Chiapasco M, Rossi A, Motta J J, Crescentini M
Department of Dentistry and Stomatology, San Paolo Institute of Biomedical Sciences, University of Milano, Italy.
J Oral Maxillofac Surg. 2000 Sep;58(9):942-8; discussion 949. doi: 10.1053/joms.2000.8732.
This study evaluated the spontaneous bone healing after enucleation of large mandibular cysts subjectively and with a computed analysis of postoperative panoramic radiographs.
Twenty-nine patients had large mandibular cysts treated by surgical enucleation. Postoperative clinical and radiographic examinations were performed at 6, 12, and 24 months in 27 patients. Bone regeneration and reduction of the residual cavities and bone density were evaluated with a computed analysis of preoperative and postoperative panoramic radiographs. A subjective and clinical radiographic evaluation of the healing process also was performed.
Uneventful healing and spontaneous filling of the residual cavities was obtained in all cases. The computed analysis of the postoperative radiographs showed mean values of reduction in size of the residual cavity of 12.34% after 6 months, 43.46% after 12 months, and 81.30% after 24 months. The increase in bone density was 37% after 6 months, 48.27% after 12 months, and 91.01% after 24 months.
Spontaneous bone regeneration can occur in large mandibular cysts without the aid of any filling materials. This simplifies the surgical procedure, decreases the economic and biologic costs, and reduces the risk of postoperative complications.
本研究通过主观评估以及对术后全景X线片进行计算机分析，评价大型下颌囊肿摘除术后的自然骨愈合情况。
29例大型下颌囊肿患者接受了手术摘除治疗。27例患者在术后6个月、12个月和24个月进行了临床和影像学检查。通过对术前和术后全景X线片进行计算机分析，评估骨再生情况、残余腔隙的缩小以及骨密度。还对愈合过程进行了主观和临床影像学评估。
所有病例均实现了顺利愈合且残余腔隙自然填充。术后X线片的计算机分析显示，残余腔隙大小在术后6个月平均缩小12.34%，12个月时缩小43.46%，24个月时缩小81.30%。骨密度在术后6个月增加37%，12个月时增加48.27%，24个月时增加91.01%。
大型下颌囊肿无需任何填充材料即可实现自然骨再生。这简化了手术操作，降低了经济和生物学成本，并减少了术后并发症的风险。
