Treatment of recurrent herpes of the lower lip skin region with photodynamic therapy and photobiomodulation: case report

The aim of the present study is to describe a case report on the treatment of recurrent herpes using Photodynamic therapy (PDT) and Photobiomodulation as the treatments of choice. A 21-year-old white man checked in in the clinic for evaluation of vesicles arranged in the lower lip skin region. The clinical diagnosis was recurrent herpes and, for treatment, PDT was chosen, using 0.1% methylene blue as a photosensitizer and a pre-irradiation time of five minutes. The Therapy XT laser was used, with a wavelength of 660 nm, power of 100 mW, in a spot area of 0.028 cm², using 4 J energy per point, having been applied on 4 points, one in the center of the lesion and three on its laterals, so that it involved the entire extension of the lesion, totaling 16 J. After 24 hours after the application of the PDT, the patient returned for photobiomodulation with a low-power laser with a wavelength of 660 nm, power of 100 mW, using energy of 1 J per point, for 10 s, being applied on 4 points, totaling 4 J. It was possible to observe complete healing after 10 days of treatment, and the patient remains in follow-up for eight months without any recurrences.

Pleomorphic adenoma of buccal mucosa: a case report and review of the literature

BACKGROUND

Salivary gland neoplasms are rare, accounting for 3% to 5% of all head and neck tumors, and involvement of the minor salivary glands is uncommon. Pleomorphic adenoma (PA) is the most common benign neoplasm, which mainly affects the parotid gland. However, involvement of the cheek mucosa is very rare.

OBJECTIVE

This study reports a case of PA in the cheek mucosa. In addition, the etiopathogenesis, clinical and morphological features and differential diagnoses of PA are discussed, emphasizing the importance of knowledge about the characteristics of this tumor for a correct diagnosis.

CASE REPORT

A 50-year-old woman presented with a nodular lesion of endophytic growth in the left cheek mucosa. The lesion was small and well-delimited and had a normal mucosa color and intact surface. An excisional biopsy of the lesion was performed, and the diagnosis was PA.

CONCLUSION

Although the occurrence of PA in the minor salivary glands of the cheek mucosa is uncommon, the early establishment of a correct diagnosis and initiation of appropriate treatment are important because they permit effective management of the condition and improvement in the prognosis of patients.

Antifungal activity of linalool in cases of Candida spp. isolated from individuals with oral candidiasis

This study analyzed the antifungal activity of phytoconstituents from linalool on Candida spp. strains, in vitro, isolated from patients with clinical diagnoses of oral candidiasis associated with the use of a dental prosthesis. Biological samples were collected from 12 patients using complete dentures or removable partial dentures and who presented mucous with diffuse erythematous or stippled features, indicating a clinical diagnosis of candidiasis. To identify fungal colonies of the genus Candida, samples were plated onto CHROMagar Candida®. The antifungal activity of linalool, a monoterpene unsaturated constituent of basil oil, was performed using the broth microdilution technique. Then, the minimum inhibitory concentration (MIC), the two subsequent stronger concentrations and the positive controls were subcultured on Sabouraud Dextrose Agar plates to determine the minimum fungicidal concentration (MFC). The experiments were performed in triplicate and nystatin was used as a positive control in all tests. Diagnoses of oral candidiasis were verified in eight patients (66.6%) and the most prevalent fungal species was Candida albicans (37.5%), followed by Candida krusei (25.0%); and Candida tropicalis (4.2%). The best antifungal activity of linalool was observed on Candida tropicalis (MIC = 500 mg/mL), followed by Candida albicans (MIC = 1.000 mg/mL), and Candida krusei (MIC = 2.000 mg/mL).Under the study conditions and based on the results obtained, it can be concluded that the Candida strains tested were susceptible to linalool.

Prototyping for the treatment of late zygomatic-orbital fracture: A case report

INTRODUCTION

Zygomatic-orbital complex fractures are the most common facial traumas that can result in severe esthetic and functional sequelae. Surgical correction of these fractures is a delicate approach and prototyping is an excellent tool to facilitate this procedure.

PRESENTATION OF CASE

A 27-year-old man, a motorcycle accident victim, was hospitalized in the intensive care unit for 30days. After this period, facial fractures were treated surgically, leaving sequelae such as enophthalmos, dystopia and loss of projection of the zygomatic arch. A second intervention was planned after one year for reconstruction of the orbit with the help of prototyping. Better outcomes were achieved than in the first intervention.

DISCUSSION

This report permits to compare the result of conventional surgery and the use of a prototype in the same patient. Noticeably better outcomes were achieved with the second approach. Prototyping made the surgical procedure more predictable and reduced operative time because of the possibility of using preshaped titanium plates.

CONCLUSIONS

Prototyping was found to be an excellent option to overcome the deficiencies of the conventional technique, recovering the functional and esthetic characteristics of the patient's face and ensuring a markedly satisfactory outcome.