Title: 0266 - Simulation of Orthodontic Treatment Using Anatomage and Align Software in Individuals With Osteogenesis Imperfecta


jean marc retrouvey (Presenter)
mcgill university


Objectives: 1. Describe the procedure allowing for merging two digital data sets from cone beam computed tomography (CBCT) and intraoral scanner in patients with osteogenesis imperfecta (OI).
2. Create digital study models with individually segmented teeth using the Track software (Invisalign).
3. Quantify the dental and skeletal linear and angular movements necessary to correct the malocclusion.
4. Virtually plan orthodontic and surgical treatment.

Methods: CBCT and intraoral scans of an 18-year-old man with OI type IV were performed. The DICOM data from CBCT and STL files from intraoral scanner were merged with Anatomage software that created a 3D volume of the craniofacial features of the patient. Align software was then used to quantify and simulate orthodontic treatment.
3D cephalometric analysis and dentoalveolar measurements were performed using Anatomage and Align software.
2. Simulation of the movements necessary to correct the malocclusion was performed, and the measurements were recorded (Table 1).

Results: 3D cephalometric analysis revealed a severe Class III malocclusion with lateral open bite and hypoplastic maxilla. Extreme proclination of lower incisors was also noted. Dentoalveolar anomalies such as impacted and missing teeth were recorded.

Conclusions: Merging the digital information from intraoral scanners with CBCT data within the software enhances the accuracy of the treatment plan and allows for treatment quantification and simulation. The 3D volume rendering associated with the software capacity to quantify the necessary movements significantly contributed to the establishment of an optimized treatment plan and to the correct biomechanical force application.


Download Image 1


Angular and linear measurements in the lower arch 43 42 41 31 32 33
extrusion-Intrusion 0.7 I 0.9 I 1.4 I 1.2 I 0,4 I 0.2 E
Translation Buccal-Lingual 2.6 L 4.7 L 5.6 L 5.4 L 4.4 L 1.4 L
Translation Mesial-Distal (mm) 3.7 D 1.9 D 1.4 D 2.2 M 1.3 M 1.3 M
Rotation Mesial-Distal (degrees) 23.1 M 2.9 D 1.9 D 5.4 M 1.6 D 1.6 D
Angulation Mesial-Distal (degrees) 5.5 D 2.8 D 2.6 D 7.4 M 2.8 M 2.8 M
Inclination Buccal Lingual ( degrees) 7.5 L 22.5 L 22.5 L 30.1 L 21.8 L 28.1 L

This abstract is based on research that was funded entirely or partially by an outside source:

Disclosure Statement:
The submitter must disclose the names of the organizations with which any author have a relationship, the nature of the relationship, and the clinical or research area involved. The following is submitted: NICDR McGill University

Group Authors: brittle bone disease consortium