Health Promotion Research Center and Department of Environmental Health, School of Public Health, Zahedan University of Medical Sciences, Zahedan, Iran.
Waste Manag Res. 2014 Feb;32(2):157-64. doi: 10.1177/0734242X13520063.
The management of dental solid waste continues to be a major challenge, particularly in most healthcare facilities of the developing world. In Iran, few studies on management of dental solid waste and its composition are available. An effort has been made through this study to evaluate the hazardous and infectious status of dental solid waste, keeping in mind its possible role in cross-infection chain. For this study, 123 private dental centres and 36 public dental centres were selected and the composition and generation rate of dental solid waste produced were measured. Dental solid waste was classified to four main categories: (i) domestic-type; (ii) potentially infectious; (iii) chemical and pharmaceutical; and (iv) toxic, which constituted 11.7, 80.3, 6.3, and 1.7%, respectively, of the total. Also, the results indicated that the dental solid waste per patient per day generation rate for total, domestic-type, potentially infectious, chemical and pharmaceutical, and toxic wastes were 169.9, 8.6, 153.3, 11.2, and 3.3 g/patient/d, respectively. Furthermore, the per day generation rates for total, domestic-type, potentially infectious, chemical and pharmaceutical, and toxic wastes were 194.5, 22.6, 156.1, 12.3, and 3.4 kg/d, respectively. According to findings of this study, for best management of dental waste it is suggested that source reduction, separation, reuse, and recycling programmes be implemented and each section of dental waste be collected and disposed of separately and in accordance with related criteria.
牙科固体废物的管理仍然是一个主要挑战，尤其是在大多数发展中国家的医疗保健设施中。在伊朗，关于牙科固体废物的管理及其组成的研究很少。通过这项研究，我们努力评估牙科固体废物的危险和传染性状况，同时考虑到其在交叉感染链中的潜在作用。在这项研究中，选择了 123 家私人牙科中心和 36 家公共牙科中心，测量了产生的牙科固体废物的组成和产生率。牙科固体废物分为四大类：(i) 家庭型；(ii) 潜在传染性；(iii) 化学和制药；以及 (iv) 有毒，分别占总数的 11.7%、80.3%、6.3%和 1.7%。此外，结果表明，每位患者每天产生的牙科固体废物总量、家庭型、潜在传染性、化学和制药以及有毒废物分别为 169.9、8.6、153.3、11.2 和 3.3 克/患者/天。此外，每天产生的总废物、家庭型废物、潜在传染性废物、化学和制药废物以及有毒废物分别为 194.5、22.6、156.1、12.3 和 3.4 千克/天。根据这项研究的结果，为了对牙科废物进行最佳管理，建议实施源头减少、分离、再利用和回收计划，并对牙科废物的各个部分进行单独收集和处理，符合相关标准。
