Odontogenic Infections Flashcards
What is the most common cause of pulpal inflammation and necrosis?
Bacterial infection
How does bacteria get to the pulp?
Caries or direct access from fracture
T/F: A non-vital tooth is more susceptible to subsequent infection.
True
What bacterial species are responsible for the foul odor of necrotic pulps?
Prevotella and porphyromonas
What bacterial species have been associated with periapical abscesses?
Prevotella and porphyromonas
T/F: Strep is the main cause of pulpal infections.
FALSE
Mixed bacterial infections
Where in the pulp do proteolytic bacteria grow best?
Apically
T/F: Pulpitis can be reversed if treated early.
True
What are the early stage symptoms of pulpitis?
- Lower pain threshold
2. Prolonged pain response to cold
What happens once the pulp becomes necrotic?
No more blood supply so inflammatory response shifts to periapical tissues
Bacteria is still most numerous in the root canal
T/F: Periapical lesions are often associated with severe pain.
False
Since pulp is necrotic often asymptomatic
Diagnosis via radiographs
What is an acute dentoalveolar abscess?
Bacterial infection including pulp and apical bone
Very painful due to pus causing pressure on tissues
T/F: Antibiotics are effective against infections in the pulp and apical periodontitis/abscesses.
FALSE
How are persistent apical lesions treated?
Microsurgery or apicoectomy
If tooth infections are left untreated, what type of infection can be caused in the surrounding facial tissues?
Cellulitis
If tissue is undergoing cellulitis, what would be the clinical signs?
Swollen (edema), hard to palpation, and no pus
T/F: Lower facial cellulitis is almost always dental.
True
Cellulitis can progress to an _________.
Abscess
T/F: Cellulitis and dental abscess is a polymicrobial disease.
True
T/F: Anaerobes are more likely to cause cellulitis and dental abscess.
True
T/F: Cellulitis can be managed with antibiotics.
True
Still want to remove source of infection
What are the first choices of antibiotics for dental abscess and cellulitis?
Clindomycin and penicillin
Alveolar osteitis is caused by ___________ formation on bone surface.
Biofilm
T/F: Systemic antibiotics are effective against a dry socket.
False
Gentle debridement and medicated dressing
T/F: Long term antibiotic treatment is used for osteomyelitis of the jaw.
TRUE
How do you avoid MRONJ?
Avoid dental extractions in immunocompromised patients with history of bisphosphonate treatment
