So, should everyone attend the dentist twice a year? The evidence for this recommendation is sparse, to say the least. Doing so may encourage healthy behaviours, but the evidence for this link is weak. There is, however, relatively strong evidence that a yearly dental examination will often be beneficial to the patient’s health. The strongest evidence, however, suggests that because disease risk varies so widely between individuals, it is only the dentist who can adequately assess the most appropriate interval between dental examinations.