Root canal · Sterling, VA
A root canal takes the pain out, not the tooth
The procedure has a worse reputation than almost anything else in dentistry, and the reputation belongs to the toothache, not to the treatment. By the time most people have a root canal they have already had the bad part.
What follows is what is actually removed, why the tooth stays in your mouth afterwards, and what the visit is like.
The mechanism
What is inside a tooth, and what comes out
A tooth is not solid
Under the enamel and the dentin there is a hollow space running down the middle of the tooth and out through each root. That space holds the pulp: nerve tissue, blood vessels and connective tissue.
The pulp does its important work while a tooth is forming. In a fully grown tooth it mostly reports sensation. That is why a tooth can lose it and carry on working.
Why it hurts so specifically
When decay, a crack or an old failing filling lets bacteria reach the pulp, the tissue inflames. It is sealed inside a rigid chamber with nowhere to swell, and the pressure has nowhere to go.
That is why the ache is deep, hard to point at, and worse lying down. It is also why it can stop suddenly and mean nothing good. A pulp that dies stops sending signals, while the infection carries on spreading toward the bone.
What the treatment removes
A root canal removes the pulp and cleans the canal it sat in. Dr. Tarek shapes the canal, disinfects it, and fills the space with a sealing material so bacteria cannot re-colonise it.
The enamel, the dentin and the root all stay. Those are the parts doing the structural work, and they are the reason the tooth can keep functioning for years afterwards.
Why saving it beats replacing it
A natural root is held in the jaw by a ligament that senses pressure and lets the tooth move a fraction under load. Nothing manufactured reproduces that.
Keeping your own root also keeps the bone around it loaded, which is what stops that bone resorbing. Replacing a tooth is a good answer when it is the only answer. It is rarely the better answer when the tooth can be kept.
The sequence
What the visit actually involves
- 01
We find out whether the pulp is the problem
An exam and an x-ray, often with a cold test or a gentle tap. That tells an inflamed pulp apart from a cracked cusp, a gum problem or a sinus. Treating the wrong thing is the most common reason pain does not resolve.
- 02
The tooth is numbed properly first
An infected tooth can be harder to numb than a healthy one, so this step gets the time it needs. You should feel pressure and no pain. If you feel anything sharp, we stop and add more.
- 03
The pulp comes out and the canal is cleaned
Dr. Tarek opens the top of the tooth, removes the pulp, and shapes and disinfects each canal. Front teeth usually have one. Molars often have three or four, which is why a back tooth takes longer.
- 04
The canal is sealed
The cleaned space is filled and sealed so nothing can get back in. Where there is infection at the tip of the root, treatment is sometimes staged across two visits with a medicated dressing in between.
- 05
The tooth gets a proper covering
A back tooth that has had a root canal has had material removed from the middle. It needs a crown to stop it splitting under a bite. This is not an upsell; it is the step that decides whether the root canal was worth doing.
At the practice
The exam decides, not the symptom
Two different problems produce almost the same ache, and only one of them is treated with a root canal. A cracked cusp, a failing filling, gum infection and sinus pressure all send patients in convinced they need one.
So the visit starts with finding out. We would rather tell you the tooth does not need this than treat it because you arrived expecting it.

Records here are digital. A 3D scan shows the shape and number of canals before treatment starts. That matters most on molars, where an unfound canal is the classic reason a root canal fails years later.
Comfort options are discussed before anything begins, and you can stop the appointment at any point by raising a hand.
What it costs
The number you should ask for
What a root canal costs depends on which tooth it is. A front tooth with one canal is a shorter appointment than a molar with four, and the fee follows the work.
Ask for the number that includes the crown, because a root canal quote on its own is not the cost of finishing the tooth. Comparing one practice's root-canal-only fee against another's root-canal-and-crown fee is how people end up surprised.
We file insurance, and most plans cover a share of endodontic treatment before the annual maximum runs out. You get the full figure in writing after the exam, along with what we expect your plan to pay.
How most guests pay
Financing partners are on financing options, and the Membership Club covers preventive care for guests without insurance.
Being straight with you
When a root canal is the wrong answer
A tooth split vertically through the root cannot be saved by cleaning the canal. Neither can one with so little structure left above the gum that nothing can be built onto it.
In those cases the honest options are removing the tooth and, if you want to replace it, an implant. Dr. Tarek places and restores implants here, so that conversation happens in the same building rather than as a referral.
We will tell you which situation you are in before you commit to anything.
Questions guests ask
Next step
If a tooth is keeping you awake, call
An exam tells us whether the pulp is the problem, and knowing is better than guessing at two in the morning. Bring your insurance card and we will check what your plan covers before anything is scheduled.
