Comparing Two Types of Expanders for Molar Movement in Children
Author Information
Author(s): Andrea Abate, Alessandro Ugolini, Bruni Alessandro, Vincenzo Quinzi, Valentina Lanteri
Primary Institution: University of Genova, University of Modena and Reggio Emilia, University of L'Aquila
Hypothesis
Does the Leaf Expander® induce greater spontaneous distorotation of upper first molars compared to the rapid maxillary expander (RME)?
Conclusion
The Leaf Expander® leads to significantly greater molar distorotation compared to RME, especially in cases of posterior cross-bite.
Supporting Evidence
- The Leaf Expander® showed a significant increase in molar distorotation compared to RME.
- Both devices effectively modified the upper dental arch dimensions.
- Patients with posterior cross-bite benefited more from the Leaf Expander®.
Takeaway
This study shows that using a special device called the Leaf Expander can help move back teeth more effectively than a traditional expander, especially in kids with certain bite issues.
Methodology
A two-arm, parallel-assignment randomized controlled trial conducted at two teaching hospitals in Italy, comparing the effects of the Leaf Expander® and RME on upper first molar distorotation.
Potential Biases
Potential bias in blinding due to the nature of the devices used.
Limitations
No follow-up observations after appliance removal; further research needed to evaluate long-term stability of results.
Participant Demographics
150 patients aged 6-10 years, with a mix of males and females, all in prepubertal development stage.
Statistical Information
P-Value
p=0.014
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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