| 黄芳,秦烨,吴媛,唐菊华,朱晓芬,吴敏,刘晓芬.上海市4家公立口腔医疗机构光固化灯辐照强度与复合树脂适配性的现状调查[J].口腔材料器械杂志,2026,35(3):176-180. |
| 上海市4家公立口腔医疗机构光固化灯辐照强度与复合树脂适配性的现状调查 |
| Investigation on the Irradiance of Light-Curing Units and Their Compatibility with Composite Resins in Four Public Dental Medical Institutions in Shanghai |
| 投稿时间：2025-08-04 修订日期：2026-01-02 |
| DOI：10.11752/j.kqcl.2026.03.09 |
| 中文关键词: 光固化灯 辐照强度 设备老化 复合树脂 适配性 |
| 英文关键词:Light-curing lamp Irradiance intensity Equipment aging Composite resin Compatibility |
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| 中文摘要: |
| 目的 调查上海市4家公立口腔医疗机构临床在用光固化灯的辐照强度现状，评估其与5种常用复合树脂最低固化阈值的适配性。方法 采用便利抽样法，选取上海市4家公立口腔医疗机构，运用MARC Blue Light Analytics辐射仪于0 mm距离、20 s固化模式下，对共226盏（9个品牌）临床在用LED光固化灯的辐照强度进行检测，将实测值与5种常用复合树脂产品说明书规定的最低固化阈值进行比对，以评估其适配性。结果 226盏光固化灯的平均辐照强度为748 mW/cm2，其中90.27%的光固化灯辐照强度高于515 mW/cm2。使用年限>10年组的平均辐照强度（612 mW/cm2）较使用年限<5年组（798 mW/cm2）下降23.3%。适配性评估显示，1.77%的光固化灯因辐照强度低于400 mW/cm2无法适配任何受试树脂，另有7.96%的光固化灯辐照强度低于500 mW/cm2，无法满足4款常用树脂的固化要求，仅有39.82%的光固化灯辐照强度≥800 mW/cm2，可完全适配所有5种树脂。结论 本调查所涉及的4家机构中，设备使用年限是导致辐照强度衰减的关键因素，约9.73%的光固化灯因辐照强度不足，难以满足临床常用复合树脂（尤其是高阈值树脂）的固化需求。 |
| 英文摘要: |
| Objective To investigate the current status of irradiance intensity of clinically used lightcuring lamps in 4 public dental medical institutions in Shanghai, and to evaluate their compatibility with the minimum curing thresholds of 5 commonly used composite resins. Methods A convenient sampling method was adopted to select 4 public dental medical institutions in Shanghai. The irradiance intensity of a total of 226 clinically used LED light-curing lamps（covering 9 brands） was measured using a MARC Blue Light Analytics radiometer at a distance of 0 mm under the 20-second curing mode. The measured values were compared with the minimum curing thresholds specified in the product specifications of 5 commonly used composite resins to assess their compatibility. Results The average irradiance intensity of the 226 light-curing lamps was 748 mW/cm2, among which 90.27% had an irradiance intensity higher than 515 mW/cm2. The average irradiance intensity of the group with service life>10 years（612 mW/cm2） decreased by 23.3% compared with that of the group with service life<5 years（798mW/cm2）. Compatibility evaluation showed that 1.77% of the light-curing lamps could not be compatible with any of the tested resins because their irradiance intensity was lower than 400 mW/cm2, and another 7.96% could not meet the curing requirements of 4 commonly used resins due to irradiance intensity lower than 500 m W/cm2. Only 39.82% of the light-curing lamps had an irradiance intensity ≥ 800 mW/cm2, which could be fully compatible with all 5resins. Conclusion Among the 4 institutions involved in this survey, the service life of the equipment is a key factor leading to the attenuation of irradiance intensity. Approximately 9.73% of the light-curing lamps are difficult to meet the curing needs of clinically used composite resins（especially high-threshold resins） due to insufficient irradiance intensity. |
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