Negative pressure sealing drainage technology combined with adequate irrigation for oral and maxillofacial space infection can improve serum inflammatory factor levels.

OBJECTIVE: This study aimed to assess the clinical efficacy of combining vacuum sealing drainage with full irrigation in managing oral and maxillofacial space infections and its impact on serum inflammatory factor levels in patients. METHODS: We retrospectively analyzed data from 110 patients with oral and maxillofacial space infections treated at our hospital between February 2018 and March 2022. Among them, 50 patients underwent simple negative pressure closed drainage (control group), while 60 patients received combined full irrigation using 0.9% sodium chloride solution (observation group). We compared clinical treatment outcomes, treatment duration, antibiotic usage duration, quality of life scores, Visual Analogue Scale (VAS) scores, changes in serum IL-6 and TNF-α levels before and after treatment, and the incidence of complications between the two groups. Additionally, we conducted an analysis of risk factors influencing patient prognosis. RESULTS: The observation group exhibited significantly superior treatment efficacy compared to the control group (P < 0.05). Treatment and antibiotic usage durations were shorter in the observation group (P < 0.05). VAS scores after treatment were significantly lower in the observation group (P < 0.05). Serum inflammatory factors improved significantly in both groups after treatment, with a more substantial improvement observed in the observation group (P < 0.05). Post-treatment quality of life was significantly higher, and the incidence of complications was lower in the observation group (P < 0.05). The choice of treatment method independently influenced patient prognosis (P < 0.05). CONCLUSION: Combining vacuum sealing drainage with full irrigation is an effective approach for managing oral and maxillofacial space infections. This treatment leads to improved clinical symptoms, reduced inflammatory responses, decreased pain intensity, and enhanced quality of life while maintaining safety.

Properties of strong anisotropic a-axis single-crystal fiber with an applied electric field.

The effect of an applied electric field on the properties of strongly anisotropic a-axis single-crystal fiber is studied theoretically. We solve the electromagnetic field equations for strongly anisotropic a-axis single-crystal fiber and numerically analyze the mode characteristics of the fiber that conducts only the zeroth-order elementary mode. We discuss the effects that an applied electric field has on the refractive index anisotropy and the mode characteristics of the fiber that conducts only the zeroth-order elementary mode.