27th Balkan Stomatological society, İstanbul, Türkiye, 9 - 11 Kasım 2023, ss.81
Abstract
Objective
The present study investigates the
effectiveness of Invisalign (Align Technology, San Jose, Calif) in rotational
tooth movement. The aim of this research is to assess the accuracy of the
predicted rotational movements in the digital treatment plan (Clincheck, Align
Technology, San Jose, CA) compared to the actual achieved results following
treatment completion.
Material and Methods
A retrospective analysis was conducted on a
cohort of orthodontic patients who underwent clear aligner therapy for
rotational tooth movements. Digital treatment plans and 3D models were used to
predict the anticipated degree of rotation for each tooth. Post treatment, the
achieved, rotational movements were measured in the same way and assessed
quantitively.
Results
Preliminary findings
revealed a significant correlation between the predicted rotational movements
and the actual outcomes. The variations were observed among different tooth
types and degree of rotation, which were influenced by the complexity of the
rotations and the type of teeth involved. Teeth with mild to moderate rotations
demonstrated higher accuracy rates in alignment with the digital treatment
plan, while more complex rotations exhibited slight discrepancies. The most
accomplished tooth movement was found with 80 % accuracy in lower central
incisors, 74.29 % accuracy in lower laterals, 71.43 % accuracy in upper central
incisors and lower second premolars whereas the least accuracy was found with
28 % in lower canines.
Conclusion
These results reveals the potential of
Invisalign orthodontic treatment to accurately predict and achieve rotational
movements. The study emphazises the importance of precise treatment planning
and patient selection for optimal outcomes. Further research is warranted to
explore factors contributing to the variations observed and to refine treatment
protocols to enhance the accuracy of rotational tooth movements with
Invisalign.
Keywords: Clear aligner
therapy, Rotation, Effectiveness