Which location is recommended to brush along for high-risk patients?

• A. Along gumline
• B. Occlusal surfaces only
• C. Inside the gingival sulcus
• D. Root surfaces

Answer: (A)

Disrupting plaque at the gingival margin is crucial for high-risk patients because this is where plaque tends to accumulate and drive caries and gingival inflammation. Brushing along the gumline places the bristles at the cervical area where the tooth meets the soft tissue, effectively removing biofilm that forms near the margin before it can spread into the sulcus or onto proximal surfaces. This targeted cleaning helps reduce the bacterial load responsible for early decay around the neck of the tooth and supports healthier gums.

Other locations miss the most critical plaque-prone zone or are not appropriate for routine cleaning. Brushing only occlusal surfaces ignores the plaque that builds up along the gumline and in interproximal areas. Brushing inside the gingival sulcus isn’t practical or safe for routine care, and brushing root surfaces is something that comes into play mainly when recession exposes those areas, not as the general recommendation for high-risk individuals.