Pneumomediastinum after Third Molar Extraction: Case Report, Physiopathology, and Literature Review

Table 5

Incidence of emphysema symptoms and their distributions, as reported in the literature from January 2010 to April 2020.

	Data	Occurrences in the 26 cases reported in the literature, n (%)
Symptoms	Crepitations	25 (96%)
	Swelling	21 (80%)
	Dyspnea	9 (34%)
	Pyrexia	3 (11%)
	Epigastric pain	2 (7%)
	Chest pain	3 (11%)
	Neck pain	4 (15%)
	Facial pain	2 (7%)
	Dysphagia	5 (19%)
	Odynophagia	3 (11%)
	Diplopia	2 (7%)
Air distribution	Periorbital	9 (34%)
	Facial	24 (92%)
	Cervical	23(88%)
	Pneumomediastinum	20 (77%)
	Pneumothorax	3 (11%)
	Pneumopericardium	2 (7%)