Incidence Of Oral Cancer Research Articles

Oral Cancer Incidence Among Adult Males With Current or Former Use of Cigarettes or Smokeless Tobacco: Population-Based Study.

Tobacco use has been identified as a risk factor for oral cancer worldwide. However, relative oral cancer incidence among adults who smoke cigarettes, use smokeless tobacco products (ST), have transitioned from cigarettes to ST, quit cigarettes and/or ST ("quitters"), or never used tobacco has not been well studied. We aim to present population-based oral cancer incidence rates for adults who smoke cigarettes, use ST, are former smokers who now use ST, or quit. We estimated cross-sectional incidence rates and incidence rate ratios (IRRs) using data from statewide cancer registries (Colorado, Florida, North Carolina, and Texas) and population counts derived from national surveys using combined data from 2014-2017. A random-effect meta-analysis approach was used to summarize estimates among these groups, based on multiple imputation-based IRR estimates by state and age group while considering potential heterogeneity. A total of 19,536 oral cancer cases were identified among adult males 35 years and older in the study geographies and period. The oral cancer incidence rate among adults who smoke was significantly higher than the ST group (2.6 times higher, 95% CI 2.0-3.3, P<.001), 3.6 (95% CI 3.2-4.1, P<.001) times higher than the never users, and 2.4 (95% CI 1.8-3.1, P<.001) times higher compared to former smokers who now use ST. The IRR among the ST group relative to never users was 1.4 (95% CI 1.1-1.9, P=.02). The IRR between former smokers who now use ST and those who quit was 1.4 (95% CI 1.0-2.1, P=.08). Findings from this population-based study with a large number of oral cancer cases support significantly high oral cancer incidence among adults who smoke and a lower risk of oral cancer incidence among never users, quitters, users of ST, and former smokers who now use ST compared to cigarettes. Future studies with detailed control of tobacco history and other relevant confounders are needed to confirm these findings.

Assessing racial and ethnic disparities in time to surgery for patients with oral cavity cancers.

109 Background: Despite advances, challenges remain in the early detection and management of oral cancers. Studies have indicated that worse outcomes can be linked to disparities in sex, race, and ethnicity. Research indicates that despite a greater incidence of oral cancer among White patients, the five-year survival rate for Black patients is 52%, compared to 70% for their counterparts (1). While existing research focuses on racial and ethnic disparities in the time to diagnosis and prognosis, there is limited literature that discusses disparities in time to treat. As such, our study aims to evaluate potential racial, ethnic, and/or gender disparities in the time between diagnosis and surgery. Methods: We conducted a retrospective cohort study evaluating 185 patients with oral cancer at the University of Miami. Patient information was obtained from electronic medical records. We performed analysis of variance (ANOVA) with post hoc tests. Levene's test was used to assess the homogeneity of variances assumption. All statistical analyses were performed using SPSS version 26.0 (IBM Corp., Armonk, NY, USA), and p-values less than 0.05 were considered statistically significant. Results: The mean age at diagnosis was 68.50 years (SD =13.079 years), with the majority of patients (42%) diagnosed as Stage 1. Our cohort was 46% female and 54% male. 62% identified as White and Non-Hispanic/Latinx, 29% as White and Hispanic/Latinx, 6% as Black, and 3% as other race/ethnicities. We also assessed time to treat as a function of gender, race and ethnicity. We found there was no significant difference between men and women (x̄= 148 vs 136 days) in time to surgery. We also found no difference between Hispanic/Latinx patients and non Hispanic/Latinx patients (x̄= 163 vs 137 days). Although not statistically significant, there was a notable trend in the data that showed a longer time to surgery. Black patients had a much greater time to surgical intervention compared to White patients (x̄= 308 days vs 134 days) (Table). At the time of data cutoff, nearly 81% of patients were alive. Conclusions: In conclusion, despite lack of statistical significant, our study found higher trends to time to surgery between Hispanic/Latinx and non-Hispanic/Latinx, and even more so a much greater difference in time to surgery between Black and White patients. Further research is needed to elucidate these potential systematic, socio-economic or cultural barriers to ensure equitable access. 1. Surveillance, Epidemiology, and End Results (SEER) Program, National Cancer Institute. Days between diagnosis and surgery. Ethnicity Mean Standard Deviation N Black or African American 308.44 737.375 9 Other 20.33 .577 3 White 134.37 467.579 147 Total 142.08 481.112 159

