在硬腭后部最常见的原发性恶性肿瘤中,有鳞状细胞癌(或表皮样癌)和小涎腺的恶性肿瘤。外科手术治疗常常需要切除硬腭的骨组织。近年来,随着外科正畸学的发展,提出经口内行半侧上颌骨切除术,从而避免面部切口所带来的畸形。术后可用上颌骨膺复体修复骨缺损。 Among the most common primary malignancies behind the hard palate are squamous cell carcinoma (or epidermoid carcinoma) and small salivary gland malignancies. Surgical treatment often requires the removal of hard palate bone tissue. In recent years, with the development of surgical orthodontics, proposed by the mouth of the maxillary semi-maxillary resection, so as to avoid the facial incision caused by deformity. The maxillary prosthesis can be used to repair the bone defect after operation.