颌骨囊肿开窗减压术后戴塞治器疗效分析

Analysis of curative effect of the plugger track after cyst fenestrationon patients with jaw cyst

目的追踪下颌囊肿患者囊肿开窗术后应用塞治器,探讨塞治器每日冲洗次数与囊肿恢复快慢的关系。方法通过对47例下颌囊肿患者开窗术后戴塞治器的复诊记录,根据冲洗次数分成两组:A组为≤2次/d,B组为≥3次/d。根据全景片中囊腔缩小的情况来判断疗效,术后疗效用以下形式记录。显效:囊腔最大径缩小≥50%;好转:囊腔最大径缩小<50%;复发:囊腔无明显变化或者增大;愈合归于显效内,有效率以"显效"计算。结果有2例归为无效,A组好转9例,显效8例,复发3例;在B组好转5例,显效18例,复发2例。A组有效率为40.0%,B组为72%,两组有效率差异有统计学意义(χ2=4.66,P=0.03)。结论每日冲洗次数与囊肿恢复情况有明显关系,冲洗次数≥3次/d,患者囊肿愈合情况有明显好转。

Objectives To track patients after mandibular cyst fenestration with the application of plugger device,and to explore the relationship between the frequency of flushing and reduction in cyst diameter. Methods 47 mandibular cyst patients who had fenestration surgery were included in the sample. The patients were divided into two groups according to the number of flushing： Group A flushed≤2 times/day,Group B≥3 times/day. The reduction in cavity size was measured from panoramic radiographs and classified into as follows： effective-the maximum diameter of the cyst reduced by ≥50%; improvement-the maximum diameter of the cyst reduced by 50%; no change or increase in size. Data analysis was conducted by chi-square test. Results Two cases were classified as invalid. In A group,there were 8 cases of effectiveness,9 cases of improvement,and 3 cases of no change or increase in size. In B group,there were 18 cases of effectiveness,5 cases of improvement,and 2 cases of no change or increase in size. The effective rate of group A was 40.0% and in group B it was 72%（ χ^2= 4.66,P = 0.03）. Conclusion There is a significant relationship between daily flushing times and cyst size reduction. Patients who are flushed more than 3 times/day have a greater reduction.