Dental Cysts – Symptoms, Causes And Treatment Question And Answers

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Oral Medicine Cysts Important Notes

1. Pseudo Cysts Are:

  • Stafne’s cyst
  • Aneurysmal bone cyst
  • Hemorrhagic bone cyst
  • Mucocele

2. Aneurysmal Bone Cyst

  • It is a lesion of young persons
  • Commonly occur in long bones and vertebral column with a history of trauma
  • Characterized by excessive bleeding

3. Cysts And Their Radiographic Features

Oral Medicine Cysts- Cyst and their radiographic features

Read And Learn More: Oral Medicine Question and Answers

4. Cyst And Their Location

Oral Medicine Cysts- Cyst and their location

5. Cysts And Their Origin

Oral Medicine Cysts- Cyst and their origin

6. Nasolabial Cyst

  • Arises at the junction of the globular portion of the lateral nasal process, medial nasal process, and maxillary process
  • It is a soft tissue cyst
  • Has no radiographic features

7. Syndromes Associated With Dentigerous Cyst

  • Cleidocranial dysplasia
  • Maroteaux Lamy syndrome

8. Gorlin Goltz Syndrome

  • Multiple Odontogenic keratocyst
  • Basal cell carcinoma
  • Bifid basal rib
  • Sexual abnormalities
  • Neurological and ophthalmological abnormalities

9. Rushton Bodies Are Seen In

  • Periapical cyst
  • Dentigerous cyst
  • Gingival cyst of infants

Oral Medicine Cysts

Oral Medicine Cysts Short Essays

Question 1. Median Mandibular Cyst.

Answer:

Median Mandibular Cyst

They have been derived from epithelium remnants between the fusing mandibular process during the embryonic phase

Median Mandibular Cyst Clinical Features:

  • It is a rare lesion
  • Site: in the midline of the mandible
  • It may cause displacement of the adjacent teeth
  • The cystic swelling may be palpable buccally
  • The teeth associated with the lesion are vital
  • Radiographic Features:
    • Well-defined small radiolucency is seen in the mid-line of the mandible

Median Mandibular Cyst  Management:

  • Enucleation of the cyst is done
  • Care should be taken not to damage the apices of the teeth

Question 2. Gingival cyst of infants.

Answer:

Gingival Cyst Of Infants

  • Gingival cysts of the infant are multiple small, nodular, keratin-filled, cystic lesions seen in the oral cavity
  • Depending on their location, they are divided into:
    • Cyst of the dental lamina
      • These are mostly found along the alveolar ridge and are odontogenic in origin
    • Epstein’s pearls
      • These small cystic lesions are found along the mid-palatine raphe
      • They are derived from the epithelium, entrapped along the line of fusion of the palate during embryogenesis
    • Bohn’s nodules
      • These are small cysts usually found along the junction of the hard and soft palate and over buccal and lingual aspects of the alveolar ridge
      • They are derived from remnants of the mucosal glands

Gingival Cyst Of Infants Clinical Features:

  • They are usually multiple, asymptomatic
  • They are small, discrete, white nodules developing in several parts of the oral cavity
  • They may discharge the contents by fusion with the overlying alveolar mucosa
  • They may undergo spontaneous regression

Gingival Cyst Of Infants Management:

  • No treatment is required

Question 3. Dentigerous cyst.

Answer:

Dentigerous Cyst Clinical Features:

  • Sex: Common in males
  • Age: First and 3rd decade
    • Site: Mandibular 3rd molar, maxillary canines, maxillary 3rd molar
    • Expansion of bone
    • Facial asymmetry
    • Displacement of adjacent teeth
    • Resorption of adjacent teeth

Dentigerous Cyst Radiological Features:

  • The unilocular, well-defined radiolucency
  • Margins- sclerotic

Dentigerous Cyst Types:

  1. Central: covering the crown of an unerupted tooth
  2. Circumferential: covering the crown from all the sides
  3. Lateral: covering crown from the side

Dentigerous Cyst Management:

  • Marsupialization- In children
  • Enucleation – In adults

Question 4. Odontogenic keratocyst.
(or)
Question 4. Primordial Cyst.

