Journal of Oral and Maxillofacial Pathology最新文献

Introduction: The study aims to investigate the antifungal efficacy of albedo extract of Punica grantum on candida albicans by evaluating the inhibitory capacity of alcoholic albedo extracts by disc diffusion method and by comparing the antifungal efficacy of alcoholic extract of albedo with clotrimazole and ethanol.

Methods: Using a conventional disc diffusion method, the effectiveness of Punica Granatum albedo extract against Candida albicans was assessed and evaluated depending on the presence or absence of inhibition zones, as well as the average diameter of inhibition zones. Albedo extract of Punica granatum serial dilutions were prepared ranging from 1%, 5%, 10%, 15%, 20% and 25% and its antifungal efficacy was tested against Candida albicans in comparison with clotrimazole and ethanol.

Results: When compared to clotrimazole, the albedo extract of punica granatum showed significant anticandidal activity. The mean zone of inhibition of extract was recorded at 27.6 mm whereas clotrimazole was 21.6 mm and no zone of inhibition was recorded for ethanol. Statistically significant p value 0.015 was recorded within the different dilutions of albedo extract of Punica grantum which is less than 0.05.

Conclusion: The present investigation found that Punica Granatum albedo extract had greater potent antifungal activity when compared to clotrimazole and ethanol.

Background: Oral squamous cell carcinoma (OSCC) accounts for nearly 90% of oral malignancies and represents a major global health care problem. It is often preceded by oral potentially malignant disorders (OPMD). Although regular clinical examination forms the backbone for oral cancer screening, subtle lesions go unnoticed and there is a need for more sensitive and specific molecular biomarkers in mass screening of population. Salivary proteomics offer an attractive alternative to serum and tissue testing.

Aims: To find the diagnostic utility of salivary interleukin-6 (IL-6) in the differential diagnosis of OSCC, OPMD from healthy controls.

Study design: In vivo study.

Methods: After approval from the Institutional Review Board, unstimulated whole saliva was collected from 90 subjects, 30 in each group of OSCC, OPMD and controls after ethical clearance. Salivary IL-6 was measured by ELISA, and the results were statistically analysed.

Results: Significant difference in salivary IL-6 was seen between OSCC, OPMD and controls. Receiver operating characteristic curve analysis showed the highest area under a curve of 0.982 in distinguishing OSCC from controls. It showed a sensitivity of 71% and specificity of 100% at a cut-off value of 33.4 pg/mL (P = 0.000). Moderately differentiated OSCC (MDSCC) showed a significant increase in salivary IL-6 concentration compared to well-differentiated OSCC (WDSCC).

Conclusion: Results of the present study showed strong predictive power of salivary IL-6 in distinguishing OSCC from controls. Its levels also increased with tumor aggressiveness from WDSCC to MDSCC. Thus, salivary IL-6 could have a diagnostic and/or prognostic significance in identifying high-risk groups in mass screening of the population.

Neuroendocrine tumours (NETs) primarily affect the lungs and larynx. Primary neuroendocrine carcinomas (NECs) rarely occur in the oral cavity. The classification of these tumours is ambiguous; however, the literature acknowledges their aggressiveness. Merkel cell carcinoma (MCC) is rare and more common in the skin but could occur intraorally. MCC and NECs are aggressive neoplasms and recommend intensive treatment. In this case report, a 22-year-old female presented with an ulceroinfiltrative lesion in the left buccal mucosa of the cheek, which was diagnosed as primary NEC in the oral cavity. This patient underwent wide local lesion excision of oral cavity mass, ipsilateral selective neck node dissection of levels 1-4 and postoperative chemotherapy. This aggressive tumour type requires large local excisions with margins like Merkel cell skin carcinomas. To our knowledge, this is the youngest oral cavity primary neuroendocrine cancer patient to date in the literature.

Objectives: Grading of oral epithelial dysplasia (OED) has been plagued with intra-observer and inter-observer variations. To overcome this subjectivity, a more objective digital image analysis is obligatory using computer-aided software. The use of open-source software like QuPath, which is a new bio-image evaluation software program, may fulfil this growing need in virtual pathology. This study used the QuPath software for automatic analysis of morphometric parameters in hematoxylin and eosin (H and E)-stained digital images of oral epithelial dysplasia.

Methodology: 150 H and E digital images of varying grades of OED captured under 40x magnification were processed using QuPath software for automatic analysis of cellular and nuclear parameters.

Results: The parameters that showed statistical significance included nuclear hematoxylin OD, nuclear eosin OD, cellular hematoxylin OD, cellular eosin OD, cytoplasm hematoxylin OD, and cytoplasmic eosin OD (P < 0.05), while none of the other parameters showed statistically significant differences. A prediction accuracy of 76%, 74%, and 70% for mild, moderate, and severe dysplasia was obtained, respectively.

Conclusion: The quantitative results outlined in this paper are encouraging to indicate that the use of this technique may improve the diagnostic reliability of OED. Morphometric analysis of OED using Qupath software can be fast and reproducible and can be quantitated automatically.

Background: There are still certain gaps in the research that need to be filled despite the fact that numerous studies have looked into the transformation of odontogenic cysts into neoplastic lesions. To identify pertinent research that had been published and to synthesise the available data and provide an overview of the current body of knowledge, this review also sought to do so.

Materials and methods: Adopting the Preferred Reporting Items of Systematic Reviews and Meta-Analyses (PRISMA) guidelines, a search strategy was implemented across several online databases to search for relevant articles as per the defined selection criterion.

