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© l.m.brocklebank The clinical value of X-ray images of the teeth and jaws Laetitia BROCKLEBANK University of Glasgow, Scotland.

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Presentation on theme: "© l.m.brocklebank The clinical value of X-ray images of the teeth and jaws Laetitia BROCKLEBANK University of Glasgow, Scotland."— Presentation transcript:

1 © l.m.brocklebank The clinical value of X-ray images of the teeth and jaws Laetitia BROCKLEBANK University of Glasgow, Scotland

2 © l.m.brocklebank Wilhelm Roentgen Lennep Wurzburg

3 © l.m.brocklebank von Köllikers hand

4 © l.m.brocklebank why X-ray the teeth and jaws ?

5 © l.m.brocklebank Abnormalities affecting the teeth and jaws developmental traumatic inflammatory cystic neoplastic osteodystrophies metabolic/systemic idiopathic foreign bodies

6 © l.m.brocklebank Presentation plan what is a radiographic image? radiographic views for teeth and jaws critical production factors types of abnormalities normal dental development examples

7 © l.m.brocklebank Image - radiographic image a pictorial representation of a part of the body a record of the pattern of attenuation of the X-ray beam after it has passed through matter

8 © l.m.brocklebank Dental radiographic views Intra-oral bitewings periapicals occlusals Extra-oral panoramic

9 © l.m.brocklebank Bitewings side teeth (premolars and molars) symmetry of upper and lower teeth minimal overlap of adjacent teeth inter-dental bone

10 © l.m.brocklebank Periapical shows the full length of at least one tooth peri = around apical - the apex or tip of the tooth surrounding anatomical features

11 © l.m.brocklebank Periapical similar to a zoom image

12 © l.m.brocklebank Panoramic like a wide-angle view

13 © l.m.brocklebank Occlusal radiography

14 © l.m.brocklebank Critical production factors adequate kV: for intra-orals fastest image receptor available – F, E or digital correct positioning: use of film holders correct horizontal and vertical angulation appropriate collimation correct exposure time proper processing facilities

15 © l.m.brocklebank Abnormalities affecting the teeth and jaws - examples developmental traumatic inflammatory cystic neoplastic osteodystrophies metabolic/systemic idiopathic foreign bodies artefacts iatrogenic

16 © l.m.brocklebank Normal dental development permanent - 32: – incisors - 8 – canines - 4 – premolars - 8 – molars - <12 deciduous - 20: – incisors - 8 – canines - 4 – premolars - 0 – molars - 8

17 © l.m.brocklebank Dental development and abnormalities number – increase or decrease position form – individual or multiple

18 © l.m.brocklebank Inflammatory lesions tooth - dental caries (decay) supporting structures – periodontal disease - bone level – around the root tip bone - inflammation and infection

19 © l.m.brocklebank Cystic lesions of the jaws odontogenic – radicular – dentigerous – keratocyst non-odontogenic – nasopalatine – solitary bone cyst – Stafne cavity

20 © l.m.brocklebank Neoplastic, odontogenic benign – cementomas – cementifying fibroma – myxoma ameloblastoma * adenomatoid odontogenic tumour calcifying epithelial odontogenic tumour

21 © l.m.brocklebank Neoplastic, odontogenic ameloblastoma * male, 15, clinical expansion definite root resorption thinning of cortex lingually no cortex evident buccally findings suggest a locally aggressive lesion

22 © l.m.brocklebank What do you see?

23 © l.m.brocklebank family group Bart van der Leck The family, 1921

24 © l.m.brocklebank Hidden pathology

25 © l.m.brocklebank


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