42 Product research and development, in particular in the field of dental care and the prevention and treatment of bruxism, snoring, sleep apnea and other sleep and deglutition disorders; design of products, namely, product design and development in the fields of measuring and control apparatuses and instruments for assessing and measuring dental clenching, quality of sleep and deglutition in connection with the prevention and treatment of bruxism, snoring, sleep apnea and other sleep and deglutition disorders, transceivers, smartwatches, wearable activity trackers, computer software, application software, downloadable computer software applications, surgical, medical, dental and veterinary apparatuses and instruments, orthodontic apparatuses, orthodontics instruments, orthodontic braces, orthopedic devices, splints for medical purposes, dentures, teeth protectors for dental purposes, dental mouthguards, dental orthoses, dental prostheses, therapeutic devices for the prevention and treatment of bruxism, snoring, sleep apnea and other sleep and deglutition disorders, electric dental apparatuses, and monitoring devices for medical purposes