Canker sores, also called aphthous ulcers, are small, shallow lesions that develop on the soft tissues in your mouth or at the base of your gums. Unlike cold sores, canker sores don't occur on the surface of your lips and they aren't contagious. They can be painful, however, and can make eating and talking difficult.

1. Aphthous Ulcer
Nikki Denton
[Biomedical- Project 1].
2019

2. Aphthous
Ulcer
AKA…..
Canker
sores
- A small,
shallow
inside the
mouth or at
the base of
the gums.

3. Recurrent Aphthous Stomatitis [Digital image]. “Http://Lataihomoeopathicclinic.com/Dehu-Road/Aphthous-
Ulcer.html.” Aphthous Ulcer Homoeopathy Treatment/Doctor/Clinic/Center in Dehu Road | Latai Homoeopathy
Clinic Dehu Road, lataihomoeopathicclinic.com/dehu-road/aphthous-ulcer.html.
 Ulcers are frequently
 painful & sensitive
 are usually found the movable part
of mouth such as tongue or inside the
lining of lips & cheeks & base of gums-
Dehu Clinic

4. They form inside
your mouth
• on or under your tongue,
• inside your cheeks or lips,
• at the base of your gums,
• or on your soft palate.

5. What causes canker sores?
The exact cause of most canker sores
is unknown.
Stress or tissue injury is thought to be
the cause of simple canker sores.
Certain foods -- including citrus or
acidic fruits
Sometimes a sharp tooth surface or
dental appliance
This Photo by Unknown Author is licensed under CC BY-NC-ND

6. Some cases of complex canker
sores are caused by an
underlying health condition,
such as an:
 impaired immune system;
 nutritional problems, such as vitamin B-12,
zinc, folic acid, or iron deficiency;
 or gastrointestinal tract disease, such
as celiac disease or Crohn's disease.

7. Color, size, signs and symptoms
• round or oval with a white or yellow
center and a red border.
• You might notice a tingling or
burning sensation a day or two
before the sores actually appear.
• There are several types of canker
sores, including minor, major and
herpetiform sores.

8. Herpetiform canker sores are
uncommon and usually develop
later in life, but they're not caused
by herpes virus infection
. These canker sores:
• Are pinpoint size
• Often occur in clusters of 10 to 100 sores, but may
merge into one large ulcer
• Have irregular edges
• Heal without scarring in one to two weeks

9. 25 years old female with major aphthous ulcer on the upper lip [Digital Image]. “Http://Lataihomoeopathicclinic.com/Dehu-
Road/Aphthous-Ulcer.html.” Aphthous Ulcer Homoeopathy Treatment/Doctor/Clinic/Center in Dehu Road | Latai Homoeopathy Clinic Dehu
Road, lataihomoeopathicclinic.com/dehu-road/aphthous-ulcer.html.
 25 years old female with major
aphthous ulcer on the upper lip

10. Recommended
treatment.
Topical products
Benzocaine (Anbesol, Kank-A, Orabase, Zilactin-B)
Fluocinonide (Lidex, Vanos)
Hydrogen peroxide (Orajel Antiseptic Mouth Sore
Rinse, Peroxyl) (n.d., 2018).

11. Recurrent Aphthous Stomatitis [Digital image]. (n.d.). Retrieved from https://www.merckmanuals.com/professional/dental-
disorders/symptoms-of-dental-and-oral-disorders/recurrent-aphthous-stomatiti
Minor aphthous ulcers account for
85% of cases.
They occur on the floor of the mouth,
lateral and ventral tongue, buccal
mucosa, and pharynx; are < 8 mm
(typically 2 to 3 mm);
and heal in 10 days without scarring
(n.d., 2018)

12. Dental implications
Sharp teeth, braces or ill-fitting
dentures. (crest, 2019).
Cigarette smoking and allergies
may also increase the likelihood of
canker sores. (crest 2019).
Dentists and physicians can treat
sever canker
prescription mouthwash,
medication,
or by cauterizing the lesion.

13. What I find interesting about Aphthous Ulcers
Not contagious
These sores can reappear over time.
The cause of canker sores is unknown
Canker sores usually heal on their
own
You usually don’t need to seek
professional treatment for this condition
unless the sores are large, very
painful, not healing, constantly
reoccurring, or are accompanied by
fever.

14. Image resources
Recurrent Aphthous Stomatitis [Digital image].
“Http://Lataihomoeopathicclinic.com/Dehu-Road/Aphthous-Ulcer.html.” Aphthous Ulcer
Homoeopathy Treatment/Doctor/Clinic/Center in Dehu Road | Latai Homoeopathy
Clinic Dehu Road,
25 years old female with major aphthous ulcer on the upper lip [Digital Image].
“Http://Lataihomoeopathicclinic.com/Dehu-Road/Aphthous-Ulcer.html.” Aphthous Ulcer
Homoeopathy Treatment/Doctor/Clinic/Center in Dehu Road | Latai Homoeopathy
Clinic Dehu Road, lataihomoeopathicclinic.com/dehu-road/aphthous-ulcer.html.
lataihomoeopathicclinic.com/dehu-road/aphthous-ulcer.html.
Recurrent Aphthous Stomatitis [Digital image]. (n.d.). Retrieved from
https://www.merckmanuals.com/professional/dental-disorders/symptoms-of-dental-
and-oral-disorders/recurrent-aphthous-stomatiti
All other images provided by BING through Microsoft powepoint.

15. Cited Resources
Canker sore. (2018, April 03). Retrieved from https://www.mayoclinic.org/diseases-conditions/canker-sore/symptoms-causes/syc-
20370615
Canker Sores – Dental Care. (n.d.). Retrieved from https://www.dentalcare.com/en-us/patient-education/patient-materials/canker-
sores
Cunha, J. P. (n.d.). How to Get Rid of Canker Sores: 14 Treatment Options & Medicine. Retrieved from
https://www.medicinenet.com/canker_sores/article.htm
10 Facts About Canker Sores. (n.d.). Retrieved from https://www.copperridgedentalutah.com/10-facts-about-canker-sores/
This Photo by Unknown Author is licensed under CC BY-SA