A Systematic Review and Meta-Analysis of the Role of Sugar-Free Chewing Gum on Plaque Quantity in the Oral Cavity.

Background: The aim of this systematic review of published literature was to answer the research question, "What is the difference in the level of plaque quantity, in adults and children who chew sugar-free gum (SFG), compared with those who do not chew SFG, who do not chew gum, or who use alternatives such as probiotics or fluoride varnish?". Methods: The systematic review [registered on PROSPERO 2018 (CRD42018094676)] included studies on adults and children with chewing of SFG as the main intervention, where "sugar" referred to monosaccharides and disaccharides. Included studies were in English and corresponded to primary research published between 1946 and 2020. The search conducted spanned all relevant databases using both Medical Subject Headings (MESH) and free text with combinations of "chewing gum," "sugar-free," "caries," "xerostomia," "periodontal disease." Results: Eight articles included plaque quantity as part of their outcomes. Meta-analysis showed that SFG significantly reduced plaque quantity (effect size-0.778; 95% CI-1.167 to-0.39). The correlation between the baseline and the end of study data was assumed to be 0.95 for the control and 0.65 for the SFG group. A sensitivity analysis was conducted with the pre- to post-test correlation, set at 0.95 for the SFG group. This gave an effect size of-1.098 (95% CI-1.539 to-0.656) with I 2 = 89.73%. When looking more specifically at xylitol gum, the results of the meta-analysis showed that it significantly reduced plaque quantity (effect size-0.743; 95% CI-1.148 to-0.338). There was a high degree of heterogeneity between studies with I 2 = 86.0%. Conclusion: There is some evidence that chewing sugar-free gum, in particular xylitol SFG, reduces the quantity of plaque in the oral cavity in comparison to non SFG chewing or no chewing controls. Further research with improved design, lengthier timeframes and higher number of participants should be considered. Systematic Review Registration: https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=94676.

Peptidomic changes of saliva after non-surgical treatment of stage I/II generalized periodontitis.

OBJECTIVE: To explore the changes of peptidome profiles of saliva, serum, and gingival crevicular fluid (GCF) before and after non-surgical periodontal treatment in patients with generalized periodontitis (stage I/II). SUBJECTS AND METHODS: Saliva, serum, and GCF samples were collected from 17 patients at baseline (T0 ), one week after ultrasonic supragingival scaling (T1 ) and eight weeks after subgingival scaling and root planning (T2 ). Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) was carried out to detect changes in peptidomic profiles. Then, nano-liquid chromatography-electrospray ionization-tandem mass spectrometry (nano-LC/ESI-MS/MS) was performed to identify potential peptide biomarkers. RESULTS: Most of the peptides from the patients exhibited a decreasing trend from the time point of pretreatment to that of post-treatment. Cluster analysis and scatter plots using these peptides indicated that salivary peptidome has an acceptable capability of reflecting the status of stage I/II generalized periodontitis. Seven of these peptides were successfully identified as α-1-antitrypsin, immunoglobulin κ variable 4-1, haptoglobin, and immunoglobulin heavy constant γ2. CONCLUSIONS: Certain peptides in saliva, serum, and GCF were down-regulated after non-surgical periodontal treatment, demonstrating the application prospects of saliva in monitoring and surveillance of periodontal diseases in both clinical settings and communities.

The Influence of Dentists' Profile and Health Work Management in the Performance of Brazilian Dental Teams.

