Comparative study between cone-beam and digital lateral head film cephalometric measurements

Resumen

Objective: The objective of the present study was to determine the differences between cephalometric measurements obtained by two different methods: cone-beam tomography and digital lateral head film. Material and methods: Measurements were performed (anterior facial height, mandibular length, upper incisor to the A-Pog line, lower incisor to the A-Pog line, ANS-PNS, ANB angle) on 30 patients by means of lateral digital radiography and cone-beam. The statistic test used was the t-Student. Results: The measurement that presented a statistically significant difference was the mandibular length (p = 0.001). Conclusion: Measurements performed in cone-beam scans for a 3D cephalometric analysis did not show evidence of being more effective or reliable in comparison with measurements performed in 2D.

Key words: Cone-beam, lateral head film, cephalometry, reliability.