In which scenario would bristle brushes NOT be appropriate?

Bristle brushes are commonly used in dental hygiene procedures for various tasks, but they have limitations that make them unsuitable for certain scenarios. Cleaning between teeth, also known as interproximal cleaning, requires tools that can effectively reach and clean these tight spaces without causing damage to the surrounding gum tissue. Floss or specially designed interproximal brushes are typically used for this purpose instead of bristle brushes.

Bristle brushes can be too coarse and may not fit well between teeth, potentially leading to discomfort or injury. In contrast, scenarios like polishing deep grooves, treating enamel surfaces, and removing plaque are tasks where bristle brushes can be beneficial, as they can provide sufficient scrubbing action without risking harm to broader dental structures. This distinction is crucial for ensuring effective and safe dental hygiene practices.