Analiza fizikalnih parametrov na izbranih delovnih mestih laboratorijskega zobnega protetika : diplomsko delo

Zadnikar, Vesna (author), Kacjan Žgajnar, Katarina (mentor), Bohinc, Peter (comentor), Bohinc, Klemen (reviewer)

Uvod: Tako kot pri vsakem poklicu se tudi laboratorijski zobni protetiki med delom na delovnih mestih srečujejo z različnimi tveganji in obremenitvami. Tveganja na delovnih mestih so lahko fizikalna, kemijska, biološka in psihosocialna. Namen: Ugotoviti smo želeli, kakšni so pogoji na delovnem mestu laboratorijskega zobnega protetika. Izmerili smo fizikalne parametre mikroklimo, osvetljenost in hrup ter izračunali občuteno temperaturo ter indeksa pričakovane presoje toplotnega občutja (PMV) in pričakovanega odstotka nezadovoljnih ljudi za toplotno ugodje (PPD) v izbranem ortodontskem laboratoriju in v učnem laboratoriju laboratorijske zobne protetike. Rezultate smo nato primerjali z veljavno zakonodajo ter podali ukrepe in priporočila za izboljšavo. Metode dela: Uporabili smo kvantitativno metodo, za merjenje fizikalnih parametrov smo uporabili merilnik mikroklime (Testo 445), termografsko kamero (Flir E6), merilnik hrupa (Brüel & Kjaer 2260 Investigator) in merilnik osvetljenosti (Testo 545). Rezultati: Rezultati so pokazali, da je večina meritev skladnih s predpisanimi zahtevami pravilnikov, nekaj je bilo odstopanj. V učnem laboratoriju laboratorijske zobne protetike je relativna vlažnost znašala 28,5 %, kar je nižje od zahtevanih najmanj 30 % relativne vlažnosti zraka. Meritve temperature v obeh laboratorijih so bile nad 24 °C, v pravilniku je zahtevano od 19 °C do 24 °C, v učnem laboratoriju ni bila ustrezna temperatura tal (26,2 °C), saj je zgornja meja površinske temperature poda 26 °C. V učnem laboratoriju LZP je srednja hitrost gibanja zraka znašala 0,16 m/s, kar odstopa od priporočenih 0,15 m/s. Hrup v obeh laboratorijih presega zgornjo mejno vrednost 87 dB(A), v ortodontskem laboratoriju smo namerili do 88,5 dB(A), v učnem laboratoriju LZP pa do 102 dB(A). Razprava in zaključek: V ortodontskem laboratoriju priporočamo vzdrževanje nekoliko nižje temperature prostora ter uporabo čepkov za ušesa. V učnem laboratoriju LZP priporočamo vlažilce zraka, vzdrževanje nekoliko nižje temperature, zmanjšanje hitrosti zraka klimatskih naprav in uporabo čepkov za ušesa.

• Language: Slovenian
• Keywords: diplomska dela, laboratorijska zobna protetika, delovno mesto, meritve, fizikalni parametri, mikroklima, osvetljenost, hrup
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: ZF - Faculty of Health Sciences
• Place of publishing: Ljubljana
• Publisher: [V. Zadnikar]
• Year: 2025
• Number of pages: 31 str., [2] str. pril.
• PID: 20.500.12556/RUL-170846
• UDC: 616.31
• COBISS.SI-ID: 243004163
• Publication date in RUL: 18.07.2025

Secondary language

• Language: English
• Title: Analysis of physical parameters at selected workplaces of the laboratory dental prosthetics : diploma work

Abstract

Introduction: As in any profession, laboratory dental prosthetics face a variety of risks and burdens during their work in workplace. Workplace risks can be physical, chemical, biological, and psychosocial. Purpose: To determine the working conditions of laboratory dental prosthetics. We measured physical parameters (microclimate, illuminance, and noise) and calculated perceived temperature, predicted mean vote (PMV), and predicted percentage of dissatisfied (PPD) in a selected orthodontic laboratory and in a training laboratory for dental prosthetics. The results were compared with the current legislation and provided measures and recommendations for improvement were made. Methods: We used a quantitative method. To measure physical parameters, we used a microclimate meter (Testo 445), a termographic camera (Flir E6), a noise meter (Brüel & Kjaer 2260 Investigator), and a luminance meter (Testo 545). Results: The results showed that most of the measurements were in accordance with the requirements of the regulations, but there were a few deviations. In the training laboratory for dental prosthetics, the relative humidity was 28.5%, which is below the required minimum of 30%. Temperature measurements in both laboratories were above 24 °C, while the regulations require between 19 °C and 24 °C. In the training laboratory the floor temperature of 26.2 °C was not adequate, as the upper limit of the surface temperature of the flooris 26 °C. In the training laboratory, the mean air velocity was 0.16 m/s, which deviates from the recommended 0.15 m/s. Noise levels in both laboratories exceeded the upper limit of 87 dB(A); we measured up to 88.5 dB(A) in the orthodontic laboratory and up to 102 dB(A) in the training laboratory. Discussion and conclusion: In the orthodontic laboratory, we recommend maintaining a slightly lower room temperature and the use of earplugs. In the training laboratory, we recommend the humidifiers, maintaining a slightly lower temperature, reducing the air speed of air-conditioners and the use of earplugs.

• Keywords: diploma theses, laboratory dental prosthetics, workplace, measurements, physical parameters, microclimate, illuminance, noise