KOROZIJSKA SVOJSTVA METALA ZA ORTODONTSKE NAPRAVE

U ovom diplomskom radu ukratko je prepriĉana povijest ortodontskih naprava koja ukljuĉuje razne izmjene njenog dizajna i korištenih materijala. Nakon toga su opisani današnji aparatići. To ukljuĉuje glavnu podjelu na mobilne i fiksne, podjelu fiksnih aparatića prema materijalu izrade i poloţaju bravica na zubu te najnoviju inovaciju, prozirne Invisalign aparatiće koji ne sadrţe bravice. Osim toga, izdvojeni su metalni dijelovi aparatića kako bi se bolje dobio uvid u materijale koji se koriste. Karakteristike svake legure koja se koristi su kasnije detaljnije opisane, kao i svojstva i oblici korozije metala. U eksperimentalnom dijelu diplomskog rada testirana je legura Titan Grade 5 na elektrokemijsku koroziju iz ĉega su donešeni odreĊeni zakljuĉci.In this graduate thesis, the history of orthodontic devices has been briefly discussed, including various changes in its design and used materials. After that, today's braces are described. This includes the main division into mobile and fixed ones, the division of fixed braces based on used material and position of the brackets and the latest innovation, the transparent Invisalign braces that do not contain brackets. In addition, the metal parts of the braces have been separately described to gain insight into the used materials. The characteristics of each alloy are described in more detail later, as well as the properties and forms of metal corrosion. In the experimental part of the thesis, Titan Grade 5 alloy was tested for electrochemical corrosion, from which some conclusions were made