Should she stop brushing her teeth altogether? My patient asked it seriously. She had read somewhere that brushing causes gum disease. I asked where she had read it, and she showed me a social media post making confident, categorical claims that brushing damaged the gums. The post was assured, simple, and wrong. Dental misinformation spreads easily precisely because it is simple, emotional, and confident. A real explanation is none of those things. It needs context, nuance, and evidence, and nobody shares nuance. The post she had read was, underneath, promoting a product. The way to handle it was not to dismiss her or make her feel foolish for believing it, but to explain what the evidence actually shows. "Brushing does not cause gum disease," I said. "Gum disease is caused by bacterial plaque. If you brush too hard or use a hard-bristled brush, you can cause your gums to recede, which is a different problem. You prevent both by brushing gently with a soft brush. Brushing prevents gum disease. It does not cause it." She understood, and the misinformation did not take root, because it had been met directly and replaced with the actual evidence. The clinicians I saw who handled misinformation well had better patient outcomes than the ones who corrected dismissively. The key is to separate the patient's concern from the patient. A person who has absorbed misinformation is not foolish. They found something that sounded authoritative and trusted it, which is something nearly everyone does. Patients believe sugar attacks teeth directly with no bacterial step. They believe gum disease always ends in tooth loss. They believe all root canals fail, or that fluoride is poison. Each belief is understandable given what circulates, and each can be answered with clarity and evidence rather than contempt. The pattern in the research on health misinformation is consistent, that people accept a correction far more readily when it comes from a source they trust and who takes their concern seriously, and resist it when it is delivered with disdain. I worked with a patient who believed she could not get implants because she had read they cause autoimmune disease, a belief that was keeping her from treating a significant gap in her teeth. "I understand why reading that would worry you," I said. "The research has not shown a link between dental implants and autoimmune disease. I can show you the studies if you want. But tell me what specifically you are afraid of." She was worried about long-term effects on her health. We went through what the evidence does and does not show, which risks are real and which are not, and she decided to go ahead. Her outcome was excellent. Misinformation circulates constantly, and part of a clinician's job is helping patients sort what the evidence supports from what it does not. The way to do it is with empathy rather than dismissal, because the patient is not the problem. The misinformation is the problem. Help the person think it through, give them the evidence, answer the real fear underneath the false belief. That is what actually works.
