Oro-facial infections are common pathologies comprising a substantial health concern in the pediatric population. Incorrect or late treatment may lead to serious and possibly lifethreatening complications. The aim of this study is to analyze variables associated with prolonged length of hospital stays (LOS) due to odontogenic infections in children. Study design: Data was collected from the records of patients (age <15 years) hospitalized due to odontogenic infections at Poriya Medical Center during the period of 1/2010-12/2015. Patients with oro-facial infections originating from other organs were excluded from the study as well as children with underlying systemic medical conditions that may affect recovery. Results: A total of 411 patients (mean age 6.5 ± 2 years) were included in this study, with 58.4% being male. There were significantly higher (p < 0.05) values of white blood cell (WBC) counts in patients with >3 days LOS. Patients with >3 days LOS were also significantly older (8.4 vs. 6.3 years). There were no significant differences in sex distribution or other clinical or laboratory parameters between the groups. Conclusion: Older child age and higher WBC counts on admission are indicators for prolonged LOS.