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Table 4 Comparison of clinical indices between two study groups at baseline and after 6 months in mandibular arch

From: Clinical and radiographic comparison of the effects of two types of fixed retainers on periodontium - A randomized clinical trial

Variable measured FRC baseline FRC 6 months
Plaque index SW 6 months - 0.001*
SW baseline 0.62 -
Gingival index SW 6 months - 0.000*
SW baseline 0.53 -
Calculus index SW 6 months - 0.35
SW baseline 074 -
Bleeding on probing SW 6 months - 0.07
SW baseline 0.86 -
  1. SW, spiral wire group; FRC, fiber-reinforced composite group.
  2. *, statistically significant.