Approximately 92% of adults have experienced a cavity. Cavities occur as a result of tooth decay, and if left untreated, they can severely damage teeth and lead to a decline in oral health. Though cavities are common, at Smile Perfection, Tucson dentist Sharad Pandhi, D.D.S. can easily fix them using a routine, restorative dental treatment called a dental filling, also known as a tooth filling.