The 3D Tele Motion Tracking for the Orthodontic Facial Analysis

Abstract

Aim. This study aimed to evaluate the reliability of 3D-TMT, previously used only for dynamic testing, in a static cephalometric evaluation. Material and Method. A group of 40 patients (20 males and 20 females; mean age 14.2 ± 1.2 years; 12–18 years old) was included in the study. The measurements obtained by the 3D-TMT cephalometric analysis with a conventional frontal cephalometric analysis were compared for each subject. Nine passive markers reflectors were positioned on the face skin for the detection of the profile of the patient. Through the acquisition of these points, corresponding plans for three-dimensional posterior-anterior cephalometric analysis were found. Results. The cephalometric results carried out with 3D-TMT and with traditional posterior-anterior cephalometric analysis showed the 3D-TMT system values are slightly higher than the values measured on radiographs but statistically significant; nevertheless their correlation is very high. Conclusion. The recorded values obtained using the 3D-TMT analysis were correlated to cephalometric analysis, with small but statistically significant differences. The Dahlberg errors resulted to be always lower than the mean difference between the 2D and 3D measurements. A clinician should use, during the clinical monitoring of a patient, always the same method, to avoid comparing different millimeter magnitudes.

The relationship of tooth shade and skin tone and its influence on the smile attractiveness

“…Eyes, smile, and the mouth in general are the areas most associated with the attractiveness of the face . Smile is an important means of communications and facial expression.…”

Full-Digital Workflow for TMDs Management: A Case Series

“…In the present clinical cases, no radiographic monitoring of the condylar position was performed for the patients, different from clinical cases reported in the literature [ 24 ] in which a second CBCT was taken. In a recent study performed with CBCTs taken before and after treatment, it was observed that the changes in the dimension of anterior, superior, posterior, and medial joint spaces after the end of the treatment with a splint and physiotherapy in patients with TMD are often null [ 25 , 26 ]. Occlusal splint therapy with physiotherapy did not significantly change the dimension of joint spaces nor place the mandibular condyles into the centric relation.…”

Acceleration Techniques for Teeth Movements in Extractive Orthodontic Therapy

“…Therefore, the null hypothesis was confirmed, namely that there was no difference in the rate of orthodontic movement between passive self-ligating and conventional appliances in patients with low-frequency vibrations [44,73]. Another method described is the pulsed electromagnetic field (PEMF) used to reduce TT, as described in the study by Bhad (Patil) and Karemore (2022) [32].…”