Symington O G, Caminiti M F
Toronto Hospital, Ontaria, Canada.
J Can Dent Assoc. 1995 Dec;61(12):1048-52.
The ameloblastoma is a slow-growing insidious tumor derived from the dental lamina. It may be described as locally invasive and clinically persistent, and it has high recurrence rates if adequate treatment is not rendered. From a clinical perspective, the maxillary ameloblastoma is considered to be more aggressive than its mandibular counterpart. This is because the maxillary bone is thin and more easily penetrated, and not because of a difference in biological behavior. In the treatment of intraosseous multicystic or solid maxillary ameloblastomas, many authors stress the need for adequate access to achieve a proper surgical resection. This paper presents a case of maxillary ameloblastoma that was treated using a Le Fort 1 downfracture technique in combination with a segmental resection of the posterior part of the left maxilla. The Le Fort 1 technique provided excellent access and visibility, especially on the medial aspect of the resection. No major problems were encountered with the technique. Six months after the resection, the patient remained clinically and radiographically free of the tumor. The need for long-term follow-up is stressed.
成釉细胞瘤是一种源自牙板的生长缓慢且隐匿的肿瘤。它可被描述为具有局部侵袭性且临床上持续存在，如果未进行充分治疗，其复发率很高。从临床角度来看，上颌成釉细胞瘤被认为比下颌成釉细胞瘤更具侵袭性。这是因为上颌骨较薄且更容易被穿透，而非生物学行为存在差异。在治疗骨内多囊性或实性上颌成釉细胞瘤时，许多作者强调需要有足够的手术入路以实现恰当的手术切除。本文介绍了一例上颌成釉细胞瘤病例，该病例采用勒福Ⅰ型截骨术结合左上颌后部节段性切除进行治疗。勒福Ⅰ型技术提供了极佳的手术入路和视野，尤其是在切除部位的内侧。该技术未遇到重大问题。切除术后六个月，患者在临床和影像学上均未发现肿瘤。强调了长期随访的必要性。
