Naslov
Secular trend of earlier onset and decelerated development of third molars : evidence from Croatia

Autori
Sasso, Anja ; Legović, Mario ; Mady Maričić, Barbara ; Pavlić, Andrej ; Špalj, Stjepan

Izvornik
Forensic science international (0379-0738) 249C (2015); 202-206

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
third molars; secular trend; Croatia

Sažetak
The purpose of this study was to evaluate the influence of the secular trend on development of third molars in thirty years period in Littoral region of Croatia. A total of 1103 panoramic radiographs of subjects aged from 6 to 18 years were analysed. First group comprised 531 panoramic radiographs (258 girls) taken from year period 1977 till 1979 and second group 572 radiographs (325 girls) taken from year period 2007 till 2009. Demirjian`s method was used to determine the developmental stage of third molars. A secular trend in thirty years period was observed as earlier onset of third molars development in boys (6 months on average maxillary and 11 months mandibular) and girls (6 months for maxillary and 4 months for mandibular). Nowadays, an increase in mineralisation for one Demirjian stage occurs at a slower pace of 5.2 months in boys and 3.4 in girls in maxilla and 2.3 or 2 months in mandible for boys and girls, respectively. The study showed a secular trend present as earlier onset but decelerated development of third molars in both genders and both jaws.

Izvorni jezik
Engleski

Znanstvena područja
Dentalna medicina

Napomena
Potpora Sveučilišta u Rijeci 13.06.2.1.53.

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