Frequently Asked Questions

Endodontics is a branch of dentistry recognized by the American Dental Association involving treatment of the pulp (root canal) and surrounding tissues of the tooth. When you look at one of your teeth in the mirror, what you see is the crown. The rest of the tooth, hidden beneath the gum line, is called the root. Though the outer portion of the root is a hard tissue called dentin, the inside channel or "root canal" contains a pulp of soft tissue, blood vessels and nerves. Bacteria that are introduced into the pulp as a result of tooth decay, periodontal disease, tooth fracture or other problems, can severely damage the pulp. When that happens, an endodontic specialist removes the diseased pulp to save the tooth and prevent further infection and inflammation. After successful endodontic treatment, the tooth continues to perform normally.

No. While x-rays will be necessary during your endodontic treatment, we use an advanced, non-film, computerized system called digital radiography. It produces radiation levels up to 90% lower than those of low dose conventional dental x-ray machinery. These digital images can be optimized, archived, printed and sent to co-therapists via e-mail or CD/DVD.

Again, there's no need for concern. We adhere to the rigorous standards of infection control advocated by OSHA, the Centers for Disease Control, and the American Dental Association.

When your root canal therapy has been completed, a record of your treatment will be sent to your restorative dentist. You should contact your dentist’s office if a follow-up restoration is recommended within a few weeks of your visit with us. Your dentist will decide what type of restoration is necessary to protect your tooth. It is rare for patients to experience complications after routine endodontic treatment or microsurgery. If a problem does occur, we are available at all times to respond.

After Endodontic Treatment:

When endodontic treatment has been completed you will receive specific, verbal and written instructions particular to your clinical situation. But in general, once root canal therapy has been performed, the root canal system has been permanently filled. However, the outer surface is most often sealed with a temporary restoration. A follow-up restoration must be placed to protect your tooth against fracture and decay. Please telephone your restorative dentist for an appointment to have this accomplished. A report of the treatment provided will be sent to your restorative dentist. Included in your treatment is a follow-up examination to evaluate the progress of healing several months after initial therapy. This appointment will require only a few minutes and no additional fee will be charged for this follow-up visit. Please call, or expect a call, to schedule a follow-up appointment approximately 6-months after root canal therapy.

Digital Radiographs:

Radiographs are taken using digital imaging. This technology reduces the patient’s exposure to radiation by up to 90%, increases accuracy, eliminates harmful chemicals, and shortens procedure time. Images are displayed on a computer monitor, rather than traditional dental film, providing patients the opportunity to see and understand our diagnosis. We’ve found that patients are more comfortable pursuing treatment when they can see why it is necessary. These images are also printed, archived, and sent to your dentist.

Operating Microscopes:

In addition to digital radiography, we utilize special operating microscopes. Magnification and fiber optic illumination are helpful in aiding the doctor to see minute details inside your tooth. Also, a tiny video camera on the microscope can record images of your tooth to further document the doctor's findings.

Apex Locators:

We also employ advanced electronic root-length measurement technology to verify the dimensions of each root canal. This is accomplished by connecting an instrument to a device that corresponds to the tactile sensation of the instrument to the device’s meter, once the device is at the apex (end) of the root canal; the meter provides a signal to indicate the precise length of the root. The apex locator allows us to be efficient and accurate during each procedure.


Endodontics Ltd. is very pleased to be working exclusively with Palmetto Oral & Maxillofacial Surgery. In some complex cases, two dimensional x-rays are not definitive; therefore, Palmetto Oral & Maxillofacial Surgery provides 3-D high definition facial imaging to evaluate and treat the case

Most root canals are completed in a single appointment. There are exceptions. Highly infected teeth discovered on the first visit will have an anti-bacterial paste placed within the tooth to allow thorough disinfection before filling the root canal on the second, shorter visit. This second-level disinfection process helps ensure success, and minimizes likelihood that any further treatment will be needed.

First, recognize that you are not alone. Many people fear the idea of root canal therapy since they don’t know exactly what to expect or have heard negative comments.

Second, consider the fact that people often lump the memory of their dental or tooth pain in with the root canal therapy itself. The indication for root canal therapy is usually an excruciating tooth ache. In contrast, the treatment is pain relieving! So allow us to put you at ease, and take care of your endodontic needs painlessly, with precision and compassion.

