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BMC Oral Health Aug 2023To analyse the available evidence regarding the incidence and severity of white spot lesions (WSLs), plaque accumulation and salivary caries-associated bacteria(SCB) in... (Meta-Analysis)
Meta-Analysis
White spot lesions, plaque accumulation and salivary caries-associated bacteria in clear aligners compared to fixed orthodontic treatment. A systematic review and meta- analysis.
OBJECTIVE
To analyse the available evidence regarding the incidence and severity of white spot lesions (WSLs), plaque accumulation and salivary caries-associated bacteria(SCB) in clear aligners (CA) verses conventional fixed (CF) orthodontic appliances.
METHODS
Electronic searches of MEDLINE, Scopus, Embase, Google Scholar, Clinical trial registry, OpenGrey and ProQuest were done for all relevant studies. Eligibility criteria were; Randomized Controlled Trials and Non-Randomized Studies that compared the incidence and severity of WSLs, plaque accumulation and SCB between CA and CF appliances in patients undergoing orthodontic treatment. The risk of bias(ROB) and certainty of evidence was assessed independently by two reviewers using Cochrane's ROB and GRADEpro, respectively. Standardized mean difference (SMD) was used to estimate the effect size using STATA 17 software.
RESULTS
A total of 14 studies met the eligibility criteria, and eight were suitable for meta-analysis. The qualitative results showed lower incidence and severity of WSLs, plaque accumulation, and SCB in CA group compared to CF appliances. The pooled results showed significantly lower plaque accumulation(SMD - 1.58;95%CI:-2.57,0.58;p = 0.002) in CA compared to CF appliances.
CONCLUSIONS
A moderate-quality evidence reveals less plaque accumulation and less SCB in CA, which might be related to the reduced incidence and severity of WSLs associated with CA when compared with CF appliances. However, the results of the present study should be interpreted with caution given the high ROB among some of the included studies as well as the marked heterogeneity across the studies.
CLINICAL RELEVANCE
For patients who can be treated with either CA or CF appliances, CA may be a better choice concerning oral health.
REGISTRATION
Open Science Framework (DOI: https://doi.org/10.17605/osf.io/kcpvb ).
Topics: Humans; Dental Caries Susceptibility; Bacteria; Dental Caries; Dental Plaque; Orthodontic Appliances, Removable
PubMed: 37635207
DOI: 10.1186/s12903-023-03257-8 -
Journal of Periodontal Research Oct 2023To investigate the existence of any association between new putative periodontal pathogens and periodontitis. Two independent reviewers conducted electronic literature... (Meta-Analysis)
Meta-Analysis Review
To investigate the existence of any association between new putative periodontal pathogens and periodontitis. Two independent reviewers conducted electronic literature searches in the MEDLINE (PubMed), EMBASE, DOSS and Google Scholar databases as well as a manual search to identify eligible clinical studies prior to November 2022. Studies comparing the prevalence of microorganisms other than the already-known periodontal pathogens in subgingival plaque and/or saliva samples between subjects with periodontitis and subject with periodontal health were included. Meta-analyses were performed on data provided by the included studies. Fifty studies including a total of 2739 periodontitis subjects and 1747 subjects with periodontal health were included. The Archaea domain and 25 bacterial species (Anaeroglobus geminatus, Bacteroidales [G-2] bacterium HMT 274, Desulfobulbus sp. HMT 041, Dialister invisus, Dialister pneumosintes, Eubacterium brachy, Enterococcus faecalis, Eubacterium nodatum, Eubacterium saphenum, Filifactor alocis, Fretibacterium sp. HMT 360, Fretibacterium sp. HMT 362, Mogibacterium timidum, Peptoniphilaceae sp. HMT 113, Peptostreptococcus stomatis, Porphyromonas endodontalis, Slackia exigua, Streptococcus gordonii, Selenomonas sputigena, Treponema amylovorum, Treponema lecithinolyticum, Treponema maltophilum, Treponema medium, Treponema parvum and Treponema socranskii) were found to be statistically significantly associated with periodontitis. Network studies should be conducted to investigate the role of these newly identified periodontitis-associated microorganisms through interspecies interaction and host-microbe crosstalk analyses.