Global burden of oral cancer in 2022 attributable to smokeless tobacco and areca nut consumption: a population attributable fraction analysis

Consuming products that contain smokeless tobacco or areca nut increases the risk of oral cancer. We aimed to estimate the burden of oral cancer attributable to smokeless tobacco or areca nut consumption globally and by type of smokeless tobacco or areca nut product in four major consuming countries. We calculated population attributable fractions (PAFs) using prevalence of current use of smokeless tobacco or areca nut products from national surveys and corresponding risks of oral cancer from the literature. We applied PAFs to national estimates of oral cancer incidence in 2022 from the Global Cancer Observatory's Cancer Today database to obtain cases attributable to smokeless tobacco or areca nut consumption. We modelled 95% uncertainty intervals (UIs) using Monte Carlo simulations. Globally, an estimated 120 200 (95% UI 115 300-124 300) cases of oral cancer diagnosed in 2022 were attributable to smokeless tobacco or areca nut consumption, accounting for 30·8% (95% UI 29·6-31·9) of all oral cancer cases (120 200 of 389 800). An estimated 77% of attributable cases were among male patients (92 600 cases, 95% UI 88 000-96 500) and 23% were among female patients (27 600 cases, 26 000-29 000). Regions with the highest PAFs were Melanesia, Micronesia, and Polynesia (78·6%, 95% UI 74·4-80·5), southcentral Asia (57·5%, 54·8-59·5), and southeastern Asia (19·8%, 19·0-20·6). Lower-middle-income countries represented 90·2% of the world total attributable cases (108 400 cases, 95% UI 103 400-112 200). Our findings suggest that one in three cases of oral cancer globally are attributable to smokeless tobacco or areca nut consumption, and could be prevented through smokeless tobacco and areca nut control. Global cancer control efforts must incorporate further measures to reduce smokeless tobacco and areca nut consumption in populations with the largest attributable burden. French National Cancer Institute.

Epidemiological Profile of Oral Cancer Patients Attending at B.P. Koirala Memorial Cancer Hospital, Chitwan, Nepal

Background: Oral cancer is one of the most prevalent and leading causes of mortality in certain regions, like South-Central Asia. The incidence of oral cancer in Nepal is also increasing. Oral cancer is preventable and treatable if diagnosed in an early stage. The study conducted at B.P. Koirala Memorial Cancer Hospital (BPKMCH) in Bharatpur, Nepal, was aimed at assessing the epidemiological profile of oral cancer patients attending BPKMCH. Methods: A descriptive cross-sectional study design was used to assess the epidemiological profile of oral cancer, and 50 patients were included in this study during January to July 2023. A semi-structured interview schedule was developed, which has 3 parts, viz., i. socio-demographic variables, ii. Lifestyle-related factors and iii. Clinical profile of oral cancer, to obtain the information from the respondents. Results: The study findings revealed that out of 50 majorities of respondents (88%) were male. According to the religion, most of them (84%) were Hindu, and likewise, according to ethnicity, about half of them (40%) belong to Madeshi, followed by 30% Brahmin/Chhetri. Similarly, most of the respondents (90%) were married. Regarding the exposure to risk factors, half of the respondents (50%) had habits of smoking consumption, More than half (68%) had the habit of tobacco consumption, near to half (40%) had the habit of Gudka consumption, and 68% had the habit of alcohol consumption. None of the respondents had the habits of oral sex or a family history of oral cancer. Similarly, about one-third (30%) of respondents had stage IV, followed by 28% stage II, 26% stage I, and only a few (14%) stages in III disease; all the oral cancer was OSCC. Concerning the treatment modalities, 36% of respondents had surgery, near to one quarter (20%) received chemotherapy, 10% received radiation therapy, and 30% of respondents had surgery with adjuvant therapy. Conclusion: The study found that the majority of oral cancer patients attending BPKMCH were between the ages of 30 and 45 and were predominantly male. Smoking, tobacco, and Gudka consumption are the main risk factors for oral cancer. The risk assessment approach and screening program should be focused on preventing oral cancer.

