[Clinical value of oral repair membrane and β-tricalcium phosphate in the treatment of the postoperative bone defect of jaw cyst].

Objective: This study aims to evaluate the clinical effect of oral repair membrane and β-tricalcium phosphate (β-TCP) on the treatment of jaw cyst.

Methods: A retrospective analysis was performed on 81 cases of jaw cysts, and clinical data were collected for the comparison of traditional surgical curettage (group A, 27 cases), biofilm covering bone wounds after curettage (group B, 27 cases), and β-TCP filling combined with biofilm covering.

Results: No recurrence occurred in 81 patients, and no significant difference in preoperative CT value among the three groups (P<0.

[Clinical value of quantitative parameters by spectral CT in parotid gland tumor].

Objective: This study aimed to investigate the value of normalized iodine concentration (NIC), spectral attenuation curve slope (SACS), area under curve (AUC), and iodine concentration difference (ICD) generated from spectral CT in the assessment of parotid gland tumors.

Methods: Ninety-two patients with pathologically confirmed parotid gland tumors underwent arterial phase- and venous phase-enhanced CT in spectral CT. The patients were divided into the pleomor-phic adenoma group (group A), Warthin tumor group (group B), basal cell tumor group (group C), and malignant tumor group (group D).

[Clinical value of vacuum sealing drainage in the treatment of oral and maxillofacial space infection].

Objective: This study aims to observe the efficacy of vacuum sealing drainage (VSD) by continuous negative pressure drainage and saline irrigation in the treatment of oral and maxillofacial space infection.

Methods: Retrospective analysis was conducted on 116 cases of maxillofacial space infection, and clinical data were collected to compare the therapeutic effects of routine incision with drainage treatment (traditional treatment group, 58 cases) and VSD treatment (VSD group, 58 cases).

Results: The length of hospital stay, white blood cell count, scar length, frequency of dressing change, and pain degree of patients in the VSD group were all lower than those in the traditional treatment group.