? Every year before the Lunar New Year, dental clinics in Hong Kong experience a surge in teeth cleaning appointments. Many citizens book these services, as if it has become an essential New Year ritual. Some believe that pre-New Year teeth cleaning brings a refreshed start to the new year, while others are driven by traditional customs. However, is teeth cleaning and orthodontic treatment truly appropriate before and after the New Year? This seemingly simple question actually involves multiple medical, psychological, and practical considerations. This article, by Class ONE Dental Clinic, will provide an in-depth analysis of the advantages and disadvantages of teeth cleaning and orthodontic treatment before and after the New Year to help you make the wisest decision.