Head and neck cancer incidence is rising but the sociodemographic profile is unchanging: a population epidemiological study (2001–2020)

BackgroundIncreasing incidence of head and neck cancers (HNCs), driven by rising rates of oropharynx cancer (OPC), has been recorded around the world. This study examined trends in HNC and subsites (oral cavity, oropharynx, and larynx cancers) in Scotland focusing on assessing whether the sociodemographic profile has changed over the past 20 years.MethodsScottish Cancer Registry data (2001–2020) including European Age Standardised Rates of HNC and subsites were analysed in multivariate Poisson regression by age, sex, area-based socioeconomic status, and year of diagnosis (with interaction tests).ResultsOverall HNC and oral cavity cancer (OCC) incidence remained relatively stable. OPC incidence rates increased by 78%, while larynx cancer incidence declined by 27%. Over time, there were marginal shifts to a slightly older age profile for HNC (p = 0.001) and OCC (p = 0.001), but no changes in OPC (p = 0.86) and larynx cancer (p = 0.29). No shift in the sex profile of HNC was observed except for minor increases in female OCC rates (p = 0.001), and the socioeconomic distribution remained unchanged across all HNC subsites.ConclusionsThere have been no significant changes in the sociodemographic profile of HNC in Scotland over the last 20 years, despite the changing trends in HNCs with dramatically increasing incidence rates in OPC and reducing larynx cancer. This information can be used to target or stratify HNC prevention and control.

Causal inference of the effect of plasma proteins on the incidence of oral cancer: two-sample Mendelian randomization

ObjectiveThis study is aimed to investigate the causal relationship between plasma proteins and oral cancer risk using two-sample MR (Mendelian randomization).MethodsSummary-level GWAS (genome-wide association study) data on plasma protein levels (4,907 proteins) and oral cancer (6,034 cases, 6,585 controls) of European ancestry were utilized. SNPs (single nucleotide polymorphisms) associated with proteins at genome-wide significance were selected as instrumental variables. Multiple MR methods including IVW (inverse-variance weighted), MR-Egger, weighted median, simple mode and weighted mode were applied to estimate causal effects. Sensitivity analyses were conducted.ResultsEight plasma proteins (CCDC167, MID2, NDRG4, PEAR1, PIAS4, RCAN1, SAMHD1 and TNMD) were identified to have significant causal associations with oral cancer risk. NDRG4, RCAN1, SAMHD1 and TNMD were associated with increased oral cancer risk while PEAR1 was associated with decreased risk. The causal estimates were consistent across different methods. Sensitivity analyses indicated the results were robust without significant heterogeneity or horizontal pleiotropy. Multivariable MR adjusting for smoking, alcohol intake and periodontal disease showed CCDC167, MID2, NDRG4, PEAR1, PIAS4 and SAMHD1 still had direct effects on oral cancer.ConclusionThis two-sample MR study provides evidence for potentially causal effects of several plasma proteins on oral cancer risk. The identified proteins may serve as biomarkers and shed light on biological mechanisms underlying oral carcinogenesis. Further research is warranted to validate and extend these findings.

