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Question 1

Maxillary sinus drain and open into what?

Answer 1

Drains into middle meatues
Opens into hiatus semilunaris

Question 2

Type of Epi in maxillary sinus?

Answer 2

Pseudo-stratified ciliated columnar epithelium with goblet cells

Question 3

Maxillary sinus downward and lateral borders?

Answer 3

Downward: Alveolar process
Lateral : Zygoma

Question 4

Maxillary sinusitis is :

Answer 4

An inflammation of mucosal lining of the sinus

Question 5

What are the types of maxillary sinusitis and duration ?

Answer 5

• Acute : 4 weeks or less
• Subacute : 4-12 weeks
• Chronic : 12 weeks or more
• Recurrent Acute : 4 or more attacks per year

Question 6

Most common cause of Maxillary sinusitis?

Answer 6

• infectious

Question 7

3 causes of maxillary sinusitis Due to Dental origin ?

Answer 7

• Oroantral communication
• periapical abcess
• Radicular cyst or Dentigerous cyst
• Facial fracture
• Lymphatic spread

Question 8

Symptoms of Maxillary sinusitis?

Answer 8

Nasal obstruction/blockage

Headache

Fever (acute sinusitis only)

Yellow or green-colored discharge from the nose

Postnasal drip Halitosis (bad breath)

Tenderness over sinus (increased by positioning))

Aching teeth in the upper jaw (Multiple) Due to nerve supply

Loss of the sense of smell

Persistent cough

Generally feeling unwell

Question 9

What is the imaging of choice to Assess maxillary sinusitis?

Answer 9

Medical CT

Question 10

What is the treatment of maxillary sinusitis?

Answer 10

• Supportive treatment of Antibiotics starting by Amoxicillin then (Augmentin or Erythromycin …)
• Analgesic
• Anti-inflammatory
• Decongestant

Question 11

4 of Complications of sinusitis?

Answer 11

• Orbital Abscess and Intracranial Abscess
• Meningitis
• Cavernous Sinus thrombosis
• GIT and osteomyelitis

Question 12

Most common teeth to displace the root into Maxillary sinus?

Answer 12

1st , 2nd molars and 2nd premolar are at the
most risk.

Question 13

How to prevent Displacement of root into maxillary sinus?

Answer 13

-know the relationship of the roots with the sinus

-adequate grip

-use controlled force

-sectioning the roots

Question 14

Oroantral Communication OAC :

Answer 14

Clinical Diagnosis not radiographic

Question 15

S&S of OAC :

Answer 15

Antral floor attached to roots apices of extracted tooth .

Fracture of the alveolar process or the
tuberosity.

Escape of fluids

Epistaxis

Evidence of air stream passing from nostril
(blowing of cheeks).

Bubbling of blood from the socket.

Change in speech tone and resonance.

Radiographical evidence of sinus involvement.

Question 16

Management of OAC :

Answer 16

• Avoid i doing it
• Section multirooted teeth
• If the sinus membrane is intact, keep it
  intact
• Sinus Precuations after tooth extraction

Question 17

What is The difference’s between less than 2 mm and 2-4 mm OAC treatment?

Answer 17

2-4 mm OAC treatment i have to use gelfoam or surgicel

Question 18

The type of suture of OAC ?

Answer 18

Figure of 8

Question 19

Flaps Indicated for over 4 mm OAC :

Answer 19

Buccal Advancement Flap
 Palatal Rotation Flap
 Buccal fat pad pedicled flap
 Combination

Question 20

What is sinus precautions?

Answer 20

Avoid vigorous rinsing
Avoid Nose blowing
Avoid bending
Avoid smoking
Avoid drinking with a straw
Keep your mouth wide open when coughing or sneezing