Oral Surgery: Benign Cystic Lesions Quiz

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Questions and Answers

What is the primary characteristic of Stafne's bone cavity?

It typically occurs in females.

It is a cyst.

It always causes pain.

It is a symptomless lesion. (correct)

What is the usual age and gender demographic for Stafne's bone cavity?

Females over 50 years old

Males over 40 years old (correct)

Males under 30 years old

Both genders equally across all ages

Where is Stafne's bone cavity typically located?

In the anterior maxilla

Below the inferior alveolar canal (correct)

On the palatine bone

Above the inferior alveolar canal

What defines the Gingival Cyst of the Adult?

It arises from remnants of the dental lamina. Signup and view all the answers

What is the typical treatment for a Gingival Cyst of the Adult?

Surgical excision Signup and view all the answers

What are Epstein's pearls associated with?

Gingival cysts of infants Signup and view all the answers

What is NOT a clinical feature of a Gingival Cyst of the Adult?

Bluish coloration Signup and view all the answers

What is the recommendation for Stafne's bone cavity management?

Regular radiological follow-up Signup and view all the answers

Which type of cyst is commonly associated with impacted third molars?

Dentigerous cyst Signup and view all the answers

What does percussion of the teeth over a solitary bone cyst produce?

A dull or hollow sound Signup and view all the answers

What indicates the presence of an apical periodontal cyst?

Presence of a fractured tooth Signup and view all the answers

What is true about teeth adjoining an odontogenic keratocyst?

They typically have vital pulps. Signup and view all the answers

What is the significance of performing vitality tests on teeth related to a cyst?

It is essential for preoperative and postoperative assessment. Signup and view all the answers

What primarily causes the formation of a ranula?

Extravasation of mucous due to trauma Signup and view all the answers

What is indicated by the expansion of both cortical plates?

A lesion other than a cyst Signup and view all the answers

What radiographic examination is best for visualizing a cyst in the maxillary sinus?

Occipitomental projection Signup and view all the answers

Which clinical feature is NOT associated with a superficial ranula?

Painless hard mass in the neck Signup and view all the answers

Which treatment option is recommended to avoid recurrence of a ranula?

Surgical removal of the sublingual gland Signup and view all the answers

How can fluctuation be elicited in relation to a cyst?

When the cystic lining lies beneath the mucosa Signup and view all the answers

Where are dermoid cysts commonly located in the mouth?

In the midline in the floor of the mouth Signup and view all the answers

What is a potential complication of dermoid cysts located above the geniohyoid muscle?

Difficulty with mastication and speech Signup and view all the answers

What characterizes an epidermoid cyst compared to a dermoid cyst?

Absence of skin appendages Signup and view all the answers

What is an important diagnostic feature suggesting the presence of a cyst in the jaw?

Absence of teeth from their normal position Signup and view all the answers

What is the most effective treatment approach for large dermoid cysts located inferior to the geniohyoid muscle?

Surgical excision via an extraoral approach Signup and view all the answers

What sound is produced when percussion is applied to teeth overlying a cyst?

A dull sound Signup and view all the answers

What is the recurrence rate of keratocysts within the first 5 years?

5-60% Signup and view all the answers

Which of the following treatment methods is incorrect for keratocysts?

Marsupialization Signup and view all the answers

Which feature of keratocysts increases the chance of recurrence?

Presence of satellite cysts Signup and view all the answers

What term describes the syndrome associated with multiple keratocysts?

Gorlin-Goltz syndrome Signup and view all the answers

In which demographic is dentigerous cysts most commonly found?

Adults in their first to third decades Signup and view all the answers

What characteristic does a dentigerous cyst have?

Formed by the enlargement of the follicular space Signup and view all the answers

How is the defect closed after surgical management of larger cysts?

Suture closed primarily Signup and view all the answers

What is one of the primary uses of aspiration in the diagnosis of cysts?

To distinguish cysts from solid tumors Signup and view all the answers

Which of the following is an indication for choosing marsupialization over enucleation?

The patient is a young child with developing tooth germs Signup and view all the answers

What is the primary purpose of injecting radiopaque dye into a cyst?

To assess the size and relations of the cyst Signup and view all the answers

What might be the consequence of failing to aspirate liquid from a cyst?

Suggests the possibility of a solid tumor Signup and view all the answers

Which is a recognized advantage of marsupialization?

It preserves vital structures and reduces operating time Signup and view all the answers

What does enucleation commonly involve in the treatment of jaw cysts?

Removing the entire cyst along with surrounding tissues Signup and view all the answers

Under what condition is marsupialization considered a reasonable alternative to enucleation?

In elderly and debilitated patients to minimize stress Signup and view all the answers

Which circumstance can complicate the decision for surgical intervention in cysts?

Proximity of the cyst to vital structures Signup and view all the answers

What is commonly used to treat nonvital teeth associated with radicular cysts?

