Complex sentence: There are many different types and classifications of burs some of the most common are: the round bur (sizes ¼ to 10) or inverted cone (sizes 33½ to 90L).
Split into simpler sentences: There are many different types and classifications of burs. Some of the most common are: the round bur (sizes ¼ to 10) or inverted cone (sizes 33½ to 90L).