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  • Title: Sucking habits and facial hyperdivergency as risk factors for anterior open bite in the mixed dentition.
    Author: Cozza P, Baccetti T, Franchi L, Mucedero M, Polimeni A.
    Journal: Am J Orthod Dentofacial Orthop; 2005 Oct; 128(4):517-9. PubMed ID: 16214636.
    Abstract:
    INTRODUCTION: The aim of this study was to evaluate sucking habits and hyperdivergency as risk factors for anterior open bite in mixed-dentition subjects. METHODS: Anamnestic and pretreatment cephalometric records of 1710 mixed-dentition subjects were assessed for sucking habits, dental open bite, and facial hyperdivergency. RESULTS: The rate of anterior open bite was 17.7%. Multiple logistic regression showed that both prolonged sucking habits and hyperdivergent vertical relationships significantly increased the probability of an anterior dentoalveolar open bite, with a prevalence rate of 36.3%. This was 4 times the prevalence of sucking habits and facial hyperdivergency in subjects without anterior open bite (9.1%). CONCLUSIONS: Prolonged sucking habits and hyperdivergent facial characteristics are significant risk factors for anterior open bite in the mixed dentition.
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