For detecting mouth cavity cancers, it must pay attention on the high risk factors group (above 45 years old, alcoholism, smoking and betel using); Abnormal feeling in the mouth (bleeding of tooth root, or red, white piece appeared, persistently exist in mouth). When the obove mentioned signs exist more than two weeks after infecting antibiotics and using antiflammatory medicines. To affirm the diagnosis, biopsy must be made in suspected case; Toludine blue dying must be made to detect early the abnormalties.
Mouth Neoplasms ; Risk factors ; Age Factors ; Epidemiology

Background: Betel quid chewing has been a major risk factor for oral cancer (OC) in southern China. This study aimed to analyze the scientific publications on the relationship between betel quid chewing and OC and construct a model to quantitatively and qualitatively evaluate pertinent publications from 1998 to 2017. Methods: The publications from 1998 to 2017 were retrieved from the Web of Science Core Collection database. Microsoft Excel, Thomson Data Analyzer, VOSviewer, and CiteSpace software were used to analyze the publication outcomes, journals, countries/regions, institutions, authors, research areas, and research frontiers. Results: A total of 788 publications on the relationship between betel quid chewing and OC published until October 25, 2017, were identified. The top 4 related journals were Journal of Oral Pathology Medicine, Oral Oncology, Plos One, and International Journal of Cancer. The top five countries engaged in related research included China, India, the United States, the United Kingdom, and Malaysia. The corresponding disciplines, such as oncology, oral surgery, pathology, environmental and occupational health, and toxicology, were mainly concentrated in three disciplines. The subject terms squamous cell carcinoma, OC, betel quid, expression, oral submucous fibrosis, India, and p53 ranked first among research hotspots. The burst terms squamous cell carcinoma, OC, betel quid, and expression ranked first in research frontiers. Conclusions Research in this area emphasized hotspots such as squamous cell carcinoma, OC, oral submucosal fibrosis, betel quid, and tobacco. The annual number of publications steadily decreased from 1998 to 2017, with a lack of a systematic study from interdisciplinary perspectives, inadequate pertinent journals, limited regions with the practice of betel quid chewing, and insufficient participation of researchers, which indicate that as the prevalence of OC increases, particularly in China, research in this area warrants further expansion.
Areca ; adverse effects ; Bibliometrics ; China ; epidemiology ; Humans ; Malaysia ; epidemiology ; Mouth Neoplasms ; epidemiology ; Risk Factors ; United Kingdom ; epidemiology

OBJECTIVE: Primary mucosal melanoma of nasal and oral cavity is a rare tumor with a poor prognosis. This study aims to summarize the clinical features and survival status and then to evaluate the prognostic factors. METHOD: Clinical data of 66 patients with mucosal melanoma in nasal and oral cavity treated from Jan. 1980 to Jan. 2005, were retrospectively reviewed. All patients received the surgery. The following parameters: gender, age, primary location, tumor size, presence of ulcer, presence of pigment aggravation, lymph node metastasis, treatment mode and initially treatment outcome were investigated to evaluate their potential impact on survival. Kaplan-Meier method and Log-rank test were used for survival analysis. Cox proportional hazards regression was used for multivariate analysis. RESULT: The primary locations were nasal cavity (34 cases), oral cavity (23 cases) and paranasal sinuses (9 cases). All patients received surgery. Thirty-seven patients received post-operative adjuvant treatments. Of which, 12 received adjuvant chemotherapy. 8 received adjuvant immunotherapy, 5 received adjuvant chemotherapy and immunotherapy, 8 received adjuvant radiotherapy and 4 received adjuvant radiotherapy and chemotherapy. Local recurrence, lymph node metastasis or distant metastasis appeared in 15 patients at 6 months after the primary treatment. The distant metastasis rate was 15.2% (10/66). The average survival time was 77.9 months, the median survival time was 33.7 months. The 3-year and 5-year overall survival rates were 41.4% and 31.1% respectively. Multivariate analysis showed that tumor size, lymph node metastasis and initially treatment outcome were significant prognostic factors for overall survival. CONCLUSION The prognosis of mucosal melanoma in nasal and oral cavity is poor. Tumor size, lymph node metastasis, initially treatment outcome are independent prognostic factors for overall survival. The effect of post-operative adjuvant treatments is not clear, and further studies are needed.
Adolescent ; Adult ; Aged ; Child ; Female ; Humans ; Melanoma ; diagnosis ; epidemiology ; Middle Aged ; Mouth Mucosa ; Mouth Neoplasms ; diagnosis ; epidemiology ; Nose Neoplasms ; diagnosis ; epidemiology ; Prognosis ; Retrospective Studies ; Survival Analysis ; Young Adult

Humans ; Bayes Theorem ; Age Factors ; Age Distribution ; Mouth Neoplasms/epidemiology* ; China/epidemiology* ; Mortality

