What causes a white film on your teeth in the morning?

White Film on Teeth in the Morning: Biofilm and Causes

White film on teeth in the morning is often referred to as plaque. Plaque is a sticky substance formed by bacteria, and it's the primary cause of cavities and gum disease. Here are some key reasons why you might experience plaque buildup in the morning:

1. Poor Oral Hygiene: Insufficient cleaning, brushing, and flossing can contribute to the accumulation of plaque. When you don't brush and floss properly, food particles remain on your teeth, providing nutrients for bacteria to thrive and form plaque.

2. Dry Mouth (Xerostomia): Saliva plays a crucial role in washing away food particles and bacteria from your teeth. If your mouth becomes dry, such as during sleep or due to certain medications, the lack of saliva makes it more challenging for natural oral cleansing to occur. This can contribute to plaque buildup.

3. Consuming Sugary Foods and Drinks: Sugary foods and beverages provide ample food for bacteria, leading to the rapid growth of plaque. When sugar remains on your teeth for an extended period, bacteria feed on it and produce acids that can damage your tooth enamel and further promote plaque formation.

4. Acid Reflux or Heartburn: In cases where acid reflux occurs, stomach contents, such as acids, can rise back into the mouth. This can wear away tooth enamel and create a rough surface for plaque to adhere to.

5. Certain Medications: Some medications may have side effects that reduce saliva production or cause mouth dryness, making it easier for plaque to accumulate.

6. Medical Conditions: Certain medical conditions, such as diabetes or immune system disorders, can make individuals more susceptible to plaque buildup and gum disease.

It's important to maintain a consistent oral hygiene routine, including brushing twice a day, flossing regularly, and limiting sugary food and drink consumption, to prevent white film (plaque) buildup on your teeth. If the problem persists, it's advisable to visit your dentist for further assessment and treatment recommendations.