Third, carefully weigh your options. The most common alternative to having a root canal performed is extraction (i.e. having your tooth pulled). In carefully-controlled clinical studies, patients who have had extractions report more pain and pressure during the extraction and more post-operative pain and complications after extraction than patients who have had root canal therapy performed. With root canal therapy you will still have your natural tooth. By extracting it you will not.

While root canal therapy is usually preferable to extraction (having your tooth pulled), there are conditions and situations which do justify extraction over root canal therapy. We can give you an accurate and unbiased professional opinion in conjunction with your restorative dentist. Bridges are a good alternative to replace missing teeth.

What patients are saying...

  • Dr. Cohen is amazing and made my experience a breeze. He put my mind at ease and made me comfortable from start to finish. He has done two root canals on me so far and God forbid I ever need another one, he will be first on my speed dial. Thank you Dr. Cohen for being the BEST "tooth saver" EVER! Thanks, Angie Thomas
    - Angie Thomas
  • Amazing team. The entire procedure was unlike anything I had expected. Dr. Cohen is very good at what he does and his team did everything possible to put me at ease. I wouldn't go anywhere else.
    - Samantha Brill
  • Best dentist I ever had. Saved my tooth and saved me pain. I was very impressed with his bedside manner and would recommend to anyone.
    - aydrea
  • Dr. Cohen and his staff were fantastic. This was my first ever procedure, and they were very comforting and professional. While I hope to not need their services again, I will highly recommend them to others
    - Will Freeland
  • Dr. Cohen is indeed the "Tooth Saver." My dentist was talking about an implant or another bridge if the tooth could not be saved. I was very worried...no need! The procedure was totally painless and amazingly quick. I lived to tell the tale! (in case you have not seen Dr. Cohen's creative and lighthearted commercial) Thanks, Dr. Cohen and staff. I really appreciate the positive atmosphere, too. Very important to me.
    - Deb Basha
  • Dr. Cohen did an exceptional job with my root canal, i did not feel one tinge of pain during the whole procedure. During my last root canal with Dr. Kotz I felt a moderate level of pain even with the nitrous and injections. I would reccomend Dr. Cohen to my friends and family his skills are phenomenal , and he is very nice and professional.
    - Amberly Robinson
  • Great experience! Would highly recommend Dr Cohen & staff to all who need his care. Thanks!
    - Mike
  • Dr. Cohen is supurb and definitely in the elite who practice. I phoned his office number on Monday morning at 7:45 and he took me in before noon without hesitation to assess my problem. This is extraordinary practice. Can't say enough about this practice!
    - Pamela B.
  • Dr. Cohen just completed a re-do for an old root canal and his work was exceptional! His patience, tenacity, professionalism and sensitivity is to be commended! Absolutely painless!!!!!!!! Thank you, Dr. Fischer 843-813-3223 (Permission for any patient to call)
    - Dr. Barry Fischer
  • The staff and Dr Cohen were extremely professional and courteous. They made an uncomfortable experience that I've been putting off and was nervous about, seem easy. I will definitely recommend his practice to anyone in need of his services.
    - Vicki Golding
  • No one wants a root canal but if you need one I can't think of a better place to get the Best care and service! Once the procedure was done I had no pain and everyone was very nice and knowledgeable. I highly recommend Dr. Cohen
    - Robin feerst
  • I had to get my first root canal (on my birthday!), and was somewhat apprehensive about what to expect. Dr. Cohen and his staff made the experience quick and painless, and thoroughly explained everything and answered any questions I had. The whole process took no more than 30 minutes, and was absolutely painless. My tooth feels so much better. Thank y'all!
    - Anna
  • Spoke to your receptionist yesterday about Charleston Animal Society. Would love to send you some info about our huge fundraising event in the Fall that over 5,000 attended! I love that you have a therapy dog in the office! I saw this on a friend's Facebook page. Would love to connect. Have a great night!
    - Elena Lawson
