Help plz! can slight overbite only on one side cause facial asymmetry?

Facial asymmetry: There are many factors that can cause facial asymmetry, one of which is overbite. The best way to verify if this is the only/main reason for your facial asymmetry, is to see a dentist such as a general dentist or an Orthodontist. They can tell you if the cause for your asymmetry is through your teeth and bony relationships.

Possibly: But facial asymmetry is often a multi-system (bone/teeth/muscles/facial drape) problem. Suggest team composed of General Dentist/Oral Surgeon/Orthodontist and possibly Plastic Surgeon to evaluate and treat your concerns.