Oral Mucosa Color

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Questions and Answers

What is the primary cause of frictional keratosis?

Rough or misadjusted dentures

Sharp cusps and edges of broken teeth

Parafunctional behavior such as sucking trauma

Chronic rubbing or friction against oral mucosa (correct)

What is the characteristic histopathological feature of alveolar ridge keratosis?

Dysplastic changes in the epithelium

Chronic inflammatory cells in the connective tissue

Marked hyperorthokeratosis, hypergranulosis and acanthosis (correct)

Marked hyperplasia

Which of the following areas is commonly affected by frictional keratosis?

Soft palate

Floor of the mouth

Lips and lateral borders of tongue (correct)

Palate

What is the primary goal of treatment for frictional keratosis?

To remove the cause or habit Signup and view all the answers

What is the characteristic feature of linea alba?

A horizontal streak on the buccal mucosa Signup and view all the answers

What is the most common association with linea alba?

Pressure, frictional irritation, or sucking trauma Signup and view all the answers

What is the term for habitual chewing or biting on the oral mucosa?

Morsicatio mucosae oris Signup and view all the answers

What is the primary concern for patients with frictional keratosis?

Anxiety due to the perceived malignant or premalignant nature Signup and view all the answers

What is the likely diagnosis of a patient presenting with a white lesion in the oral cavity due to accumulation of urea in saliva?

Uremic stomatitis Signup and view all the answers

What is the main cause of thermal burn in the oral cavity?

All of the above Signup and view all the answers

Which type of keratosis is caused by friction?

Frictional keratosis Signup and view all the answers

What is the treatment for uremic stomatitis?

All of the above Signup and view all the answers

What is the normal color of oral mucosa?

Pink Signup and view all the answers

What is the likely diagnosis of a patient presenting with a white, diffuse, translucent milky appearance with folds resulting in wrinkling of the mucosa?

Leukoedema Signup and view all the answers

What is responsible for the white color in oral lesions?

Fungal pseudomembranes Signup and view all the answers

What is the factor that controls the color of oral mucosa?

All of the above Signup and view all the answers

What is the treatment for electrical burn in the oral cavity?

No treatment, as it heals by scar formation Signup and view all the answers

What is the main cause of uremic stomatitis?

Accumulation of urea in saliva Signup and view all the answers

What is characterized by reduction in tissue production of keratin?

Hyperkeratosis Signup and view all the answers

What is the characteristic appearance of leukoedema?

Faint, diffuse translucent milky white appearance Signup and view all the answers

What is associated with reduced vascularity of the connective tissue?

White lesions Signup and view all the answers

What is an example of a white lesion?

Fungal pseudomembranes Signup and view all the answers

What is characterized by an increase in vascularity of the connective tissue?

Red lesions Signup and view all the answers

What is the term for the thickening of the outer layer of the epithelium?

Hyperkeratosis Signup and view all the answers

Study Notes

Color of Oral Mucosa

Normal color of oral mucosa is pink
Resulting from the passage of light through the translucent superficial layer of soft tissues, striking the capillary bed, and reflecting back
Factors controlling its color:
- Changes over the epithelium
- Changes within the epithelium
- Changes under the epithelium

White Lesions

Caused by:
- Changes over the epithelium
- Changes within the epithelium
Examples:
- Fungal infections producing whitish pseudomembranes
- Hyperkeratosis
- Uremic stomatitis (considered as a chemical burn)
- Electrical and thermal injuries of oral mucosa
- Reversible oral keratosis (e.g. frictional keratosis, smoker's keratosis, glass blower keratosis, actinic keratosis)
- Hereditary (genetic) conditions (e.g. leukoedema, white sponge nevus, hereditary benign intraepithelial dyskeratosis, follicular keratosis)

Leukoedema

Unknown exact cause, but related to tobacco, betel nut chewing, and poor oral hygiene
Genetic factor may be involved
More common in dark adults, males more than females
Asymptomatic and has a faint, diffuse, translucent, milky white appearance with folds resulting in wrinkling of the mucosa

Frictional Keratosis

Caused by chronic rubbing or friction against oral mucosa
Stimulates the epithelium to respond with increased production of keratin
Protective mechanism against low-grade, long-term insult
Common in areas that are commonly traumatized (e.g. lips, lateral borders of tongue, buccal mucosa along the occlusal line, and edentulous ridges)

Linea Alba

A horizontal streak on the buccal mucosa
Can present unilateral or bilateral at the level of the occlusal plane
Associated with pressure, frictional irritation, or sucking trauma from the facial surfaces of the teeth
No treatment required

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Description

This quiz is about the normal color of oral mucosa and how it is affected by the passage of light through soft tissues. Learn about the science behind the color of oral mucosa.