(1) Objectives: This systematic review and meta-analysis aimed to summarize current evidence regarding the prognostic role of perineural invasion (PNI) in patients with oral squamous cell carcinoma (OSCC). (2) Methods: We searched Cochrane Central, ProQuest, PubMed, Scopus, Science Direct, and Web of Science, using relevant keywords to identify eligible articles. Two independent reviewers conducted two-stage screening, data extraction, and quality assessment. The risk of bias was assessed using the Newcastle–Ottawa Scale (NOS) criteria. All analyses were performed using comprehensive meta-analysis (CMA; version 3.3.070) software. (3) Results: The study included 101 published articles encompassing 26,062 patients. The pooled analyses showed that PNI was associated with significantly worse overall survival (OS; HR = 1.45, 95% CI: 1.32–1.58; p < 0.001), worse disease-specific survival (DSS; HR = 1.87, 95% CI: 1.65–2.12; p < 0.001), and worse disease-free survival (DFS; HR = 1.87, 95% CI: 1.65–2.12; p < 0.001). Similarly, both local recurrence-free survival (LRFS) and regional recurrence-free survival (RRFS) were worse in patients with PNI (HR = 2.31, 95% CI: 1.72–3.10, p < 0.001; and HR = 2.04, 95% CI: 1.51–2.74, p < 0.001), respectively. The random-effect estimate of three studies demonstrated that the presence of PNI was associated with worse failure-free survival (FFS; HR = 2.59, 95% CI: 1.12–5.98, p < 0.001). (4) Conclusions: The current evidence suggests that PNI can be used as an independent predictor of the prognosis for patients with OSCC. The presence of PNI was associated with worse OS, DFS, DSS, FFS, and with recurrence. Asian patients and patients with extra-tumoral or peripheral PNI invasion were associated with worse prognosis.

Background: COVID-19, caused by SARS-CoV-2, has impacted the world in an unprecedented way since December 2019. SARS-CoV-2 was found in the saliva of patients, and entry points for the virus may have been through the numerous angiotensin-converting enzyme 2 receptors in the oral cavity. Oral manifestations of COVID-19 could contribute to the burden of oral disease. Objective: To determine the prevalence of oral manifestations of COVID-19 in patients and their association with disease severity. Methods: Interviews were conducted with adult participants diagnosed with COVID-19 between October 2021 and March 2022 to document their demographic and health status data, symptoms, and the presence of oral manifestations of COVID-19. Chi-square and the Fisher’s exact test were used to compare data on the presence or absence of oral manifestations of COVID-19. Results: Of 195 participants interviewed, 33% were 18 to 24 years old, 33% were 25 to 34 years old, and 75% were female. A total of 57 (29%) had oral manifestations; the most common were taste disorders (60%), xerostomia (42%), and oral ulcers (11%). There was no relationship between the severity of COVID-19 and the presence of the oral manifestations. Conclusion: Oral manifestations of COVID-19 were common among female patients and linked to certain general COVID-19 symptoms regarding frequency and extent.

Purpose: The data available on the incidence and mortality rates of head and neck cancer types (HNCs) in the Gulf Cooperation Council countries (GCC) have relied on global trends and covered only certain cancer sites, types or certain age groups. This study aimed to assess the incidence and mortality rates of head and neck cancer (HNCs) within the Gulf Cooperation Council (GCC) countries, providing insights into their geographic variability in 2020. Methods: Prediction of the magnitude of the disease to 2040 was explored based on demographic projections. Estimates of incidence and mortality and the population projections were extracted from the Global Cancer Observatory (GLOBOCAN) database and the United Nations Department of Economic and Social Affairs respectively for the time frame 2020 to 2040. Additionally, we analyzed the distribution of cases and deaths by age and sex for both time periods. Results: The analysis indicates varying patterns in HNC rates across GCC countries in 2020, with Oman and Saudi Arabia carrying the highest burden. Projections for 2040 reveal a substantial increase in new HNC cases and related deaths, particularly in Qatar, UAE, and Bahrain. Furthermore, incidence rates are predicted to rise significantly for individuals aged 50 and older, while remaining relatively stable for those under 50. With regards to sex, males generally exhibit higher rates, except in Qatar. Conclusion: HNC burden is anticipated to rise significantly in the GCC, with variations per age, sex and geographical location. By 2040, a 2-3-fold increase in HNCs in the GCC is anticipated, emphasizing the need for focused public health strategies to address this rising health challenge.

