HKU Faculty of Dentistry and the Society of Preventive Dentistry of Hong Kong (SPDHK) collaborated with Sham Shui Po District Health Centre to hold a carnival on 18 December 2021 at Sham Shui Po District Health Centre. More than 60 residents of Sham Shui Po participated in this oral health promotion event. We designed interactive booths to debunk myths and misconceptions of oral health and oral hygiene practice. Each booth focused on a particular aspect of oral health, such as dentine hypersensitivity, problems related to eruption of wisdom teeth, periodontal disease and pregnancy-related oral conditions. The event was a great success and was well received by the participants who expressed that they had gained much oral health and related knowledge. They were more aware of maintaining good oral hygiene and practice after the event.