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The aim of this study was to evaluate whether combined administration of olive leaf extract (OLE) with standard antifungal therapy—nystatin (NYS) or miconazole (MIC) could be a more efficient alternative in reducing the number of Candida colonies, the presence of oral signs and symptoms and changes in salivary IL-17A level compared to standard therapy alone. The study included 59 subjects with a positive microbiological Candida colony number greater than 600 CFU/mL and at least one oral sign or symptom present. Subjects were randomly divided into four groups depending on applied therapy: OLE + NYS group (n = 15), OLE + MIC group (n = 15), NYS group (n = 14), MIC group (n = 15). Therapy duration and clinical monitoring were standardized across all groups. There was no significant difference between the tested groups in Candida spp. colony number or salivary IL-17A levels. In the OLE + NYS group, a significant increase in salivation rate was observed, while a significant decrease in tongue burning was reported in the OLE + MIC group. A significant reduction in burning of the oral mucosa and tongue was observed in the MIC group. No significant differences were found in other clinical signs or symptoms among treatment groups. OLE, as an adjunct to standard antifungal therapy, did not significantly reduce Candida spp. colony number or salivary IL-17A levels. However, in combination with NYS it increased salivation rate, while in combination with miconazole, it significantly decreased tongue burning. Both symptoms are common clinical findings in oral Candida-related disease and suggest that OLE may have supportive potential in the clinical management of these conditions. Further research is needed to explore its potential therapeutic benefits on oral health.

Objectives: The aim of this study was to determine the antifungal activity of olive leaf extract (OLE) and the synergistic effect of standard antifungal therapy and OLE against clinical oral Candida species’ isolates. Materials and Method: The susceptibility of 60 clinical isolates of the Candida species (36 C. albicans, 16 C. krusei, 5 C. glabrata and 3 C. tropicalis) was tested with four concentrations of OLE (60 µg/µL, 120 µg/µL, 240 µg/µL and 333 µg/µL) and the synergistic effect of standard antifungal therapy and OLE (miconazole (MIC) + 333 µg/µL OLE and nystatin (NYS) + 333 µg/µL OLE). The antimicrobial activity was tested using the disk diffusion method. Results: All concentrations (60 µg/µL, 120 µg/µL, 240 µg/µL and 333 µg/µL) of OLE showed a statistically significant effect on all Candida species compared to the control (DMSO) except for the lowest concentration (60 µg/µL) tested on C. glabrata. There was a dose-dependent effect of OLE on tested samples. Concentrations of 240 µg/µL and 333 µg/µL showed statistically significant higher antifungal activity compared to the lowest concentration of 60 µg/µL. No statistically significant synergistic effect of OLE and standard antifungal therapy was found compared with standard therapy alone. Conclusions: The results of this study present the significant antimicrobial effect of OLE against all tested Candida species except for the lowest concentration on C. glabrata. Increasing the concentration of OLE also increases its effect on Candida species. This indicates the possible potential effect of OLE in the treatment of Candida-related oral diseases.

Childhood diseases are a continuous source of interest in all areas of general and dental medicine. Congenital, developmental, and hereditary diseases may either be present upon birth or appear in early childhood. Developmental anomalies, although often asymptomatic, may become grounds for different infections. Furthermore, they can indicate certain systemic disorders. Childhood age frequently brings about benign tumors and different types of traumatic lesions to the oral mucosa. Traumatic lesions can be caused by chemical, mechanical, or thermal injury. Mucocele and ranula are, by definition, traumatic injuries of the salivary glands or their ducts. Recurrent aphthous lesions are the most common type of ulcerations in childhood, and their etiology is considered multifactorial. Oral mucosal lesions in children require different treatment approaches depending on etiological factors and clinical presentation. Clinicians should have adequate knowledge of oral anatomy in order to diagnose and treat pathological conditions.

Biological therapy of inflammatory bowel disease (IBD) carries an increased risk for the development of opportunistic infections due to immunomodulation. The aim of this study was to determine the prevalence and types of oral infections in IBD patients treated with biological (anti-TNF-α and anti-integrin-α4β7) and conventional medication protocols. The study included 20 IBD patients receiving anti-TNF-α therapy, 20 IBD patients receiving anti-integrin-α4β7 therapy and 20 IBD patients without immunomodulatory therapy. Participants completed questionnaires on medical information, oral lesions and symptoms. For each patient, clinical examination and a salivary flow rate test were performed, followed by a swab of the oral mucosa. The swab samples were cultured to identify Candida spp. and oral bacteria. No bacterial opportunistic infections were detected. Candidiasis was detected in four participants, with no significant difference between groups (p = 0.765). Hyposalivation was most common in the anti-TNF-α group, with a significant difference between groups (p = 0.036). There were no significant differences between groups in self-reported oral mucosal lesions and symptoms (p > 0.05), or in the distribution of oral mucosal lesions (p > 0.05). This study suggests that IBD patients receiving biological therapy are at no greater risk of developing oral opportunistic infections than IBD patients not receiving immunomodulatory therapy.

