Which factor is most critical in determining the long-term success of a dental restoration?

The long-term success of a dental restoration is significantly influenced by the patient's oral hygiene. Good oral hygiene practices, such as regular brushing, flossing, and the use of mouthwash, help prevent the buildup of plaque and bacteria that can lead to dental decay, gum disease, and potential failure of the restoration. When a patient maintains excellent oral hygiene, it not only protects the restoration itself but also the surrounding teeth and gums, creating a healthier oral environment conducive to the longevity of the treatment.

While the type of restorative material used, the skill of the dentist, and the frequency of dental check-ups all play important roles in the overall outcome of dental work, it is the patient's day-to-day care that directly impacts the longevity and success of the restoration. Good oral hygiene practices help mitigate many risks associated with restorations, ultimately determining how well and how long a restoration will perform over time.