French Dentists’ knowledge, attitudes and practices toward oral cancer detection: A national survey

BackgroundFrance is ranked 6th in Europe in terms of oral cancer incidence. Dental surgeons are on the front line in examining the oral mucosa, but little is known about the knowledge, attitudes and practices of French dental surgeons with respect to lesions suspected of malignancy. MethodsAn online survey including 18 self-administered questions was widely shared on social media using major networks of French dentists. Items included socio-demographic characteristics of the respondents, their self-assessed knowledge, screening practices and training on oral cancer detection and care. ResultsA total of 676 dental surgeons participated in this survey. The vast majority, 92.8 %, were general dental surgeons, 83.9 % had a private practice and 49.1 % had less than 5 years of dental experience. Almost 55 % declared that they did not conduct systematic examinations of the oral mucosa and 45 % reported that they did conduct such examinations. In-hospital practice, lower patient age, dental surgeon experience, and specialty were all positively associated with systematic examination of the oral mucosa. Conversely, absence of a patient complaint, absence of an obvious lesion, lack of time, and lack of training/skills were all negatively associated. DiscussionThis is the first survey to analyze the practices of French dental surgeons in oral cancer screening. Only half of the respondents, the best trained, performed systematic oral mucosa examinations which objectively help to early detect mucosal cancer lesions. To improve oral cancer early detection, we recommend mandatory screening training programs for all dental students and dental surgeons.

Innovative Progress: Artificial Intelligence in the Realm of Oral Cancer

In recent years, there has been a notable increase in the global incidence of oral cancer, leading to significant morbidity and mortality, especially when diagnosed at advanced stages. The integration: In recent years, there has been a notable increase in the global incidence of oral cancer, leading to significant morbidity and mortality, especially when diagnosed at advanced stages. The integration of technology holds great promise for early detection and diagnosis, facilitating improved patient management for clinicians. The emergence of artificial intelligence (AI) presents a potential breakthrough in oral cancer screening, as it can meticulously analyze vast datasets from various imaging modalities, offering valuable support in the field of oncology. This review focuses on a spectrum of AI techniques utilized for early detection and diagnosis of oral cancer. Additionally, AI techniques may be employed for the effective treatment of oral cancer. Using the abundance of information acquired, this article provides an in-depth overview and discussion of AI's value and benefits in oral cancer screening, early detection, disease prediction, and therapy, among other areas. Furthermore, it identifies present limits and forecasts the hopeful future of AI in oral cancer research.

Current advances of oral cancer in Taiwan.

To provide updated statistics of oral cancer incidence and mortality in Taiwan, and to describe recent developments for oral cancer control to reduce oral cancer incidence and mortality. The Taiwan Cancer Registry Annual Report 2023, the Taiwan Cancer Registry Online Interactive Search System, and the 2023 Health Promotion Administration Annual Report are consulted and summarized. A literature search using PubMed was also conducted to identify Taiwan oral cancer control-related studies. Taiwan, with a long history of areca/betel quid chewing, has battled with oral cancer for decades. In 2021, the male lip and oral cavity cancer incidence is 29.77 (per 100,000 persons) and mortality is 11.25. Over these years, the male chewing prevalence was reduced to 6.2% in 2018. Taiwan has a sustained national oral cancer screening programme provided to high-risk groups biennially. Although the age-standardized incidence rates have been slowly decreasing since 2009, due to Taiwan's ageing population, the actual oral cancer burden is still stringent. The collaboration of multi-ministries and agencies on promoting areca nut and betel quid control, improving oral cancer awareness, and delivering cancer care remains essential to prevent oral cancer and reduce oral cancer deaths.