  • Who has fun getting a root canal? I did this morning! Dr. Cohen saw me on a minute's notice from my regular dentist, diagnosed the problem and we did the first stage of the root canal all in one sitting. He uses a simple two stage injection system for the Novocaine shots. In truth the first small injections are "really" only a little prick and the followup "real" injections "really" did not hurt at all. He also used a process using a dam and "cool" sunglasses to make the procedure relaxing. I think if I had tried, I could have fallen to sleep. I'm 68 years old and have gone through a lot of pain in the dentist chair, but none with Dr. Cohen. This guy is good!!! You will be happy you chose him.
    - Tom Eddins
  • I'll make this short and sweet... I was experiencing severe pain after a simple crown procedure and was redirected to the office of Dr. Jason H. Cohen, DMD in Mount Pleasant. Professionalism and complete empathy were not only shown by his staff but also with Dr. Cohen himself. He could see instantly my anxiety about getting this procedure ( a root canal ) done and was very informative and reassuring that the pain level would be low or not at all. I felt great when I left, no pain, very short procedure. Next day, still no pain! :) So happy!
    - Lynne Carbonero
  • I am from New York and was traveling to South Carolina for my son's wedding. The pain in my jaw needed attention. I was in dire need of a root canal. Dr. Cohen came to my rescue. I had great service from his staff from the moment I called with my problem. Thanks to his expertise I had my root canal and made it to the wedding festivities feeling great. They saved the day. I have many thanks to this practice!
    - Dawn Dobson
  • I highly recommend Jason if you need a root canal. He is very gentle and caring as well as being really great at his work. Lynn
    - Lynn Rutledge
  • I've had a number of root canals, and this was my second root canal with Dr. Cohen. In my experience, Dr. Cohen is the best endodontist I've worked with. He is very experienced and skilled, uses the latest technology, and he has a great team. He (and his team) care about patients - it shows. They tried hard to be sure I was as comfortable as possible. I'd highly recommend Dr. Cohen to anyone needing endondontic work. Dr. Cohen and his team make root canals not so bad!
    - Maxwell Steinhardt
  • Went to Dr. Cohen for root canal and Dr Cohen found my pain was coming from another tooth. His team scheduled me for surgery later that afternoon. Dr Cohen and his asst. Courtney did an excellent job caring for my tooth. I highly recommend Dr. Cohen and his team.- T S Calhoun jr.
    - Thurman Calhoun Jr
  • Excellent experience in every phase of my treatment. Dr. Cohen is dedicated to provide highest quality care, with constant attention to patient comfort and patient education and communication.
    - Tim Leber
  • Dr Cohen and his office staff are excellent. When I had extreme sensitivity and painful throbbing I knew I needed a root canal procedure. He got me on the schedule that day and took care of me. He uses a painless local anesthesia that helps get this job done. Thank you!
    - Lynne Nemeth
  • I came in thinking the worst and came out feeling the best. You walk into this house and you are walking into a professional, kind and warm atmosphere.
    - Veronika Fischer
  • Dr Cohen is an amazing Endodontist! He performed a couple of procedures for me over a few weeks and I could not have been happier with the outcome. The procedures went very well and I actually fell asleep during one of them . Of course , Sugie was a superstar and kept me calm and distracted while sleeping on my lap. In return, I was more than happy to get Sugie a bag of super yummy healthy treats. I am so impressed with Dr Cohen and his staff that I am calling tomorrow to schedule an appointment for my mom who needs an evaluation for endodontal work! Thank you for being an Outstanding Team and Practice .
    - Gene Phillips MD
  • Well, all I can say~~~~This was My first Time~~~~Dr. Cohen, Most definitely knows what he's Doing!!!! #toothappy
    - Stacey Chatelain (Goble)
  • Dentists and orthodontists stress me the heck out, and give me high blood pressure. Dr. Cohen and his team were absolutely amazing! They were extremely friendly and helpful. They have a helpful dog assistant named Shuga, and gave me headphones and a tablet to listen during my procedure. Which was easy, and lasted less than 30 minutes! I am thoroughly impressed, and have never been to such a wonderful office. I never leave reviews either, but I just can't say enough about how spectacular they were. I will be highly recommending this endodontics office to friends and family. Thank you!
    - Stella Rounsefell
  • Dr. Cohen and his staff saved my weekend! I was visiting Charleston during the holiday weekend when I tripped and broke 3 of my front teeth during a run. Even though his specialty is root canals, Dr. Cohen agreed to work me in on a holiday Saturday and literally rebuilt my front teeth. Not only did he save my smile, I was able to get on with my weekend! His staff was super friendly and helped put me at ease and did everything they could to make sure I knew what was going on at all times. I wish I hadn't tripped, but since I did, I'm glad I found Dr. Cohen to help!
