Oral health practices and self-reported adverse effects of E-cigarette use among dental students in 11 countries: an online survey

The effects of electronic smoking on dental caries and proinflammatory markers: a systematic review and meta-analysis

Introduction

Smoking and the use of electronic cigarettes (e-cigs) are common practices that have significant consequences for oral health. Although the negative impact of traditional tobacco products on oral tissues is widely known, the emergence of e-cigs poses a new obstacle. This review summarises existing data on the influence of e-cigs on oral health, with a specific emphasis on dental caries and pro-inflammatory agents.

Methods

A comprehensive search was conducted via PubMed, Web of Science, Embase, and Scopus to identify relevant studies published until September 2024. The structured search strategy uncovered 42 articles that were read in full text. The included articles consisted of clinical trials, observational studies, and laboratory investigations that examined the impact of e-cig aerosol on oral bacteria and pro-inflammatory markers and its potential to contribute to dental caries.

Results

The findings indicate that e-cig users may have a higher prevalence of dental caries compared with non-smokers. Most studies focusing on bacteria showed that vaping may inhibit normal flora, giving cariogenic bacteria a chance to grow more. This finding indicates a notable oral health risk associated with vaping. Meta-analyses suggest no effect of using e-cigs on the levels of TNF-α, IL-1β, IL-6, and IL-8 in saliva, even if it may affect their levels in GCF. However, in GCF, only one study reported TNF-α and IL-1β, and only two studies reported IL-6 and IL-8. Nevertheless, the effects of e-cigs on dental caries require further investigation since the data do not provide a clear picture.

Discussion

This review emphasises the necessity for ongoing research to clarify the mechanisms that cause these consequences and to guide public health policies aimed at reducing the harm caused by e-cigarettes.

Systematic Review Registration

https://www.crd.york.ac.uk/PROSPERO/view/CRD42024537910, PROSPERO (CRD42024537910).

Oral health status, self-perceptions, and risk awareness among young adult users of electronic cigarettes in Pakistan

INTRODUCTION

The use of electronic cigarettes (ECs) has surged globally, particularly among young individuals. This study aimed to assess the perceptions of vaping-related oral health risks, clinical oral health status, and self-perceived dental and periodontal conditions among young adult users of ECs in Pakistan.

METHODS

A cross-sectional study was conducted from June 2023 to March 2024, recruiting 142 young users of ECs. Intraoral examinations assessed Decayed, Missing, and Filled Teeth (DMFT) index, Oral Hygiene Index Simplified (OHI-S), Gingival Bleeding Index (GBI), Plaque Index (PI), and dental stain. Data on sociodemographic characteristics, oral health behaviors, vaping habits, and perceptions of impact of vaping on oral health were gathered through a self-administered questionnaire. Associations between EC use and various oral health variables were analyzed using the chi-squared and Fisher's exact tests.

RESULTS

Mean DMFT was 5.66 (SD=2.20). Poor oral hygiene (29.6%) and severe dental staining were prevalent. Most participants (76.1%) brushed once daily, while only 34.5% attended regular dental check-ups. Gingival bleeding and plaque accumulation were observed in 47.2% and 35.3% of participants. Around 66% reported daily EC use, with 80.3% initiating vaping before the age of 18 years. Most common reason for vaping was perception that ECs are safer than traditional smoking (31.7%). Participants' perceptions of vaping-related oral health risks were relatively low, with 45% associating vaping with tooth decay, 48% with gum disease, and 58.5% with tooth staining. Tooth brushing frequency, vaping frequency (per day), and time since vaping started, were significantly associated with oral clinical indicators (p<0.05). The education level was the only variable significantly associated with vaping-related risk perception (p<0.05).

CONCLUSIONS

The study reveals that oral health awareness among young vapers is low, with many starting EC use at a young age and exhibiting poor oral health behaviors. Misconceptions about the safety of ECs compared to conventional cigarettes may contribute to increased vaping.

