Pain and discomfort following immediate and delayed loading by overdentures in the single mandibular implant study (SMIS)
Pain and discomfort following immediate and delayed loading by overdentures in the single mandibular implant study (SMIS)
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DOI：
10.1007/s00784-016-1930-0
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发表时间：
2017-03-01
影响因子：
3.4
通讯作者：
Kern, M.
中科院分区：
文献类型：
--
作者：
Mundt, T.;Passia, N.;Kern, M.
这项随机临床试验比较了支持下颌覆盖义齿的单个种植体的即时和延迟加载。这项初步分析的目的是检验即刻加载的患者是否比延迟加载的患者在干预过程中经历更少的疼痛和不适。来自9所德国牙科学校的无牙颌患者接受了长度为11 mm的中线种植体。将最小插入扭矩为30 Ncm、种植体稳定性商数为ae 60的种植体随机分配到A组，使用球形附件立即加载或B组在3个月后延迟加载。患者在手术当天和术后1、2、3和7天完成了关于疼痛、咀嚼疼痛、肿胀、出血和干预感知的100 mm视觉模拟量表问卷调查。A组81例，B组74例，采用Wilcoxon-Mann-Whitney检验（P < 0.05）。疼痛和不适的中位数为中度（<30）。与B组相比，A组受试者从植入后第一天开始感觉到明显更多的疼痛，从第三天开始感觉到更多的肿胀。个体对干预措施的感知在组间无显著差异。即刻加载引起的术后疼痛和肿胀比两个阶段的延迟加载更多。应仔细考虑下颌中线单个种植体支持覆盖义齿的即刻加载。
This randomized clinical trial compares immediate and delayed loading of single implants to support mandibular overdentures. The aim of this preliminary analysis is to test the hypothesis whether patients with immediate loading will experience less pain and discomfort through the intervention than patients with delayed loading.Edentulous patients in nine German dental schools received a midline implant with a length of 11 mm. Implants with a minimum insertion torque of 30 Ncm and an implant stability quotient of ae60 were randomly allocated to group A for immediate loading using ball attachments or to group B for delayed loading after 3 months. Patients completed questionnaires with 100-mm visual analogue scales about the items pain, pain during chewing, swelling, bleeding, and perception of the intervention at the day of surgery and 1, 2, 3, and 7 days, thereafter. Groups were compared by Wilcoxon-Mann-Whitney tests (P ae 0.05).The questionnaires of 81 patients in group A and 74 patients in group B were completed. The medians for pain and discomfort were moderate (< 30). Participants of group A felt significantly more pain from the first day and more swelling from the third day after implantation than participants of group B. The individual perception of interventions showed no significant differences between groups.Immediate loading evoked more postoperative pain and swelling than the two stages of delayed loading.Immediate loading of a single mandibular midline implant supporting overdentures should be carefully considered.