Valencia University Medical and Dental School, Valencia, Spain. miguel,
Int J Oral Maxillofac Implants. 2009 Sep-Oct;24(5):936-42.
The aim of this study was to present an alternative treatment concept for the rehabilitation of the atrophic maxilla that used the nasopalatine canal as an anatomic buttress for dental implant insertion and to assess patient satisfaction with this treatment.
The inclusion criterion for the study consisted of the presence of severe resorption of the edentulous maxilla (Class V according to the Cawood and Howell classification). In each patient, one implant was positioned in the nasopalatine canal. Additional implants were also placed in the remaining maxillary bone. The patients were followed for a minimum of 2 years after prosthesis connection. Satisfaction with the prosthesis was evaluated after 12 months using a visual analog scale.
Seven patients with severely resorbed edentulous maxillae received a total of seven implants in the nasopalatine buttress and 29 implants posterior to this structure. One of the seven implants in the nasopalatine canal was lost during the osseointegration phase. All patients had stable prostheses at the end of the observation period. Patients were satisfied with comfort and stability, ability to speak, ease of cleaning, and esthetics and function of the prosthesis. Five patients experienced minor sensory alterations during the first weeks after surgery. At the final examination, which took place after a mean of 5 years (range, 3 to 7 years), all patients expressed the presence of normal sensation.
It appears that implants in the nasopalatine canal may be a viable treatment approach for the rehabilitation of the severely atrophied maxilla. Patients were satisfied with a prosthesis supported by implants in the nasopalatine canal.
本研究旨在提出一种替代治疗方案，用于修复萎缩性上颌骨，利用鼻腭管作为牙种植体插入的解剖支撑，并评估患者对此治疗的满意度。
该研究的纳入标准为无牙上颌严重吸收（根据 Cawood 和 Howell 分类为 V 类）。每位患者在鼻腭管中植入一颗种植体。其余上颌骨中也植入了额外的种植体。在连接义齿后，患者至少随访 2 年。在 12 个月时使用视觉模拟量表评估对义齿的满意度。
7 名上颌严重萎缩的患者共在鼻腭管支撑结构中植入了 7 颗种植体，在该结构之后植入了 29 颗种植体。在骨整合阶段，7 颗鼻腭管种植体中有 1 颗脱落。在观察期结束时，所有患者都有稳定的义齿。患者对舒适度和稳定性、说话能力、清洁方便性以及义齿的美观和功能表示满意。5 名患者在手术后的第一周经历了轻微的感觉改变。在最终检查时，平均随访 5 年（范围 3 至 7 年），所有患者均表示存在正常感觉。
似乎鼻腭管中的种植体可能是一种可行的治疗方案，用于修复严重萎缩的上颌骨。患者对鼻腭管种植体支撑的义齿感到满意。