Oral mucosal lesions triage via YOLOv7 models

Background/purposeThe global incidence of lip and oral cavity cancer continues to rise, necessitating improved early detection methods. This study leverages the capabilities of computer vision and deep learning to enhance the early detection and classification of oral mucosal lesions. MethodsA dataset initially consisting of 6903 white-light macroscopic images collected from 2006 to 2013 was expanded to over 50,000 images to train the YOLOv7 deep learning model. Lesions were categorized into three referral grades: benign (green), potentially malignant (yellow), and malignant (red), facilitating efficient triage. ResultsThe YOLOv7 models, particularly the YOLOv7-E6, demonstrated high precision and recall across all lesion categories. The YOLOv7-D6 model excelled at identifying malignant lesions with notable precision, recall, and F1 scores. Enhancements, including the integration of coordinate attention in the YOLOv7-D6-CA model, significantly improved the accuracy of lesion classification. ConclusionThe study underscores the robust comparison of various YOLOv7 model configurations in the classification to triage oral lesions. The overall results highlight the potential of deep learning models to contribute to the early detection of oral cancers, offering valuable tools for both clinical settings and remote screening applications.

Oral cancer in India.

To describe the epidemiological status of oral cancer (OC) in India along with updates on risk factors, advances and gaps in preventive measures, treatment, costs of care and monitoring. Two national estimates of incidence and mortality were cited, one for 2016 by the Global Burden of Disease India Study and one based on projections for 2020 by GLOBOCAN. The National Cancer Registry Project provided local and regional incidence and trends using data from 2012-2016. Scientific literature, reports of the NCRP, the IARC and government press releases were also consulted. Tobacco and areca nut habits are the major risk factors for OC in India. In the 1980s, intervention studies on oral screening, awareness generation and habit cessation in rural areas reduced tobacco use and oral leukoplakia. Lately, adoption of the tobacco control law and mass media communications have resulted in decreased tobacco use. However, the increasing popularity of highly carcinogenic tobacco products containing areca nut, with evasion of their bans, is increasing OC incidence. Despite advances in care, there is growing incidence of OC, persisting poor awareness about the need to quit tobacco/areca nut/alcohol use and go for screening. Major efforts are needed to implement preventive activities.

Impact of histopathological parameters in prognosis of oral squamous cell carcinoma

AbstractObjectiveSquamous cell carcinomas comprise approximately 90% of all oral malignancies. There is a wide geographical variation in the incidence of oral cancer, with South and South East Asia (SSEA) accounting for almost two third of new cases. The prognosis of oral cancer is influenced by a vast array of factors including demographic, clinical, histopathological and molecular factors. The objective this review is to analyse the impact of histopathological features assessed in hematoxylin and eosin stained sections on the prognosis of OSCC.Materials and MethodsMedline and Scopus data base search was performed in order to identify related articles on histopathological parameters in predicting prognosis of oral squamous cell carcinoma. The primary emphasis is on the studies conducted in SSEA, with an accompanying comparison of their findings with those from research conducted in other parts of the world.ResultsIt has been shown that the number of studies conducted in SSEA is not proportionate to the high prevalence of Oral Cancer in the region. There is no significant difference between the findings from SSEA compared to the rest of the world. It is clearly shown that most histopathological parameters can be accurately used to predict nodal metastasis and prognosis.ConclusionsHistopathological parameters can be used reliably in planning treatment of Oral cancer. Clinicians should combine clinical and histopathological parameters in drawing treatment plan for Oral Cancer.

The association between XPD rs13181 and rs1799793 polymorphism and oral cancer risk: evidence from a meta-analysis

