长春市口腔临床应用光固化灯的调查  

A survey of power density of clinical curing-light units used in Changchun

作　　者：郝新青[1] 罗梦[1] 冷鑫[1] 朱松[1] 

机构地区：[1]吉林大学口腔医学院修复科,长春130021

出　　处：《中华口腔医学杂志》2011年第9期558-561,共4页Chinese Journal of Stomatology

摘　　要：目的渊查长春市临床应用光固化灯的功率密度及其相关信息，为临床医师正确维护使用光固化灯提供参考。方法蒯查对象为长春市口腔专科医院、综合医院口腔科、民营诊所，采用简单随机抽样的方法，共检测270盏光固化灯的功率密度及相关信息，包括光固化灯的品牌、类型、使用年限、光导头数目及类型，光导头玷污、破损情况，使用频率，装置的检测及维修情况，灯数目／牙椅数。结果270盏光同化灯中，肉光灯174盏，发光二极管灯96盏，检测功率密度变化范围在0～1702mW／cm2，平均功率密度为413．2mW／cm2，73盏灯小于200mW／cm2，不能充分聚合光固化复合树脂。光同化灯的平均使用年限为4．7年。大多数医师未检测过光同化灯的功率密度，84％（227／270）的光导头表面有树脂的玷污和破损。结论长春市大部分光固化灯为卤光灯，部分灯老化明显，需要更新，大多数医师没有注意光崮化灯需要定期检测和维修。Objectives To investigate the power density and other relevant data of clinical curing- light units used in Changchun, and to provide practice recommendations to clinical dentists about maintaining of cuing-light units. Methods Stomatology hospitals, departments of stomatology in general hospitals, and private dental offices in Changehun were randomly selected to participate in the Survey. The investigation analyzed 270 curing-light units. The following data of curing-light units were gathered ： brand, type, operation ages, numbers and types of light guide, resin build-ups on light guides, damages of light guides, use frequency, monitor and maintenance of curing lights, and unit numbers/chair numbers. Results There were 174 QTH and 96 LED units. The distribution of power density was from 0 to 1702 mW/em2. The mean power density was 413.2 mW/cm2. The power densities of 73 lights were less than 200 mW/cm2 and could not polymerize resin composites adequately. The mean number of operation age of the light units was 4. 74 years. Most of clinical dentists didn＇t monitor the light-curing units and the situation of build-up from composite resin or damages on light guides was very severe. Conclusions Most of the light-curing units used in Changchun were QTH. Some QTH units degenerate severely and need to be replaced with the new ones. Most of the clinical doctors lack the knowledge of how to properly monitor and maintain the light-curing units.

关 键 词：复合树脂类 才制备 口腔修复 光固化灯 

分 类 号：R783.1[医药卫生—口腔医学]