The Queen of Hearts universal periodontal finishing Curette has longer closed-face cutting edges capable of reaching furcations and difficult-to-reach root concavities. For every Queen of Hearts purchased, PDT will make a $1.00 donation to the American heart Association. PDT instruments are ideally weighted, featuring the most ergonomic handle with knurling to the instrument shank to provide increased comfort with less hand fatigue and pinch. PDT focus on ergonomics greatly reduces the development of musculoskeletal disorders.