von Arx Thomas, Käch Simon, Suter Valerie G A, Bornstein Michael M
Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland.
Oral and Maxillofacial Radiology, Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong SAR, China.
Aust Endod J. 2020 Aug;46(2):176-183. doi: 10.1111/aej.12413. Epub 2020 Jul 7.
This retrospective analysis assessed a possible correlation of perforation of the maxillary sinus floor during apical surgery of maxillary molars and the distances from the treated apices/periapical radiolucencies to the sinus floor. The material included 168 apical surgeries of maxillary first or second molars performed from 1999 to 2016. In 22 (out of 33) perforation cases, a preoperative cone beam computed tomography (CBCT) was available. These cases were defined as the test group. From the pool of operated cases without sinus floor perforation, matching cases - that is, same treated tooth, similar age and same gender - were selected as a control group (N = 26). Mean linear distances from root apices or radiolucencies to sinus floor were significantly shorter in the test group compared to the control group. In conclusion, perforation cases were significantly closer to the sinus floor than cases without perforation.
这项回顾性分析评估了上颌磨牙根尖手术期间上颌窦底穿孔与治疗根尖/根尖周透射区至窦底距离之间的可能相关性。研究材料包括1999年至2016年期间进行的168例上颌第一或第二磨牙根尖手术。在33例穿孔病例中的22例中，有术前锥形束计算机断层扫描（CBCT）资料。这些病例被定义为试验组。在无窦底穿孔的手术病例中，选择匹配病例——即相同治疗牙齿、相似年龄和相同性别——作为对照组（N = 26）。试验组中根尖或透射区至窦底的平均直线距离显著短于对照组。总之，穿孔病例比未穿孔病例明显更靠近窦底。
