Invisalign Treatment: Analysis of Perimeter and Depth Modifications on Teeth Arches

(Pages: 8-13)

Lucchese Alessandra1,2, Luis Huanca Ghislanzoni1, Marcolina Marta1, Varisco Margherita1, Croce Silvia1 and Manuelli Maurizio1

1Department of Orthodontics, Vita-Salute San Raffaele University, Milan, Italy and 2Unit of Dentistry, Division of Orthodontics, Research area in Dentofacial Orthopedics and Orthodontics, IRCCS San Raffaele Scientific Institute, Milan, Italy


Abstract: Background: The request from patients for treatment with clear aligners is constantly increasing. The aligners can offer to the clinicians a way to solve a lot of malocclusions but the patients’ compliance and the clinicians’ capabilities and knowledge of the technique plays a key role. For this reason is fundamental to investigate all the changes that happen during a treatment with clear aligners.

Methods: To evaluate the modifications from t0 (beginning of treatment) to t1 (end of treatment).

Results: The arch depth and the arch perimeter decrease from t0 to t1 and the most relevant difference was observed in the upper arch depth with a decrease of 1,3mm and in the upper arch perimeter with a difference of 1,1mm.

Conclusions: At the end of a treatment with clear aligners there is always a decrease of the values of arch depth and arch perimeter. In the upper arch the differences are higher. It is necessary that the clinician consider these changes to perform a better treatment to obtain the most predictable results and higher satisfaction for the patients.

Keywords: Aligners, Invisalign, Arch depth, Arch perimeter.