Topics: Humans; Bacteria; Periodontitis; Dental Plaque; Bacteroides; Eubacterium
PubMed: 37572051
DOI: 10.1111/jre.13173 -
International Dental Journal Feb 2024Denture plaque, a biofilm that develops on denture surfaces, could contribute to many oral and systemic afflictions. Hence, a quantitative assessment of denture plaque... (Review)
Review
Denture plaque, a biofilm that develops on denture surfaces, could contribute to many oral and systemic afflictions. Hence, a quantitative assessment of denture plaque is important to evaluate the denture hygiene of denture wearers, particularly to prevent plaque biofilm-associated diseases. The aim of this systematic review, therefore, was to review and summarize the visual denture hygiene assessment methods using denture plaque indices and with planimetries published in the literature. English language studies published up to March 2022 in four electronic databases, PubMed, Medline, Embase, and Cochrane Library, were searched, followed by a manual search of Google Scholar by two assessors. The review followed Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) whenever possible. Details of the visual assessment methods, including the types of denture assessed, its materials and its surfaces, as well as the use of a disclosing agent, were the main outcomes. Of 492 screened studies, 74 were included per the inclusion and exclusion criteria. Of these, 60 studies utilized various denture plaque indices while 18 used planimetries. 43 out of 60 studies with indices and 17 out of 18 studies with planimetries used disclosing agents for visual evaluation of plaque. A total of 21 indices were described in the included studies, of which seven graded a divided denture surface, while the remainder graded entire denture surface. Of the 18 planimetric assessments, one study quantified squares of the disclosed plaques on denture images, 16 studies quantified such pixels with computer programs, and a single study quantified points, pixels, and contour of plaque areas. In summary, denture plaque indices appear to be popular in denture plaque assessment due to their simplicity. Computerized planimetric assessment, though more time-consuming, provides a more accurate assessment of plaque load as it is less prone to subjectivity and assessor errors.
Topics: Humans; Oral Hygiene; Dental Plaque; Biofilms; Dental Plaque Index; Dentures
PubMed: 37479594
DOI: 10.1016/j.identj.2023.06.010 -
Special Care in Dentistry : Official... 2024Down syndrome (DS) is distinguished by cognitive disability, a concave profile, and systemic complications. Oral diseases have been reported to be common in DS patients. (Meta-Analysis)
Meta-Analysis
BACKGROUND
Down syndrome (DS) is distinguished by cognitive disability, a concave profile, and systemic complications. Oral diseases have been reported to be common in DS patients.
OBJECTIVE
To investigate the association between DS and periodontal diseases.
METHODS
Two independent reviewers searched six bibliographic databases up to January 2023 and used additional search methods to identify published studies on gingivitis or periodontitis in people with and without DS. Meta-analysis, risk of bias, sensibility analysis, publication bias, and evidence grading were all carried out.
RESULTS
Twenty-six studies were included for analysis. There was a tendency for increased plaque accumulation, periodontal probing, periodontal attachment level, bleeding on probing and indices in DS individuals. Meta-analysis of 11 studies showed a significant association between DS and periodontitis (OR 3.93; 95% CI 1.81-8.53). Probing depth was significantly high in individuals with DS as compared to controls (mean difference 0.40 mm; 95% CI 0.09-0.70). Gingivitis was significantly associated (OR 1.93; 95% CI 1.09-3.41) with DS in four studies. The evidence was classified as 'moderate certainty'.
CONCLUSION
Medium/low-quality studies demonstrate that Down syndrome is strongly associated with periodontitis and moderately associated with gingivitis.
Topics: Humans; Down Syndrome; Periodontal Diseases; Periodontitis; Gingivitis; Dental Plaque
PubMed: 37341556
DOI: 10.1111/scd.12892 -
Journal of Clinical Periodontology Sep 2023Consumption of free sugars has been associated with chronic non-communicable diseases. The aim of the study was to investigate the effect of free-sugar consumption on... (Meta-Analysis)
Meta-Analysis Review
AIM
Consumption of free sugars has been associated with chronic non-communicable diseases. The aim of the study was to investigate the effect of free-sugar consumption on gingival inflammation using a systematic review and meta-analysis based on the PICO question 'What impact does the restriction of free sugars have on the inflammation of gingival tissue?'
MATERIALS AND METHODS
Literature review and analyses were based on the Cochrane Handbook for Systematic Reviews of Interventions. Controlled clinical studies reporting on free-sugar interventions and gingival inflammation were included. Risk of bias was performed with ROBINS-I and ROB-2, and effect sizes were estimated with robust variance meta-regressions.
