Received by the Editorial Office: 11.06.2026
Accepted for publication: 19.06.2026
Published online: 30.06.2026
UDC: 616.314-007.2-089.23-053.8
DOI: 10.70113/1815-9443.2026.15.56.004
CLINICAL SIGNIFICANCE OF BIOMETRIC INDICATORS IN DENTAL ARCH DEFORMITIES IN ADULTS
Dosberdiyeva G.T., Oydash N.K.
NJSC “S.D. Asfendiyarov Kazakh National Medical University”, Almaty, Kazakhstan
Introduction. Dental arch deformities in adult patients require a comprehensive diagnostic approach. Biometric measurements allow an objective assessment of the anatomical and functional characteristics of the dentofacial system; in recent studies these indicators are effectively determined using digital measurements and quantitative 3D models [1–3].
Objective. To characterise dental arch deformities in adult patients on the basis of objective biometric indicators and to assess their clinical significance in orthodontic treatment planning.
Materials and Methods. This single-centre prospective descriptive study enrolled 10 adult patients (18–44 years) meeting predefined inclusion and exclusion criteria. Diagnostics were performed on plaster and digital 3D models; intercanine width, intermolar width, dental arch form and the Bolton ratio were determined. Method error was assessed using the Dahlberg formula and the intraclass correlation coefficient (ICC).
Results. A high proportion of narrow arches was recorded (narrow tapered ≈50%, narrow ovoid ≈34%). Anterior Bolton discrepancies were found in approximately 44% of cases and overall discrepancies in approximately 25%. Mean intercanine and intermolar widths were higher in males. Given the small sample size, the results are presented in a descriptive format.
Conclusion. Biometric parameters are a useful tool for diagnosing dental arch deformities in adults and for individualising orthodontic treatment. Larger controlled studies are required to confirm these findings [1–3].
Keywords: dental arch, biometric measurements, Bolton ratio, orthodontics, adults, digital 3D model.
