Biomechanics of conventional and miniscrew-assisted rapid palatal expansion

Shivam Mehta; Sarah Abu Arqub; Meenakshi Vishwanath; Madhur Upadhyay; Sumit Yadav

doi:10.1016/j.ejwf.2024.03.002

Biomechanics of conventional and miniscrew-assisted rapid palatal expansion

J World Fed Orthod. 2024 May 1:S2212-4438(24)00015-8. doi: 10.1016/j.ejwf.2024.03.002. Online ahead of print.

Authors

Shivam Mehta¹, Sarah Abu Arqub², Meenakshi Vishwanath³, Madhur Upadhyay⁴, Sumit Yadav⁵

Affiliations

¹ Department of Orthodontics, Texas A&M University School of Dentistry, Dallas, Texas.
² Division of Orthodontics, University of Florida Health, Gainesville, Florida.
³ Program Director, Orthodontic Section, Department of Growth and Development, UNMC College of Dentistry, Lincoln, Nebraska.
⁴ Division of Orthodontics, Program Director, Orthodontic Fellowship Program, University of Connecticut Health, Farmington, Connecticut.
⁵ Henry and Anne Cech Professor of Orthodontics, UNMC College of Dentistry and Children's Hospital and Medical Center, Lincoln, Nebraska. Electronic address: syadav@unmc.edu.

PMID: 38697910
DOI: 10.1016/j.ejwf.2024.03.002

Abstract

Posterior Crossbite is a common condition resulting because of transverse maxillary deficiency. The growth of the craniofacial complex finishes first in the transverse dimension, followed by sagittal and vertical dimensions. Conventional rapid palatal expansion (RPE) appliances are commonly used to correct transverse maxillary deficiency. Although RPE is efficient in correcting posterior crossbite, it results in dental side effects such as buccal tipping of maxillary molars, root resorption, bone dehiscence, and relapse. Mini-implant-assisted RPE has been introduced to increase the skeletal effects of expansion especially in patients with increased maturation and greater interdigitation of midpalatal suture. This article will review the biomechanics of RPE and mini-implant-assisted RPE. Additionally, the different designs of MARPE and the long-term clinical effects of expansion appliances will also be discussed in detail.

Keywords: Biomechanics; Bone-anchored expansion; MARPE; Palatal expansion technique; RPE.

Publication types

Review