Determination of forces on a split palatal screw after rapid maxillary expansion

Garcia, Valentin Javier; López-Cancelos, R.; Riveiro, A.; Comesaña, R.; Torrent, Josep Maria Ustrell i; Kasem, Khaled; Badaoui, A.; Manzanares-Céspedes, María Cristina; Carvalho-Lobato, Patricia

doi:10.1007/s00056-017-0091-3

Cited by 1 publication

(2 citation statements)

References 29 publications

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“…The RPE is still the most widely used appliance in facing this common feature of many malocclusions, but the scientific evidence about its mechanical behavior is still lacking. Indeed, despite the extensive number of articles investigating the clinical short- [63][64][65] and long-term [32,65] effects of RPE, the literature surrounding the amount of forces produced by this appliance is still limited [39,43,46,49,50,66].…”

Section: Discussionmentioning

confidence: 99%

“…Several studies investigated the biomechanical behavior of jackscrew appliances through finite elements analysis [39][40][41][42] or in both in vitro [39,[43][44][45] and in vivo settings [46][47][48][49][50]. However, the underlying biological processes behind maxillary skeletal expansion remain inadequately understood, and the clinical parameters for predicting expansion success are still lacking.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Mechanical Behavior of Clear Aligner and Rapid Palatal Expander on Transverse Plane: An In Vitro Study

Bruni,

Abate,

Maspero

et al. 2024

Bioengineering

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(1) Background: This study aims to investigate, within a controlled laboratory environment, the magnitude of the transversal load and the force decay over time produced by clear aligners in comparison to a Rapid Palatal Expander (RPE). (2) Methods: Resin models of a dental maxillary arch, additively manufactured from an intraoral scan, were inserted in a testing machine with uniaxial load cells to measure the force trend over time expressed by RPE and clear aligners. The mechanical load was recorded during a certain timeframe for both appliances. (3) Results: The force expressed by the RPE ranged from 30 to 50 N for each activation, decreasing with a nonlinear pattern over time. The force expressed by the clear aligner ranged from 3 to 5 N, decreasing with a linear pattern over time. In contrast, the force generated by the clear aligner fell within the range of 3 to 5 N, showing a linear reduction in force magnitude over the observed period of time. (4) Conclusions: The RPE exerted a force magnitude approximately ten times greater than that generated by clear aligners. Nevertheless, it is essential to acknowledge that the oral environment can significantly influence these results. These limitations underscore the need for caution when applying these findings to clinical settings.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of Mechanical Behavior of Clear Aligner and Rapid Palatal Expander on Transverse Plane: An In Vitro Study

Bruni,

Abate,

Maspero

et al. 2024

Bioengineering

View full text Add to dashboard Cite

show abstract

Determination of forces on a split palatal screw after rapid maxillary expansion

Abstract: These results back the finite element analysis model for force prediction.

Cited by 1 publication

References 29 publications

Comparison of Mechanical Behavior of Clear Aligner and Rapid Palatal Expander on Transverse Plane: An In Vitro Study

Comparison of Mechanical Behavior of Clear Aligner and Rapid Palatal Expander on Transverse Plane: An In Vitro Study

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