<unk> es may be difficult to distinguish from periapical<unk> es. Since the management of a<unk>  is different from a periapical<unk> , this differentiation is important to make (see Dental<unk> #Diagnostic approach) For example, root canal therapy is unnecessary and has no impact on pain in a<unk> . Classification There are four types of<unk> es that can involve the<unk>  tissues: # Gingival<unk> —a localized, purulent infection involves only the soft gum tissue near the marginal gingiva or the interdental papilla. #<unk> —a localized, purulent infection involving a greater dimension of the gum tissue, extending apically and adjacent to a<unk>  pocket. # Pericoronal<unk> —a localized, purulent infection within the gum tissue surrounding the crown of a partially or fully erupted tooth. Usually associated with an acute episode of pericoronitis around a partially erupted and impacted mandibular third molar (lower wisdom tooth). # combined<unk> /endodontic<unk>
Periodontal abscess
Dental abscess
Dental plaque
Gingival cyst
Posthitis
Oral mucocele
Salivary gland fistula
Cuffitis