INTRODUCTION After total laryngectomy, voice rehabilitation can be achieved by use of voice prosthesis insertion (e.g., BlomSinger, InHealth Technologies, Carpinteria, CA; Provox, Atos Medical, H€orby, Sweden; Tracoe, Tracoe Medical, Frankfurt, Germany) or an esophageal voice or assistive digital speech device (e.g., Servox, Servox AG, Troisdorf, Germany). Various studies have shown that insert...