Limited Mouth Opening "Jaw Lock"

- Definition:
- "A limited mouth opening" or "a restricted jaw opening" or "Jaw Lock" is when the condyles are not able to move downward and forward the height of the articular eminence of the jaw joints, causing difficulty or pain in opening the mouth.
- Normal Range of mouth opening is 31-35 mm Or opening mouth in range of 3 fingers.

- Causes:
Causes of Limited Mouth Opening are a lot, most commonly it's caused by:
1- OSMF,
2- Tetanus,
3- Post radiation therapy, Systemic Sclerosis (Scleroderma)
4- Ankylosis,
5- Microstomia,
6- Post Surgical Fibrosis,
7- Pericoronitis,
8- Injury to Medial Pterygoid muscle.
9- Myofacial Pain Dysfunction Syndrome.
10- Condyles are in an up and back position within the glenoid fossa causing the articular disc to be displaced forward.
11- Mouth pain
12- Jaw pain
13- Dental pain
14- Tooth decay
15- Dental infection
16- Impacted wisdom teeth
17- Jaw disorder
18- TMJ disorder
19- Freeman-Sheldon syndrome
20- Strychnine poisoning
21- Mononucleosis
22- Upper respiratory infection
23- Tonsillitis
24- Cancrum oris
25- Mumps
26- Periotonsillar abscess
27- Facial pain
28- Stroke
29- Broken jaw
30- Peritonsillar abscess
31- Facial trauma
32- Fits
33- Jaw ankylosis
34- Trismus

- Diagnostic Tests:
1- Physical examination
- Feel the face and neck, including parotid glands and local lymph nodes
- Feel the temporomandibular joint for tenderness and clicking with movement
- Inspect the mouth and pharynx
- Inspect teeth and tap each tooth if suspect dental disease
2- Blood test
- Full blood count (looking for signs of infection and atypical lymphocytes in mononucleosis
- Monospot test (screening test for mononucleosis)
- EBV serology to diagnose EBV mononucleosis
- Mumps serology test (rarely required because diagnosis is usually made on history and examination)
3- Radiological investigations
- X-ray of jaw if suspect possible fracture

- Treatment:
Is carried out by the dentist who judges a treatment according to the cause of the Limited Mouth Opening.

------------------------------
------------------------------

This Article has been Authored By :: World Of Dentistry :: TEAM
For any questions and Suggestions please don't be hesitate to feedback us.

Yours,
:: World Of Dentistry :: TEAM

Children's Teething Time

- Teething can begins around 3 months old but typically begins when your child is 6 to 7 months old.

- Signs And Symptoms:
- Excessive drooling
- Irritability
- Gumming or biting
- Appearance of a rash around the mouth, or on the face
- Decrease in appetite
- Excessive crying
- Loss of appetite
- Feverish
- Changes in bowel movements

- Management:
- Help ease the pain of teething by using a clean, cool washcloth to gently massage the gums.
- Offer the child a cool teething ring or a teething biscuit, if that is appropriate for the age of the child.

- Always supervise your child when using a teething biscuit because of the potential choking hazard.
- Talk to your doctor or dentist before using over-the-counter pain reducers or desensitizing gel.

---------------------------

This Article has been Edited By :: World Of Dentistry :: TEAM
For any questions and Suggestions please don't be hesitate to feedback us.

Yours,
:: World Of Dentistry :: TEAM

Early Childhood Cavities (ECC)

- More commonly known as "baby bottle tooth decay" is a condition that affects children up to the age of three, or as long as they remain using a bottle. 

- Although rare, ECC may indicate the potential risk for severe tooth decay when the child develops his adult teeth.

- Causes:
1- Sugars and carbohydrates in the child's diet Beverages that contain sugar such as milk, infant formula, fruit juice, or any other liquid that contain or is sweetened with sugar.
2- Bacteria transferred from the caregiver to the child.
3- The frequency of feedings
4- Allowing a child to fall asleep with bottle that contains any liquid other than pure water.

- Prevention:
1- Offering a pacifier rather than a bottle during naps and bed time
2- Speak with your dentist for advice on how to expose your child to fluoride,

- NOTES:
1- if it is not available through your water supply.
Fluoride is recommended by the American Dental Association to strengthen teeth, which may prevent tooth decay.
2- If using a bottle during periods of sleep, fill the bottle with only pure water.

------------------------------------

This Article has been Edited By :: World Of Dentistry :: TEAM
For any questions and Suggestions please don't be hesitate to feedback us.

Yours,
:: World Of Dentistry :: TEAM

Radicular Cyst

Definition:
Periapical cyst. Common non-neoplastic cyst caused by dental inflammation characterized by stratified squamous lining and inflammation.

Clinical Features:

Most frequently encountered cyst of jaws.
All age groups (most commonly third and fourth decades)

Pathogenesis:
Odontogenic (arises from odontogenic epithelium)
Sequel of dental inflammatory disease

Histopathology:
- Lined by stratified squamous epithelium:
- Thickness varies according to degree of inflammation
- Difficult to identify
- Ulceration common
- Metaplasia
- Calcification
- Hyaline bodies
- Inflammatory infiltrate in wall: (acute, chronic and mixed)
- Aggregates of cholesterol crystals
- Foamy macrophages
- Multinucleated giant cells
- Plasma cells

Diagnosis:
- Called residual cyst when observed after tooth extraction
- Two proposed categories depending on relation to tooth canal.
A- Apical true cyst
B- Apical pocket cyst

Other Investigations:
well-circumscribed radiolucency at apex of affected tooth in Radiograph.

-----------------------------

This Article has been Edited By :: World Of Dentistry :: TEAM
For any questions and Suggestions please don't be hesitate to feedback us.

Yours,
:: World Of Dentistry :: TEAM