Author(s):
1. Zorana Stamenković, Clinic of Orthodontics, School of Dentistry, University of Belgrade, Serbia
2. Nenad Nedeljković, Clinic of Orthodontics, School of Dentistry, University of Belgrade, Serbia
3. Vladan Mirjanić, Medicinski fakultet Banja Luka , Republic of Srpska, Bosnia and Herzegovina

Abstract:
AIM: In this investigation, the aim was to define frequency of missing third molar germs in a sample of 231 children (119 girls and 112 boys), 14 to 18 years old. The reason that was defined sample by this age was aspect of more authors who believes that 13 years of age is final time limit for genesis of third molar germs. MATERIAL and METHOD: Investigation was based on orthopanthomograph analysis of those patients and determination of third molar germs existence. RESULTS: 176 (76.2%) investigated were with all third molar germs, but 55 (23.8%) were with missing of this tooth. Missing of all 4 third molar germs were found in 13 (23.6%), missing of 3 third molar germs were found in 4 (7.3%), missing of 2 third molar germs were found in 19 (34.5%) and one missed third molar germ was found in 19 (34.5%) too. In the sample of 112 boys were found 27 (24.1%) with missing third molar germs, but most of them were with one missing: 10 (37%) investigated. In the sample of 119 girls were found 28 (23,5%) with missing third molar germs, but most of them were with two missing: 13 (46,4%) investigated. CONCLUSION: Missing third molar germs are relatively frequent phenomenon, mostly in the lower jaw.

Key words:
third molars,hypodontia,frequency

Thematic field:
SYMPOSIUM B - Biomaterials and nanomedicine

Date of abstract submission:
08.09.2020.

Conference:
Contemporary Materials 2020 - Savremeni materijali