The aim of this study was to determine the levels of proinflammatory tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) cytokines in whole unstimulated saliva in subjects with burning mouth syndrome (BMS) before and after treatment with low-level laser therapy (LLLT). BMS is characterized by a continuous, painful burning sensation in a clinically normal-appearing oral mucosa. A sample consisting of 40 consecutive subjects was selected on a voluntary basis from the pool of patients who presented for diagnosis and treatment of BMS at the Oral Medicine Unit of the Faculty of Medicine of the University of Rijeka. For determination of salivary levels of TNF-α and IL-6, ELISA (Sigma Immunochemicals, St. Louis, MO, USA) was performed to determine the salivary levels of TNF-α and IL-6. After 4 weeks of LLLT, the salivary levels of TNF-α and IL-6 in the experimental group decreased significantly ( p  < 0.001). There was no significant difference in the experimental group regarding visual analogue scale.

Oral infections caused by Candida species are becoming more common, which may be related to an increase in the number of immunologically compromised patients as well as favorable conditions in the oral cavity that often include removable prosthetic appliances. The purpose of this study was to determine the presence of a particular Candida species in patients with PMMA and Cr-Co prosthetic appliances, as well as the salivary flow rate, and oral signs and symptoms. This investigation included a total of 120 subjects with different kinds of removable dentures. A sample of concentrated oral rinse was collected from all subjects in order to detect Candida colonization and identify the Candida species, a quantum of salivation was measured, and subjects were examined clinically. Candida spp. was predominant among the subjects who were denture wearers (p < 0.0001). In all subjects, the most frequently detected species was C.albicans. A statistically significant difference was found between the prevalence of C.albicans (p < 0.001) and C.krusei (p < 0.001) in denture wearers. Subjects with PMMA-based removable prosthetic appliances mostly demonstrated a significant decrease in salivation (p < 0.001), an increase in burning sensations (p < 0.001), and dry mouth (p < 0.001) compared to the subjects who wore partial dentures with Co–Cr metallic frameworks. Red oral lesions were more frequently found among the subjects with partial dentures with Co–Cr metallic frameworks (p < 0.001). Regardless of the material used for the denture, patients must be regularly checked by their dentists in order to prevent the development of oral lesions.

Biological therapy of inflammatory bowel disease (IBD) carries an increased risk for the development of opportunistic infections due to immunomodulation. The aim of this study was to determine the prevalence and types of oral infections in IBD patients treated with biological (anti-TNF-α and anti-integrin-α4β7) and conventional medication protocols. The study included 20 IBD patients receiving anti-TNF-α therapy, 20 IBD patients receiving anti-integrin-α4β7 therapy and 20 IBD patients without immunomodulatory therapy. Participants completed questionnaires on medical information, oral lesions and symptoms. For each patient, clinical examination and a salivary flow rate test were performed, followed by a swab of the oral mucosa. The swab samples were cultured to identify Candida spp. and oral bacteria. No bacterial opportunistic infections were detected. Candidiasis was detected in four participants, with no significant difference between groups (p = 0.765). Hyposalivation was most common in the anti-TNF-α group, with a significant difference between groups (p = 0.036). There were no significant differences between groups in self-reported oral mucosal lesions and symptoms (p > 0.05), or in the distribution of oral mucosal lesions (p > 0.05). This study suggests that IBD patients receiving biological therapy are at no greater risk of developing oral opportunistic infections than IBD patients not receiving immunomodulatory therapy.

Periodontitis was found to be significantly related to obesity as well as the number of missing teeth and oral hygiene. However, the studies addressing these relationships often included smokers and diabetics, and none was performed in Eastern European patients. The aim of this cross-sectional study was to investigate associations between obesity and periodontitis, oral hygiene, and tooth loss in a sample of non-smoking Croatian subjects aged 31-75 years. A total of 320 patients were recruited by convenient sampling at the Dental Clinic, Clinical Hospital Centre in Rijeka, Croatia. Periodontal examination and data on tooth loss were completed in 292 subjects and each participant completed a structured written questionnaire with questions regarding oral hygiene, education, height, and weight. Periodontitis was categorized as early, moderate and advanced. In multiple regression analysis, periodontitis was used as predictor variable, and BMI, oral hygiene, tooth loss, and education level were used as dependent variables. Use of interdental brushes/flossing and number of missing teeth correlated significantly with BMI, but the same could not be proven for periodontitis and frequency of tooth brushing. However, logistic regression proved that the subset of obese, poorly educated women aged 36-55 years were 5-6 times more likely to develop severe forms of periodontal disease. Obesity was associated with tooth loss, oral hygiene, and education level in the investigated group. BMI could not be correlated with severity of periodontal disease, except in poorly educated women aged 36-55 years.