BACKGROUND: Eagle syndrome occurs when elongated styloid process or ossification of the stylohyoid ligament interfere with the surrounding anatomical structures giving rise to various symptoms. Watt W. Eagle identified two types: stylo-hyoid classic syndrome and stylo-carotid artery syndrome. The aim of this systematic review of the literature is to evaluate correlations between Eagle syndrome and traumatic events or teeth extractions. METHODS: out of 294 articles, the final study allowed the identification of 13 studies focusing on traumatic events. Out of 342 articles, the final study allowed the analysis of two studies regarding extractive dental events. RESULTS: 13 articles showed correlations between the onset of symptoms in Eagle syndrome and traumatic events and highlighted two possibilities: traumatic event could fracture the already elongated styloid process or calcified stylohyoid ligament; trauma itself triggers the pathophysiological mechanisms that lead to lengthening of styloid process or calcification of stylohyoid ligament and therefore the typical symptoms. The only two case reports concerning Eagle syndrome symptoms after extractive dental events describe the onset of classic type. CONCLUSIONS: The analyzed articles confirm correlation between traumatic event and onset of typical symptoms of Eagle syndrome. There is not enough literature linking extractive dental events to Eagle syndrome. TRIAL REGISTRATION: CRD42020185176.
BACKGROUND: Eagle syndrome occurs when elongated styloid process or ossification of the stylohyoid ligament interfere with the surrounding anatomical structures giving rise to various symptoms. Watt W. Eagle identified two types: stylo-hyoid classic syndrome and stylo-carotid artery syndrome. The aim of this systematic review of the literature is to evaluate correlations between Eagle syndrome and traumatic events or teeth extractions. METHODS: out of 294 articles, the final study allowed the identification of 13 studies focusing on traumatic events. Out of 342 articles, the final study allowed the analysis of two studies regarding extractive dental events. RESULTS: 13 articles showed correlations between the onset of symptoms in Eagle syndrome and traumatic events and highlighted two possibilities: traumatic event could fracture the already elongated styloid process or calcified stylohyoid ligament; trauma itself triggers the pathophysiological mechanisms that lead to lengthening of styloid process or calcification of stylohyoid ligament and therefore the typical symptoms. The only two case reports concerning Eagle syndrome symptoms after extractive dental events describe the onset of classic type. CONCLUSIONS: The analyzed articles confirm correlation between traumatic event and onset of typical symptoms of Eagle syndrome. There is not enough literature linking extractive dental events to Eagle syndrome. TRIAL REGISTRATION: CRD42020185176.
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