J Korean Acad Prosthodont.  2021 Jul;59(3):333-340. 10.4047/jkap.2021.59.3.333.

Management of prosthodontic patients with severe gag reflex using the questionaire and behavior technique: A case report

  • 1Department of Oral and Maxillofacial Surgery, Pusan National Uninversity Dental Hospital, Yangsan, Republic of Korea
  • 2Dental Clinic Center, Pusan National University Hospital, Busan, Republic of Korea
  • 3Department of Prosthodontics, Kyungpook National University Dental Hospital, Daegu, Republic of Korea


Although gag reflex is an essential function and a useful physiological defense mechanism, it can become an obstacle in a dental treatment. In this case, a questionnaire was designed and used in consultations to objectify the factors associated with gag reflex. Based on the questionnaire, various treatment protocols were planned, such as behavioral control, which is a systematic desensitization that adapts by placing dental instruments in the oral cavity, and habit control to eliminate vomiting habits after drinking. Except for the placement of the implant fixture under general anesthesia, all restoration procedures were performed in the outpatient clinic in the same manner as the conventional implant fixed prosthetic restoration. The systematic desensitization and behavior technique were repeated until the patient was able to endure discomfort and relieve gag reflex in dental treatment. The patient was successfully received the implant-fixed prosthetic restoration in the partial edentulous region.


Dental implant; Gag reflex; Questionaire
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