RESULTS
Of the 1777 primarily identified studies, 1768 were excluded, and 9 studies with 209 participants with gingival inflammation measures were included. Six of these studies reported on the dental plaque scores of 113 participants. Restriction of free sugars, when compared with no such restriction, was associated with statistically significantly improved gingival health scores (standard mean difference [SMD] = -0.92; 95% confidence interval [CI]: -1.43 to -0.42, p < .004; I [heterogeneity] = 46.8) and a trend towards lower dental plaque scores (SMD = -0.61; 95% CI: -1.28 to 0.05, p < .07; I = 41.3). The observed improvement of gingival inflammation scores with restricted consumption of free sugar was robust against various statistical imputations. No meta-regression models were feasible because of the limited number of studies. The median publication year was 1982. Risk-of-bias analysis showed a moderate risk in all studies.
CONCLUSION
Restriction of free sugar was shown to be associated with reduced gingival inflammation. The systematic review was registered at PROSPERO (CRD 42020157914).
Topics: Humans; Dental Plaque; Sugars; Gingivitis; Inflammation; Dental Plaque Index
PubMed: 37246336
DOI: 10.1111/jcpe.13831 -
BMC Oral Health Apr 2023Mouthwashes were convenient adjuncts to mechanical cleaning procedures. This review aimed to evaluate the efficacy of mouthwashes on oral microorganisms and gingivitis... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Mouthwashes were convenient adjuncts to mechanical cleaning procedures. This review aimed to evaluate the efficacy of mouthwashes on oral microorganisms and gingivitis in orthodontic patients.
METHODS
By April 16, 2022, multiple databases and grey literature were searched based on the PICOS strategy. Randomized controlled trials in orthodontic patients evaluating the efficacy of mouthwashes with at least one microbial parameter and/or plaque- and/or gingival inflammation-related index were included. Relevant data were extracted, and the risk of bias was evaluated using Cochrane's tool. Individual mean and standard deviation of the outcomes in mouthwashes and placebos/blank controls were pooled to estimate the weighted mean differences (WMDs) and 95% confidence intervals (95%CIs). Sensitivity analysis, and certainty of evidence were evaluated.
RESULTS
Of 1684 articles, 32 studies satisfied the eligibility criteria, and nine were included for meta-analysis. Missing outcome data was the primary source of bias. Compared to blank controls, the short-term application of fluoride mouthwashes significantly reduced the colony counts of Mutans streptococci (MS), while the long-term application may not be effective. Compared to placebos or blank controls, Chlorhexidine mouthwashes significantly reduced the colony counts of multiple microorganisms in the short-term. Compared to placebos or blank controls, herbal mouthwashes showed the inhibitory effect of MS in the short-term, with some results lacking statistical significance. After meta-analysis, significant lower plaque- and gingival inflammation-related indexes were observed in the Chlorhexidine mouthwashes groups [Gingival Index: WMD = -0.45, 95%CI = -0.70 to -0.20 (placebos as control); WMD = -0.54, 95%CI = -0.96 to -0.13 (blank controls); Plaque Index: WMD = -0.70, 95%CI = -1.12 to -0.27 (blank controls)]. Significant lower gingival inflammation-related indexes were observed in the herbal mouthwashes groups [Gingival Index: WMD = -0.20, 95%CI = -0.32 to -0.09 (blank controls)].
CONCLUSIONS
The short-term application of fluoride mouthwashes may reduce the colony counts of cariogenic bacteria, but the long-term effect is not evident. Chlorhexidine may reduce the colony counts of multiple microorganisms in the short-term. Short-term application Chlorhexidine and herbal mouthwashes may effectively reduce plaque- and gingival inflammation-related indexes. However, the risk of bias, inconsistency, and imprecision in the included studies may reduce the certainty of the evidence.
Topics: Humans; Mouthwashes; Chlorhexidine; Fluorides; Gingivitis; Inflammation; Dental Plaque; Dental Plaque Index; Anti-Infective Agents, Local
PubMed: 37024817
DOI: 10.1186/s12903-023-02920-4 -
Indian Journal of Dental Research :... 2022Chewable toothbrushes (CT) are considered an effective tool for dental plaque removal; however, their effectiveness is still uncertain compared to Manual toothbrushes... (Meta-Analysis)
Meta-Analysis Review
OBJECTIVE
Chewable toothbrushes (CT) are considered an effective tool for dental plaque removal; however, their effectiveness is still uncertain compared to Manual toothbrushes (MT).
