Canker sores, cold sores, and mouth sores: What's the difference?

At Smile Works, we know many people have experienced some form of mouth sores or irritation. Some mouth sores are harmless and go away on their own after a few days, while others are more serious and should not be ignored. Mouth sores occur for many different reasons, but bacterial infections, viruses, or funguses often trigger them. The best way to tell the difference between a canker sore and a cold sore is that canker sores occur inside the mouth while cold sores occur on the outside the mouth.

The most common mouth sores are:

Canker sores: A non-contagious, small, grayish ulcer with a red border, canker sores appear inside the mouth. While outside factors such as stress, fatigue, or allergies may increase the chances of developing a canker sore, most health experts believe they stem from bacteria or a virus that attacks the immune system. Canker sores typically heal within a week or two.

Cold sores: Also called fever blisters, cold sores are contagious groups of fluid-filled blisters that often erupt around the lips and sometimes under the nose or around the chin. Cold sores are the result of the herpes simplex virus, and once infected, the virus remains in the person’s blood stream.

Leukoplakia: A potential warning sign of oral cancer, leukoplakia is a premalignant lesion that appears as a white patch on the inside of the mouth, tongue, or gums. The lesions, which are caused by excessive cell growth, usually afflict those who smoke tobacco. the doctor may choose to have the lesion biopsied if the outbreak appears severe.

Oral candidiasis: Also called oral thrush or moniliasis, this condition is caused by the overgrowth of a type of yeast called candida. Common symptoms of oral candidiasis include white spots inside the mouth and on the tongue, redness or discomfort in the mouth area, sore throat,difficulty swallowing, and cracking at the corners of the mouth. It is important to visit the doctor if you have oral candidiasis. If left untreated, it may infect your bloodstream, which can be very dangerous. Healthy adults do not usually get thrush, and the condition is most often seen in infants, the elderly, patients undergoing chemotherapy, or people with AIDS or other diseases that are known to weaken the immune system.

Should you have a mouth sore that lasts a week or longer, we encourage you to give us a call and schedule an examination at our PLAIN CITY, Ohio office.

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Smile Works Family Dentistry

Monday:

9:00 am-6:00 pm

Tuesday:

8:00 am-5:00 pm

Wednesday:

8:00 am-5:00 pm

Thursday:

8:00 am-4:00 pm

Friday:

Closed

Saturday:

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Testimonials

What Our Clients Say About Us

  • "Dr. Gray and her team are exceptional, and I have recommended her to family and friends. For our family of 7, they have provided care for adults and kids with comfort and skill, from cleanings to fillings and a recent crown on my 8 year old daughter. Our kids actually love going to the dentist, which speaks volumes! I highly recommend Smile Works!"
    Thomas B.
  • "Very thorough and knowledgeable, they always show you in pictures and on x-rays if you have any cavities so that you can see them for yourself rather than just going by their word. Dr Gray and Jess are very gentle when getting any work done. Shelley does a wonderful job at fillings and Debbie up front is amazing at figuring out your dental benefits and cost so you're never surprised by the cost of anything!"
    Jordan L.
  • "Fantastic! Dr Gray and her staff have cared for our entire family since she opened this practice. She is very thorough and gentle. Our kids actually love going to the dentist. I highly recommend her to all of my friends."
    Ann B.
  • "It's always a great experience, the staff are very patient with answering my questions and very informative!"
    rabspa
  • "Dr. Gray and the entire staff at Smiles Works are amazing! Very thorough and explained everything in detail. If you are in need of a dentist I highly recommend Dr. Gray and the talented team at Smile Works."
    Jesse M.