Table 1 Summarizing the assessment of oral hygiene using the Simplified Oral Hygiene Index.

From: Comparative study of the oral hygiene status of users of mefakia (traditional tooth cleaning method) and modern toothbrushes among patients at the Holy Bethel Dental Clinic in Addis Ababa, Ethiopia

Tooth number

Surface assessed

Debris index (DI)

Calculus index (CI)

Interpretation

16 and 36

Facial or Buccal

0: No debris

1: Soft debris covering < 1/3 of the surface

2: Soft debris covering 1/3 to 2/3 of the surface

3: Soft debris covering > 2/3 of the surface

0: No calculus

1: Calculus covering < 1/3 of the surface

2: Calculus covering 1/3 to 2/3 of the surface

3: Calculus covering > 2/3 of the surface

OHI-S scores are interpreted as good (0–1.2), fair (1.3–3.0), or poor (3.1–6.0).

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