The document discusses several reasons why impacted third molars (wisdom teeth) can cause pain and issues if left untreated. It describes how food debris and bacteria can collect around impacted teeth and lead to infections, abscesses, cysts, damage to adjacent teeth from decay or abnormal eruption, and in severe cases, pathologic fractures of the jaw. Delaying treatment of infections from impacted teeth can allow the infection to progress and cause more serious issues.

1. Mohammed A. Alawadh
RELATION BETWEEN IMPACTED
THIRD MOLAR AND PAIN

2. The appearance of infection is the most common reason for the immediate removal of wisdom teeth.
Due to crowding that often occurs in the area of third molar eruption, food, debris, and bacteria
collect in areas that are impossible to clean.
This can lead to serious and life-threatening infection.
Infection (pericornitis)

3. Infections caused by impacted third molars can spread into the surrounding
tissues of the head and neck.
In this case, the infection spread into the soft tissue spaces of the
neck resulting in near collapse of the airway and a life threatening emergency.
Head & neck abscess

4. This type of cyst tends to grow very slowly causing little to no
symptoms until damage, such as severe bone loss, has occurred.
Dentigerous cyst

5. Severe decay induced by the eruption of the mesially angled
third molar into the distal aspect of the adjacent second molar.
Damage to second molar

6. 65 year-old with a chronic infection related to an impacted
lower third molar. The patient refused to have her tooth
removed.
The delay in proper treatment resulted in progression of the
deep bone infection caused by the impacted third molar.
This eventually resulted in a pathologic fracture of the jaw.
Pathologic fracture

7. An impacted third molar may affect the normal eruption of an
adjacent tooth.
In this case the permanent second molar’s eruption was
adversely affected by the impacted third molar behind it,
requiring the removal of both the third molar and the second
molar.
Abnormal eruption of
adjacent teeth

8. REFERENCES:
Journal of Oral and Maxillofacial Surgery 60(6):613-617,2002
Blakey GH, et al. (1996). Clinical/biological outcomes of treatment for
pericoronitis. ncbi.nlm.nih.gov/pubmed/8859232

9. End