To evaluate the association between dentists' profile and health work management with the performance of primary care dental teams in the Brazilian National Health System, both nationally and regionally. Secondary data analysis from a Brazilian National Programme that evaluated 18,114 Brazilian dental teams, working in the public sector, between 2013 and 2014. Twenty-four independent variables taken from dentists' profile and dental team management characteristics were analysed to assess their influence on reported "dental team performance." An estimated score was generated from their performance on 20 dental procedures by an item response theory model. Multiple linear regression models were performed for each Brazilian geographical region, separately and for the whole of Brazil. p values ≤ 0.05 were considered significant. Two variables related to dentists' profile, "having graduate studies" (ß = 0.151) and "undertaking continuing professional development training" (ß = 0.101), were associated with enhanced dental team performance in all five Brazilian geographical regions and nationally. The dental team management variables of "having a flexible dental appointment list" (ß = 0.218) and "monitoring oral health indicators" (ß = 0.132) also contributed to improve team performance in each of the regions and nationally. Dentists' profile influenced the performance of dental teams from south region more than the other regions. The findings suggest that continuing professional development, including postgraduate education, and strategic management characteristics are important for primary dental care performance and should be reflected in health policy initiatives in support of quality care. Regional factors could be considered for health care management.

A systematic review and meta-analysis of the role of sugar-free chewing gum on Streptococcus mutans.

BACKGROUND: Preventive strategies targeting Streptococcus mutans may be effective in reducing the global burden of caries. The aim of the current systematic review of published literature was to determine the difference in level of Streptococcus mutans in adults and children who chew sugar-free gum (SFG), compared with those who did not chew gum, who chewed a control gum or received alternatives such as probiotics or fluoride varnish. METHODS: Systematic review (PROSPERO registration No. CRD42018094676) of controlled trials with adult and child participants where chewing of SFG was the main intervention. Databases searched (1 Jan 1946 to 31 August 2020): MEDLINE, EMBASE, PsycINFO, Scopus, Web of Science, Allied and Complimentary Medicine Database, Cochrane Central Register of Controlled Trials (CENTRAL), Open Grey, PROSPERO and the Cochrane library of systematic reviews. 'Search terms included Medical Subject Headings, and free text to cover the following range of constructs: chewing gum, sugar free, oral health, caries, xerostomia, periodontal disease. Data extraction and Risk of Bias assessment was undertaken by three researchers using a modified version of the Cochrane RoB tool (version 1). Data synthesis was conducted using meta-analysis in STATA. RESULTS: Thirteen studies of SFG with micro-organisms as outcomes were identified. The use of SFG significantly reduced the load of Streptococcus mutans (effect size - 0.42; 95% CI - 0.60 to - 0.25) compared to all controls. In seven of the 13 studies the confidence intervals of the effect size estimate included zero, suggesting no effect of the intervention. Twelve trials used xylitol gum only as the basis of the intervention; xylitol gum significantly reduced the load of Streptococcus mutans (effect size - 0.46; 95% CI - 0.64 to - 0.28) in comparison to all controls. There was a moderate level of heterogeneity across the included studies. No adverse effects were recorded. CONCLUSION: Chewing SFG reduces the load of Streptococcus mutans in the oral cavity in comparison to non-chewing controls. Considering the degree of variability in the effect and the moderate quality of the trials included, there is a need for future research exploring the use SFG as a preventive measure for reducing the cariogenic oral bacterial load.

The potentiality of salivary peptide biomarkers for screening patients with periodontal diseases by mass spectrometry.

BACKGROUND: Certain candidate biomarkers for periodontal diseases in saliva, gingival crevicular fluid (GCF), and serum were reported by some previous studies, but little evidence was obtained in their potentiality for screening patients with periodontal diseases. METHODS: Unstimulated whole saliva, GCF, and serum samples, which were collected from 17 patients with chronic periodontitis, 17 with gingivitis, and 16 periodontally healthy persons as control, were analysed by MALDI-TOF MS. Cluster analysis and receiver operating characteristic (ROC) curve analysis were carried out to evaluate the ability of candidate peptides to distinguish patients with periodontal diseases from healthy subjects. Nano-LC/ESI-MS/MS was performed to identify possible proteins that these peptides might derive from. RESULTS: Most of the differentially expressed peptides exhibited an increase in participants with chronic periodontitis and gingivitis compared with healthy controls. Cluster analysis showed a good clustering capacity between chronic periodontitis and healthy controls. Most AUCs for differentially expressed peptides were >0.7, whereas some peptides from GCF and serum even exhibited AUCs of 0.9-1.0. CONCLUSIONS: Some peptides in saliva, GCF, and serum act as biomarkers for chronic periodontitis and gingivitis, which have certain potentiality for screening patients with periodontal diseases and distinguishing them from healthy individuals in a comparatively large population by mass spectrometry.

