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Post-surgical maxillary defects pre-dispose the patient to hypernasal speech, fluid leakage into the
nasal cavity, and impaired masticatory function. Such defects need special prosthesis to establish
oro-nasal seal and rehabilitate the patient. In this report we have fabricated closed hollow bulb
obturator prosthesis using thermoplastic resin sheet for a 56-year-old female patient by one-step
polymerizing technique. The advantages of this technique are reduced laboratory time, simple
procedure (one-time processing) to fabricate obturator that is lightweight, promotes a good seal and
is completely covered with heat-cured acrylic resin. Closed hollow obturator prosthesis helped in
functional rehabilitation and improving quality of life of the patient.

Closed hollow bulb obturator; partial maxillectomy; prosthetic rehabilitation; thermoplastic resin.