Open Journal of Stomatology, 2017, 7, 25-34 http://www.scirp.org/journal/ojst ISSN Online: 2160-8717 ISSN Print: 2160-8709 DOI: 10.4236/ojst.2017.71002 January 6, 2017 Severity Score as a Prognostic Factor for Management of Infections of Odontogenic Origin, a Study of 100 Cases Roman Mirochnik 1* , Shareef Araidy 1* , Victoria Yaffe 1 , Imad Abu El-Naaj 1,2 1 Oral and Maxillofacial Surgery Department, “Baruch Padhe” Medical Center, Poria, Israel 2 Bar Ilan University, Israel Abstract Purpose: The main objective of the current study is to determine whether it is possible to correlate the longevity of the hospitalization period (LOS) to effi- cacy of surgical treatment regime and severity scoring. Materials and Me- thods: A total of 100 patients met our inclusion criteria. All patient records, including results of hematologic and biochemical parameters, were recorded. The patients were later subcategorized further according to a severity score (“Low, Moderate, Severe”) of their main facial space involvement. The main analysis of the study is a regression analysis model; all the variables (sex, age, CRP, white blood cell count, fever, space, and etiology) were stratified ac- cording to the overall hospital stay. A crosstab comparison was performed next; the variables were categorized and combined with hospital stay, and then entered in Spearman’s rank correlation coefficient or Spearman’s rho (ρ), 2-tailed (t) Test, and regression equation. The significance level was set at p < 0.05. Statistical analyses were conducted using SPSS version 23. Results: The most prevalent anatomical space infection was vestibular space abscess or cel- lulitis 33%, followed by an infraorbital space abscess or cellulitis 17%. Most commonly involved teeth are lower molars with 43% of the total, upper cen- tral sixth with 20% and upper molars with 10%; mandibular origin was found to be the cause in 54%. The regression equation showed no linear relation between CRP with the overall hospital stay (p > 0.05). No systemic tempera- ture values were found to be correlated to any space involved or LOS. Log- rank chi-square effect tests indicated only a significant effect of severity, p = 0.00016. The “Moderate & Severe” group compared to the “Low” group had a longer median LOS, 4.5 (2 to 8) vs 3 (1 to 8) respectively. Conclusion: The findings of this study have shown severity scoring to be statistically significant parameter in LOS prediction. *The first and second authors have contributed equally to this manuscript. How to cite this paper: Mirochnik, R., Araidy, S., Yaffe, V. and El-Naaj, I.A. (2017) Severity Score as a Prognostic Factor for Management of Infections of Odontogenic Origin, a Study of 100 Cases. Open Journal of Stomatology, 7, 25-34. http://dx.doi.org/10.4236/ojst.2017.71002 Received: September 17, 2016 Accepted: January 3, 2017 Published: January 6, 2017 Copyright © 2017 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access