Can oral health education be delivered to high-caries-risk children and their parents using a computer game? - A randomised controlled trial.

BACKGROUND: Families of children undergoing general anaesthesia (GA) for caries management requested that oral health advice is delivered using audio-visual media. OBJECTIVE: To compare an oral health education computer game to one-to-one education. DESIGN: A blind randomised controlled trial of 4- to 10-year-old children scheduled for GA due to caries. Primary outcome measures were (1) parent and child satisfaction with education method; (2) improvements in child's dietary knowledge; and (3) changes in child's diet and toothbrushing habits. Measures were taken at baseline, post-intervention, and three months later. RESULTS: One hundred and nine families took part. Both methods of education were highly satisfactory to children and parents. Children in both groups showed significant improvement in recognition of unhealthy foods immediately post-education (P < 0.001). Fifty-five per cent of all participants completed telephone follow-up after 3 months and reported improvements in diet, including reducing sweetened drinks (P = 0.019) and non-core foods (P = 0.046) intake, with no significant differences between the groups. Children reported twice-daily toothbrushing but no changes in snack selection. Attendance for a 3-month dental review was poor (11%). CONCLUSION: Oral health education using a computer game can be as satisfactory and as effective in improving high-risk-children's knowledge as one-to-one education. The education received can lead to the positive dietary changes in some families.

Determinants of Catastrophic Dental Health Expenditure in China.

This study explored catastrophic health expenditure in China, due to out-of-pocket payments for dental care, and its associated individual- and contextual-level factors. We pooled data from 31,566 adults who participated in the third National Oral Health Survey with province-level data from different sources. We defined catastrophic dental health expenditure (CDHE) as payments for dental services and/or medication for dental problems during the last year that exceeded the 10% and 20% of the household income. The association of individual and contextual factors with catastrophic dental health expenditure was evaluated using two-level logistic regression models with individuals nested within provinces. Socioeconomic position (education and household income), household size and dental status (pain in teeth or mouth and number of teeth) were the individual-level factors associated with CDHE among the full sample of participants; and, also, among those who used dental services in the past year. Greater gross domestic product per capita was the only contextual factor associated with CDHE, and only at the lower income threshold. This study shows that out-of-pocket expenses for dental services may put a considerable, and unnecessary, burden on households' finances. Our findings also help characterise those households more likely to face catastrophic expenditure on health if they have to pay for dental services.

An oral health education video game for high caries risk children: study protocol for a randomized controlled trial.

BACKGROUND: Tooth decay is the most common chronic disease of childhood in the world. Many children develop caries early in their lives, and go on to develop further caries and sepsis as they grow up, indicating failure in prevention. As a result, many end up requiring general anaesthesia to undergo treatment for a disease that is completely preventable. Previous studies have suggested that the families of these children need better oral health education as well as better support in implementing healthy practices at home, as they feel impeded by broader life challenges. Parents of these children have suggested utilizing modern technologies, such as the internet, DVDs and video games as methods of delivery of education that might fit in with their busy lifestyles. The aim of this investigation is to assess the acceptability and efficiency of an oral health education video game directed at these children and their families. METHODS/DESIGN: A two-armed phase-II randomized controlled trial will assess a children's oral health education video game in comparison with verbal oral health education in terms of: family satisfaction, effect on oral health knowledge, and effect on dietary and oral hygiene habits. Up to 110 four- to ten-year-old children, referred for tooth extraction under general anaesthesia due to caries, will be recruited. A sample of 45 participants in each group will be needed to provide 80% statistical power. The primary outcome measures for this study are: (1) parent and child satisfaction with the intervention, as indicated using a visual analogue scale; (2) improvement in the child's dietary knowledge measured by a pictorial dietary quiz; and (3) changes in the child's diet and oral hygiene habits, measured using a children's dietary questionnaire completed by the parent, and snacking and toothbrushing diaries completed by the child. Measures will be taken at baseline, directly after the intervention, and three months later. DISCUSSION: This study is a phase-II randomized controlled trial of an oral health education video game for high caries risk children and their families. Few protocols such as this are available in this much-needed research area. TRIAL REGISTRATION: ISRCTN94617251.

