Clinical Research Directory

Two groups are considered for this experiment, each defined by the following criteria: Group 1: * Patients who have an appointment scheduled within the next 1 to 7 days * The appointment must be scheduled in the medical area only * The appointment must be at a center that also offers dental services * Patients who have not received a preventive dental message in the last month * Patients over 18 years old * Patients with a valid phone number to receive WhatsApp messages * Patients who have not attended a dental appointment in the last 6 months * Patients who do not have a future dental appointment scheduled Group 2: * Patients who do not meet the criteria for Group 1 and who have an appointment the following day or attended an appointment the previous day * The appointment may be in the Medical, Laboratory, Imaging, Telemedicine, Kinesiology, Vaccination, or Procedures areas * Patients who have not received a preventive dental message in the last month * Patients over 18 years old * Patients with a valid phone number to receive WhatsApp messages * Patients who have not attended a dental appointment in the last 6 months * Patients who do not have a future dental appointment scheduled 58.33% of the participants will be allocated to the large discount condition, 27.78% allocated to the intermediate discount condition, and 13.89% allocated to the intermediate discount + voucher condition.