Dental abscess: Difference between revisions

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==Background==
==Background==
*Associated with dental caries or nonviable teeth
*Significant erosion of the pulp with bacterial overgrowth
{{Dental numbers}}
[[File:Periodontium.png|thumb|Anatomy of the periodontium. The crown of the tooth is covered by enamel (A). Dentin (B). The root of the tooth is covered by cementum. C, alveolar bone. D, subepithelial connective tissue. E, oral epithelium. F, free gingival margin. G, gingival sulcus. H, principal gingival fibers. I, alveolar crest fibers of the periodontal ligament (PDL). J, horizontal fibers of the PDL. K, oblique fibers of the PDL.]]
===Periapical vs Periodontal Abscess===
===Periapical vs Periodontal Abscess===
{| {{table}}
{| {{table}}
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| Epidemiology||More common||Less common
| Epidemiology||More common||Less common
|-
|-
| Area||Associated with a nonvital dead tooth (i.e. pulpitis)||Associated with a vital (living) tooth
| Area||Associated with a nonviable dead tooth (e.g. [[pulpitis]])||Associated with a vital (living) tooth
|-
|-
| Cause||Tooth infection||Gum infection
| Cause||Tooth infection||Gum infection
|}
|}
{{Dental numbers}}
[[File:Periodontium.png|thumb|Anatomy of the periodontium. The crown of the tooth is covered by enamel (A). Dentin (B). The root of the tooth is covered by cementum. C, alveolar bone. D, subepithelial connective tissue. E, oral epithelium. F, free gingival margin. G, gingival sulcus. H, principal gingival fibers. I, alveolar crest fibers of the periodontal ligament (PDL). J, horizontal fibers of the PDL. K, oblique fibers of the PDL.]]


==Clinical Features==
==Clinical Features==

Revision as of 23:10, 2 December 2021

Background

Periapical vs Periodontal Abscess

Category Periapical Periodontal
Other Names Tooth abscess, dentoalveolar abscess, apical abscess, endodontic abscess, and lesion of endodontic origin Gingival, pericoronal, lateral (periodontal) abscess
Epidemiology More common Less common
Area Associated with a nonviable dead tooth (e.g. pulpitis) Associated with a vital (living) tooth
Cause Tooth infection Gum infection

Dental Numbering

Classic dental numbering.
  • Adult (permanent) teeth identified by numbers
    • From the midline to the back of the mouth on each side, there is a central incisor, a lateral incisor, a canine, two premolars (bicuspids), and three molars
  • Children (non-permanent) teeth identified by letters
  • Common landmarks:
    • 1: Right upper wisdom
    • 8 & 9: Upper incisors
    • 16: Left upper wisdom
    • 17: Left lower wisdom
    • 24 & 25: Lower incisors
    • 32: Right lower wisdom
Anatomy of the periodontium. The crown of the tooth is covered by enamel (A). Dentin (B). The root of the tooth is covered by cementum. C, alveolar bone. D, subepithelial connective tissue. E, oral epithelium. F, free gingival margin. G, gingival sulcus. H, principal gingival fibers. I, alveolar crest fibers of the periodontal ligament (PDL). J, horizontal fibers of the PDL. K, oblique fibers of the PDL.

Clinical Features

Chronic apical periodontitis (with arrows).jpg
Abscess originating from a tooth that has spread to the buccal space. Above: deformation of the cheek on the second day. Below: deformation on the third day.
A decayed, broken down tooth, which has undergone pulpal necrosis. A periapical abscess (i.e. around the apex of the tooth root) has then formed and pus is draining into the mouth via an intraoral sinus (gumboil)
  • Acute pain, swelling, and mild tooth elevation
  • Exquisite sensitivity to percussion or chewing on the involved tooth
  • Swelling in surrounding gingiva, buccal, lingual or palatal regions
  • May see small white pustule (parulis) in gingival surface characteristic for abscesses

Differential Diagnosis

Dentoalveolar Injuries

Odontogenic Infections

Other

Evaluation

CT scan showing a large left tooth abscess with significant inflammation of fatty tissue under the skin.
  • Clinical evaluation
  • Radiographs

Management

  • Analgesia with NSAIDs, opioids and/or local anesthetics
  • Dental follow-up within 48 hrs.
  • Emergent oral surgeon follow-up if complicated (Ludwig's angina, Lemierre's syndrome)

Antibiotics

Treatment is broad and focused on polymicrobial infection

I&D

  • Can be performed in ED depending on provider comfort or by a dental consultant

Procedure

  • 11 or 12 blade stab incision
  • Hemostat blunt dissection +/- packing

See Also

References

  • ER Atlas