No significant difference in the degree of root resorption between the two groups was found.
The degree of root branching impacts the efficiency of water uptake, acquisition of nutrients and anchorage by plants.
In the present study, extractive orthodontic treatment appeared to predispose patients to a greater degree of root resorption.
Recently, Chung et al. reported that proximity of maxillary incisal roots to the incisive canal might influence the degree of root resorption after large incisal retraction [27].
Moreover, compared with roots under normal conditions, the restriction degree of root length in the diploid was much stronger than that in the tetraploid.
Given the predicted increasing fluctuations in rice-growing climates, genotypes exhibiting a high degree of root growth plasticity will likely increase in importance (Kano et al. [2011]).
To determine the degree of root resorption, different approaches have been employed, being linear measurements, scoring of horizontal root resorption degree, or using scales to describe mesial, distal, buccal, and lingual resorptions [18, 20].
Thus, the model adds to the branching process model: (1) the distribution of segment length l, (2) the correlation between λ and the degree of the root, and (3) the correlation between the degree of root and the the degree of the end node of segments.
The weak association between treatment variables and patient characteristics with the degree of root resorption suggests that increased expression of pro-inflammatory, as well as anti-inflammatory cytokines, may be determinants in the development of moderate to severe OIIRR.