Answer:

Odontogenic Keratocyst Clinical Features:

  • Age: 2ndand 3rd decade
  • Sex: Common in males
  • Site: mandible
  • Features:
  • Asymptomatic
    • If secondary infected, causes expansion of cortical plates
    • Mobility of teeth
    • Pain and tenderness of the site

Odontogenic Keratocyst Radiological Features:

  • Unilocular or multilocular radiolucency
  • Margins: well-defined sclerotic margins
  • Expansion of cortical plates
  • Soap bubble appearance

Odontogenic Keratocyst Management:

  • Enucleation Of Cyst:
    • Smaller single cyst through intraoral approach
    • Unilocular lesions through marginal excision
    • Large multilocular lesions

Resection of involved bone
↓
Reconstruction of the site
↓
Bone grafting

Question 5. Radicular Cyst.

Answer:

Radicular Cyst Etiology:

  • Dental caries
  • Fractured tooth
  • Thermal/ Chemical injury to the pulp
  • Iatrogenic injury to the pulp

Radicular Cyst Clinical Features:

  • Sex: common in males
  • Age: Young age
  • Site: common in maxillary anterior
  • Nonvital tooth
  • Smaller cysts are asymptomatic
  • Larger lesions produce slow enlarging, bony hard swelling
  • Expansion and distortion of cortical plates
  • Severe bone destruction
  • Springiness of jawbones
  • Pain is secondarily infected
  • Intraoral or extraoral pus discharge
  • Pathological fractures
  • Formation of an abscess called “cyst abscess”

Radicular cyst Clinical Features

Radicular Cyst Radiological Features:

  • The unilocular radiolucent area around the apex of the nonvital tooth
  • Border: sclerotic
  • Diameter: less than 1 cm
  • Discontinuity of lamina dura

Radicular Cyst Treatment:

  • Nonvital tooth
  • Extraction
  • RCT
  • Smaller cyst
    • Removed through socket
  • Larger cyst
    • Marsupialization

Oral Medicine Cysts Short Answers

Question 1. Residual cyst.

Answer:

Residual Cyst

  • Any cyst may have an associated periapical or periodontal cyst which is asymptomatic

Residual Cyst Clinical Features:

  • The patient may complain of tooth pain
  • The tooth may be extracted without noticing the presence of a cyst in the region associated with the tooth
  • In such cases, the cyst is known as a residual cyst
  • It continues to grow even after the tooth is removed as the cystic lining is still present
  • The cyst is seen in an edentulous area, in place of the extracted tooth
  • Incidence is more in the maxilla than mandible

Residual Cyst Treatment:

  • Enucleation

Question 2. Globulomaxillary cyst.

Answer:

Globulomaxillary Cyst

  • A common type of developmental cyst
  • Arises in the bone suture, between the maxilla and premaxilla

Residual Cyst Clinical Features:

  • Asymptomatic
  • If the secondary infection causes pain and discomfort
  • Small swelling between canine and premolar
  • Vital teeth

Residual Cyst Radiographic Features:

  • The inverted pear-shaped radiolucent area between the roots of the upper lateral incisor and canine
  • Divergence of the roots

Residual Cyst Treatment:

  • Surgical excision

Oral Medicine Cysts Viva Voice

  1. A nasolabial cyst is a soft tissue cyst
  2. Stafne cyst is due to the developmental inclusion of sali-vary glandular tissue on the lingual surface of the mandible below the mandibular canal
  3. A nasopalatine cyst is the most common Odontogenic cyst
  4. Globulomaxillary cyst is found within bone
  5. A globulomaxillary cyst is present between the maxillary lateral incisor and cuspid
  6. Globulomaxillary cyst is fissural cyst
  7. A radicular cyst is an inflammatory cyst
  8. Botryoid Odontogenic cyst is a multicystic variant of lateral periodontal cyst
  9. Eruption cyst is a form of dentigerous cyst

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