Signorini Luca, Faustini Fabio, Samarani Rawad, Grandi Tommaso
Private practice, Rome, Italy; Professor, Saint Camillus University of Health Science, Rome, Italy.
Private practice, Castelvetro Piacentino, Piacenza, Italy.
J Prosthet Dent. 2021 Jul;126(1):67-75. doi: 10.1016/j.prosdent.2020.04.005. Epub 2020 Jul 3.
Few investigations concerning the use of pterygoid implants have reported reproducible and consistent data, making survival data controversial.
The purpose of this clinical study was to investigate the 1-year survival and success rates of pterygoid implants and prostheses in participants affected by severe atrophy of the posterior maxilla requiring a complete-arch immediate fixed prosthesis.
Fifteen participants, either completely edentulous or with failing dentition in the maxillary arch and with severe atrophy of the posterior maxilla, were enrolled in the study. All participants underwent prosthodontic rehabilitation after implant placement in both the anterior maxilla areas and the pterygoid regions. The survival data of the implants were evaluated at the time of abutment connection by means of a mobility test for each implant. After placement of the prostheses, survival was assessed by means of marginal bone maintenance as assessed by panoramic radiographs and the absence of pain or symptoms of infection. The t test was used for evaluating the difference in age between men and women (α=.05). Correlations between categorical variables (Fisher exact test) were used to evaluate the possible association between the number of implants and both the age and presence of comorbidities (α=.05).
During the 1-year follow-up, high prosthesis stability and no implant loss were observed for all participants. In addition, participants did not report any pain or paresthesia. No peri-implant radiolucency was detected in the panoramic radiographs. Survival and success rates in the follow-up period were 100%.
The present study supports the conclusion that pterygoid implants have a high success rate with minimal or no complications.
关于翼状种植体使用的研究很少报告可重复且一致的数据，这使得生存数据存在争议。
本临床研究的目的是调查翼状种植体和修复体在患有上颌后牙区严重萎缩且需要全牙弓即刻固定修复体的参与者中的1年生存率和成功率。
15名参与者被纳入研究，他们全口无牙或上颌牙列缺失且上颌后牙区严重萎缩。所有参与者在上颌前部区域和翼状区域植入种植体后接受了口腔修复治疗。在连接基台时，通过对每个种植体进行松动度测试来评估种植体的生存数据。在安装修复体后，通过全景X线片评估边缘骨的维持情况以及是否存在疼痛或感染症状来评估生存情况。采用t检验评估男性和女性之间的年龄差异（α = 0.05）。使用分类变量之间的相关性（Fisher精确检验）来评估种植体数量与年龄和合并症存在之间的可能关联（α = 0.05）。
在1年的随访期间，所有参与者均观察到修复体稳定性高且无种植体丢失。此外，参与者未报告任何疼痛或感觉异常。全景X线片未检测到种植体周围的透射区。随访期的生存率和成功率均为100%。
本研究支持翼状种植体成功率高且并发症极少或无并发症这一结论。
