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Updated: Aug 5, 2026
Finite Element Analysis Model for Assessing Expansion Patterns from Surgically Assisted Rapid Palatal Expansion
Published on: October 20, 2023
Skeletal Effects After Miniscrew-Assisted Rapid Palatal Expansion on Sagittal and Vertical Dimensions: A Systematic
Bintao Xie1, Lingling Zhang2, Yanqin Lu3
1Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University & Hunan Engineering Research Center for Oral Digital Intelligence and Personalized Medicine & Hunan Key Laboratory of Oral Health Research, Changsha, China; Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University & Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.
Miniscrew-assisted rapid palatal expansion (MARPE) significantly impacts sagittal jaw structure but has a modest clinical effect. Vertical skeletal changes were not statistically significant, requiring further research for conclusive evidence.
Area of Science:
- Orthodontics
- Craniofacial Surgery
- Dental Research
Background:
- Miniscrew-assisted rapid palatal expansion (MARPE) is an orthodontic technique used to widen the palate.
- Its effects on the sagittal and vertical skeletal dimensions in late adolescents and adults require further clarification.
Purpose of the Study:
- To evaluate the skeletal impact of MARPE in both sagittal and vertical planes.
- To clarify the effects of MARPE on jaw structure in late adolescent and adult patients.
Main Methods:
- A systematic literature search was conducted across electronic databases.
- Eleven studies were included, with seven contributing to the meta-analysis.
- Data synthesis was performed using a random-effects model.
Main Results:
- MARPE demonstrated statistically significant increases in SNA (0.79°) and ANB (1.18°), indicating sagittal skeletal changes.
- Vertical dimensions, including SN-MP (1.28°) and MP-FH (1.09°), showed no statistically significant changes.
- No other substantial deviations were observed in the evaluated parameters.
Conclusions:
- MARPE treatment results in statistically significant but clinically modest sagittal skeletal changes.
- The impact on vertical dimensions remains inconclusive due to limited data.
- High-quality prospective longitudinal trials are needed to fully determine MARPE's vertical skeletal effects.