The Modified Gingival Index (MGI) uses a visual scale to assess gingival health. The MGI relies on a visual assessment of gingival changes to measure the severity of inflammation.
Clinically, each child's periodontal status was assessed using the plaque index (PI) according to Silness and Loe [17], the calculus index (CAI) according to Ramfjord [18], and the gingival index (GI) described by Loe and Silness [19], on the six Ramfjord teeth.