Objectives: Odontogenic tumours (ODTs) are a heterogeneous group of lesions derived from elements of the tooth-forming tissues. There are no published detailed data on the incidence of odontogenic tumours in the UK. Aim: to retrospectively describe the range and incidence of odontogenic tumours from 1992-2016 in a single specialist unit and to compare this with other populations. Study Design: Using the Oral and Maxillofacial Pathology database, Sheffield, both local and referred consultation cases were included. A proportion of diagnoses were re-classified in accordance with the 2017 WHO classification. Results: In total, 559 odontogenic tumours were diagnosed. Overall, the most common lesions were ameloblastoma (196; 33.8%), odontome (148; 25.5%) and odontogenic myxoma (37; 6.3%), but this varied between local and referral case populations, with odontomes most common in the local population (43%). The sites affected, gender and age of patients were similar to other western populations. Malignant ODTs comprised 33 cases (5.7%), of which nine (27.3%) were ameloblastic carcinoma. The majority of the malignant ODTs were referral cases. Conclusions: These are the first detailed data on odontogenic tumours within a UK population and the pattern of incidence from the local population is similar to other western populations. The exceptional rarity of malignant ODTs emphasises the need for specialist centres in order to gain diagnostic experience.
Lesions of the gingivae are amongst the commonest lesions seen in patients and the vast majority are reactive hyperplasias, related to a number of chronic irritant stimuli. However, there are a number of entities that have a predilection for the gingivae, which are much less common in other parts of the oral cavity. The purpose of this paper is to discuss the clinical and histological differential diagnoses when presented with a lump on the gingivae, including the approach to diagnosis and diagnostic pitfalls.
Dental students in the United Kingdom usually study histopathology as part of their undergraduate curriculum and this has traditionally been delivered using light microscopes in laboratory classes. Beginning in 2005, the oral pathology course in Sheffield was gradually modified by the introduction of virtual microscopy with a focus on creating a more integrated, clinically orientated and dynamic approach to student teaching and learning in histopathology. The purpose of this paper is to describe how virtual microscopy has been used to enhance dental students' learning of oral pathology, and its role in facilitating an integrated oral disease curriculum in Sheffield.
the challenges associated with restoring the worn dentition, the clinical cases demonstrate the stages of management in tooth wear patients from planning to clinical preparation, and laboratory stages to placement of final restorations. The illustrative clinical cases are more specialist in nature and are unlikely to be undertaken by most GDPs but give useful insight into treatment which may be undertaken in a secondary care environment. Overall, the book is a useful adjunct to any dental student or general dental practitioner who wishes to better understand clinical management of tooth wear. E. Watt
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