Presentation is loading. Please wait.

Presentation is loading. Please wait.

口腔診斷學 陳玉昆助理教授 : 高雄醫學大學 口腔病理科 07-3121101~2755 Anatomic Radiopacities of the Jawbones 顎骨之 X 光不透過解剖影像.

Similar presentations


Presentation on theme: "口腔診斷學 陳玉昆助理教授 : 高雄醫學大學 口腔病理科 07-3121101~2755 Anatomic Radiopacities of the Jawbones 顎骨之 X 光不透過解剖影像."— Presentation transcript:

1 口腔診斷學 陳玉昆助理教授 : 高雄醫學大學 口腔病理科 ~2755 Anatomic Radiopacities of the Jawbones 顎骨之 X 光不透過解剖影像

2 Understanding: 1. 顎骨之 X 光不透過解剖影像 學 習 目 標學 習 目 標

3 1.Wood, Goaz. Differential diagnosis of oral lesions. Mosby, 3rd ed., Chapter 24, p Eric Whaites. Essentials of dental radiography and radiology, 4th edition, 2007, pp.6, 135, 257, 278, 309, , Tantanapornkul W et al. Correlation of darkening of impacted mandibular third molar root on digital panoramic images with cone beam computed tomography findings Dentomaxillofac 2009;38: http//www.conebeam.com References: 參考資料

4 Anatomic Radiopacities of the Jaws Ref. 2 Possible causes include: Normal anatomical structures Radiopacity  A dental anomaly  A bony lesion  A soft tissue calcification  A foreign body Artifactual Pathological

5 Anatomic Radiopacities of the Jaws (1) EnamelDentineCementum Lamina dura Periodontal ligament space Cervical burn out Ref. 1

6 Anatomic Radiopacities of the Jaws (1-1) Ref. 2

7 Anatomic Radiopacities of the Jaws (1-2) Normal distance from CEJ to crestal margin : 2-3mm Ref. 2

8 Anatomic Radiopacities of the Jaws (1-3) Cervical burnout Side view Plan view Ref. 2

9 Anatomic Radiopacities of the Jaws (2) Mandibular canal Tooth crypt Ref. 1

10 Anatomic Radiopacities of the Jaws (2-1-1) Ref. 2 Mesioangular VerticalDistoangular Horizontal InvertedTransverse

11 Anatomic Radiopacities of the Jaws (2-1-2) Ref. 2

12 Anatomic Radiopacities of the Jaws (2-2) Ref. 2

13 Anatomic Radiopacities of the Jaws (2-3) Pericoronal infection Ref. 2

14 Anatomic Radiopacities of the Jaws (2-4) Pericoronal infection Indentation of upper margin of inferior canal Ref. 2

15 Anatomic Radiopacities of the Jaws (2-5) Radiolucent band across the root: a change in direction Radiolucent band across the root: narrowed canal Ref. 2

16 Anatomic Radiopacities of the Jaws (2-6) Pericoronal infection Radiolucent across root apex Buccal aspect Distal aspect Ref. 2

17 Anatomic Radiopacities of the Jaws (2-6-1) Ref. 2 Panorex: unerupted left upper canine Spiral CT (cross section): buccal unerupted left upper canine (2mm slices)

18 Anatomic Radiopacities of the Jaws (2-6-2) Ref. 2 CBCT: mesiodens

19 Anatomic Radiopacities of the Jaws (2-6-3) Panorex: mesial root darkening; no root grooving CBCT: thinning lingual cortex by root & ID Ref. 3

20 Anatomic Radiopacities of the Jaws (2-6-4) Panorex: root darkening; no root grooving CBCT: perforation of lingual cortex by root & ID Ref. 3

21 Anatomic Radiopacities of the Jaws (2-6-5) Panorex: without root darkening CBCT: root grooving Ref. 3

22 Anatomic Radiopacities of the Jaws (2-6-6) Panorex: root seems to approximate ID CBCT: lingual cortex perforation without root approximates ID Ref. 3

23 Anatomic Radiopacities of the Jaws (2-6-7) CBCT: lower 3 rd molar with root approximates ID Ref. 2

24 Anatomic Radiopacities of the Jaws (2-6-8) Ref. 2 CBCT: lower 3 rd molar with root approximates ID

25 Anatomic Radiopacities of the Jaws (2-6-9) Impacted 3rd molar Ref. 5

26 Anatomic Radiopacities of the Jaws (2-6-10) Impacted 3rd molar Ref. 5

27 Anatomic Radiopacities of the Jaws (2-6-11) Impacted molar Ref. 5

28 Anatomic Radiopacities of the Jaws (2-6-12) Impacted molar Ref. 5

29 Anatomic Radiopacities of the Jaws (2-6-13) Impacted maxillary cuspid Ref. 5

30 Anatomic Radiopacities of the Jaws (2-6-14) Impacted maxillary cuspid Ref. 5

31 Anatomic Radiopacities of the Jaws (2-6-15) Impacted #22 Impacted #22 simulated extraction Ref. 5

32 Anatomic Radiopacities of the Jaws (2-6-16) Impacted #22 Ref. 5

33 Anatomic Radiopacities of the Jaws (2-6-17) Impacted left canine Ref. 5

34 Anatomic Radiopacities of the Jaws (2-6-18) Impacted left canine Ref. 5

35 Anatomic Radiopacities of the Jaws (2-6-19) Mandibular impacted tooth and nerve localization Ref. 5

36 Anatomic Radiopacities of the Jaws (2-6-20) Mandibular impacted tooth and nerve localization Ref. 5

37 Anatomic Radiopacities of the Jaws (2-7) Front RightLeft Principle of parallax: the apparent displacement of an object due to different positions of the observer Opposite BuccalSame Lingual SLOB Object moves in same direction ( 遠方 ) ( 近方 ) Ref. 2

38 Anatomic Radiopacities of the Jaws (2-8) Position 1 Position 2 Position 1 Position 2 Same Lingual ( 遠方 -palatal side) Ref. 2

39 Anatomic Radiopacities of the Jaws (2-9) Panorex Upper occlusal Unerupted mesiodens Crown portion ( 遠方 -palatal side) Apex portion ( 近方 -labial side) SLOB Same Lingual Opposite Buccal Ref. 2

40 Anatomic Radiopacities of the Jaws (2-10) Vertex occlusal Not recommended due to high radiation dose Ref. 2

41 Anatomic Radiopacities of the Jaws (3) Incisive canal Anterior nasal spine Nasal fossa Incisive canal cyst Ref. 1

42 Anatomic Radiopacities of the Jaws (4) Anterior nasal spine Nasal fossa Soft tissue shadow of nose Ref. 1

43 Anatomic Radiopacities of the Jaws (5) Anterior nasal spine Inferior turbinates Ref. 1

44 Anatomic Radiopacities of the Jaws (6) Maxillary sinus Y Medial wall of sinus meets the lateral wall of nasal chamber Ref. 1

45 Anatomic Radiopacities of the Jaws (7) Maxillary sinus floor- flat Zygoma Ref. 1

46 Anatomic Radiopacities of the Jaws (8) Maxillary sinus floor- scalloped Ref. 1

47 Anatomic Radiopacities of the Jaws (9) Zygomatic process Zygomatic bone Zygomatic bone Tuberosity- soft tissue shadow Ref. 1

48 Anatomic Radiopacities of the Jaws (10) Hamular process Lateral pterygoid plate Ref. 1

49 Anatomic Radiopacities of the Jaws (11) Coronoid porcess Ref. 1

50 Anatomic Radiopacities of the Jaws (12) Mylohyoid ridge (internal oblique ridge) External oblique ridge Ref. 1

51 Anatomic Radiopacities of the Jaws (13) Mental ridge Ref. 1

52 Anatomic Radiopacities of the Jaws (14) Lingual foramen- radiopque ring Genital tubercle- occlusal view Ref. 1

53 Anatomic Radiopacities of the Jaws (15) Ala of nose Ala of nose- edentulous jaw Ref. 1

54 Anatomic Radiopacities of the Jaws (16) Nasal labial fold Ref. 1

55 Summarie s 明白顎骨之 X 光不透過 解剖影像。


Download ppt "口腔診斷學 陳玉昆助理教授 : 高雄醫學大學 口腔病理科 07-3121101~2755 Anatomic Radiopacities of the Jawbones 顎骨之 X 光不透過解剖影像."

Similar presentations


Ads by Google