The University of Western Australia, Perth, Western Australia, Australia.
Envision Medical Imaging, Perth, Western Australia, Australia.
Aust Dent J. 2020 Dec;65(4):252-258. doi: 10.1111/adj.12777. Epub 2020 Jun 18.
The aim of this retrospective study was to record incidental findings in CBCT scans taken in an older population for pre-implant assessment, and to examine whether these findings would influence the intended dental implant placement.
300 consecutive CBCT scans over the age of 40 years was carried out. The incidental findings were grouped into regions as follows: dentoalveolar structures, maxilla and mandible, paranasal sinuses, temporomandibular joint (TMJ), naso/oral-pharyngeal airway, cervical spine and neurovascular canals. The incidental findings are further categories into their significance towards the intended treatment plan.
Incidental findings were noted on all of the scans. 555 incidental findings (1.85 findings/scan) were identified. The highest number of incidental findings was in the sinuses (34%), followed by dentoalveolar structures (31%), nasal/oral-pharyngeal airway (12%), maxilla and mandible (10%), TMJ (6%), cervical spine (4%) and neurovascular canals (3%). A total of 37% of findings required follow-up. In 12% of cases detection of the incidental findings lead to amendment or abortion of the intended implant treatment plan.
Incidental findings within and beyond the region of interest are common in CBCT scans. The numbers of incidental findings per scan in an older population is higher than in a younger population.
本回顾性研究旨在记录为种植前评估而对老年人群进行的 CBCT 扫描中的偶发发现，并检查这些发现是否会影响预期的牙种植体放置。
对 300 名年龄在 40 岁以上的连续 CBCT 扫描进行了研究。偶发发现被分为以下区域：牙牙槽结构、上颌骨和下颌骨、鼻窦、颞下颌关节（TMJ）、鼻/口咽气道、颈椎和神经血管管。偶发发现进一步分为对预期治疗计划的重要性。
所有扫描均发现偶发发现。共发现 555 个偶发发现（每扫描 1.85 个发现）。鼻窦的偶发发现数量最多（34%），其次是牙牙槽结构（31%）、鼻/口咽气道（12%）、上颌骨和下颌骨（10%）、TMJ（6%）、颈椎（4%）和神经血管管（3%）。共有 37%的发现需要随访。在 12%的情况下，偶发发现的检测导致对预期种植体治疗计划的修改或中止。
在 CBCT 扫描中，感兴趣区域内和之外的偶发发现很常见。老年人群中每扫描一次的偶发发现数量高于年轻人群。
