(1) Background: The nature of the changes that contribute to Class II correction with functional appliances is still controversial. A broad variation in treatment responses has been reported. The purpose of this study was to find cephalometric predictors for individual patient responsiveness to twin-block treatment in patients with Class II Division 1 malocclusion; (2) Methods: The study was performed on a sample of 39 pubertal patients (21 females, 18 males) treated with the twin block appliance. Lateral cephalograms were available at the start of the treatment (T1) and at the end of functional therapy (T2). The outcome variable was the T2-T1 change in the sagittal position of the soft tissue pogonion with respect to the vertical line perpendicular to the Frankfort plane and passing through point subnasale. The predictive variables were age, gender at T1, and all the cephalometric parameters measured T1. Forward stepwise linear regression withpvalue to enter 0.05 andpvalue to leave 0.10 was applied; (3) Results: The only significant predictive variable that was selected was the Co-Go-Me angle (p= 0.000); (4) Conclusions: A greater advancement of the soft tissue chin on the profile is expected with smaller pretreatment values of Co-Go-Me angle.

Cretella Lombardo, E., Franchi, L., Gastaldi, G., Giuntini, V., Lione, R., Cozza, P., et al. (2020). Development of a Prediction Model for Short-Term Success of Functional Treatment of Class II Malocclusion. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 17(12), 1-7 [10.3390/ijerph17124473].

Development of a Prediction Model for Short-Term Success of Functional Treatment of Class II Malocclusion

Lione, Roberta;Cozza, Paola;Pavoni, Chiara
2020-06-22

Abstract

(1) Background: The nature of the changes that contribute to Class II correction with functional appliances is still controversial. A broad variation in treatment responses has been reported. The purpose of this study was to find cephalometric predictors for individual patient responsiveness to twin-block treatment in patients with Class II Division 1 malocclusion; (2) Methods: The study was performed on a sample of 39 pubertal patients (21 females, 18 males) treated with the twin block appliance. Lateral cephalograms were available at the start of the treatment (T1) and at the end of functional therapy (T2). The outcome variable was the T2-T1 change in the sagittal position of the soft tissue pogonion with respect to the vertical line perpendicular to the Frankfort plane and passing through point subnasale. The predictive variables were age, gender at T1, and all the cephalometric parameters measured T1. Forward stepwise linear regression withpvalue to enter 0.05 andpvalue to leave 0.10 was applied; (3) Results: The only significant predictive variable that was selected was the Co-Go-Me angle (p= 0.000); (4) Conclusions: A greater advancement of the soft tissue chin on the profile is expected with smaller pretreatment values of Co-Go-Me angle.
22-giu-2020
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore MED/28 - MALATTIE ODONTOSTOMATOLOGICHE
English
Class II malocclusion
cephalometric analysis
functional appliances
Cephalometry
Female
Forecasting
Humans
Male
Models, Theoretical
Treatment Outcome
Malocclusion, Angle Class II
Cretella Lombardo, E., Franchi, L., Gastaldi, G., Giuntini, V., Lione, R., Cozza, P., et al. (2020). Development of a Prediction Model for Short-Term Success of Functional Treatment of Class II Malocclusion. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 17(12), 1-7 [10.3390/ijerph17124473].
Cretella Lombardo, E; Franchi, L; Gastaldi, G; Giuntini, V; Lione, R; Cozza, P; Pavoni, C
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/257270
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