Failure on all fronts: general dental practitioners' views on promoting oral health in high caries risk children--a qualitative study.

BACKGROUND: Despite overall improvements in oral health, a large number of children in United Kingdom (UK) are affected by dental caries; and the implementation of oral health promotion in some families remains a challenge. As such, children from those families suffer high caries rates, and are frequently referred for tooth extraction under General Anaesthesia (GA), one of the commonest reasons for paediatric hospital admissions. The aim of this investigation is to explore referring primary care General Dental Practitioners' (GDPs) views and experiences in trying to promote better oral health for those children. METHOD: A qualitative study, utilizing face-to-face, semi-structured interviews with GDPs in three London boroughs who refer children for extraction of decayed teeth under GA selected based on referral rate. Qualitative Framework Analysis was used to present the results. RESULTS: Eighteen GDPs (56% male) were interviewed: average age 42 years (range: 26-73 years). informants reported challenges to promotion of oral health categorised as: (1) child's young age, poor cooperation, and high treatment need; (2) parental skills to face up to modern day challenges and poor attitudes towards good oral health (3); social inequality, exclusion and cultural barriers in immigrant families; (4) National Health Services (NHS) primary care practice remuneration, constraints and training; (5) inadequate secondary care communication and engagement; and (6) failure in establishing national policy to grasp the width and depth of the problem. CONCLUSION: GDPs feel frustrated and isolated in their efforts to promote oral health in those children. These findings suggest difficult challenges on all fronts. Reform of preventive dentistry funding and delivery, as well as a multiagency multidimensional approach that is mindful of the social determinants of children's oral health and barriers to application of oral and wider health initiatives are needed to address this important public health issue.

Perception of 'comprehensiveness of care': a qualitative study amongst dentists in the Brazilian Health System.

Comprehensiveness relates both to the scope of services offered and to a holistic clinical approach. The aim of this study was to identify the perception of Brazilian dentists regarding key concepts of comprehensiveness and its importance in primary health care oral health services performed in the public sector. Focus groups were conducted to explore three main concepts, 'patient welcoming', 'bonding' and 'quality of care', as well as their aspects. In total, there were four focus groups comprising seven general dentists, all of whom had at least two years of experience in primary care, from municipalities of varying sizes. Discussions of approximately 60 minutes were conducted, audio-recorded and transcribed. The data were analysed by qualitative thematic analysis, in line with the framework approach. The general dentists reported that they are aware that in the Brazilian Health System, the onset of patient care by primary health care services must happen through 'patient welcoming.' Nevertheless, they suggested that this action is often performed poorly due to the large volume of patients. Although they knew the importance of 'bonding', they realised that there is a lack of education preparing professionals to address interpersonal and social issues. They were aware that 'quality of care' is related to multiple factors. Comprehensiveness, as an approach in dental public health practices, needs to be enhanced, and there is evidence that primary care dentists are aware of the need for such an approach.

Perception of 'Comprehensiveness of Care': a qualitative study amongst dentists in the Brazilian Health System

Comprehensiveness relates both to the scope of services offered and to a holistic clinical approach. The aim of this study was to identify the perception of Brazilian dentists regarding key concepts of comprehensiveness and its importance in primary health care oral health services performed in the public sector. Focus groups were conducted to explore three main concepts, ‘patient welcoming’, ‘bonding’ and ‘quality of care’, as well as their aspects. In total, there were four focus groups comprising seven general dentists, all of whom had at least two years of experience in primary care, from municipalities of varying sizes. Discussions of approximately 60 minutes were conducted, audio-recorded and transcribed. The data were analysed by qualitative thematic analysis, in line with the framework approach. The general dentists reported that they are aware that in the Brazilian Health System, the onset of patient care by primary health care services must happen through ‘patient welcoming.’ Nevertheless, they suggested that this action is often performed poorly due to the large volume of patients. Although they knew the importance of ‘bonding’, they realised that there is a lack of education preparing professionals to address interpersonal and social issues. They were aware that ‘quality of care’ is related to multiple factors. Comprehensiveness, as an approach in dental public health practices, needs to be enhanced, and there is evidence that primary care dentists are aware of the need for such an approach.