Vaping as a Risk Factor for Oral Erythema Multiforme: A Case Report and Literature Review

Introduction

Erythema multiforme is a hypersensitivity reaction caused by various factors, such as viruses, chemicals, and drugs. Electronic cigarettes (e-cigarettes) or vape is a battery-powered nicotine delivery device that substitutes for traditional cigarettes. The chemical components of vaping, including propylene glycol and nicotine, can cause hypersensitivity reactions.

Objective

To report a case of oral erythema multiforme in an e-cigarettes user, treatment, and review the literature regarding the impact of these devices on oral health.

Clinical Case

A 22-year-old woman came to the Oral Medicine Department with complaints of stomatitis causing pain, eating, and drinking difficulty, which started with fever and pimple-like on the lips. She was an active vape user for one year. Extraoral examination revealed no lesions on other body parts. The serosanguinolent crusts on the lips, an erosive area on the labial commissures and tended to bleed. Intraoral examination revealed white ulcers with yellowish edges and irregular, varying sizes in several parts of the oral mucosa. The anti-HSV-1 IgG laboratory results showed non-reactive, leading to a diagnosis of oral erythema multiforme. Management of oral conditions using 0.9% NaCl compress, dexamethasone mouthwash, and hyaluronic acid, applying 2% miconazole cream on labial commissures and vaseline album cream on the dry lips, and stopping vaping. Oral condition improved in a week of therapy.

Conclusion

Erythema multiforme restricted to the mouth is rare, especially associated with electronic cigarettes. Early identification of oral ulcerative disorders is crucial for accurate diagnosis and treatment, where clinicians should consider oral erythema multiforme as a possible diagnosis.

The potential health effects associated with electronic-cigarette

A good old gateway theory that electronic-cigarettes (e-cigarettes) are widely recognized as safer tobacco substitutes. In actuality, demographics also show that vaping cannibalizes smoking, the best explanation of the data is the "common liability". However, the utilization of e-cigarette products remains a controversial topic at present. Currently, there has been a widespread and substantial growth in e-cigarette use worldwide owing to their endless new flavors and customizable characteristics. Furthermore, e-cigarette has grown widespread among smokers as well as non-smokers, including adolescents and young adults. And some studies have shown that e-cigarette users are at greater risk to start using combustible cigarettes while e-cigarettes use was also observed the potential benefits to people who want to quit smoking or not. Although it is true that e-cigarettes generally contain fewer toxic substances than combustible cigarettes, this does not mean that the chemical composition in e-cigarettes aerosols poses absolutely no risks. While concerns about toxic substances in e-cigarettes and their widespread use in the population are reasonable, it is also crucial to consider that e-cigarettes have been associated with the potential for promoting smoking cessation and the clinically relevant improvements in users with smoking-related pathologies. Meanwhile, there is still short of understanding of the health impacts associated with e-cigarette use. Therefore, in this review, we discussed the health impacts of e-cigarette exposure on oral, nasal, pulmonary, cardiovascular systems and brain. We aspire for this review to change people's previous perceptions of e-cigarettes and provide them with a more balanced perspective. Additionally, we suggest appropriate adjustments on regulation and policy for e-cigarette to gain greater public health benefits.

Oral health knowledge is associated with oral health-related quality of life: a survey of first-year undergraduate students enrolled in an American university

BACKGROUND

Oral health knowledge forms part of oral health literacy that enables individuals to inform appropriate oral health decisions and actions. Oral health-related quality of life (OHRQoL) characterizes self-perception of well-being influenced by oral health. This study aimed to examine the relationship between oral health knowledge and OHRQoL.

METHODS

A random sample of 19-to-24-year-old first-year undergraduate students (n = 372) in Minnesota, United States of America was used. Each student was assessed with an online survey using the Comprehensive Measure of Oral Health Knowledge (CMOHK) and the OHRQoL items of the World Health Organization (WHO) Oral Health Questionnaire for Adults. Relationships between OHRQoL parameters and CMOHK together with other covariates were assessed using ordinal regression models. Associations between OHRQoL parameters were examined with the Kendall's tau-b method.

