The OHI-S assesses debris and calculus accumulation on how many teeth?

The OHI-S assesses debris and calculus accumulation on how many teeth?

• A. 4 teeth
• B. 6 teeth
• C. 8 teeth
• D. 12 teeth

Answer: (B)

OHI-S uses a small, fixed sample of teeth to estimate overall oral cleanliness. Specifically, it relies on six representative teeth to assess debris and calculus, rather than examining every tooth. This sampling approach provides a quick, reliable snapshot of a person’s oral hygiene by combining scores for debris (DI-S) and calculus (CI-S) on those teeth. The six teeth are chosen to reflect both arches and typical plaque-prone areas, making the method efficient for screening in clinics or surveys while remaining comparable across individuals.

OHI-S uses a small, fixed sample of teeth to estimate overall oral cleanliness. Specifically, it relies on six representative teeth to assess debris and calculus, rather than examining every tooth. This sampling approach provides a quick, reliable snapshot of a person’s oral hygiene by combining scores for debris (DI-S) and calculus (CI-S) on those teeth. The six teeth are chosen to reflect both arches and typical plaque-prone areas, making the method efficient for screening in clinics or surveys while remaining comparable across individuals.