Alcohol and drugs can have negative effects on our teeth and oral health in several ways:

1. Dry mouth: Alcohol and drug use can lead to dry mouth, which reduces saliva flow in the mouth. Saliva is essential for neutralising acids and washing away food particles, so a lack of saliva can increase the risk of tooth decay, gum disease, and bad breath.

2. Tooth decay: Alcohol and drug use can lead to tooth decay, as the sugar and acid in many alcoholic and sugary drinks can erode the enamel on our teeth.

3. Gum disease: Heavy alcohol and drug use can increase the risk of gum disease, as these substances can weaken the immune system and make it harder for the body to fight off infections.

4. Tooth grinding: Some drugs, such as methamphetamine and cocaine, can cause tooth grinding and clenching, which can lead to tooth wear, cracking, and even tooth loss.

5. Oral cancer: Heavy alcohol and drug use can increase the risk of oral cancer, which can affect the lips, tongue, gums, and other areas of the mouth.

If you use alcohol or drugs, it's important to be aware of the potential risks to your oral health and take steps to minimize them. This may include practicing good oral hygiene, drinking plenty of water to combat dry mouth, and avoiding sugary and acidic drinks. Additionally, if you are struggling with substance abuse, seeking help from a healthcare professional or addiction specialist can not only benefit your oral health but your overall well-being.