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. 2025 Jul 27;14(15):5297.
doi: 10.3390/jcm14155297.

Effects of AMCOP® Elastodontic Devices on Skeletal Divergence and Airway Dimensions in Growing Patients

Gianna Dipalma  1 , Alessio Danilo Inchingolo  1 , Filippo Cardarelli  1 , Antonio Di Lorenzo  1 , Fabio Viapiano  1 , Laura Ferrante  1 , Francesco Inchingolo  1 , Daniela Di Venere  1 , Andrea Palermo  2 , Grazia Marinelli  1 , Angelo Michele Inchingolo  1
Affiliations

Effects of AMCOP® Elastodontic Devices on Skeletal Divergence and Airway Dimensions in Growing Patients

Gianna Dipalma et al. J Clin Med. .

Abstract

Objectives: This study aimed to evaluate the effects of AMCOP® elastodontic appliances on cephalometric parameters of skeletal divergence and upper airway dimensions in growing patients, comparing treated individuals with an untreated control group. Methods: A total of 60 subjects (30 treated with AMCOP® devices and 30 controls) were selected, with mean ages of 8.67 ± 1.3 and 9.19 ± 0.8 years, respectively. The AMCOP® appliances, designed for mixed dentition, were worn for 1 h during the day and throughout the night for 6-8 months. Cephalometric analyses were conducted at the beginning (T0) and end (T1) of treatment. Statistical analyses were performed using multivariable linear regression models to assess changes in skeletal and airway parameters, with significance set at p < 0.05. Results: Significant reductions were observed in Ans-Snp^Go-Gn (p = 0.0351), SN^Go-Gn (p = 0.0091), and FMA (p < 0.001) in the treated group compared to controls, indicating improved mandibular rotation. Upper airway spaces (SPAS, MAS, IAS) increased significantly, suggesting enhanced airway patency. Regression models confirmed the positive impact of AMCOP® therapy on skeletal and airway outcomes, particularly in subjects with pronounced vertical discrepancies. Conclusions: AMCOP® elastodontic devices effectively promote anterior mandibular rotation and reduce mandibular plane inclination in hyperdivergent patients, contributing to balanced craniofacial growth. The expansion of pharyngeal spaces indicates potential respiratory benefits. Future research is needed to confirm long-term stability and address variability in treatment response.

Keywords: airway space; craniofacial development; elastodontic therapy; functional appliances; interceptive therapy; oropharyngeal dimensions; orthodontic treatment; skeletal divergence; vertical growth control.

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Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
AMCOP® I Class appliance.
Figure 2
Figure 2
AMCOP® II Class appliance (SC).
Figure 3
Figure 3
AMCOP® Class III (TC) appliance.
Figure 4
Figure 4
AMCOP® OPEN appliance.
Figure 5
Figure 5
Summary diagram of AMCOP® elastodontic devices and clinical indications.
Figure 6
Figure 6
Changes of each parameter from T0 to T1.
See this image and copyright information in PMC

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