Chapter 16: Princples Of Exodontia

Question 1

Exodontia is defined as?

Answer 1

painless removal of the whole tooth, or tooth root with minimal trauma to the investing tissues, so that wound heals uneventfully and no post operative prosthetic problem is created

Question 2

1st dentist?

Answer 2

Hesi re
3100-2181 BC

Question 3

Dental extraction forceps go back to the time of?

Answer 3

Aristotle, 384 to 322 BC

Question 4

2 types of instruments used in exodontia are?

Answer 4

Elevators and forceps

Question 5

The most common surgical procedure in dentistry is?

Answer 5

Exodontia

Question 6

The most common reason for exodontia is

Answer 6

Caries and periodontal diseases

Question 7

Indications of exodontia:

Answer 7

15:
Caries
Pulpitis/necrosis
Periodontal disease
Orthodontic reasons
Malposed teeth
Cracked teeth
Impacted teeth
Supernumerary teeth
Temporary teeth
Teeth associated with pathologic lesions
Radiation therapy
Teeth involved in jaw fractures
Odontogenic infection
Prosthetic reasons
Financial issues

Question 8

A tooth is extracted because of caries if:

Answer 8

• severe caries
• non restorable

Question 9

A tooth is extracted because of pulpitis/necrosis if:

Answer 9

• irreversible pulpitis
• pulpal necrosis
• not candidate to endodontics
• failed endodontics
• pain

Question 10

A tooth is extracted because of periodontal disease if:

Answer 10

• severe and extensive periodontitis
• periodontal abscess
• excessive bone loss
• irreversible tooth mobility
• hyper mobile teeth

Question 11

A tooth is extracted because of orthodontic reasons if:

Answer 11

• insufficient arch length
• provide space for tooth alignment
• premolar/ mandibular incisor

Question 12

A tooth is extracted because it’s malposed if:

Answer 12

• traumatises soft tissues
• can’t be repositioned by Ortho
• 3rd max molar erupted in severe buccal , ulceration
• hyper erupted teeth

Question 13

A tooth is extracted because it’s impacted if:

Answer 13

• Unable to erupt into a functional occlusion.
• Infections, cysts.

Question 14

A tooth is extracted because it’s a supernumerary if:

Answer 14

• may interfere with eruption
• resorption
• displacement
• incisors, canines, 3rd molars

Question 15

A tooth is extracted because it’s a temporary tooth if:

Answer 15

• may interfere with eruption of permanent teeth
• space maintainers

Question 16

A tooth is extracted because it’s associated with pathological lesions such as

Answer 16

Odonotgenic cysts
Tumours

Question 17

A tooth is extracted because of radiation therapy: we should do it either
___ days before
Or
____ months after
And should use ?

Answer 17

10, 2 , antibiotics

Question 18

A tooth is extracted because it’s involved in jaw fractures if:

Answer 18

• tooth is injured, infected, severely luxated, or interferes with proper reduction, and fixation of the fracture

Question 19

A tooth is extracted because of odontogenic infections: we need to ? Before extraction

Answer 19

Prescribe antibiotics

Question 20

A tooth is extracted because of prosthetic reasons:

Answer 20

• malposed teeth, hyper eruption, isolation
• to improve occlusion and aesthetic

Question 21

Contraindications of exodontia can be?

Answer 21

Local or systemic

Question 22

The local contraindications of exodontia are:

Answer 22

5:
- acute odontogenic infections
- mandibular third molar infections
- infections of the oral mucosa
- teeth located within an area of tumour
- radiated areas

Question 23

Acute odontogenic infections:
- such as:
- tooth should be removed asap
- limitations:
- delay procedure and provide:

Answer 23

• acute periodontitis , abscess, cellulitis
• difficulty to open mouth, and reach profound anaesthesia
• antibiotic therapy

Question 24

Mandibular third molar infections (most common case of mandibular infections):
- delay until when
- use ?
- in which case can immediate extraction be performed

Answer 24

• delay until Pericoronaritis has been treated
• irrigations, antibiotics, anti inflammatories
• mild coronaritis

In Severe coronaritis: incidence of complication increases

Question 25

Infections of the oral mucosa: examples

Answer 25

• necrotising ulcerative stomatitis (NCS) (plaut vincient infection )
• herpetic stomatitis

Question 26

Teeth located within an area of a tumour:
- why

Answer 26

Bleeding, inadequate healing, dissemination of malignant cells

Question 27

Systemic contraindications include:

Answer 27

10:
Brittle DM
Uncontrolled cardiac diseases
Uncontrolled leukaemia
Hepatic disorders
Renal diseases, hyperthyroidism, seizures, adrenal insufficiency
Severe bleeding diasthesis
Fever of unknown origin, weakness
Pregnancy
Elderly

Question 28

Brittle DM:
- why?
- who can be treated

Answer 28

• Infection, bleeding, inadequate healing, hyperglycemia or hypoglycaemia
• Patients with well-controlled diabetes may be treated as reasonably normal patients

Question 29

Uncontrolled cardiac diseases:
- examples?
- delay for?
- when do we give endocarditis treatment

Answer 29

• Unstable angina pectoris, recent myocardial infarction, malignant hypertension, cardiac
  dysrhythmias.
• Delay 6 months.
• Prosthetic valve: endocarditis treatment.

Question 30

Uncontrolled leukaemia:
- what are the potential complications?

Answer 30

infections and excessive bleeding.

Question 31

Hepatic disorders:
What are the complications?

Answer 31

Bleeding

Question 32

Renal diseases, hyperthyroidism, seizure disorders, adrenal insufficiency:
Why?

Answer 32

decompensation that worsen the condition.

Question 33

Severe bleeding diathesis:
Examples?

Answer 33

haemophilia, anticoagulants.