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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
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.
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.
