03.24.23
US Patent No. 11,607,381 B2 (Saqib Ali, Imran Farooq, Amr Bugshan, Intisar Ahmad Siddiqui, Khalifa S. Al-Khalifa, Mohammed Taha Ali Al-Hariri); Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia, has been awarded a US patent for remineralizing teeth. It entails extracting a propolis of Brazilian green into an oil to form a Brazilian green propolis oil and applying it for a time and under conditions to increase Vickers Hardness of the tooth or a portion thereof by at least 5%.