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Upper Midline Correction Using the Mesial-Distalslider.

Maria Elena De Felice¹, Silvia Caruso¹, Maximilian Kueffer²

¹Department of Life, Health and Environmental Sciences, University of L'Aquila, Piazzale Salvatore Tommasi 1, 67100 L'Aquila, Italy.

Bioengineering (Basel, Switzerland)

|May 25, 2024

Summary

This summary is machine-generated.

The Mesial-Distalslider appliance effectively corrects upper midline deviation by enabling asymmetric molar movements without significant anchorage loss. This orthodontic tool facilitates controlled mesialization and distalization for improved dental alignment.

Keywords:

dento-alveolar asymmetries model superimpositions skeletal anchorage temporary anchorage devices upper midline deviation

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Area of Science:

Orthodontics
Dental Biomechanics

Background:

Upper midline deviation is a common orthodontic concern.
Correction often requires precise control of tooth movement.
Asymmetric mechanics can be challenging to implement effectively.

Purpose of the Study:

To perform a three-dimensional (3D) analysis of molar and incisor movements.
To evaluate the efficacy of the Mesial-Distalslider appliance in correcting upper midline deviation.
To assess the nature and extent of tooth movements during treatment.

Main Methods:

A retrospective study of 20 patients treated with the Mesial-Distalslider appliance.
Asymmetric mechanics involving mesialization and distalization were employed.
3D digitization of dental casts before and after treatment (T0 and T1) for analysis.

Main Results:

Significant anteroposterior molar movement was observed: 4.5 ± 2.2 mm (mesialization) and -2.4 ± 1.7 mm (distalization).
Transverse and vertical molar movements were minimal, indicating controlled mechanics.
Incisor displacement was limited, with 0.9 mm ± 1.7 on the mesialization side and 0.6 mm ± 0.7 on the distalization side.

Conclusions:

The Mesial-Distalslider is a valuable appliance for orthodontic treatment of upper midline deviation.
Asymmetric molar movements are achievable with this appliance.
Clinically relevant anchorage loss was not observed in this retrospective analysis.