What is the primary purpose of coronal polishing in dental hygiene?

The primary purpose of coronal polishing is to remove plaque and stains from the tooth surface. This process is a crucial part of dental hygiene because it helps maintain oral health by minimizing the risk of tooth decay and gum disease. By effectively eliminating plaque, which is a soft, sticky film of bacteria that forms on teeth, coronal polishing contributes to preventing the hardening of this plaque into calculus, or tartar, which can be much more difficult to remove and may lead to periodontal issues.

Additionally, removing stains during this procedure not only improves the aesthetic appearance of teeth but also encourages patients to maintain good oral hygiene as they see the immediate benefits of having clean, polished teeth. While coronal polishing does play a role in preparing teeth for further procedures, its primary function is focused on plaque and stain removal, making option C the most accurate choice regarding its main purpose in dental hygiene.