ObjectiveSingle nucleotide polymorphisms (SNPs) are common in genes and can lead to dysregulation of gene expression in tissues, which can affect carcinogenesis. Many studies reporting the association between xeroderma pigmentosum group D (XPD) polymorphisms of rs13181 and rs1799793 with oral cancer risk, but with conflicting and inconclusive results.MethodsWe performed a comprehensive and systematic search through the PubMed, Elsevier, Web of science, and Embase databases, twelve studies were included in the meta-analysis to determine whether XPD rs13181 and rs1799793 polymorphism contributed to the risk of oral cancer.ResultsThe pooled date indicated a significant association between the rs13181 polymorphism and oral cancer risk for the allele comparison model (odds ratio, OR = 1.60, 95% confidence intervals, CI = 1.09–2.35, P = 0.02), the dominant model (OR = 1.74, 95% CI = 1.08–2.82, P = 0.02), and the heterozygote model (OR = 1.59, 95% CI = 1.02–2.49, P = 0.04). For the XPD rs1799793 polymorphism, it is not associated with the incidence of oral cancer under any model. Subgroup analyses based on ethnicity indicated that the rs13181 polymorphism increased the risk of oral cancer among Asians according to the allele comparison model (OR = 1.97, 95% CI = 1.10–3.51, P = 0.02), the dominant model (OR = 2.35, 95% CI = 1.25–4.44, P = 0.008), the heterozygote model (OR = 2.05, 95% CI = 1.15–3.66, P = 0.01), and the homozygous model (OR = 2.47, 95% CI = 1.06–5.76, P = 0.04).ConclusionOur meta-analysis suggests a positive correlation between XPD rs13181polymorphism and the development of oral cancer among Asians, but a negative correlation among Caucasians populations.

Prevalence of Premalignant Conditions and Their Transformation Into Oral Cancers: A Clinical Study.

The purpose of this study is to look at how often premalignant oral diseases are among patients who visit a tertiary care center, as well as how often these problems progress to become mouth malignancies. Between 2017 and 2022, 200 patients at a tertiary care facility who were identified with premalignant oral lesions had their medical records retrospectively examined. Information on lesion features, histological results, and demographics was gathered. Statistical analysis was used to determine the prevalence of premalignant oral lesions and the rate at which these lesions turned into oral malignancies, with a significance threshold of P < 0.05. The research population's mean age was 55 years (SD ± 10), with a 65% male preponderance. The most prevalent premalignant lesions were leukoplakia (45%), erythroplakia (30%), and oral submucous fibrosis (25%). Remarkably, during follow-up, 40% of patients showed development of premalignant lesions into mouth malignancies. Based on statistical analysis, there were significant correlations (P < 0.05) between dysplastic alterations, age, tobacco use, and the development of oral malignancies from premalignant lesions. In conclusion, this study highlights the need of early diagnosis and focused therapies in tertiary care settings by offering important insights into the occurrence and evolution of premalignant oral lesions. The results provide important information that may be used to create screening programs and preventive measures that will lessen the incidence of oral cancer.

Prevalence and incidence of oral cancer and pre-cancerous lesions in indigenous populations: a systematic review protocol.

This review will determine the prevalence and incidence of oral cancer and pre-cancerous lesions in indigenous populations. There are approximately 476 million indigenous individuals worldwide. Oral cancer affected over 350,000 people globally in 2018, with approximately 80% of cases occurring in the indigenous population. Moreover, the incidence of pre-cancerous lesions is high in this population, accounting for 48.3%. Limited evidence exists regarding the burden of oral cancer among indigenous populations despite research on oral health disparities in this group. Studies on the burden of oral cancer and pre-cancerous lesions in indigenous groups, considering rates, ratios (prevalence or mortality), or survival proportions, will be considered for inclusion. There will be no limitations on study design, language, age, gender, or geography. We will exclude studies that only identify, diagnose, or screen oral cancer and pre-cancerous lesions without mentioning prevalence and incidence. This review will follow the JBI methodology for systematic reviews of prevalence and incidence. Databases to be searched will include MEDLINE (Ovid), Embase (Ovid), CINAHL (EBSCOhost), Cochrane Central Register of Controlled Trials, Scopus, and Dentistry and Oral Sciences Source (EBSCOhost). ProQuest Dissertations and Theses, OAIster, International Association for Dental Research conference abstracts, Google Scholar, government reports, and cancer registry reports will also be screened for unpublished studies. Two reviewers will independently screen articles, and data will be extracted using a customized form. Narrative data synthesis will be conducted and, where appropriate, meta-analysis will be performed. Methodological quality will be assessed using JBI's critical appraisal tool for prevalence studies. PROSPERO CRD42023402858.

