Article: Volume 13 Number 1 Page 30 - January 2020

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  Orth Update 2020; 13: 30-32

Orthodontics:  Case Report of a Geminated Premolar and Hypodontia

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Abstract: This case report describes the diagnosis and treatment of a non-syndromic unilateral geminated second premolar complicated by hypodontia of three second premolars. Gemination is defined as a developmental disturbance of the shape of teeth and is usually recognized as a partial cleavage of a single tooth germ resulting in one root and one pulp space with two partially or totally separated crowns. Hypodontia is defined as the developmental absence of one or more teeth, excluding the third molars. Geminations of maxillary second premolars are rarely reported. These dental anomalies can cause local malocclusion manifesting as crowding or spacing.

Clinical relevance: Diagnosis of dental anomalies such as gemination can be difficult. This paper discusses the diagnosis and management of one such case which involved CBCT.

Author notes: Paula Sinnott, BDS(NUI), MFDS(Ed), MClinDent, Orthodontic Registrar, University College London Hospitals NHS Foundation Trust, Sunil Sah, MBBS(Lond), BDS, MFDS, MRCS RCSEd, MSc(Oncol), FRCS(OMFS), Consultant Oral and Maxillofacial Surgeon and Chris Barker, DDS, BChD, MFDS RCS(Ed), MOrth RCS(Ed), FDS(Orth) RCS(Eng), Consultant Orthodontist, Oral and Facial Department, Mid Yorkshire Hospitals NHS Trust, Pinderfields General Hospital, Aberford Road, Wakefield, WF1 4DG, UK.

Objective: To understand the diagnosis and management of gemination and hypodontia.