Table 3: Scores of OHRQoL based on OHIP-14.

Group IOTN Grade Mean scores
Experimental 3 (Moderate) 1.12 ± 1.69
4 (Severe) 3.88 ± 3.22
Control 3 (Moderate) 8.25 ± 3.88
4 (Severe) 20.76 ± 6.64
P Value 0.001

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