School of Dental Medicine, University of Zagreb, Croatian Dental Society - Croatian Medical Association
Abstract
Svrha: Zadatak istraživanja bio je izmjeriti koncentraciju fluorida u vodovodnoj vodi u sjevernom hrvatskom gradu Čazmi i u komercijalno dostupnim napitcima. Materijali i metode: Koncentracija fluorida određena je fluorid-selektivnom elektrodom u uzorcima vode iz vodovoda i komercijalno dostupnih napitaka. Pritom je pH određen ion-selektivnom elektrodom za vodik. Rezultati: Sadržaj fluorida u vodovodnoj vodi iznosio je 0,313 mg F-/L. Od komercijalno dostupnih napitaka najveća koncentracija izmjerena je u gaziranoj mineralnoj vodi (0,34 – 1,5 mg F-/L) te u ledenim čajevima (0,06 – 0,74 mg F-/L). Negazirane vode i sokovi te gazirani sokovi imali su vrlo nizak sadržaj fluorida i iznosili su redom <0,01 mg F-/L, 0,06 – 0,15 mg F-/L i 0,02 mg F-/L. U gaziranim napitcima pH je iznosio od 2,36 do 2,68, a u sokovima od 3,08 do 3,64. Zaključak: Niska koncentracija fluorida u napitcima te kombinacija niskog pH i dodanih šećera mogla bi imati visoki kariogeni potencijal. Rezultati ovog istraživanja mogli bi se iskoristiti za planiranje preventivnih mjera.The aim of this study was to measure the concentration of fluorides in tap water in northern Croatian town Čazma and commercially available bottled drinks. Materials and Methods: Fluoride content was assessed by fluoride-selective electrode in tap water and commercial drinks from public supply. The pH was assessed by hydrogen ion-selective electrode. Results: Fluoride content in tap water was 0.313 mg F-/L. In commercially available bottled drinks fluoride concentration was the highest in carbonated mineral water (0.34 – 1.5 mg F-/L), followed by some ice tea drinks (0.06 – 0.74 mg F-/L). Non-carbonated waters, carbonated soft drinks and noncarbonated soft drinks had very low fluoride concentration and it amounted to <0.01 mg F-/L, 0.02 mg F-/L and 0.06 – 0.15 mg F-/L, respectively. The pH in carbonated drinks was 2.36 – 2.68 and 3.08 – 3.64 in juices. Conclusion: Low concentration of fluorides in soft drinks and low pH in combination with added sugars could be cariogenic. The results obtained in this investigation could be used in planning preventive measures
