RESUMO
Statement of the Problem: Researchers always seek a new storage medium for avulsed teeth. Castor oil is a vegetable oil with several advantages such as antimicrobial and antioxidant properties, low toxicity, and glutathione preservation capability, low cost, and high availability
Purpose: The purpose of this study was to evaluate and compare the capacity of castor oil as a new storage medium in preserving the viability of periodontal ligament [PDL] cells compared to Hank's balanced salt solution [HBSS] and milk
Materials and Method: Forty freshly extracted human teeth were divided into 3 experimental and 2 control groups. The experimental teeth were stored dry for 30 min and then immersed for 45 min in one of the following media; castor oil, HBSS, and milk. The positive and negative control groups were exposed to 0 min and 2 h of dry time respectively with no immersion in any storage medium. The teeth were then treated with dispase grade II and collagenase and the number of viable PDL cells were counted. Data were analyzed using Kruskal- Wallis test
Results: The percentage of viable cells treated with castor oil, HBSS and milk counted immediately after removal from these media were 46.93, 51.02 and 55.10 % respectively. The statistical analysis revealed that the value for castor oil was significantly lower than HBSS and milk [p> 0.05]
Conclusion: Within the parameters of this study, it appears that castor oil cannot be served as an ideal medium for storage of avulsed tooth. More investigations under in vivo conditions are required to justify the results of this study
RESUMO
Statement of the Problem: Due to shortage of ICU beds in hospitals, knowing what kind of orthognathic surgery patients more need ICU care after surgery would be important for surgeons and hospitals to prevent unnecessary ICU bed reservation
Purpose: The aim of the present study was to determine what kinds of orthognathic surgery patients would benefit more from ICU care after surgery
Materials and Method: 210 patients who were admitted to Chamran Hospital, Shiraz, for bimaxillary orthognathic surgery [2008-2013] were reviewed based on whether they had been admitted to ICU or maxillofacial surgery ward. Operation time, sex, intraoperative Estimated Blood Loss [EBL], postoperative complications, ICU admission, and unwanted complications resulting from staying in ICU were assessed
Results: Of 210 patients undergoing bimaxillary orthognathic surgery, 59 patients [28.1%] were postoperatively admitted to the ICU and 151 in the maxillofacial ward [71.9%]. There was not statistically significant difference in age and sex between the two groups [p> 0.05]. The groups were significantly different in terms of operation time [p< 0.001]. Blood loss For ICU admitted patients was 600.00 +/- 293.621mL and for those who were hospitalized in the ward was 350.00 +/- 298.397 mL. Statistically significant differences were found between the two groups [p< 0.001]. Moreover, there was a direct linear correlation between operation time and intraoperative estimated blood loss and this relationship was statistically significant [r=0.42, p< 0.001]. Patients with maxillary impaction and setback plus mandibular advancement plus genioplasty were among the most ICU admitted patients [44%], while these patients were only 20% of all patients who were admitted to the ward. As a final point, the result illustrated that patients who were admitted to the ICU experienced more complication such as bleeding, postoperative nausea, and pain [p< 0.001]
Conclusion: Orthognathic surgery patients [maxillary impaction and setback plus mandibular advancement plus genioplasty] due to more intraoperative bleeding and postoperative nausea and pain would benefit from ICU admission after surgery