Jemt Torsten, Kowar Jan, Nilsson Mats, Stenport Victoria
Int J Prosthodont. 2015 Nov-Dec;28(6):569-76. doi: 10.11607/ijp.4644.
Little is known about the relationship between implant patient mortality compared to reference populations. The aim of this study was to report the mortality pattern in patients treated with dental implants up to a 15-year period, and to compare this to mortality in reference populations with regard to age at surgery, sex, and degree of tooth loss.
Patient cumulative survival rate (CSR) was calculated for a total of 4,231 treated implant patients from a single clinic. Information was based on surgical registers in the clinic and the National Population Register in Sweden. Patients were arranged into age groups of 10 years, and CSR was compared to that of the reference population of comparable age and reported in relation to age at surgery, sex, and type of jaw/dentition.
A similar, consistent, general relationship between CSR of different age groups of implant patients and reference populations could be observed for all parameters studied. Completely edentulous patients presented higher mortality than partially edentulous patients (P < .05). Furthermore, implant patients in younger age groups showed mortality similar to or higher than reference populations, while older patient age groups showed increasingly lower mortality than comparable reference populations for edentulous and partially edentulous patients (P < .05).
A consistent pattern of mortality in different age groups of patients compared to reference populations was observed, indicating higher patient mortality in younger age groups and lower in older groups. The reported pattern is not assumed to be related to implant treatment per se, but is assumed to reflect the variation in general health of a selected subgroup of treated implant patients compared to the reference population in different age groups.
与参考人群相比，关于种植牙患者死亡率之间的关系知之甚少。本研究的目的是报告接受种植牙治疗长达15年的患者的死亡率模式，并就手术时的年龄、性别和牙齿缺失程度将其与参考人群的死亡率进行比较。
计算了来自单一诊所的总共4231名接受种植牙治疗患者的累积生存率（CSR）。信息基于诊所的手术记录和瑞典国家人口登记册。患者按10岁年龄组进行分组，CSR与可比年龄的参考人群进行比较，并根据手术时的年龄、性别和颌骨/牙列类型进行报告。
对于所有研究参数，可观察到种植牙患者不同年龄组的CSR与参考人群之间存在相似、一致的总体关系。全口无牙患者的死亡率高于部分无牙患者（P < 0.05）。此外，较年轻年龄组的种植牙患者死亡率与参考人群相似或更高，而较年长年龄组的无牙和部分无牙患者死亡率则比可比参考人群越来越低（P < 0.05）。
观察到与参考人群相比，不同年龄组患者的死亡率模式一致，表明较年轻年龄组患者死亡率较高，较年长年龄组患者死亡率较低。所报告的模式并非假定与种植牙治疗本身相关，而是假定反映了与不同年龄组参考人群相比，接受种植牙治疗的选定亚组患者总体健康状况的差异。