Objective: We aim to evaluate the morbidity and mortality of cancer attributable to human papillomavirus (HPV) infection in China in 2016. Methods: Based on the cancer incidence and mortality rates, national population data, and population attributable fraction (PAF) in China, we calculated the number of incidence and death cases attributed to HPV infection in different areas, age groups, and gender in China in 2016. The standardized incidence and mortality rates for cancer attributed to HPV infection were calculated by using Segi's population. Results: In 2016, a total of 124 772 new cancer cases (6.32 per 100 000) were attributed to HPV infection in China, including 117 118 cases in women and 7 654 cases in men. Of these cancers, cervical cancer was the most common one, followed by anal cancer, oropharyngeal cancer, penile cancer, vaginal cancer, laryngeal cancer, oral cancer, and vulvar cancer. A total of 41 282 (2.03 per 100 000) deaths were attributed to HPV infection, of which 37 417 occurred in women and 3 865 in men. Most deaths were caused by cervical cancer, followed by anal cancer, oropharyngeal cancer, penile cancer, laryngeal cancer, vaginal cancer, oral cancer, and vulvar cancer. The incidence and mortality rates of cervical cancer increased rapidly with age, peaked in age group 50-54 years, then decreased obviously. The morbidity and mortality rates of non-cervical cancer increased with age. The cancer case and death numbers in rural areas (57 089 cases and 19 485 deaths) were lower than those in urban areas (67 683 cases and 21 797 deaths). However, the age-standardized incidence rate (ASIR) and age-standardized mortality rate (ASMR) of cervical cancer were higher in rural areas than in urban areas. There were no significant differences in ASIR and ASMR of non-cervical cancers between urban areas and rural areas. Conclusions: The incidence of cancers attributed to HPV infection in China was lower than the global average, but the number of incidences accounted largely, furthermore there is an increasing trend of morbidity and mortality. The preventions and controls of cervical cancer and male anal cancer are essential to contain the increases in cancer cases and deaths attributed to HPV infection.
China/epidemiology* ; Female ; Humans ; Incidence ; Laryngeal Neoplasms ; Male ; Middle Aged ; Mouth Neoplasms ; Oropharyngeal Neoplasms/epidemiology* ; Papillomavirus Infections/epidemiology* ; Penile Neoplasms/epidemiology* ; Registries ; Uterine Cervical Neoplasms/epidemiology* ; Vaginal Neoplasms ; Vulvar Neoplasms

The purpose of the present review is to give an overview of the association between alcohol intake and the risk of developing cancer. Two large-scale expert reports; the World Cancer Research Fund (WCRF)/American Institute of Cancer Research (AICR) report from 2007, including its continuous update project, and the International Agency for Research of Cancer (IARC) monograph from 2012 have extensively reviewed this association in the last decade. We summarize and compare their findings, as well as relate these to the public health impact, with a particular focus on region-specific drinking patterns and disease tendencies. Our findings show that alcohol intake is strongly linked to the risk of developing cancers of the oral cavity, pharynx, larynx, oesophagus, colorectum (in men), and female breast. The two expert reports diverge on the evidence for an association with liver cancer and colorectal cancer in women, which the IARC grades as convincing, but the WCRF/AICR as probable. Despite these discrepancies, there does, however, not seem to be any doubt, that the Population Attributable Fraction of alcohol in relation to cancer is large. As alcohol intake varies largely worldwide, so does, however, also the Population Attributable Fractions, ranging from 10% in Europe to almost 0% in countries where alcohol use is banned. Given the World Health Organization's prediction, that alcohol intake is increasing, especially in low- and middle-income countries, and steadily high in high-income countries, the need for preventive efforts to curb the number of alcohol-related cancers seems growing, as well as the need for taking a region- and gender-specific approach in both future campaigns as well as future research. The review acknowledges the potential beneficial effects of small doses of alcohol in relation to ischaemic heart disease, but a discussion of this lies without the scope of the present study.
*Alcohol Drinking ; Breast Neoplasms/epidemiology/etiology/mortality ; Colorectal Neoplasms/epidemiology/etiology/mortality ; Female ; Humans ; Liver Neoplasms/epidemiology/etiology/mortality ; Male ; Mouth Neoplasms/epidemiology/etiology/mortality ; Neoplasms/epidemiology/*etiology/mortality ; Public Health ; Risk Factors ; Sex Factors

