During what part of the procedure should the tooth polishing begin?

The correct timing for beginning tooth polishing is at the distal surface of the most posterior tooth. This approach is effective because it allows for a systematic and thorough cleaning of all teeth without missing areas. Starting at the back ensures that you can work forward in a logical sequence, preventing any potential accumulation of polishing paste or debris in already cleaned areas.

By beginning at the distal surface, you can also ensure that you are providing adequate polish to each tooth surface in a manner that minimizes the chance of having to re-treat areas due to overlapping or missing sections. This method promotes an organized workflow and helps maintain a clean and efficient environment during the polishing process.

In contrast, beginning with anterior teeth would not be as effective because it could lead to having to go back and touch up areas that may have been affected by debris from the posterior teeth. Similarly, starting after rinsing the mouth would not allow you to clean effectively, as polishing should take place on clean, dry surfaces for optimal results.