RESULTS

Dry mouth (45%) was the most reported OHRQoL issue. The respondents showing good oral health knowledge were less likely to experience speech or pronunciation difficulty (β=-1.12, p = 0.0006), interrupted sleep (β=-1.43, p = 0.0040), taking days off (β=-1.71, p = 0.0054), difficulty doing usual activities (β=-2.37, p = 0.0002), or reduced participation in social activities due to dental or oral issues (β=-1.65, p = 0.0078).

CONCLUSIONS

This study suggested a protective effect of better oral health knowledge on specific OHRQoL issues. In addition to provision of affordable dental services, university-wide oral health education can be implemented to improve OHRQoL in undergraduate students.

Nicotine dependence and associated factors among persons who use electronic e-cigarettes in Malaysia - an online survey

BACKGROUND

Nicotine dependence, factors associated with dependence, and self-reported side effects among people who use e-cigarettes are scarce in developing countries.

METHODS

A sample of 302 persons who currently use e-cigarettes was recruited from discussion forums on Reddit, Facebook, and the forum 'lowyat'. The online Google form survey collected data on demographics, e-cigarette use, and the reasons, for cigarette smoking, Fagerstorm Test for Nicotine Dependence adapted for e-cigarettes (eFTND), and side effects experienced.

RESULTS

The mean age was 25.5 years (6.5), 60.6% were males and 86% had higher education. About 47% were using e-cigarettes only, 27.8% were currently using dual products (both electronic and conventional cigarettes), and 25.2% had also smoked cigarettes in the past. 'Less harmful than cigarettes' (56.3%), 'because I enjoy it' (46.7%), and 'it has a variety of flavors (40.4%) were the common reasons for e-cigarette use. The mean eFTND score was 3.9 (SD = 2.2), with a median of four side effects (IQR 3-6), sore or dry mouth/throat (41.4%), cough 33.4%, headache (20.5%), dizziness (16.2%) were commonly reported side effects. eFTND score and side effects were higher among persons using dual products. By multiple linear regression analysis, males (β = 0.56 95% CI 0.45, 1.05, p = 0.033), dual-use (β = 0.95 95% CI 0.34, 1.56, p < 0.003), and use of nicotine-containing e-cigarettes (β = 0.66 95% CI 0.07, 1.25 p = 0.024) had higher eFTND score.

CONCLUSION

Our findings of the study call for the placement of disclaimers about possible nicotine addiction and side effects of e-cigarette products.

Oral cancer knowledge, attitudes, and practices among senior dental students in Yemen: a multi-institution study

BACKGROUND

The "Knowledge, attitude, and practice (KAP)" approach is crucial in health system. Appreciating the current KAP status will reveal the extent of the efficiency of applied health strategies, and subsequently help to determine the appropriate health policy to be employed for improving the health indicators of a given disease/condition, including Oral Cancer (OC). This large-scale cross-sectional study aimed to assess knowledge, attitude, and practice on OC among senior dental students in Yemen.

METHODS

A pre-validated online questionnaire was used for data collection. It consisted of a series of close-ended questions on knowledge, attitudes and practices related to OC. Yemeni dental students in clinical levels (4th and 5th years) from nine dental schools based in four major cities were invited to complete the survey. The SPSS Version 28.0 was used for data analysis. Differences by different grouping factors were assessed by Chi-squared and Mann Whitney-U tests, as appropriate.

