Cilj: Izmjeriti razliku elektricnog potencijala i pH u usnoj supljini pacijenata s erozivnim i neerozivnim oralnim lihen planusom (OLP) koji istovremeno u ustima imaju vise razlicitih dentalnih legura. Metode: U studiji je sudjelovalo 10 pacijenata s erozivnim OLP-om, 22 pacijenta s neerozivnim OLP-om i 29 kontrolnih ispitanika bez OLP-a. Svi ispitanici u usnoj supljini trebali su imati najmanje 2 razlicite legure – minimalno jedan amalgamski ispun i neku drugu dentalnu leguru. Razlika elektricnog potencijala mjerena je uporabom kompjutorski kontroliranog milivoltmetra, a pH sline uporabom pH indikatorskih papirica. Rezultati: Razlika elektricnog potencijala u pacijenata s erozivnim OLP-om iznosila je 120 (45 – 275) mV, u pacijenata s neerozivnim OLP- om 153 (45 – 230) mV, a u kontrolnih ispitanika 140 (45 – 265) mV. Kruskal-Wallisovim testom nije utvrđena statisticki znacajna razlika između skupina u razlici elektricnog potencijala (P = 0, 689). Između skupina nije utvrđena znacajna razlika u pH sline (P = 0, 322). Rasprava i zakljucak: Vrijednosti razlike elektricnog potencijala i pH sline u pacijenata s erozivnim i neerozivnim oblikom OLP-a ne razlikuju se od pacijenata koji ne boluju od OLP-a, sto sugerira da kod OLP-a nije potrebna zamjena amalgama.

Disappearance of old cultivars, including dry and snap bean (Phaseolus vulgaris L.) has been accelerated in last five to six decades, which mainly led to great genetic impoverishment. For all the humanity and its future, particularly is important the maintenance and evaluation of old cultivar’s seeds. The research presented in this paper has been conducted on the territory of southwestern Fruska gora Mt. Of the collected samples of field and vegetables crops, as well as wild plants on the mountain, 13 accessions of snap bean and 21 accessions of dry bean have been analyzed in this paper. Seed color, seed shape, 1000-seed mass and phaseolin type was determined for all the accessions. Seeds of collected bean and snap bean accessions were predominantly white and cylindrical in shape. Mass of 1000 seeds ranged between 104,90 g and 634,96 g. T phaseolin type dominated, while S type of phaseolin was present in six bean and in two snap bean accessions. [Projekat Ministarstva nauke Republike Srbije, br. TR31030: Development of vegetable varieties and hybrids for field and indoor production and Project Provincial Secretariat for Science and Technological Development, Autonomous Province Vojvodina, Republic Serbia, number 114-451-3139/2011-01]