EXPOSURE TO METHYL METHACRYLATE AND ITS SUBJECTIVE SYMPTOMS AMONG DENTAL TECHNICIANS, TEHRAN-IRAN

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GOLBABAEI FARIDEH; MAMDOUH M.; NOURI JELIANI K.A.; SHAHTAHERI S.J.A.D.

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Journal: IRAN OCCUPATIONAL HEALTH JOURNAL Year:2007 | Volume:3 | Issue:3-4 Page(s): 33-38

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Title

EXPOSURE TO METHYL METHACRYLATE AND ITS SUBJECTIVE SYMPTOMS AMONG DENTAL TECHNICIANS, TEHRAN-IRAN

Author(s)

GOLBABAEI FARIDEH | MAMDOUH M. | NOURI JELIANI K.A. | SHAHTAHERI S.J.A.D. | Issue Writer Certificate

Keywords

METHYL METHACRYLATE (MMA)Q4

DENTAL TECHNICIANSQ4

DENTAL LABORATORIESQ4

HEALTH SYMPTOMSQ4

TIME- WEIGHTED AVERAGE (TWA) CONCENTRATIONQ4

PEAK CONCENTRATIONQ4

Abstract

Background and Aims: Methyl Methacrylate (MMA) which is known as a long, skin and eye irritant is the most common form of acrylic plastic used in dental laboratories. The aims of this study were to evaluate DENTAL TECHNICIANS, exposure to MMA and to assess their health with a focus on respiratory and dermal symptoms. Method: Exposure to MMA, total dust and HEALTH SYMPTOMS were investigated in 20 DENTAL LABORATORIES located in Tehran, Iran. Time weighted average (TWA) of MMA and PEAK CONCENTRATIONs were determined, using XAD-2 tubes followed by GC-ID analysis. Total dust was evaluated gravimetrically. HEALTH SYMPTOMS were asked using a questionnaire. Results: The TWA for technicians with direct and indirect exposure to MMA were 327.28 + 79.42 and 282.9 + 41.84 mg/m3, respectively. PEAK CONCENTRATION of MMA for those technicians was 337.0 + 36.81 and 328.88 + 45.40 mg/m3, respectively. There were no significant differences between TWA of MMA and PEAK CONCENTRATION in different weakly workdays; low ever, within - day variations were observed (P<0.05). TWA of MMA and PEAK CONCENTRATION correlation with the laboratory volume were 0.61- 0.65, Dust exposure of technicians was 2.35 + 2.70 mg/m3. Cough and Skin dryness were the common HEALTH SYMPTOMS. Smoking and asbestos exposure history were factors influencing cough prevalence (P<0.005). Conclusion: It is concluded that the current short - Term Exposure Limit (STEL) is not low enough to protect technicians against the adverse effects caused by MMA.

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APA: Copy

GOLBABAEI, FARIDEH, MAMDOUH, M., NOURI JELIANI, K.A., & SHAHTAHERI, S.J.A.D.. (2007). EXPOSURE TO METHYL METHACRYLATE AND ITS SUBJECTIVE SYMPTOMS AMONG DENTAL TECHNICIANS, TEHRAN-IRAN. IRAN OCCUPATIONAL HEALTH JOURNAL, 3(3-4), 33-38. SID. https://sid.ir/paper/128978/en

Vancouver: Copy

GOLBABAEI FARIDEH, MAMDOUH M., NOURI JELIANI K.A., SHAHTAHERI S.J.A.D.. EXPOSURE TO METHYL METHACRYLATE AND ITS SUBJECTIVE SYMPTOMS AMONG DENTAL TECHNICIANS, TEHRAN-IRAN. IRAN OCCUPATIONAL HEALTH JOURNAL[Internet]. 2007;3(3-4):33-38. Available from: https://sid.ir/paper/128978/en

IEEE: Copy

FARIDEH GOLBABAEI, M. MAMDOUH, K.A. NOURI JELIANI, and S.J.A.D. SHAHTAHERI, “EXPOSURE TO METHYL METHACRYLATE AND ITS SUBJECTIVE SYMPTOMS AMONG DENTAL TECHNICIANS, TEHRAN-IRAN,” IRAN OCCUPATIONAL HEALTH JOURNAL, vol. 3, no. 3-4, pp. 33–38, 2007, [Online]. Available: https://sid.ir/paper/128978/en

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