. The sterility is visible — the instruments were opened in front of me. The hallway doesn't smell like a hospital, more like something neutral. They gave me the contract and receipt without me having to ask, and I want to call that out specifically. They quoted prices upfront and nothing was added at the end. The anesthesia worked completely — I felt nothing, and that really won me over (we laughed about it at home afterward). There's parking in the courtyard and I found a spot — a small thing, but nice. They set up an installment plan on the spot, no running around to banks — the way it should be.
The tooth ached at night, and painkillers no longer helped. The tooth no longer bothers me, no reaction to cold, and it feels like my own. They placed a filling, matched the color, and polished it until it stopped catching. I ended up here by chance, I was nearby. I'll come back for a professional cleaning (I asked twice to confirm). Parking is in the courtyard, I found a spot)
I booked an appointment on the recommendation of a colleague from work and didn't think they would manage it in a single visit. . . They placed a filling, matched the color, with anesthesia, I felt nothing.
Proshlyy vrach pereehal, nado bylo iskat novogo Postavili plombu, podobrali cvet. Zub ne bespokoit, reakcii na holodnoe net, poka bez narekaniy. Ostalas dovolna.
I was scared until the very last moment. I took a long time choosing and now I understand it was worth it. In short: good. I was treated for pulpitis, two visits.
Had a filling placed and the color was matched, all in a single visit. The contract and receipt were provided without me having to ask!
I spent a long time choosing a clinic and read reviews all over the city. They redid a root canal under a microscope. It was quick (I asked twice to confirm). The filling isn't visible, the color matches.
The filling isn't visible, the color matched, in my opinion the price is fair for this kind of work. I was treated for pulpitis, two visits. Margarita is the kind of doctor you come back to!
Root canal retreatment was performed under a microscope. There was also an inconvenience — the parking lot was full. A minor thing.
My previous doctor moved away, so I had to find a new one, and I was being treated for pulpitis, two visits. The receptionist called back when she said she would — I want to note that separately. Galiy stayed in touch even after the appointment. Five out of five. They answered my questions after the appointment too, via messenger — thanks for that as well, that's a whole separate story. The office is bright, the equipment is new — a small thing, but a nice one.
Had a root canal retreatment under the microscope. The tooth doesn't bother me, no sensitivity to cold, which is exactly what I wanted. Sterility is out in the open, instruments were opened in front of me. I have a low pain threshold, and they took that into account!
After previous treatment, I had no confidence. I had my tooth treated, and they didn't hide that there was a choice. Alicia clearly explained my situation. The next day she called and asked how I was doing. Indeed. My tooth doesn't bother me. During the consultation, everything was written down on paper for me. Scheduling was easy. The instruments were opened in front of me. The room is clean, no smell.
I initially just wanted to look around and compare prices — we came from another district, and Aset explained why it wasn't worth delaying. We had a cavity treated on a molar!
They re-treated the canal under a microscope, irrigated it for a long time and very thoroughly, the filling is invisible, the color matches perfectly, there's nothing to find fault with (I couldn't believe it myself). I've already recommended them to friends!
I had no confidence after previous treatment. Yerzhan clearly explained my situation. I had my tooth treated, and he showed me the image on the screen. Everything went according to plan. During the consultation, he wrote everything down on paper for me. He was punctual.
Strange, but I wasn't even tired after the appointment — I would come back here with a second tooth too. They treated a cavity on a molar, and the canal was rinsed long and thoroughly. Alexey told me right away what to expect.
I hadn't been to the dentist for about three years after the pandemic. I thought it would take longer. It was just like that. Alexey showed me everything on the X-ray (I asked him to repeat it twice). They treated a cavity on a molar and polished the filling at the end. The anesthesia worked completely, I didn't feel a thing — a small thing, but nice. My previous experience was worse, so I have something to compare it to. One nitpick: I had to ask twice about the timeline.
Treated caries on a molar; the filling was polished at the end. The tooth does not bother the patient, and there is no sensitivity to cold.
Had a filling placed, the color was matched, with anesthesia, didn't feel a thing. In my opinion, the price is fair for this kind of work. Parking in the courtyard, found a spot, I'll note that separately. Thanks to the whole team. The hallway doesn't smell like a hospital, but like something neutral, I'll note that separately. They told me the prices upfront, nothing was added at the end, just as agreed. They messaged me the next day, asked how I was feeling, just as agreed. Shoe covers, a cup, a napkin — little things, but everything was there.
The night pain stopped right after the first visit. I had a cavity treated on a molar.
My previous dentist moved away, so I had to find a new one — that's a whole other story —. They redid the root canal under a microscope and polished until it stopped catching. You can't even see the filling, the color matches perfectly. I booked my family here too. There's parking in the courtyard, and I found a spot — that was never the case anywhere else. Shoe covers, a cup, a napkin — little things, but everything was there. They took me right on time, no waiting.
At first I just wanted to have a look and get a price estimate — the tooth wasn't bothering me, no sensitivity to cold. The root canal was redone under a microscope, with anesthesia, I didn't feel a thing. I came on a colleague's recommendation.
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Message us on WhatsApp or call — the clinic is open daily from 9:00 to 20:00. The initial consultation and treatment plan are free (0 ₸), and parking is free.