Feasibility, Reliability, and Effectiveness of Oral cancer screening in South Asia and Southeast Asian countries: A systematic review and Meta-analysis.

The incidence of oral cancer is significantly high in South Asia and Southeast Asia. Organized screening is an effective approach to early detection. The aim of this systematic review and meta-analysis was to evaluate the reliability, diagnostic accuracy, and effectiveness of visual oral screening by community health workers (CHWs) in identifying oral cancer/oral potentially malignant disorders (OPMDs) in this region. We conducted a bibliographic search in PubMed, Scopus, the gray literature of Google Scholar, ProQuest dissertations, and additional manual searches. Twelve articles were included for qualitative synthesis and six for meta-analysis. Pooled sensitivity, specificity, diagnostic odds ratio (DOR), and forest plot analysis were performed. Meta-analysis showed CHWs identified 8% (n = 6365) as suspicious and 92% (n = 74,140) as normal. The diagnostic accuracy of visual oral screening by CHWs showed a sensitivity of 75% (CI: 74-76) and specificity of 97% (CI: 97-97) in the detection of OPMDs/oral cancer. Forest plots were obtained using a random effects model (DOR: 24.52 (CI: 22.65-26.55)) and SAUC: 0.96 (SE = 0.05). Oral visual examination by trained CHWs can be utilized for community screenings to detect oral cancer early. This approach can be used in primary healthcare to triage patients for further referral and management.

Oral cancer incidence rate is associated with access to dental care: City and statewide analyses.

Access to dental care may affect diagnosis of oral squamous cell carcinoma (OSCC). We tested whether the incidence rate of OSCC is higher in regions with less dental care access in the city of Chicago and state of Illinois. Ecological cohort. Population, outpatients, and inpatients. We extracted 5-year averages of the state-wide county-level and city-level OSCC incidence rates from 2015 to 2019 from the Illinois Department of Public Health. Dental care access information was also collected for each county for the same period, as well as the percentage of people that had ≥1 visit to a dentist in the previous year in Chicago. Multivariate Poisson regression was used to investigate the relationship between county-level access to dental care (and city-level dentist visits) and OSCC incidence rate, controlling for confounders, with additional flexible semiparametric models for confirmatory sensitivity analysis. In Illinois, higher 5-year incidence rate of OSCC was significantly associated with low access to dental care by county (IRR = 0.96, 95% CI 0.91, 0.98). Southern/southwestern counties had higher incidence rates of OSCC (15.5%-28.4%) and the lowest rates of dental care access (47.5%-69.2%) compared to northern counties (10.3%-15% and 55.4%-80.6%, respectively). In Chicago, people with more dentist visits had a reduced chance of being diagnosed with OSCC (IRR = 0.97, 95% CI 0.91, 0.99), consistent with state-wide analyses. OSCC incidence rate is closely associated with poor local dental healthcare access in a major state and urban city. Increasing dental access could improve cancer outcomes via improved oral health and earlier detection.

Precursor Lesions, Overdiagnosis, and Oral Cancer: A Critical Review.

Despite the profession placing great emphasis on oral potentially malignant disorders (OPMDs) as a gateway for early recognition and consequently better outcomes for oral cancer, the death rates for lip and oral cavity cancer have remained stagnant for three decades. Evidence shows that only a small fraction of oral cancers are in fact preceded by OPMDs, and that most OPMDs have an annual transformation rate of less than 1%. As OPMDs encompass a very heterogeneous group of oral conditions, it could be argued that only patients with oral mucosal diseases bearing a substantial risk of malignant transformation warrant close surveillance and treatment, these include proliferative leukoplakia, erythroplakia, non-homogeneous leukoplakia, as well as diseases presenting with severe dysplasia at biopsy. In this narrative review, I discuss the intricate epidemiology of the malignancies that we colloquially refer to as oral cancer, explore the limitations of focusing on OPMDs to reduce the incidence and mortality of oral cavity cancer, and argue that a may-be cancer label represents overdiagnosis for most OPMDs.

