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Table 2 Degree of nasality and recommended intervention methods (Shin’s criteria)

From: Investigation of postoperative hypernasality after superiorly based posterior pharyngeal flap

Nasalance score (%) Degree of nasality Recommended treatment
~ 20 None No intervention
20~35 Mild Speech therapy
35~45 Moderate Speech aid appliance with speech therapy
45~60 High Surgery or speech aid
60~ Severe Surgery