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目的了解目前牙科摄影机存在的防护性能问题。方法依据国家相关标准对牙科摄影机进检测评价。结果管电压值、管电压指示偏离和曝光时间指示偏离,分别占检测数量的58.3%(35台),28.3%(17台)和45%(27台)。结论检测结果表明,牙科摄影机完全符合国家标准占少数(约1/3),因此,必须加大监管力度,确保合理规范地应用牙科摄影,杜绝滥用X射线现象发生。
Objective To understand the current protective performance of dental cameras. Methods According to the relevant national standards for dental camera into the test evaluation. Results Tube voltage, tube voltage deviation and exposure time deviations accounted for 58.3% (35), 28.3% (17) and 45% (27) respectively of the test quantities. Conclusion The test results show that the dental camera fully accords with the minority national standards (about 1/3). Therefore, it is necessary to intensify the supervision and ensure the rational use of dental photography to prevent the abuse of X-ray.