Synonymous terminology: obturator, surgical stayplate, immediate temporary obturator. A temporary prosthesis inserted during or immediately following surgical or traumatic loss of a portion or all of one or both maxillary bones and contiguous alveolar structures (e.g., gingival tissue, teeth). Frequent revisions of surgical obturators are necessary during the ensuing healing phase (approximately six months). Some dentists prefer to replace many or all teeth removed by the surgical procedure in the surgical obturator, while others do not replace any teeth. Further surgical revisions may require fabrication of another surgical obturator (e.g., an initially planned small defect may be revised and greatly enlarged after the final pathology report indicates margins are not free of tumor).

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