Voice Quality

The goal of this clinical trial in voice professionals with both genders aimed to verify the changes in the vocal range profile and the changes in the glottic and vocal tract configuration for more efficient phonation after applying the adapted Lee Silverman Method and the addiction of lung volume recruitment technique in acoustic and structural analysis.

Laryngeal squamous cell carcinomas are head and neck malignancies that directly affect both swallowing and voice functions and are associated with a significant deterioration in patients' quality of life throughout the treatment process. The aim of this study is to evaluate quality of life, voice and swallowing functions, pain, anxiety-depression levels, and patient satisfaction at the pre-treatment period and at the 3rd, 6th, and 12th months post-treatment in patients with laryngeal malignancies, using validated questionnaires, in order to: Elucidate the course of functional recovery following treatment, Individualize rehabilitation and follow-up strategies, and Examine the relationship between functional outcomes and oncological survival.

Researchers will compare oral flurbiprofen (%0.25) spray and ice cream to a placebo (a look-alike substance that contains no drug) to see if oral flurbiprofen (%0.25) spray and ice cream works to effect post-thyroidectomy throat pain and voice quality. Participants will: * Receive 1 puff of oral flurbiprofen (0.25%) spray or 105 ml of ice cream or 1 puff of oral spray prepared with drinking water (placebo) at 5 hours postoperatively according to randomization result * Undergo voice analysis using Praat voice analysis (University of Amsterdam) at 6 hours postoperatively * Undergo a visual analog scale for analgesia status at 6 hours postoperatively