Korean Society of Thyroid-Head and Neck Surgery appointed a Task Force to provide guidance on the implementation of a surgical treatment of oral cancer. MEDLINE databases were searched for articles on subjects related to “surgical management of oral cancer” published in English. Results were restricted to systematic reviews, randomized control trials/controlled clinical trials, and observational studies. The quality of evidence was rated with use RoBANS (Risk of Bias Assessment Tool for Nonrandomized Studies) and AMSTAR (A Measurement Tool to Assess the Methodological Quality of Systematic Reviews). Evidence-based recommendations for practice were ranked according to the American College of Physicians grading system. Additional directives are provided as expert opinions and Delphi questionnaire when insufficient evidence existed. The Committee developed 68 evidence-based recommendations in 34 categories intended to assist clinicians and patients and counselors, and health policy-makers. Proper surgical treatment selection for oral cancer, which is directed by patient- and subsite-specific factors, remains the greatest predictor of successful treatment outcomes. These guidelines are intended for use in conjunction with the individual patient's treatment goals.
Advisory Committees ; Bias (Epidemiology) ; Carcinoma, Squamous Cell ; Counseling ; Expert Testimony ; Humans ; Mouth Neoplasms ; Neck ; Republic of Korea

OBJECTIVETo investigate the association between oral hygiene, chronic diseases, and oral squamous cell carcinoma.

METHODSWe performed a case-control study with 414 cases and 870 controls in Fujian during September 2010 to January 2015. Patients were newly diagnosed oral squamous cell carcinoma cases according to the pathologic diagnoses, control subjects were enrolled from community population. Epidemiological data were collected by in-person interviews using a standard questionnaire. The contents of the questionnaire included demography character, history of tobacco smoking and alcohol drinking, dietary habits, oral hygiene status, family history of cancer, etc. Using unconditional logistic regression analysis to estimate adjusted odds ratios (OR) and corresponding 95% confidence intervals (CI) for oral hygiene and chronic diseases. We also stratified by sex, smoking and drinking to explore possible difference in association between subgroups.

RESULTSThe multivariate logistic regression analysis indicated that number of teeth (20-27 and < 20), bad prosthesis, recurrent oral ulceration were the risk factors of oral squamous cell carcinoma, the adjusted OR (95% CI) values were 2.01 (1.49-2.73), 3.51 (2.39-5.15), 2.33 (1.79-3.04), 3.96 (2.11-7.44), respectively; brushing tooth once per bay, brushing tooth more than once per day, regular oral health examination at least 5 years per time were the protective factors of oral squamous cell carcinoma, the adjusted OR (95% CI) values were 0.24 (0.13-0.43), 0.13 (0.07-0.24), 0.37 (0.26-0.53), respectively. The stratification analysis indicated that recurrent oral ulceration could increase the risk of oral squamous cell carcinoma for non-smokers and non-drinking, the adjusted OR (95% CI) value was 5.21 (2.42-11.18) and 4.71 (2.37-9.36); and a risky effect of hypertension on risk of oral squamous cell carcinoma was observed for non-smokers and non-drinking, the adjusted OR (95% CI) values were 1.70 (1.10-2.61) and 1.58 (1.07-2.34).

CONCLUSIONSOral hygiene and chronic diseases could affect the incidence of oral squamous cell carcinoma.

Alcohol Drinking ; Carcinoma, Squamous Cell ; epidemiology ; Case-Control Studies ; Chronic Disease ; epidemiology ; Diet ; Humans ; Incidence ; Mouth Neoplasms ; epidemiology ; Odds Ratio ; Oral Hygiene ; Risk Factors ; Smoking ; Surveys and Questionnaires

INTRODUCTIONOral and pharyngeal cancers grouped together are the sixth most common cancer seen worldwide. Oral cancers are, however, relatively not common in Singapore. There are few published epidemiological studies of oral cancers seen in Singapore. This article is a retrospective study of oral cancer incidence in a major tertiary institution in Singapore from 1991 to 2001.

MATERIALS AND METHODSAll oral cancers diagnosed from 1991 to 2001 were extracted from the register of histopathology results and case notes were reviewed.

RESULTSIn our study, it was found that oral malignancies preferentially affect older males. Chinese, being the predominant ethnicity, reports the highest incidence of oral malignancy. Squamous cell carcinoma was the most common oral malignancy with the tongue being the most commonly affected site. The majority of patients who sought treatment had complaints of swelling and were referred from restructured government hospitals and clinics.

CONCLUSIONDental professional should be aware of the common clinical presentation of oral cancers. As oral cancer is a disease of high morbidity and mortality, a concerted effort from the government and healthcare profession will be required to improve the outcome of the disease.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Incidence ; Male ; Middle Aged ; Mouth Neoplasms ; diagnosis ; epidemiology ; Retrospective Studies ; Singapore ; epidemiology ; Tertiary Care Centers ; Time Factors ; Young Adult

China ; Cleft Lip ; epidemiology ; Cleft Palate ; epidemiology ; Dentist-Patient Relations ; Health Services Needs and Demand ; History, 20th Century ; History, Ancient ; History, Medieval ; Humans ; Malocclusion ; epidemiology ; Mouth Neoplasms ; epidemiology ; Prevalence ; Surgery, Oral ; education ; history ; organization & administration ; trends