World Smile Day is on the 1st of October, a day to make other people smile and do kind acts. While smiling can reflect happy emotions, it can also reveal health issues.

SmileyWorld Smile Day was conceived by Harvey Ball, the commercial artist who created the smiley face in 1963. He thought that we should devote one day each year to smiles and kind acts throughout the world.

So how can you tell what potential health dangers hide behind a smile? The experts at ExpressDentist.com can reveal a list of the top five health signs that can be shown by teeth.

These are the top five health issues your teeth can reveal:

1. Eating disorders and tooth enamel
If an eating disorder involves vomiting, stomach acids wash over teeth and can dissolve the hard enamel covering. Changes in colour, shape, translucency, or sensitivity may provide clues to an underlying problem that can lead to extensive decay and tooth loss over time.

2. Anemia and pale gums
Pale gums can be caused by anemia, commonly due to an iron deficiency. Some colour variations exist between individuals, and we’re most concerned about swollen, ulcerative, or painful gums. But a follow-up with a physician can provide clear answers and peace of mind whenever changes appear that suggest underlying systemic causes.

3. Osteoporosis and tooth loss
The bone around your teeth provides the foundation that supports them. While it may be difficult to detect at home, dentists and hygienists may be the first to suspect a systemic change in bone density due to osteoporosis. Teeth that move more than average during an exam could provide an early clue to this progressive condition. We often recommend a bone density test with a physician in these cases.

4. Oral Thrush and HIV
We don’t expect to see oral thrush in patients with normal immunity unless they’re denture wearers. But as the virus weakens the immune system in HIV patients, they become more susceptible to thrush and other more severe infections. A general physical exam and blood tests can help provide answers.

5. Tooth Loss and kidney disease
Kidney disease can cause mouth sores, changes in taste, and dry mouth from xerostomia, a reduction in saliva production. When the mouth dries out, acidity increases, and the low pH may result in aggressive tooth decay and eventual tooth loss. Some research also shows that patients with gum disease have an increased risk of kidney disease, another two-way relationship between oral and systemic health.

So look in the mirror, smile and reflect on what you can contribute to World Smile Day – and if you notice anything amiss while your looking, it may be time to make an appointment for a checkup.