    - Edee Wilcox
  • Everyone was wonderful and pleasant. Dr. Cohen was very patient and kind, but shouldn't make me laugh when my mouth is wedged open and he's working.
    - Doreen Ducey
  • I had to get a root canal re-done and no other specialist could fit me in with my busy schedule. Dr. Cohen and his team made time in their own busy schedule work on my mouth as soon as possible. I had encounters with over four of his staff members and all were outstanding! Due to living in other states, I have visited many dentist offices and this one exceeds all of them, by far. Thank you guys!
    - Lindsay
  • I had a great experience here. All of the staff made me feel really comfortbale and answered all my questions I had. The procedure was easy and quick. I recommend!
    - Amanda
  • Had a root canal re do today for abscess--and was terribly anxious about it! The procedure was such a breeze! Dr Cohen and his staff are amazing--the numbing was on point, and I never felt a thing! Well done, this will be the only place I ever come for these procedures!
    - Terri Whalen
  • My experience with Dr. Cohen was AMAZING! The root canal was a breeze and they even have a therapy dog Sugar who sat on my lap the entire time! The staff was polite and professional and made me feel comfortable! If you need a root canal go see Dr. Cohen!!
    - Leisa Gibson
  • Seeing as I am one of the biggest wimps when it comes to dental procedures, especially root canals, Dr. Cohen and his staff completely eased my fears! Sugie, their office dog, helped tremendously as well! I would recommend Dr. Cohen and his staff to anyone!! Thank you guys so much for making this as easy as you did!!
    - Kim Allison
  • Simply the BEST!!!! Highly recommended! Dr. Cohen is AMAZING!!!! He is so kind, talented, wise and personable! His Assistants are very compassionate, professional and gentle. An excruciating ordeal is now a happy ending! The office is highly efficient and high-tech......no waiting here and extremely accommodating for emergencies and problems. If only all medical offices could model Dr. Cohen's practice!!! I need to mention Sugar, the Emotional Support Dog who happily greets you when you enter the office!! She is super sweet and extremely adorable!!!!!! She will stay in the chair with you during the procedure if you request her support. Thank you Dr. Cohen, Courtney, Kira, Marissa and Laura!!!!
    - Paula S
  • It went extremely well today. I arrived at 1155 am and left ( pain free ) at 110 pm. I called on a late Saturday afternoon after looking them up on their excellent website at endodonticsltd.com and was given an immediate next day morning appointment. They actually discovered the pain and decay was from a different tooth than what was thought by my local dentist !! Thank goodness they are so meticulous and careful and double check everything with their Own evaluations. Very smart and friendly support staff did an amazing job working to care for me over their own lunch hour ! I did not even feel the numbing shots , I swear it was completely painless to me. The procedure must have taken 30 or 40 minutes which again is amazing for a complete root canal , but even more satisfying is that it felt more like 15 or 20 minutes as I was very relaxed in their comfy and friendly environment. I have been here several times before and I therefore knew to expect Excellence , however I did not think it was possible to over exceed the previous outstanding experiences that they have done for me and my family .... but they did ! This time I brought a couple yummy doggie snacks and literally fed sweet " Sugie " dog while he was working on my tooth canal. I can summarize to say that I have never been better taken care of , consistently from year to year and from start to finish , then with Dr Jason H Cohen DMD and staff in any field of medicine or dentistry/endodontristry and that is coming from the opinion of a MD physician that holds more than 35 Medical Licenses and has seen a lot of patient care. Thank you Dr Cohen , support staff and Sugie for being so awesome ! You guys ROCK !! Sincerely , Dr Phillips
    - W Gene Phillips II MD
  • Dr Cohen and his staff were wonderful and welcoming when I went in to get a root canal. They got me in same day because of tooth pain. And their pup Sugar was very helpful in keeping me calm through the procedure, thanks again you guys are great
    - Bobby Allison
  • Dr. Cohen and his staff are awesome!
    - Carrie Brooks
