Barnhart

Barnhart is a medium length at 10 mm long, as opposed to the short 8 mm shank of the Columbia 13-14. This medium length terminal shank seems to fit very well with most hygienists, providing enough reach to comfortably reach all posterior surfaces. The blade of the Barnhart 5-6 is slightly thinner than the Columbia, which provides easier insertion into the gingival pocket and improved access to deeper pockets. However, that same Barnhart 5-6 tip is available with thinner blades in the Barnhart 5S-6S and thicker blades in the Barnhart 5R-6R.

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