Sažetak Uvod. Razvoj zuba usko je povezan sa pravilnim i neometanim telesnim i psihičkim razvojem deteta. Cilj. Utvrđivanje postojanja asimetrija u razvoju korena donjih stalnih očnjaka u različitim uzrastima dece oba pola. Materijal i metode. Istraživanje je obavljeno na ortopantomografskim snimcima 523 deteta (253 dečaka i 270 devojčica) uzrasta od 6 do 14 godina, ortodontskih pacijenata Klinike za stomatologiju u Nišu. Analizirana je asimetričnost u razvoju korena donjih stalnih očnjaka

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... om po Gleiser-u i Hunt-u, odnosno modifikacijom po Tijaniću (1981). Rezultati. Utvrđeno je da je asimetrija u razvoju korena donjih očnjaka kod oba pola prisutna kod 20 ispitanika (3,82%), kod 10 dečaka (3,95%) i 10 devojčica (3,70%). Razlika se kreće u granicama jednog stadijuma. Asimetričan razvoj korena donjih očnjaka kod devojčica i dečaka najčešće je prisutan u 7. i 8. stadijumu (kod devojčica 60%, a kod dečaka 50%). Kod 90% devojčica asimetrija u razvoju korena donjeg očnjaka prisutna je u okviru jednog stadijuma, a kod 10% devojčica prisutna je u okviru tri stadijuma. Asimetričan razvoj korena donjeg očnjaka najčešći je u 7. i 8. stadijumu razvoja (55%). Zaključak. Asimetričan razvoj korena donjeg stalnog očnjaka utvrđen je kod 3,82% ispitanika. Više od polovine ispitanika (55%) imalo je asimetričan razvoj korena očnjaka u stadijumu polovine i tri četvrtine ukupne dužine korena. Rezultati ove studije ukazuju da je očnjak zub sa veoma malo varijacija u svom razvoju. Ključne reči: donji očnjak, razvoj korena, mineralizacija, asimetrija Uvod Razvoj zuba je usko povezan sa pravilnim i neometanim telesnim i psihičkim razvojem deteta. Rast ljudskog organizma karakteriše se značajnom varijabilnošću, kako u stepenu rasta Abstract Introduction. The development of the teeth is closely associated with the proper and unobstructed physical and psychological development of the child. Aim. To determine the existence of asymmetry in the development of the roots of the lower permanent canine teeth in different age groups of children of both sexes. Material and methods. The study was conducted on 523 ortopantomograms (253 boys and 270 girls) of orthodontic patients aged 6 to 14 years of the Dental Clinic in Niš. We analyzed the development of asymmetry in the lower permanent canine root, using the method of Gleiser and Hunt, or the modification by Tijanić (1981) . Results. It was found that asymmetry in the development of the root in both sexes of the lower canine teeth was present in 20 patients (3.82%), 10 boys (3.95%) and 10 girls (3.70%). The difference is in the range of one stage. Asymmetric development of the roots of the lower incisors in girls and boys usually present in the 7 th and 8 th stages (60% in girls and in 50% in boys). In 90% of girls in developing asymmetry the root of the lower canine is present in a single stage, and in 10% of girls it presents within three stages. Asymmetric development of the root of the lower canine is the most common in the 7 th and 8 th stages of development (55%). Conclusion. Asymmetric root development of permanent lower canines was found in 3.82% of patients. More than half of respondents (55%) had asymmetrical canine root development stage in half and three quarters of the total root length. The results of this study indicate that the canine is the tooth with very little variations in its development.