The single‑handed instrument transfer with a right‑handed operator is illustrated in the following procedural outline (Figure 9).
Bulky instruments can be transferred in the same single handed exchange as described above. Many dental units, such as the split unit, prohibit effective handpiece transfer since the handpiece is outside the 21‑inch radius of the assistant’s hand. This unit placement leads to decreased effectiveness in terms of time and motion. When a transthorax unit is used and handpieces are within the transfer zone, the assistant should then utilize the following procedure: