Odontogenic tumours

Benign
1. Epithelial
  1. Without odontogenic mesenchyme
    1. Ameloblastoma
      1. Most common tumour
      2. Benign but locally aggressive
      3. Most common = Angle of mandible
      4. Well-defined, corticated outline
      5. Treatment = surgical excision + 1cm margin of healthy tissue
      6. High recurrence rate
      7. Differential diagnosis = Odontogenic keratocyst
      8. Malignant potential -> carcinoma
      9. Wide age range
    2. Squamous odontogenic tumour
      1. Lesion of periodontal ligament
      2. Mandible = Maxilla
      3. Triangular vertical bony defect
      4. Well defined
      5. Alveolar process
      6. Differential diagnosis = Lateral periodontal cyst
      7. Young adults
    3. Adenomatoid odontogenic tumour
      1. Upper 345 region
      2. Well-defined, corticated outline
      3. Young adults (10-30yrs)
    4. Calcifying epithelial odontogenic tumour
      1. 2nd most common
      2. Benign but locally invasive
      3. Mandible > Maxilla
      4. Molar region
      5. Adults
  2. With Odontogenic mesenchyme
    1. Ameloblastic fibroma
      1. Molar/premolar region
      2. <20 yrs old
      3. Well defined, corticated
    2. Calcifying odontogenic cyst
      1. Maxilla = Mandible
      2. Well-defined, corticated
      3. Differential diagnosis = Dentigerous cyst
      4. <40yrs
2. Mesenchymal
  1. Odontogenic fibroma
    1. Well defined
    2. Variable age
  2. Odontogenic myxoma
    1. Maxilla = Mandible
    2. Benign but locally aggressive
    3. Children & young adults
  3. Cementoblastoma
    1. Mandible premolar/molar region
    2. Vital tooth
    3. Treatment = surgical removal + XTN tooth (fused)
    4. Young adults (<25yrs)
Malignant
1. Carcinomas
  1. Ameloblastic carcinoma
2. Presentation
  1. Pain
  2. Swelling (rapid)
  3. Ulceration
  4. Tooth mobility
  5. Nerve dysfunction
  6. Bone destruction
  7. LN swelling
3. Sarcomas
Presentation
1. Asymptomatic
  1. All benign
2. Unerupted tooth
  1. Ameloblastoma
  2. Calcifying epithelial odontogenic tumour
  3. Adenomatoid odontogenic tumour
  4. Ameloblastic fibroma
  5. Calcifying odontogenic cyst
  6. Odontogenic myxoma
3. Swelling
  1. Facial deformity
    1. Ameloblastoma
    2. Ameloblastic fibroma
    3. Odontogenic myxoma
  2. Squmous odontogenic tumour
  3. Calcifying epithelial odontogenic tumour
  4. Calcifying odontogenic cyst
  5. Odontogenic fibroma
  6. Cementoblastoma
4. Shape
  1. Unilocular
    1. Calcifying odontogenic cyst
  2. Multilocular
    1. Odontogenic myxoma
      1. Soap bubbles
  3. Either
    1. Ameloblastoma
    2. Calcifying epithelial odontogenic tumour
    3. Ameloblastic fibroma
    4. Odontogenic fibroma
5. Buccal expansion
  1. Ameloblastoma
  2. Calcifying epithelial odontogenic tumour
  3. Ameloblastic fibroma
  4. Odontogenic fibroma
  5. Odontogenic myxoma
  6. Cementoblastoma
6. Radiodensity
  1. Radiolucent
    1. Ameloblastoma
    2. Squamous odontogenic tumour
    3. Odontogenic fibroma
  2. Radiopaque
    1. Cementoblastoma
  3. Mixed
    1. Calcifying epithelial odontogenic tumour
    2. Adenomatoid odontogenic tumour
    3. Calcifying odontogenic cyst
7. Tooth effects
  1. Tooth mobility
    1. Ameloblastoma
    2. Squamous odontogenic tumour
    3. Ameloblastic fibroma
  2. Root resorption
    1. Ameloblastoma
    2. Calcifying epithelial odontogenic tumour
    3. Odontogenic fibroma
    4. Odontogenic myxoma
    5. Cementoblastoma
  3. Tooth displacement
    1. Ameloblastoma
    2. Squamous odontogenic tumour
    3. Calcifying epithelial odontogenic tumour
    4. Ameloblastic fibroma
    5. Odontogenic fibroma
    6. Odontogenic myxoma

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Odontogenic tumours

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	Created by sanna pathy over 4 years ago