Oral Cancer Management is not just Treatment! But also, how early Pre-cancerous Lesions are Diagnosed &amp; Treated!!

Oral Cancer (OC) or squamous cell carcinoma of the oral cavity accounts for approximately 3% of all cancers worldwide, with increased incidence in developing countries. The use of tobacco is directly associated with approximately 80% of oral cancers, especially in older men over 40 years of age. As nearly one-third of the Indian population over 15 years consume smokeless tobacco in one or the other forms, a recent increase has been observed in OC incidence among women and young adults. Lately, the sexual behaviors of young &amp; homosexuals have resulted in the emergence of oropharyngeal cancers due to infection with HPV 16. About 60% of oral cancer cases in India have a five-year survival rate, and this can be improved to 70% to 90% by mere early detection in stages I and II and with various treatment modalities. Despite the well-known benefits of oral cancer screening for the whole population in developing countries remains controversial. It is imperative to address the cultural barriers and societal norms, which limit the acceptability and participation in screening programs in India and many developing countries. This unique challenge of increasing OC morbidity in India and developing countries requires horizontal integration of the health systems with new services focused on cancer control, which gives the best chance for long-term survival, improved outcomes, and affordable care! This article is based on the author’s experience of overseeing 1 case of early detection and 2 cases of delayed diagnosis, outcomes and relevant literature review, and current guidelines for the management of OC.

Trends in Oral Tongue Cancer Incidence in the US

Oral tongue cancer (OTC) incidence has increased rapidly among young (<50 years) non-Hispanic White individuals in the US during the past 2 decades; however, it is unknown if age-associated trajectories have persisted. To examine US trends in OTC incidence and project future case burden. This cross-sectional analysis of OTC incidence trends used the US Cancer Statistics Public Use Database, which covers approximately 98% of the US population, and included individuals with an OTC diagnosis reported to US cancer registries between January 1, 2001, and December 31, 2019. Sex, race and ethnicity, and age. Estimated average annual percentage change in OTC incidence from 2001 to 2019. Given the substantial incidence rate increases among non-Hispanic White individuals compared with those of racial and ethnic minority groups, subsequent analyses were restricted to non-Hispanic White individuals. Forecasted OTC incidence trends and case burden among non-Hispanic White individuals to 2034. There were 58 661 new cases of OTC identified between 2001 and 2019. Male individuals (57.6%), non-Hispanic White individuals (83.7%), those aged 60 years or older (58.0%), and individuals with localized stage disease at diagnosis (62.7%) comprised most cases. OTC incidence increased across all age, sex, and racial and ethnic groups, with marked increases observed among non-Hispanic White individuals (2.9% per year; 95% CI, 2.2%-3.7%). Increases among female individuals aged 50 to 59 years were most notable and significantly outpaced increases among younger non-Hispanic White female individuals (4.8% per year [95% CI, 4.1%-5.4%] vs 3.3% per year [95% CI, 2.7%-3.8%]). While all non-Hispanic White birth cohorts from 1925 to 1980 saw sustained increases, rates stabilized among female individuals born after 1980. Should trends continue, the burden of new OTC cases among non-Hispanic White individuals in the US is projected to shift more toward older individuals (from 33.1% to 49.3% among individuals aged 70 years or older) and female individuals (86% case increase vs 62% among male individuals). The results of this cross-sectional study suggest that the period of rapidly increasing OTC incidence among younger non-Hispanic White female individuals in the US is tempering and giving way to greater increases among older female individuals, suggesting a birth cohort effect may have been associated with previously observed trends. Recent increases among non-Hispanic White individuals 50 years or older of both sexes have matched or outpaced younger age groups. Continuing increases among older individuals, particularly female individuals, may be associated with a shift in the OTC patient profile over time.