Spread Of Infection Flashcards

1
Q

The inflammation of pulp tissue which can be reversible or irreversible

A

Pulpitis

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2
Q

Infection spread into periapical tissue causes…

A

Periapical periodontitis

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3
Q

Accumulation of pus within the PDL

A

Periodontal abscess

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4
Q

Inflammation of the surrounding tissue around a partially erupted wisdom tooth

A

Pericoronitis

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5
Q

Odontogenic infection within the confines of the jaw

A

Osteomyelitis

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6
Q

What would you diagnose if:

Toxins from carious bacteria stimulate an acute inflammatory reaction within pulp tissue

A

Reversible pulpitis

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7
Q

What would you diagnose if:

Bacterial colonisation of the pulp occurred which could lead to pulp necrosis if untreated

A

Irreversible pulpitis

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8
Q

How would you treat irreversible pulpitis?

A

Root canal treatment

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9
Q

What would you diagnose if:

Toxins from carious bacteria move into PDL space, triggering acute inflammation.

A

Periapical periodontitis

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10
Q

How can toxins from bacteria move from the pulp into PDL space to cause periapical periodontitis?

A

Through lateral canals off pulp chamber

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11
Q

What does acute inflammatory reaction of the PDL stimulate?

A

A build up of hydrostatic pressure and subsequent build up of fluid

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12
Q

What triggers osteoclastic bone resorption?

A

Hydrostatic pressure and fluid pressure on the adjacent bone

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13
Q

What leads to bone loss around the apex of a tooth?

A

Osteoclastic bone resorption

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14
Q

how would periapical periodontitis appear on a radiograph?

A

As a periapical radiolucency and loss of lamina dura

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15
Q

What would be the next step in treatment of periapical periodontitis id endodontic treatment fails?

A

Extraction of the tooth

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16
Q

The final stage of periodontitis, generally non-painful condition that presents in the apical portion of the apical canal around the apex of a tooth, causing long-lasting inflammation.

A

Chronic periapical periodontitis

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17
Q

What Odontogenic infection is associated with periapical cyst formation?

A

Chronic periapical periodontitis

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18
Q

What is a very rare, but possible extra oral swelling as a result of chronic periapical periodontitis?

A

Oral cutaneous fistula

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19
Q

How does swelling relating to periapical periodontitis usually initially present?

A

Intra-orally

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20
Q

In odontogenic infection from maxillary teeth, where could intra-oral swelling present?

A

Buccal or palatal

21
Q

What blade would you use to incise and drain pus?

A

Number 11 blade

22
Q

What will “follow the path of least resistance”?

A

Pus

23
Q

Where are apices of most teeth close to?

A

The buccal cortex

24
Q

What are the more common intra-oral swellings and why?

A

Buccal swellings because the apices of most teeth are closer to the buccal cortex than the lingual/palatal cortex

25
Q

What are the three ways that you could treat intra-oral swellings?

A
  1. Extrication and sterilisation of the pulp
  2. Extraction
  3. Excise and drain puss
26
Q

What are the 4 potential paths of infection spread fro maxillary 6’s and 7’s?

A
  • palatal swelling
  • buccal swelling
  • facial swelling
  • maxillary Sinusitis
27
Q

What is the most likely presentation of swelling if the muscle attachments are higher than the tooth root?

A

Intra-oral swelling

28
Q

What is the most likely presentation of swelling if the muscle attachments are lower than the tooth root?

A

Extra-oral swelling

29
Q

What special investigation result would indicate periapical inflammatory process?

A

If a tooth is tender to percussion (TTP)

30
Q

What is the reason you would do culture and sensitivity testing for a patient with suspected abscess?

A

It would give you an idea of what bacteria is involved in the infection and also indicate what antibiotic is most appropriate for treatment

31
Q

What type of bacteria is mostly involved in the formation of an abscess?

A

Anaerobic

32
Q

what antibiotic would be the primary choice for treatment of a periapical abscess?

A

Metronidazole

33
Q

How would a canine space infection present and why?

A

Would present as an infra-orbital swelling.
This is because the canine roots are long and pass the muscle attachments of facial expression.

34
Q

Where do buccal space infection most commonly originate from?

A

Odontogenic infection in maxillary molars

35
Q

What facial plane infection is a rare but possible result of odontogenic infection of a maxillary 8?

A

Infratemporal space infection

36
Q

why is there a particular need for infratemporal space infection to be recognised and treated early?

A

Because, if allows to progress, infection will do so posteriorly towards the pterygoid plexus of veins. This plexus connects with the cavernous sinus.

37
Q

Swelling of tissues as a consequence of acute inflammatory oedema OR Transient swelling caused by the build-up of oedema fluid in tissues.

A

Cellulitis

38
Q

If an infected mandibular molar root is closer to the buccal cortex, what would be the likely presentation of swelling?

A

Intra-oral buccal swelling

39
Q

If an infected mandibular molar root is closer to the buccal/inferior cortex, what would be the likely presentation of swelling?

A

Infection spread under mylohyoid, presenting as an extra-oral submandibular space swelling in the neck

40
Q

If an infected mandibular molar root is closer to the lingual cortex, what would be the likely presentation of swelling?

A

Either:
Submental swelling
OR
Sublingual swelling

41
Q

If an infected mandibular molar root is closer to the lingual cortex, and infection spreads to the anterior belly of digastric muscles, what would be the likely presentation of swelling?

A

Submental swelling

42
Q

If an infected mandibular molar root is closer to the lingual cortex, and infection spreads above the mylohyoid, what would be the likely presentation of swelling?

A

Sublingual swelling

43
Q

What does cervical facial planes refer to?

A

Spaces that connect the head, neck and mediastinum

44
Q

If infection spreads to prevertebral spaces in the neck, what could be the sequelae of this?

A

Infection of whole mediastinum ( mediastinitis)

45
Q

If infection spreads to retropharyngeal space in the neck, what could be the sequelae of this?

A

Secondary infection of posterior mediastinum

46
Q

As a dentist, what would you do if a patient came in presenting with a large extra-oral swelling?

A

Refer to secondary care immediately

47
Q

What are the main bacteria associated with Ludwig’s angina?

A

Streptococcus and staphylococcus

48
Q

what life-threatening condition involves swelling of submandibular, sublingual and submental spaces?

A

Ludwig’s angina