Are you looking for the best Root Canals treatment in Grafton? Visit Inspire Dental. Our dentists often recommend crowns when the health or strength of a tooth has been compromised by a large cavity or filling. For example, if you have had root canal treatment, you will likely require a crown to cover and protect the weak tooth while providing structure and function. This is often the only way to salvage a damaged and decayed tooth, as well as improve the appearance.