Estudo comparativo entre traçados cefalométricos manual e digital, através do programa Dolphin Imaging em telerradiografias laterais

Abstract

Objective: The purpose of this study was to compare angular and linear cephalometric measurements obtained through manual and digital cephalometric tracings using Dolphin Imaging ® 11.0 software with lateral cephalometric radiographs. Methods: The sample consisted of 50 lateral cephalometric radiographs. One properly calibrated examiner performed 50 manual and 50 digital cephalometric tracings using eight angular measurements (FMA, IMPA, SNA, SNB, ANB, 1.NA, 1.NB, Y-Axis) and six linear measurements (1-NA, 1-NB, Co-Gn, Co-A, E Line-Lower lip and LAFH). Results were assessed using Student's t-test. Results: The results showed no statistically significant differences in any of the assessed measurements (p> 0.05). Conclusions: Conventional and computerized methods showed consistency in all angular and linear measurements. The computer program Dolphin Imaging ® 11.0 can be used reliably as an aid in diagnosing, planning, monitoring and evaluating orthodontic treatment both in clinical and research settings. Abstract Keywords: Cephalometry. Orthodontics. Computerized diagnosis.

Ceph-X: development and evaluation of 2D cephalometric system

“…This findings is supported by study perfomed by Paixão et.al [36] which compares between manual and automatic process using Dolphin imaging software on 50 subjects (male and female). The study did not show any significance difference between manual and automatic process [36]. Similar findings have been reported by Tikku et al using 13 linear and 13 angular measurements on 40 subjects, where only 6 among 13 measurements were significant [37].…”

“…Recent study showed that current cephalometric measurements obtained with the computerized cephalometric systems can be considered reliable, and can be used by the clinician [33, 36, 37]. This findings is supported by study perfomed by Paixão et.al [36] which compares between manual and automatic process using Dolphin imaging software on 50 subjects (male and female). The study did not show any significance difference between manual and automatic process [36].…”

“…The 30 radiograph samples were obtained with ethical approval from patient archives in the department of orthodontics, University Malaya Hospital. The number of samples used with this study is nearly optimal if compared with similar studies where the differences between the number of samples are around 10–20 samples [36, 37]. Hence the study is retrospective; we hide the patient information to assure the confidentiality, and privacy of patients.…”

“…Unfortunately, no research on automatic landmark location archives the previous value [35]. Recent study showed that current cephalometric measurements obtained with the computerized cephalometric systems can be considered reliable, and can be used by the clinician [33, 36, 37]. This findings is supported by study perfomed by Paixão et.al [36] which compares between manual and automatic process using Dolphin imaging software on 50 subjects (male and female).…”

Cephalometry: is it just an orthodontic record?

“…But obviously it was also limited in use as it overlooked the soft tissue thickness variations and longitudinal studies were also impossible. Pacini was the first to attempt standardization in radiography of head in 1922 and then Broadbent in USA and Hofrath in Germany announced their methods of radiography (CM) of skull simultaneously 2 . CM combined the advantages of anthropometry and craniometry, which made it possible to measure craniofacial hard tissues as well as soft tissues.…”