RESULTS

A total of 927 students completed the questionnaire: a response rate of 43%. While the majority identified smoking (93.8%), and smokeless tobacco (92.1%) as potential risk factors of OC, only 76.2% recognized sun exposure as a risk factor for lip cancer and only 50% were aware of old age as a risk factor of OC. Regarding clinical signs of OC, 84.1% reported that OC can present as non-healing ulcer, but only two thirds of the participants recognized that OC can present as a white and/or red lesion. With respect to practices, although 92.1% reported asking their patients regarding oral habits, only 78% reported they regularly carry out a soft tissue examination. Only 54.5% of the participants considered themselves to be well-trained to provide smoking cessation advice, and 21% were confident regarding their knowledge on OC. The 5th year students showed significantly better knowledge and practices than the 4th year students did (p < 0.01).

CONCLUSION

The study suggests significant gaps in knowledge, attitudes, and practices of senior dental students in Yemen regarding OC. The findings also underscore the urgent need to improve OC teaching and training of undergraduate dental students, and to provide periodic well-structured continuing professional development activities for dental professionals.

The prevalence of xerostomia among e-cigarette or combustible tobacco users: A systematic review and meta-analysis

INTRODUCTION

This study aims to evaluate the prevalence of xerostomia in a healthy population with e-cigarettes and/or combustible tobacco.

METHODS

The following electronic databases were searched: Web of Science, Chinese Biomedical Literature Database (CBM), PubMed, Cochrane Library, Embase, Chinese National Knowledge Infrastructure (CNKI), China Science and Technology Journal Database (VIP), and Wan-Fang Database, from 1 January 2000 to 20 October 2022. The language was limited to Chinese and English. The data were analyzed using Stata 15.0, and the prevalence of xerostomia in different smokers is reported.

RESULTS

A total of 14 studies were included, with a total sample size of 6827 cases. The overall prevalence of xerostomia was 26% (95% CI: 18-35). In the combustible tobacco population, the prevalence of xerostomia was 24% (95% CI: 21-17), while among e-cigarette users it was 33% (95% CI: 18-48).

CONCLUSIONS

Current evidence suggests that the prevalence of xerostomia is high in healthy smoking populations. These findings are restricted by the number and quality of the included studies and need to be validated by additional high-quality studies.

Knowledge, beliefs, attitude, and practices of E-cigarette use among dental students: A multinational survey

Background

E-cigarette use is a trend worldwide nowadays with mounting evidence on associated morbidities and mortality. Dentists can modify the smoking behaviors of their patients. This study aimed to explore the knowledge, beliefs, attitude, and practice of E-cigarette use among dental students.

Materials and methods

This multinational, cross-sectional, questionnaire-based study recruited undergraduate dental students from 20 dental schools in 11 countries. The outcome variable was current smoking status (non-smoker, E-cigarette user only, tobacco cigarette smoker only, dual user). The explanatory variables were country of residence, sex, age, marital status, and educational level. Multiple linear regression analysis was performed to explore the explanatory variables associated with E-cigarette smoking.

Results

Of the 5697 study participants, 5156 (90.8%) had heard about E-cigarette, and social media was the most reported source of information for 33.2% of the participants. For the 5676 current users of E-cigarette and/or tobacco smoking, 4.5% use E-cigarette, and 4.6% were dual users. There were significant associations between knowledge and country (P< 0.05), educational level (B = 0.12; 95% CI: 0.02, 0.21; P = 0.016) and smoking status (P< 0.05). The country of residence (P< 0.05) and smoking status (P< 0.05) were the only statistically significant factors associated with current smoking status. Similarly, there were statistically significant associations between attitude and country (P< 0.05 for one country only compared to the reference) and history of previous E-cigarette exposure (B = -0.52; 95% CI: -0.91, -0.13; P = 0.009). Also, the practice of E-cigarettes was significantly associated with country (P< 0.05 for two countries only compared to the reference) and gender (B = -0.33; 95% CI: -0.52, -0.13; P = 0.001).

Conclusion

The knowledge of dental students about E-cigarette was unsatisfactory, yet their beliefs and attitudes were acceptable. Topics about E-cigarette should be implemented in the dental curriculum.