There may be difficulty in speech, deglutition, maintaining oral hygiene, and prosthetic treatment. These patients have the problem of regurgitation of water and food through nose. Surgical resection can lead to the restricted opening of the jaws and altered range of mandibular movements with fibrosis and trismus. Patients after surgical resection have altered anatomy due to scaring, tissue contracture, lack of bony support, and tissue edema. Nasal sounds such as “n,” “m,” and “ng” are seen due to the absence of closure of the pharyngeal wall. Defects can cause disruption of articulation and airflow during speech production and nasal reflux during deglutition. Maxillary defects can be congenital, developmental, acquired, traumatic, or surgical involving the oral cavity and related anatomic structure.Ībsence or loss of some or all of the soft palate and/or hard palate results in insufficient structure or altered function of the remaining structure. Most common intraoral defects in the maxilla are in the form of an opening into the antrum and nasopharynx. Keywords: Definitive prosthesis, interim prosthesis, maxillary defects, maxillary obturator, speech prosthesis, surgical obturator This review article will highlight on the Prosthetic Rehabilitation of the maxillary defects and the types of obturators. An obturator is a prosthesis which is fabricated for the patients with the palatal defects in the form of cleft lip and palate, oroantral fistula or surgical resection after removable of pathology like tumor or cancer. The prosthesis provided for these patients are called as obturators. In such situation an obturator is designed to close the opening between the residual hard and / or soft palate and the pharynx. To prevent this and to help the patient in deglutition and speech defects must be restored with prosthesis. These changes require the fabrication of prosthesis and also sometimes repeated prosthesis adjustments to confirm to the soft tissue changes. These patients have problem of regurgitation of water and food through nose and difficulty in speech. Patients after surgical resection have altered anatomy due to scaring, tissue contracture, lack of bony support and tissue edema. Defects can cause disruption of articulation and airflow during speech production and also nasal reflux during deglutition. Absence or loss of some or all of the soft palate and / or hard palate results in insufficient structure or altered function of the remaining tissues. Defects in the maxillary jaw can be congenital, developmental, acquired, traumatic or surgical involving the oral cavity and related anatomic structure.
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