AIM
To evaluate the effectiveness of CT compared to MT in dental plaque removal.
METHODS
Studies comparing the efficiency of CT and MT in dental plaque removal measured by Turesky Modification of Quigley-Hein Plaque Index (TMQHI), Quigley-Hein Plaque Index (QHI), or Silness Loe Plaque Index (SLPI) were identified in PubMed, Medline Web of Science, Google Scholar, and the CENTRAL. Results and effect sizes estimate are presented as mean difference, and subgroup analysis is presented separately for non-randomised interventional studies and randomised intervention studies. Risk of bias was assessed using the Cochrane risk of bias tool (ROBINS-I and ROB2 tool).
RESULTS
A total of 10 studies were included in the systematic review, whereas six out of 10 studies were included in the meta-analysis. Both CT and MT were effective in plaque reduction over time when compared individually using the TMQHI and SLPI scores. The overall pooled summary showed no difference in CT and MT's dental plaque removal ability when measured using the TMQHI score. Similarly, there was no difference in CT and MT's dental plaque removal ability when measured using the SLPI score.
CONCLUSION
There is no significant difference in CT and MT's plaque removal ability. Therefore, CT should only be recommended for children and individuals with a disability or manual dexterity.
OBJECTIVE
Chewable toothbrushes (CT) are considered an effective tool for dental plaque removal.
Topics: Child; Humans; Dental Devices, Home Care; Gingivitis; Dental Plaque; Toothbrushing; Dental Plaque Index; Equipment Design
PubMed: 37006013
DOI: 10.4103/ijdr.ijdr_1158_21 -
Journal of Periodontal Research Jun 2023To appraise the literature on the prevalence of the JP2 clone of Aggregatibacter actinomycetemcomitans (A.a.) and on its association with presence and progression of... (Meta-Analysis)
Meta-Analysis Review
To appraise the literature on the prevalence of the JP2 clone of Aggregatibacter actinomycetemcomitans (A.a.) and on its association with presence and progression of periodontitis in different populations. A systematic search of the literature was conducted in Medline, Embase and Cochrane Library for studies reporting data on detection of the JP2 clone of A.a. A total of 56 papers were included in the review, from an initial search of 685 titles. Studies were carried out in populations with a mean age of 26.34 years (range 6.24-53.85 years). Just over 16% of the overall population assessed (n = 13 751) had the JP2 clone detected. Meta-analyses included 16 studies and 1775 patients, and revealed an association between detection of the JP2 clone and diagnosis of periodontitis (RR = 1.86, 95% 1.43-2.42) from saliva and plaque, with high heterogeneity (I = 85%, p < .00001). Meta-analyses included 5 studies and 616 patients, and revealed an association between baseline detection of the JP2 clone and onset of periodontitis over 2 to 5 years (RR = 4.12, 95% 2.42-7.00), with high heterogeneity (I = 81%, p < .0003). From the overall risk of bias score, 29 papers were judged as low risk of bias, whilst the remaining papers were judged to have an overall medium or high risk of bias. Detection of the JP2 clone of A.a. in subgingival plaque and saliva samples is associated with increased odds of diagnosis of periodontitis and may be able to predict onset of periodontitis. This systematic review provides clear evidence that in certain populations, the JP2 clone of A.a. is associated with early-onset periodontitis. Furthermore, detection of this bacterium seems to be predictive of disease onset.
Topics: Humans; Child; Adolescent; Young Adult; Adult; Middle Aged; Aggregatibacter actinomycetemcomitans; Exotoxins; Aggressive Periodontitis; Dental Plaque; Clone Cells
PubMed: 36987541
DOI: 10.1111/jre.13102 -
BMC Oral Health Mar 2023Ultrasonically-activated irrigation (UAI) is effective in root canal irrigation but may damage canal walls. EDDY is a sonic activation system with flexible working tips... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Ultrasonically-activated irrigation (UAI) is effective in root canal irrigation but may damage canal walls. EDDY is a sonic activation system with flexible working tips that cause no harm to dentinal walls. This review explores the intracanal cleaning efficacy of EDDY compared with UAI in vitro.
