Ensuring longevity starts with using high-quality materials and precise techniques. For veneers and crowns, I use durable materials and ensure a perfect fit to minimize issues. Maintenance involves practicing good oral hygiene, including regular brushing and flossing, and attending routine dental check-ups. For specific treatments, I may recommend additional care instructions or follow-up visits to monitor the results and address any concerns. By following these guidelines, you can help ensure the longevity of your cosmetic enhancements.