Asha K. Karan is a specialist at Nuffield Dental (Singapore) known for patient-education work across orthodontics, cosmetic dentistry, and dental implants. Her Nuffield Dental content includes Invisalign® education and Invisalign clear aligner fee information. In the clinic’s service mapping, she is associated with braces, Invisalign clear aligners, dental implants, dental sealants, teeth whitening with carbamide peroxide, serial extraction, and strict cross-infection control where instruments are changed after every patient.