What Is the Difference Between Fillings and Onlays? Why Should I Choose Onlays?

Fillings and onlays are both restorative treatments, but their applications and benefits differ.

Comparison

Feature	Fillings	Onlays
Usage	Small cavities	Larger cavities or fractured teeth
Material	Composite resin or amalgam	Porcelain or Porcelain infused resin
Durability	Moderate	High
Coverage	Limited to cavity size	Extends to cover damaged cusps

Why Choose Onlays?Onlays are preferred for larger restorations due to their durability and superior aesthetic finish. They also preserve more of the natural tooth structure compared to traditional crowns.

Example: A patient with a fractured molar at Dent Health Istanbul opted for an onlay, which restored full functionality while maintaining the natural appearance of their tooth.Choosing the right restoration depends on the extent of damage. Onlays offer a balance of strength, aesthetics, and preservation.