Baumann M A
Poliklinik für Zahnerhaltung und Parodontologie, Cologne, Germany.
Br Dent J. 1995 Aug 19;179(4):130-5. doi: 10.1038/sj.bdj.4808854.
The increased wearing of gloves during dental treatment has created new problems for general dental practitioners. One of these is the retarded set or total inhibition of addition silicones caused by natural latex gloves. This study was designed to test different gloves and impression materials in common use. Eight latex gloves, selected with different properties representing all possible types, together with four non-latex gloves, made of neoprene, styrene-butadiene, polyethylene and polyvinylchloride, were tested. As a control, mixing with bare hands and with maize starch was carried out. The viscosity changes of five types of impression materials (polyvinylsiloxanes, condensation silicones, alginates, polyether and polysulphides) were measured with a Zwick hardness tester to give the Shore A hardness. No impression materials other than polyvinylsiloxanes were affected by pure latex gloves and those only by two brands. All other impression materials can be mixed and handled with gloved hands without affecting their setting time. The retarded set of polyvinylsiloxanes caused by natural latex gloves is not so widespread as had previously been thought.
牙科治疗中手套使用的增加给普通牙科医生带来了新问题。其中之一是天然乳胶手套导致加成型硅橡胶凝固延迟或完全抑制。本研究旨在测试常用的不同手套和印模材料。选取了代表所有可能类型的具有不同特性的八副乳胶手套，以及由氯丁橡胶、丁苯橡胶、聚乙烯和聚氯乙烯制成的四副非乳胶手套进行测试。作为对照，进行了徒手混合和与玉米淀粉混合的操作。使用Zwick硬度测试仪测量五种印模材料（聚乙烯基硅氧烷、缩合型硅橡胶、藻酸盐、聚醚和聚硫橡胶）的粘度变化，以得出邵氏A硬度。除聚乙烯基硅氧烷外，没有其他印模材料受到纯乳胶手套的影响，且只有两个品牌的乳胶手套会影响聚乙烯基硅氧烷。所有其他印模材料都可以戴着手套进行混合和操作，而不会影响其凝固时间。天然乳胶手套导致的聚乙烯基硅氧烷凝固延迟并不像之前认为的那么普遍。
