口腔外抽吸机对喷粉洁牙诊室空气污染控制的效果

Effect of dental dust collector on controlling air pollution in sandblasting room

摘要:

［摘要］目的探讨应用口腔外抽吸机对喷粉洁牙诊室空气污染进行干预的效果。方法采用细菌沉降法、粉尘采样器监测法分时间段，同步对某院口腔科喷粉洁牙诊室进行监测。实验组在喷粉洁牙过程中应用口腔外抽吸机进行干预，对照组未采取此干预措施，比较两组治疗前、中、后空气中的菌落数及粉尘密度。结果治疗前实验组与对照组空气中菌落数［(273.30±85.30) CFU/m3 vs（265.30±90.30）CFU/m3］及粉尘密度［(0.47±0.03) mg/m3 vs(0.45±0.04) mg/m3］比较，差异均无统计学意义(P＞0.05)；治疗中和治疗后实验组空气中菌落数分别为 (512.60±99.30) CFU/m3、（350.70±62.40）CFU/m3，粉尘密度分别为(0.61±0.23) mg/m3、(0.52±0.16) mg/m3，均显著低于对照组［分别为（918.90±135.20）CFU/m3、（488.50±85.20）CFU/m3、（3.26±0.35）mg/m3、（1.65±0.21）mg/m3］（P＜0.01或P＜0.05）。结论喷粉洁牙对口腔诊室的空气造成严重污染，使用口腔外抽吸机及时清除污染物，可以有效控制污染产生的源头，保持口腔诊室空气的洁净。

Abstract:

ObjectiveTo investigate the effect of dental dust collector on controlling air pollution in sandblasting room.MethodsBacterial sedimentation method and dust sampler monitoring method were adopted to monitor the air in a dental sandblasting room.The experimental group used dental dust collector to intervene during cleaning, control group was not taken intervention, the air colony forming unit and dust density before,during and after treatment were compared.ResultsBefore treatment, there were no significant differences in air bacterial count and dust density between two groups (［273.30±85.30］ CFU/m3 vs［265.30±90.30］CFU/m3,P＞0.05; ［0.47±0.03］ mg/m3 vs ［0.45±0.04］ mg/m3, P＞0.05)；during and after treatment, air bacterial count in experimental group were (512.60±99.30) CFU/m3 and （350.70±62.40）CFU/m3 respectively, dust density were (0.61±0.23) mg/m3 and (0.52±0.16) mg/m3 respectively, which were significantly lower than that of control group respectively(［918.90±135.20］CFU/m3,［488.50±85.20］CFU/m3,［3.26±0.35］mg/m3,［1.65±0.21］mg/m3)（P＜0.01 or P＜0.05）.ConclusionDental sandblasting cause air pollution seriously, dental dust collector can effectively remove pollutants， control the sources of pollution, and maintain the cleanliness of the air in dental clinic.