Extraction Signup and view all the answers

Which type of cyst is characterized by being asymptomatic and discovered on radiographic examination?

Residual cyst Signup and view all the answers

What type of cyst arises from epithelial inclusions during fusion of the palatine processes?

Median palatal cyst Signup and view all the answers

What is a typical clinical feature of a globulomaxillary cyst?

Presence between maxillary lateral incisor and canine Signup and view all the answers

What is a key radiological feature of radicular cysts?

Ovoid shaped radiolucency with a narrow radio-opaque margin Signup and view all the answers

What is a treatment option for a median palatal cyst?

Enucleation with primary closure Signup and view all the answers

What occurs when a periapical granuloma is incompletely enucleated?

Formation of a residual cyst Signup and view all the answers

In which location is a median palatal cyst typically seen?

Hard palate Signup and view all the answers

Study Notes

Oral Surgery: Benign Cystic Lesions of the Oral Cavity

A cyst is a cavity with a lining of epithelium and filled with fluid, semifluid, or gas.
The cyst wall is surrounded by connective tissue.
Cysts form due to epithelial proliferation and fluid accumulation.
Cysts can enlarge by increasing content volume and resorbing surrounding bone.
Cysts can displace vital structures.

Classification of Intraosseous Cysts

I. Epithelial Cysts

A. Odontogenic Epithelial Origin
- i. Developmental:
  - Primordial cyst (keratocyst)
  - Dentigerous cyst (follicular cyst)
  - Lateral periodontal cyst
  - Calcifying odontogenic cyst
- ii. Inflammatory:
  - Radicular cyst (apical)
  - Residual cyst
B. Nonodontogenic Epithelial Origin (fissural cysts)
- Median mandibular
- Median palatal
- Globulomaxillary
- Incisive canal (nasopalatine duct cyst)

II. Non-Epithelial Cysts

Solitary bone cyst (traumatic)
Aneurysmal bone cyst
Stafne's bone cavity

Primordial Cyst (Keratocyst)

A developmental anomaly of odontogenic epithelium.
It may arise from the dental lamina or enamel organ remnants.
Commonly found in the mandible.
Incidence: 5-10% of odontogenic cysts.
More prevalent in males.
Usually asymptomatic until large.

Dentigerous Cyst

Develops from the dental follicle of an impacted tooth, often enlarging the follicular space.
Usually found in the mandible.
More common than keratocysts.
Incidence mostly in males, 1st to 3rd decades of life.
Radiographic features: unilocular or multilocular radiolucency, often around an impacted tooth.

Calcifying Epithelial Odontogenic Cyst

Also known as odontogenic ghost cell cyst or Gorlin cyst.
Often seen in children and young adults.
Asymptomatic until large.
Radiographic features: unilocular or multilocular radiolucency. May involve cortical perforation or contain calcifications.

Radicular Cysts

Inflammatory cysts originating from periapical tissues.
Can develop into a periapical or lateral radicular cyst.
Associated with infected nonvital teeth.
Most prevalent in the 2nd and 3rd decades of life (males).
Usually asymptomatic.
Radiographic features: radiolucency around affected tooth.

Nasopalatine Duct Cyst

Arises from epithelial remnants in the embryonic nasopalatine canal.
Found in the maxillary palate.
Typically occurs in adults between the fourth and sixth decades.
Usually asymptomatic.
Radiographic features: well-defined, round or ovoid radiolucency.

Globulomaxillary Cyst

Arises from epithelial inclusions at the fusion site of the globular and maxillary processes.
Uncommon in adults.
Usually asymptomatic.

Stafne's Bone Cavity

Not a true cyst.
Clinically similar.
Usually asymptomatic; found incidentally.
May be associated with failure of normal bone deposition from cartilage.

Solitary Bone Cyst

Also known as traumatic or hemorrhagic bone cyst.
Usually in long bones (rarely maxilla).
Commonly in adolescents or children.

Gingival Cyst of Adults

Arise from dental lamina remnants.
Typically in the canine and premolar regions of the mandible.

Mucocele

Retention cysts of salivary glands
Typically caused by either obstruction or trauma to a salivary duct.

Ranula

A mucocele located in the floor of the mouth.
Two types: superficial and plunging.

Dermoid Cysts

A developmental cyst.
Contains skin-like epidermal tissues.
Often located in the neck or floor of the mouth.
Typically asymptomatic until large.

Nasolabial Cyst

Fissural cyst.
Typically in the nasolabial fold between the nose and lip.
May be unilateral.
Uncommon.

Treatment and Surgical Techniques

Treatment methods often vary to include enucleation and marsupialization (depending on the size and location of the lesion).
Specific surgical technique details are given for each lesion.

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Description

Test your knowledge on benign cystic lesions of the oral cavity with this quiz. Explore different classifications of intraosseous cysts, including their epithelial and non-epithelial origins. Challenge yourself to identify various types of cysts and their characteristics.