  • The staff are wonderful. They make you comfortable from the minute u open the door. Sugar is a beautiful grey lab who will comfort you. Dr Cohn is terrific. He doesn’t want his patients to feel any pain whatsoever. He’s kind and let’s you know what is going on at all times. I wouldn’t go to anyone else.
    - Karen T. Weeks
  • My son had a GREAT experience with Dr. Cohen and his staff. The service was phenomenal. Every person we spoke with was very polite and helpful. Dr. Cohen made sure my son was very comfortable and engaged. I highly recommend Endodontics LTD to any parent whose child has to get a root canal.
    - Kaovauntae Legare
  • I wanted to express my appreciation for Dr. Cohen. I was up all night with tooth pain and called him at 7AM. Though I had never met him before, he came in on a Saturday outside of regular office hours to perform an emergent root canal. Now I am pain free. A big thank you!
    - William Largen
  • OUTSTANDING!!! Great Endodontist, my son was very nervous before his appointment, after meeting the staff including Sugar her was very comfortable. Procedure went great. Highly recommend Dr. J Cohen.
    - The Bingham's
  • OUTSTANDING!!! Great Endodontist, my son was very nervous before his appointment, after meeting the staff including Sugar he was very comfortable. Procedure went great. Highly recommend Dr. J Cohen.
    - The Bingham's
  • Dear Dr. Cohen and Staff I’d like to thank you for making my root canal procedure one of the most surprising, and relaxing procedural experiences. I was truly scared when I found out I had to have this procedure done. So many horror stories out there about this being a painful, uncomfortable event. Well I must say it was quite the opposite. I never felt a thing. From the injections to the recovery after the procedure, absolutely no discomfort. You and your staff made this an event that I will talking about and drop your name if they need this sort of treatment. Not anything like I expected. Thank you again. See you in a year for my follow up.
    - Dave Westberg
  • Absolute best Endodontist! Very thorough and genuinely cares for their patients! I love Sugar the therapy dog! Best experience ever!
    - Susie Vahala
  • Thank you Dr. Cohen and your staff for such great care you gave us today. I do recommend Dr. Cohen and his staff. Their work is gentle, quick and thorough. They genuinely care about each patient.
    - Audrey Miller
  • Dr. Cohen and his staff are fantastic. They put me at ease (I am afraid of dentists) and procedure was executed without pain, as promised! I highly recommend them!
    - donna hand
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  • I cannot say enough good things about my experience with Dr. Cohen & his staff. I live more than 2 hours away and I wouldn't think of going anywhere else if I need another root canal! It's never your favorite thing to do, but if you have to do it, then Dr. Cohen is the one you will want. Thanks to the whole staff, I really appreciate you!
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    - Luke Lewis
  • Dr.Cohen and all his staff are outstanding. Dr.Cohen is very knowledgeable and explains all procedures and puts you at ease. I had 2 root canals and pain free and easy with Dr.Cohen. Love Sugar the therapy dog and special shout out to Kira and Kirsten.
    - Page McCorkle
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  • I was pleased with every aspect of my recent visit to your Mount Pleasant SC office. Unfortunately there was nothing more we could for this tooth but past appointments and results earlier this year have been outstanding and commendable.
    - John B Hart
  • I had a root canal done and the procedure went well! All of the staff were very nice and helped put you at ease! I would use them again if the arose!
    - Cindy Grace
  • Dr. Cohen and his team are great. I was referred to Dr Cohen by my dentist because I required a precision root canal. Dr. Cohen had the equipment and expertise to perform the procedure with no pain at all. He we has a great team working with him. A+
    - David Conole
  • I needed 2 root canals performed and was quite apprehensive. Dr. Cohen explained the process clearly and was very reassuring. (A previous root canal in New York was quite painful). The procedure was painless and uneventful. Dr. Cohen and his staff are very friendly, caring and professional. Excellent dentist. Highly recommended. Thank you. Wendy Schell
    - Wendy Schell
  • Dr Cohen and his staff are friendly and professional. I highly recommend!
    - Kristi Meeuwse
  • Dr. Cohen and his team were outstanding in all aspects of my visit, would definitely recommend them to anyone needing expert assistance.
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