Читать книгу Handbook of Oral Pathology and Oral Medicine - S. R. Prabhu - Страница 141

 Non‐vital tooth in most cases

 Involved tooth is tender to percussion

 Lower molars commonly involved

 In the initial stages there is no swelling, only intense, throbbing pain

 Gingiva related to the tooth is red and tender

 In established abscess buccal or labial painful gingival swellings (Figure 3.3a)

 Palatal swelling for maxillary molars is common

 Trismus due to pain and swelling

 Cervical lymphadenopathy is common

 Early dental abscesses, within the first 10 days, may not show any radiographical features

 Mild thickening of apical PDL, loss of lamina dura and loss of trabecular bone become evident as abscess advances (Figure 3.3b)

 Discharge of pus may occur in established abscess; pain subsides after the discharge of pus

 Complications include cellulitis/Ludwig's angina or osteomyelitis

 Life‐threatening complications include thrombophlebitis and septicaemia

 Complete blood count for leucocytosis