Third molar development between ages 8 and 13 years

Published: 28 March 2019| Version 1 | DOI: 10.17632/fp7ky46yz3.1
Denver Marchiori, Julia Boughner, Garnet Packota


The model presented here has been fit to predict third molar development based on the mesiodistal length of the jaw space distal to the first permanent molar, while also controlling for age and jaw. Therefore, both upper and lower third molars are taken into account here. Sex was also a variable of interest in this investigation but, giving its lack of contribution for significantly predicting third molar development in our pilot tests, it was not kept in this final model. This model is the result of a study where 689 third molar regions were investigated on cone-beam computed tomography (CBCT) images of 179 Canadian children and adolescents aged 8.00 to 13.99 years.



University of Saskatchewan


Dentistry, Tooth, Impacted Teeth, Tooth Development, Bone Growth