ArticleInternational dental journal2026
Efficiency of Cone-Beam Computed Tomography-Based Personalized Microimplant-Assisted Rapid Palatal Expansion in Patients With Maxillary Transverse Deficiency and Thin Palatal Bone.
Article in International dental journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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5 authors.
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Abstract
INTRODUCTION AND
aimsMaxillary transverse deficiency (MTD) affects approximately 10% of adults, but conventional expansion treatments are often ineffective and risky in mature patients due to suture fusion. Although microimplant-assisted rapid palatal expansion (MARPE) improves outcomes, it relies on sufficient bone thickness, posing a challenge for individuals with thin palatal bone. This study evaluates a digitally personalized MARPE approach, guided by cone-beam computed tomography-based bone mapping, for adults with MTD and thin bone (<2.5 mm).
methodsA retrospective analysis was conducted on 18 patients. Custom MARPE appliances were designed using computer-aided design/computer-aided manufacturing technology, with microimplants placed strategically using surgical guides. Skeletal, dental, and zygomatic changes were assessed via pre- and postexpansion cone-beam computed tomography and cephalograms.
resultsAll patients were successfully treated without implant failure. Significant skeletal expansion was achieved: anterior nasal spine width increased by 5.19 mm, posterior nasal spine by 4.49 mm, and maxillary basal width by 4.05 mm (all P < .01). Dental side effects were minimal. Significant three-dimensional remodelling of the zygomaticomaxillary complex was observed, along with sagittal improvements in SNA and ANB angles (0.57° and 1.54°, respectively) and increased anterior facial height (2.00 mm, P < .01). All measurements showed high reliability (intraclass correlation coefficient >0.90).
conclusionPersonalized MARPE demonstrated promising results for MTD in patients with thin palatal bone, providing significant skeletal expansion with minimal adverse dental effects. CLINICAL RELEVANCE: This study provides evidence that a digitally personalized MARPE protocol, guided by CBCT, is a feasible and well-tolerated treatment approach for adults with maxillary transverse deficiency and critically thin palatal bone. It provides significant skeletal expansion with minimal dental side effects, offering a viable solution for a patient population that has limited and high-risk treatment options.
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