Results: After the search strategy was complete, 31 studies were chosen. Men tended to have more cancer than women. Swelling and discomfort were the primary pathology-related complaints. Although two cases were not detailed, radiologically, well-defined and poorly defined borders were reported in 18 and 11 participants, respectively. Squamous cell carcinoma with good differentiation (n = 12) was the most common cancer kind. More than 74% of patients were still living 6 months to 10 years following follow-up, four (12.90%) experienced recurrences and/or metastases and two (6.45%) experienced a disease-related mortality between 2 months and a year.

Conclusion: Prompt surgical follow-ups and cautious excision of odontogenic cysts are essential to avoiding neoplastic change and recurrence. Future research is required to look at possible reasons why odontogenic cysts can convert neoplastically.

Background: Endless ink and pixel space have been spent to validate the use of cheiloscopy classification systems in the field of identification. It is becoming evident that lip-print patterns may provide indications about an individual's gender, race, occupation, habits, blood type, and paternity. Over the course of time, much data have been collected on a substantial population in this field. In the present study, we strive to see how well a noble total lip scoring (TLS) system works in identifying a person's gender among the College of Dentistry students. We also quantified the total groove score (TGS) and compared it with each quadrant for better authentication of the set study design.

Materials and method: A cross-sectional descriptive study was conducted among 60 dental students (30 males and 30 females), with an age range of 18-30 years. Lip prints were recorded using the writing pad method and subsequently digitalized by capturing the images using Adobe Photoshop CS 6 Extended Version, counted and summed up, quadrant-wise, in both upper and lower lips. The TLS and TGS between males and females were statistically calculated using the Jamovi project.

Results: The mean value for TLS for males (n = 402; SD ± 92.1) is higher than that for females (n = 348; SD ± 86.1). The correlation matrix applying a non-parametric test for non-continuous data using Spearman's ratio inferred a statistically significant correlation (-0.354) with a P-value of 0.005 for TLS, whereas a correlation (-0.162) of TGS with gender was not so significant with a P-value of 0.217.

Conclusion: Our study proved the uniqueness of applying TLS as a novel approach to gender identification. The study revealed that males had a statistically higher lip score than females.

Clinical significance/future implications: Being unique, our study inferred the importance of TLS, which needs to be explored in detail for applying, evaluating, and validating its accuracy in forensic research that can help for errorless investigations as full-proof evidence in court.

Objective: Squamous cell carcinoma (SCC) represents about 90% of all oral malignancies. The study aimed to assess the involvement of the submandibular salivary gland (SMG) in oral SCC (OSCC) patients and the need for SMG excision.

Materials and methods: Demographics, clinical information and staging of the 210 patients undergoing surgery for OSCC were obtained from the department records. The histopathological slides were retrospectively reviewed. The nodal status was also verified with the histopathology reports. Frequency distribution, Chi-square association, ordinal logistic regression analysis and Kaplan-Meier analysis were performed.

Results: SMG was excised in 171 patients. Five patients had SMG involvement. Buccal mucosa (BM) and gingivobuccal sulcus had a greater risk of level IB metastases (P < 0.01). Pattern 3 and pattern 4 of invasion had a higher risk of level IB metastases (P = 0.04). Depth of invasion (DOI) >4 mm was associated with level IB lymph node (LN) involvement (P = 0.0001). DOI >4 mm to 8 mm had 3.7 times the risk and a DOI >8 mm to 12 mm had 5 times the risk of level IB metastases. Pattern of invasion (POI), tumour budding and DOI >4 mm were significant prognosticators for patient survival.

Conclusion: Histologically, patients may be categorised as 'high risk': those with an increased risk of level IB LN involvement and 'low risk': those at low risk for level IB involvement with the help of POI, tumour budding and DOI as risk factors. In low-risk patients, SMG may be spared and the level IB LNs are dissected. High-risk patients may be chosen as candidates for SMG transfer or excision based on the extent of LN involvement.

Background: Oral squamous cell carcinoma (OSCC) poses a significant global health burden, particularly prevalent in regions like India. Despite advancements in diagnostics, early detection of OSCC remains challenging, necessitating novel diagnostic modalities. Toll-like receptors (TLRs) and their polymorphisms have emerged as potential contributors to OSCC pathogenesis.

Methods: This retrospective case-control study examined 120 individuals, including 60 OSCC cases and 60 healthy controls. Genotyping of TLR3 single-nucleotide polymorphisms (SNPs) rs3775290 and rs3775291 was conducted using TaqMan allelic discrimination real-time polymerase chain reaction. Functional consequence analysis and TLR3 expression profiling were performed to elucidate their role in OSCC pathogenesis.

Results: Significant associations were observed between TLR3 SNPs and OSCC susceptibility, particularly at loci rs3775290 and rs3775291. Functional consequence analysis revealed pathogenic mutations in TLR3 genes, potentially affecting protein structure and function. TLR3 overexpression was detected in OSCC lesions, implicating its involvement in disease progression.

Conclusion: TLR3 polymorphisms play a pivotal role in OSCC pathogenesis, offering potential biomarkers for diagnosis and prognosis. Targeting TLR3-mediated pathways may hold promise in personalised OSCC management. Further research is warranted to elucidate the precise mechanisms underlying TLR3-mediated carcinogenesis in OSCC, facilitating the development of tailored therapeutic strategies.