ArticleProgress in orthodontics2018
Facemask performance during maxillary protraction: a finite element analysis (FEA) evaluation of load and stress distribution on Delaire facemask.
Article in Progress in orthodontics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.
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Who cites it
9 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Stress and displacement patterns during orthodontic intervention in the maxilla of patients with cleft palate analyzed by finite element analysis: a systematic review.BMC oral health · 2023Pooled it
- Evaluating the Predictive Potential of Patient-Specific Biomechanical Models in Class III Protraction Therapy.Bioengineering (Basel, Switzerland) · 2025Article
- Evaluation of Load and Stress Distribution for a Novel Design of Maxillary Protraction Facemask by Finite Element Analysis.Journal of clinical medicine · 2025Article
- Comparative Analysis of Early Class III Malocclusion Treatments-A Systematic Review and Meta-Analysis.Children (Basel, Switzerland) · 2025Review
- Soft-tissue modification in Class III non-growing patients treated with clear aligners: a prospective clinical trial.Frontiers in dental medicine · 2025Article
- Efficacy of SAVE: A Novel Maxillary Protraction Device-A Finite Element Analysis.International journal of clinical pediatric dentistry · 2024Article
- Effects of aligner activation and power arm length and material on canine displacement and periodontal ligament stress: a finite element analysis.Progress in orthodontics · 2023Article
- Effectiveness of the attachment position in molar intrusion with clear aligners: a finite element study.BMC oral health · 2022Article
- Stress on facial skin of class III subjects during maxillary protraction: a finite element analysis.BMC oral health · 2019Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTo evaluate load and stress distribution on Delaire facemask (FM) during maxillary protraction in class III growing patients by means of finite element analysis (FEA). A three-dimensional geometry of a Delaire FM was reconstructed from the original CAD 3D prototype, using software package (ANSYS 5.7). FM presented forehead and chin supports and stainless steel framework characterized by two lateral vertical bars connected to a crossbar with two pawls for elastic attachment. Two traction intensities (7.8 and 9.8 N) were applied on the FM pawls along three different downward inclined directions with respect to the occlusal plane (0°, 30°, or 50°, respectively). Resulting stresses and deformations were then tested through the von Mises yield criterion in order to underline the FM wear performance.
resultsThe analysis showed that higher stresses and deformations are mostly related to axial forces of 9.8 N rather than 7.8 N. Stresses also progressively increased with increasing downward force inclinations (0°, 30°, and 50° with respect to the occlusal plane). The overall tensions were inferior to the limit of the elastic behavior (yield point) characterizing the material they are applied on. Thus, the FM structure absorbed the load applied with an elastic deformation of the lateral and horizontal bars.
conclusionsResulting stresses and deformations were directly proportional to protraction load amounts and to increasing downward inclination of forces. In all tested conditions, protraction forces were not able to determine plastic deformation on FM structure compromising its performance and efficiency.
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