Новий тривимірний цефалометричний аналіз на основі CBCT сканування середнього поля зору: встановлення нормальних значень для дітей 7-12 років.

Abstract

Objective of the research was to determine mean cephalometric parameters among children aged 7-12 years old with the use of originally developed three-dimensional analysis of medium field of view CBCT images and verify sustainability of obtained indicators as references of normality values. Present research was conducted in the form of retrospective designed study, all CBCT data used for the research was already presented within the database of Central Laboratory Diagnosis of the Head (Kyiv, Ukraine). Final sample of 25 DICOM datasets was converted and analyzed using the SIMPLANT O&O software. Algorithm of originally developed Dakhno-Vyshemyrska-Burlakov (DVB) cephalometric analysis realized for the obtained 3D scans included marking of 33 skeletal and dental landmark points (11 single and 11 paired/ bilateral). Out of 25 CBCT scans, included into study group, 10 were obtained from male pediatric patients, and 15 from female. Mean age of patients at the time of CBCT scan obtainment was 9.46±2.31 years. The differences between each parameter registered among male and female persons were not statistically approved (p > 0.05), except for the linear parameters of jaws and parameters of growth pattern prediction. Adjusted intra-rater agreement for the set of calculated cephalometric parameters after triple repeated assessment for the Investigator 1 was 0.95 and for the Investigator 2 – 0.97, while pooled inter-rater agreement reached level of 0.92. Proposed 3D cephalometric analysis based on medium FOV CBCT scans may be effectively used for the pediatric patients aged 7-12 years old, and such diagnostic approach fully corresponds with the generally accepted recommendations for effective doze minimization among orthodontic pediatric patients. Skeletal and dental cephalometric parameters were established for children 7-12 years old based on 25 CBCT data sets, which considering repeatability of obtained results registered by the two independent investigators, may be categorized as a reference set of normality values. Clinical article (J Int Dent Med Res 2023; 16(4): 1687-1700)