術後性上顎嚢胞に関する臨床的研究　ＩＩ　　手術症例の長期経過観察

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  • Clinical investigation on postoperative maxillary cyst 2. Long-term follow-up of surgical treatment cases.
  • 2. Long-term follow-up of surgical treatment cases
  • 第2報 手術症例の長期経過観察

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Sixty six patients who had undergone surgical treatment of 71 postoperative maxillary cysts including 5 bilateral cases were evaluated clinically and radiographically 8 months to 9 years and 3 months after surgery. A Caldwell-Luc type of operation had been Performed in 35 cases, enucleation and packing open in 31 cases, enucleation and primary closure in 3 cases, and marspialization in 2 cases.<BR>1) There was no patient with definite evidence of recurrence.<BR>2) There was no patient who complained of pain or swelling at the site of operation, but tenderness of the cheek, tenderness of the mucogingival fold, and paresthesia of the cheek and upper lip were detected in 21.1%, 38.0% and 28.2% of the patients, respectively, and these symptoms were observed more frequently in patients treated by the Caldwel-Luc operation. An intraoral depression remained in the mucogingivalfold in 25.4% of the patients, and it was more often seen in patients treated by enucleation and packing open or marspialization.<BR>3) An antronasal opening formed during the Caldwel-Luc operation was remaining in only 7 of 29 patients examined by nasopharyngeal fiberscopy.<BR>4) Bony regeneration was observed at the operation site in all cases.<BR>When it was classified into 4 types by type and degree of regeneration, Type III (mild bony regeneration) and IV (peripheral bony regeneration) predominated in the cases treated by Caldwel-Luc operation, and type II (marked bony regeneration) and III in cases treated by enucleation and packing open. All cases treated by primary closure cases showed type I (completely filled in). Marspialization was accompanied by the poorest bony regeneration (Type IV).<BR>6) No clinical and radiological changes were observed in patients who were followed postoperatively for over one year and four months.

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