20.500.12556/RUL-117423 Velikost stalnih zob pri prebivalcih Slovenije – raziskava ekstrahiranih zob diplomsko delo The size of permanent teeth in the inhabitants of Slovenia – a study of extracted teeth diploma work Uvod: Poznavanje velikosti zob je pomembno za dentalno medicino, antropologijo in forenziko. Velikost zoba izrazijo meziodistalni premer (širina), bukolingvalni premer (debelina) in cervikoincizalni premer (dolžina) krone oz. korenine. Namen: Namen raziskave je bil določiti srednje vrednosti in mere variacije za premere stalnih zob pri prebivalcih Slovenije in preveriti naslednji hipotezi: i) povprečni zobni premeri se uvrščajo v razpone vrednosti za evropske narode in populacije evropskega porekla; ii) povprečni premeri levih in desnih zob se med seboj ne razlikujejo. Metode dela: Iz učne zbirke smo vzeli 949 ekstrahiranih stalnih zob ter zobne premere izmerili z digitalnim kljunastim merilom. Zobnih premerov, ki so jih spremenile bolezenske spremembe, zobozdravniški posegi, poškodbe in napredovala obraba nismo izmerili. Izračunali smo povprečje, mediano, standardni odklon, koeficient variacije in variacijski razmik. V literaturi smo poiskali podatke o velikosti zob pri drugih evropskih narodih in populacijah evropskega porekla. S testom t smo ugotavljali obstoj statistično značilnih razlik med povprečnimi premeri levih in desnih istoimenskih zob. Razliko smo obravnavali kot statistično značilno pri P ? 0,05. Rezultati: Povprečni premeri stalnih zob so bili v razponih vrednosti za evropske narode in populacije evropskega porekla.Z izjemo dolžine distobukalne korenine pri zgornjih šesticah ter dolžine distobukalne in palatinalne korenine pri zgornjih osmicah nismo ugotovili statistično značilnih razlik med premeri levih in desnih zob. Razprava in zaključek: Skladno s prvo hipotezo so povprečni premeri stalnih zob pri prebivalcih Slovenije primerljivi s tistimi iz literature za druge evropske narode in populacije evropskega porekla. Z drugo hipotezo se ne ujemajo ugotovljene levo-desne razlike glede dolžine korenin pri zgornjih kočnikih. Ugotovljena levo-desna nesomernost bi lahko bila povezana z delovanjem okoljskih dejavnikov, za katere je znano, da v večji meri vplivajo na razvoj zobne korenine kakor na razvoj zobne krone. Rezultate raziskave bi bilo smiselno vključiti v študijsko literaturo za bodoče zobotehnike in zobozdravnike. Introduction: Teeth diameters play an important role in dental medicine, anthropology and forensics. Tooth size is defined by mesiodistal diameter (width), buccolingual diameter (thickness) and cervicoincisal diameter (lenght) crown or root. Aims: The aim of this study was to determine measurements of central tendency and variability for the standard diameters of teeth crowns and roots in the inhabitants of Slovenia and to confirm the following hypotheses: i) Slovenian’s average teeth diameters classify in the same ranges as of those who are European nationals or have European origin; ii) average diameters of left and right homologous teeth do not have any differences. Methods: A total of 949 extracted permanent teeth were taken from the study collection and the following dimensions were measured using a digital sliding caliper: the largest mesiodistal and buccolingual crown diameter, crown length, mesiodistal and buccolingual root diameter at the cementoenamel junction and root length. Dental diameters altered by diseases, dental procedures, injuries and advanced wear were not measured. The mean, median, standard deviation, coefficient of variation and range of tooth diameters were calculated. In the literature we found information about teeth size of other European nationals and populations with European origin.The t test was applied to examine any statistically significant difference between the average diameters of the left and right homologous teeth. The level of significance was set at P ⡤ 0,05. Results: Average diameters of permanent teeth in Slovenia’s population do classify in the same ranges as of those who are European nationals or have European origin. Moreover, we did not find any typical statistical differences between left and right homologous teeth, except in the lengths of distobuccal roots at first upper molar and distobuccal and palatinal roots at third upper molar. Discussion and conclusion: In accordance with the first hypothesis, average diameters of permanent teeth in Slovenia’s population are comparable with those who are included in the literature which includes European nation’s or population’s with European origin teeth diameter measurments. With the second hypothesis there were some differences between left and right lengths of molar’s roots. Left and right differences asymmetry could be related to the influence of environmental factors, which affect more on growth of dental root than crown. It would be reasonable to include our results in the study literature for future dentists and dental technicians. diplomska dela laboratorijska zobna protetika velikost zob zobni premeri stalni zobje odontometrija anatomija zob Slovenija diploma theses laboratory dental prosthetics tooth size dental diameters permanent teeth odontometrics dental anatomy Slovenia true false false [J. Krobot] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2020-07-10 07:47:04 2020-07-10 07:47:12 2022-08-29 03:43:19 0000-00-00 00:00:00 2020 0 Ljubljana 0 43 str., [7] str. pril 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 97473 21933315 9618.pdf 9618.pdf 1 AF7B19A74419D4332A5ED440AB0952EA d0c1e8a85be8052d885df9c443db1be8e8090e133093e6670e009b3dbf1d4859 2da1c419-a1b9-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=131289 9619.pdf 9619.pdf 1 B28D9D975C090F9A7241F2277C8456E3 4483bad03b52b879eac6f09de619eb1f10b4d683519b7c9ec5e6e27a94fb32f5 2db2780f-a1b9-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=131290 Zdravstvena fakulteta 0 0 0