A surgeon led smoking cessation intervention in a head and neck cancer centre.

BACKGROUND: The government has recognised the role of healthcare professionals in smoking cessation interventions with integrated care pathways for identification and referral of at-risk patients who smoke. Referral for suspected cancers has been suggested as a 'teachable moment', whereby individuals are motivated and more likely to adopt risk-reducing behaviours. A head and neck cancer referral clinic could therefore provide opportunities for smoking cessation intervention. This study aims to pilot a brief smoking cessation intervention during a consultation visit for patients referred with suspected head and neck cancer and evaluate its acceptability and impact. METHODS: A brief script for smoking cessation intervention which included a smoking cessation referral was designed to be delivered to patients attending a rapid access clinic. Patient outcome data was collected by the stop smoking team for patients who accepted the referral. A subset of these patients was also interviewed by telephone; these findings were combined with data provided by the stop smoking services to assess the acceptability and impact of pilot smoking cessation intervention on patients. RESULTS: In total, 473 new patients attended the clinic during the study period, of whom 102 (22%) were smokers. Of these, 80 (78%) accepted a referral to stop smoking services. A total of 75 (74%) patients were approached subsequently in a telephone survey. Of the 80 newly referred patients, 29 (36%) quit smoking at least temporarily. Another eight patients reduced their smoking or set a quit date (10%), so the experience of attending the clinic and the intervention impacted favourably on almost half of the patients (46%). The patient survey found the intervention to be acceptable for 94% (n = 50) of patients. Qualitative analysis of patient responses revealed five elements which support the acceptability of the intervention. CONCLUSIONS: The findings of this pilot study suggest that discussion of smoking cessation with patients referred for suspected head and neck cancer may have an impact and facilitate the process towards quitting. A possible diagnosis of cancer appears to present a 'teachable moment' to encourage positive health behaviour change.

Motivation for a career in dentistry: the views of dental students in the United Arab Emirates.

OBJECTIVES: To investigate final-year dental students' perceived motivation for choosing dentistry as a professional career at one dental school in the United Arab Emirates (UAE). METHOD: Final-year dental students of Ajman University (n = 87) completed a questionnaire. Univariate and multivariate analysis of the data were undertaken using statistical software. RESULTS: A response rate of 82% (n = 71) was achieved, 65% of whom were female. Students ranged from 21 to 29 years of age. Motivation to study dentistry was led by a 'desire to work in health care' (93%), 'wish to provide a public service' (88.7%) and because 'degree leads to a recognised job' (84.5%). Males were significantly more likely to report 'high income' (84% vs. 67%; P = 0.01) and females 'influence of family' (80% vs. 60%; P = 0.02) as motivating influences. The reliability and internal consistency of the instrument as calculated by Cronbach's alpha was 0.82. Eight factors explaining the 71% of the variation were: 'professional job factors' (11.7%), 'experience and advice' (9.8%), 'business and financial with independence' (9.7%), 'careers, advice and possibilities' (8.9%), 'knowledge and job security' (8.8%), 'health care, people and public service' (8%), 'family and friends' (7.2%) and 'career in dentistry' (6.9%). Gender was a significant predictor of 'business and financial' factor (b = -0.76; P = 0.003) and age for 'careers in dentistry' (b = -0.18; P = 0.03). CONCLUSION: Students are motivated by a wide range of factors similar to those found in other studies; however, business features and family influences were significantly associated with gender.