Changes in the Shape of the DentalArch after Orthodontic Treatment – Longitudinal Study

Overview

The objective of the work was to evaluate changes in the shape of the dental archafter treatment with fixed and removable devices without extraction. Statistical analysis ofthe dimensions and shape of the dental arch was implemented before the onset and aftertermination of orthodontic treatment and during a check-up examination after an interval of3–5 years. The plaster models of dental arches obtained by means of a scanner on the computerscreen were processed by digitalization within the framework of thr Kefalo programme.Segmental analysis was made, dental discrepancy in the dental arch values of Bolton’s indexwere assessed and an ideal occlusion curve in the frontal and premolar section of the mandiblewas suggested. The presented paper is based on a study by the authors where the shape anddimensions of the upper and lower dental arch of a selected sample of the junior adultpopulation was evaluated [1].

Key words:
treatment with fixed and removable devices – dental arch – occlusion curve