(1) Background: Human papillomavirus (HPV) infection is significantly associated with oropharyngeal squamous cell carcinoma (HPV-OPSCC), which is one of the fastest-growing cancer incidences globally. Dental practitioners play a crucial role in the primary and secondary prevention of HPV-OPSCC. There is little known about dental students’ awareness regarding HPV-OPSCC and HPV vaccination, as well as their intention to promote ‘primordial prevention’ among their patients. HPV vaccine, and the extent of their professional responsibilities. (2) Methods: This cross-sectional study was conducted in the western region of Saudi Arabia and involved undergraduate dental students (n = 688) from six public and private dental schools. Participants were requested to complete a sequential-section anonymous online survey, with 257 successfully completing all sections of the questionnaire. The association between participant characteristics and HPV-OPSCC, HPV vaccination awareness ratings, and perceived engagement in prevention were analyzed using ANOVA and chi-squared testing. A binary logistic regression analysis was conducted to examine the variables linked to these outcomes. (3) Results: Generally, the overall level of awareness of HPV-OPSCC and HPV vaccination was acceptable, with an average score of 53.44 ± 29.3 out of 100. However, a significant knowledge gap was observed, with 53% of respondents being unaware of the common sites for HPV-OPSCC and 63.8% being uninformed of the appropriate age for HPV vaccination. Females and those with a prior history of sexually transmitted diseases (STDs) had considerably higher levels of HPV vaccination knowledge (p < 0.05). The participants showed a favorable attitude towards their responsibility of informing patients about HPV-OPSCC and advocating HPV immunization. (4) Conclusions: This study underscores the need to enhance dental students’ understanding of HPV-OPSCC and HPV immunization, enabling them to effectively engage in primary and secondary preventative efforts against HPV-OPSCC.

(1) Background: COVID-19 has had psychological impacts, particularly anxiety, depression, anger, and suicidal ideation, on the world’s populace, including young persons who were prone to mental health disorders even before the pandemic. We described the psychological impacts of COVID-19 among emerging adults aged 18–30 years in Saudi Arabia. (2) Methods: A cross-sectional survey was done among a randomly sampled population in Saudi Arabia between July 2020 and May 2021 using the DSM-5 Self-rated Level 1 Cross-Cutting Symptom Measure and Ask Suicide Questionnaire. Logistic regression was used to assess participant characteristics associated with reporting symptoms of mental disorders under each of the 13 domains that would warrant further investigation. (3) Results: Approximately, 91% of participants experienced different mental health symptoms; these participants are more likely to be young, female students, those who had a history of being diagnosed with a mental disorder, and those diagnosed or treated for COVID-19. (4) Conclusion: This study strongly showed an increased prevalence of mental health symptoms among young persons during the COVID-19 pandemic. Addressing the mental health burden among young persons in time using simple, self-administered screening tools linked to interventions will prevent dire consequences in the future.

Objective: This study is designed to evaluate the accuracy of ChatGPT models (3.5, 4.0 and 4 Turbo) in answering multiple-choice questions (MCQs) related to oral and maxillofacial pathology and oral radiology, thus, providing reliable information in the field of dentistry. Methods: A set of 136 validated MCQs varies between knowledge and cognitive were used in the study. The questions covered different topics related to odontogenic cysts, tumours and bone lesions. Difficulty of the questions was evaluated by two MCQ-item writing, board-certified reviewers in the fields. The questions were entered into Chat GPT-3.5, ChatGPT-4 and ChatGPT-4 Turbo independently. Ten months later, ChatGPT was updated to newer versions, and the same set of questions was entered to evaluate the consistency of the ChatGPT responses . Results: Fifty-six percent of the total questions were related to oral radiology, and 66% were categorised as easy. The dataset consisted primarily of questions testing knowledge (87%), with only 13% of questions assessing cognitive skills. ChatGPT-4 Turbo exhibited the highest accuracy, answering 90% of questions correctly, followed by ChatGPT-4.0 with 85% accuracy and ChatGPT-3.5 with 78% accuracy. Only 98 questions (72%) were correctly answered by the three models. Ten months later, the unpaid ChatGPT version showed a significant improvement in accuracy, while the paid versions maintained consistent performance over time with no significant differences. Conclusion: This study found that ChatGPT-4 Turbo outperformed Models 4 and 3.5 in accuracy and speed. While the unpaid version showed significant improvement over time, the paid versions remained consistently accurate. The findings suggest that, while AI can be a helpful tool in dental education, limitations persist that must be addressed, particularly in terms of complex cognitive skills and image-based questions. This study provides valuable insights into the capabilities and potential improvements of AI applications in dental education.