When frets get worn they become flat on the top from bending which can make them uneven. The uneven wear can create choking and buzzing all over the neck or sometimes in small areas. When the fret becomes flat on top from wear, the strings touch the fret on more surface area. This creates friction which makes the strings lose the easy, silky feel while bending. The larger surface area also induces buzzing and can throw off the intonation. So what do you do when your guitar’s frets are worn? You have them leveled and dressed. Leveling makes them all even and the dressing gives them a nice round crown on top. When properly leveled & dressed your guitar will play much easier as well as play better in tune. This procedure is normal routine maintenance. Makes a world of difference!