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The acquired anterior open bite: possible aetiologies and management strategies

From Volume 50, Issue 1, January 2023 | Pages 19-27

Authors

James Chesterman

Restorative Department, Leeds Dental Institute, The Leeds Teaching Hospitals NHS Trust, Leeds, UK

Articles by James Chesterman

David Gray

Associate Dentist, The Broadway Dental Practice, Catford, London, SE6 4SN and Specialty Doctor in Prosthodontics, Eastman Dental Hospital, 47-49 Huntley Street, London WC1E 6DG, UK

Articles by David Gray

Christopher Mannion

Consultant in Oral and Maxillofacial Surgery

Articles by Christopher Mannion

Hannah Beddis

Specialty Registrar in Restorative Dentistry, Leeds Dental Institute, Leeds, UK

Articles by Hannah Beddis

Abstract

An anterior open bite (AOB) is present when there is no vertical overlap between the upper and lower incisors when the buccal segment teeth are in occlusion, and most commonly develops during childhood. This article presents a series of cases in which an AOB has developed in adulthood, together with a discussion of potential aetiological factors and management strategies.

CPD/Clinical Relevance: A review of the potential causes, presentation and management of the anterior open bite, applicable to clinicians in primary and secondary care

Article

An anterior open bite (AOB) is a malocclusion that occurs when there is no vertical overlap between the upper and lower incisors when the buccal segment teeth are in occlusion.1 The incidence of AOB in the population varies according to age and ethnic group. Development of an AOB is most commonly observed during childhood, with a reported prevalence of 17.7% of children in the mixed dentition.2,3 In children and adolescents an AOB may develop due to the underlying skeletal pattern and mandibular growth patterns, dento-alveolar growth deficiency or behavioural habits such as digit sucking or tongue thrusting.4 When associated with sucking habits, prevalence increases to 36.3%.2 The development of an AOB is multifactorial and may be associated with conditions such as muscular dystrophy,5 macroglossia and amelogenesis imperfecta.6 The prevalence of an AOB in adults is 4%, with an increased incidence in African and Afro-Caribbean populations (5–10%).4

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