不同海拔环境对便携式牙科治疗机工作性能的影响研究  

Influences of different altitude environments on performance of portable dental unit

作　　者：张钰 庞媛姝 杨小丽 李晓飞 付崇建 ZHANG Yu;PANG Yuan-shu;YANG Xiao-li;LI Xiao-fei;FU Chong-jian(Department of Stomatology,the 960th Hospital of Joint Logistics Support Force,Jinan 250031,China)

机构地区：[1]联勤保障部队第960医院口腔科,济南250031

出　　处：《医疗卫生装备》2024年第5期52-55,共4页Chinese Medical Equipment Journal

基　　金：青年自主创新科学基金项目(2023MS05)。

摘　　要：目的:探讨不同海拔环境对便携式牙科治疗机工作性能的影响。方法:选择海拔依次增高的A、B、C 3个地区,平均海拔分别为70.0、3 857.0、4 820.0 m,测量并计算3个地区的平均室温、平均大气压力及平均空气密度等相关环境数据。在3个地区分别测试便携式牙科治疗机的准备时间(T准备)、持续工作时间(T持续)、工作产热及手机输出压力等性能指标,并以低海拔地区A的测试结果为对照基线,与高海拔地区B及C的测试结果进行比较。采用SPSS 29.0统计学软件进行数据分析。结果:地区B、C的平均大气压力及平均空气密度均明显低于地区A,差异有统计学意义(P<0.05)。便携式牙科治疗机在地区B、C的平均T准备较地区A明显延长,但其平均T持续却明显短于地区A,差异有统计学意义(P<0.05)。便携式牙科治疗机在地区B、C持续工作15 min的平均工作产热均显著高于其在地区A的平均工作产热,但其在地区B、C的平均手机输出压力却明显低于地区A,差异有统计学意义(P<0.05)。结论:高海拔环境相较于低海拔环境会对便携式牙科治疗机的工作性能产生较大的不利影响。Objective To explore the influences of different altitude environments on the performance of the portable dental unit.Methods Three regions with increasing altitudes(A(70.0 m),B(3857.0 m)and C(4820.0 m))were selected,and relevant environment parameters in the regions were measured including average room temperature,average atmospheric pressure and average air density.The performance indicators of the portable dental unit were tested in the three regions such as preparation time(Tprep),continuous working time(Tcont),working heat generation and handpiece output pressure,and the test results of region A were compared with those of region B and C.SPSS 29.0 statistical software was used for data analysis.Results The average atmospheric pressure and average air density were significantly lower in region B and C than in region A,and the differences were statistically significant(P<0.05).The portable dental unit had the average Tprep prolonged and Tcont shortened significantly in region B and C when compared those in region A(P<0.05),whose mean working heat generation after 15-min operation was higher and mean handpiece output pressure was lower obviously in region B and C than in region A(P<0.05).Conclusion Higher altitude environments can have negative effects on the performance of the portable dental unit when compared with lower altitude environments.

关 键 词：便携式牙科治疗机 高原环境 工作性能 

分 类 号：R318.6[医药卫生—生物医学工程] TH787[医药卫生—基础医学]