Tongue Depressor-related Ischemia-Reperfusion Injury in Tongue

Study group Inclusion Criteria: * Patients aged 20 years or older * Patients who undergo suspension laryngoscope procedure Exclusion Criteria: * refusal to participate * age of \<20 years * history of syndromal craniofacial abnormalities * occurrence of tongue masses * history of craniofacial surgery * history of burns, trauma or radiotherapy involving the head and neck region * neurologic disorders and patients with obstructive sleep apnea syndrome (OSAS) * active inflammation in the head and neck region * cervical rigidity limiting neck flexion and head extension Control group Inclusion Criteria: Patients aged 20 years or older Patients who did not need suspension laryngoscopy and any head and neck procedures