Treatment of odontogenic infections, such as drainage of submucosal abscesses, should be carried out by the dental practitioner. However, when an odontogenic infection deteriorates into a deep neck abscess, treatment should be carried out by the oral maxillofacial surgeon. Based on two cases, this article describes the clinical presentation, course, and necessary treatment of a deep neck abscess. It also points out that timely recognition of the disease is key in treatment. In any case of delay, there is a possibility for fast deterioration by complications, such as airway obstruction, development of descending necrotizing mediastinitis, or sepsis. Oral health practitioners play an important role in early identification of a deep neck abscess. This article proposes recommendations for dentists when to suspect a deep neck infection, which could be useful in quick and adequate referral to an OMF surgeon.