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Table 3 Criteria for the Modified Plaque Index (MPI)

From: Influence of probiotics on the periodontium, the oral microbiota and the immune response during orthodontic treatment in adolescent and adult patients (ProMB Trial): study protocol for a prospective, double-blind, controlled, randomized clinical trial

Score

Oral hygiene

Description

0

Very good

No plaque

1

Good

Small plaque areas approximal

2

Moderate

Small plaque areas approximal + cervical

3

Poor

Plaque covers 1/3 of the cervical area of the bracket