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. 2023 Feb 19;20(4):3705. doi: 10.3390/ijerph20043705

Table 5.

Correlation analysis between the highest GI and R/G values of each maxillary and mandibular gingiva.

Location Orthodontic Treatment Maxilla Mandible
R/G_BO R/G_MO R/G_
TO
R/G_
IDO
R/G_BO R/G_MO R/G_
TO
R/G_
IDO
Maxilla GI_BO 0.43
GI_MO 0.63 *
GI_TO 0.70 **
GI_IDO 0.87 **
Mandible GI_BO 0.41
GI_MO 0.40
GI_TO 0.60 *
GI_IDO 0.73 **

* p < 0.01, ** p < 0.05. Spearman’s Rho test with each of the values was the highest among the three papillary gingivae in the maxillary and mandible. GI, gingival index; R/G, red/green ratio; BO, before orthodontic treatment; MO, mid-point of orthodontic treatment; TO, three-quarters of the way through orthodontic treatment; IDO, immediately after debonding.