METHODS
The systematic review was registered in the PROSPERO database (CRD42021235826). A literature search was conducted in six electronic databases. In vitro studies that compared the removal of smear layer, debris, soft tissue or microbes in root canals between EDDY and UAI were included. Data extraction and quality assessment were performed. Meta-analyses were conducted on smear layer removal and debris elimination with the standardized mean difference (SMD). Heterogeneity was measured using the I test and the Chi test. The random-effect model was used when I > 50%, or p < 0.1, otherwise the fixed-effect model was applied. The level of significance was set at p < 0.05.
RESULTS
19 articles were included in this systematic review and 7 articles were included in meta-analyses. Meta-analyses on smear layer removal showed unimportant differences between EDDY and UAI at any canal third (coronal [SMD = 0.08, 95% confidence interval (95%CI): -0.29 to 0.45; p = 0.44, I = 0%]; middle [SMD = 0.02, 95% CI: -0.44 to 0.47; p = 0.94, I = 0%]; apical [SMD = 0.01, 95%CI: -0.35 to 0.38; p = 0.70, I = 0%]). Meta-analyses on debris removal evaluated by scanning electron microscope (coronal [SMD = 0.03, 95% CI: -0.41 to 0.46; p = 0.27, I = 23%]; middle [SMD = -0.24, 95% CI: -0.83 to 0.35; p = 0.80, I = 0%]; apical [SMD = 0.24, 95%CI: -0.20 to 0.67; p = 0.36, I = 2%]) and micro-CT (SMD = 0.36, 95% CI: -0.67 to 1.40; p = 0.03, I = 70%) both found insignificant differences. No meta-analysis was undertaken on soft-tissue removal and disinfection due to the various study designs, but the qualitative analyses implied that EDDY achieved similar performance to UAI in both aspects.
CONCLUSIONS
Limited evidence indicated that EDDY was comparable to UAI in removing smear layer, debris, soft tissue and microbes ex vivo. Considering UAI may damage canal walls, EDDY might be a substitute for UAI in irrigation activation. But more randomized clinical trials are required to explore the clinical extrapolation of the results in this review.
Topics: Humans; Dental Pulp Cavity; Root Canal Preparation; Smear Layer; Root Canal Irrigants; Therapeutic Irrigation; Microscopy, Electron, Scanning; Sodium Hypochlorite
PubMed: 36932445
DOI: 10.1186/s12903-023-02875-6 -
The Journal of Clinical Pediatric... Mar 2023This paper systematically evaluate the effects of probiotics on preventing caries in preschool children. The present systematic review was conducted following the... (Meta-Analysis)
Meta-Analysis
This paper systematically evaluate the effects of probiotics on preventing caries in preschool children. The present systematic review was conducted following the Transparent Reporting of Systematic Reviews and Meta-Analyses (PRISMA) guidelines and recorded in the International prospective register of systematic reviews (PROSPERO) database (registration no: CRD42022325286). Literature were screened from PubMed, Embase, Web of Sciences, China National Knowledge Infrastructure (CNKI), Wanfang and other databases from inception to April 2022 to identify randomized controlled trials on the clinical efficacies of probiotics in preventing dental caries in preschool children and extract relevant data. The meta-analysis was performed using the RevMan5.4 software and the Stata16. Cochrane handbook was used to assess the risk of bias. The Grading of Recommendations Assessment, Development and Evaluation (GRADEprofiler 3.6) was used to determine the evidence quality. A total of 17 randomized controlled trials were eligible, of which two trials had certain levels of bias and 15 had a low risk of bias. Evidence quality assessment showed that the included trials were of medium quality. The meta-analysis results showed that was associated with a reduced incidence ( = 0.005) and progression ( < 0.001) of caries in preschool children. Probiotics could reduce the number of high-level Streptococcus mutans in saliva ( 0.00001) but could not reduce the number of Streptococcus mutans in dental plaque nor the amount of Lactobacillus in the saliva and dental plaque. Current evidence shows that probiotics could prevent caries in preschool children, but was more effective in preventing caries than others. Although probiotics could reduce high levels of Streptococcus mutans in saliva, they could not reduce the amount of Lactobacillus in saliva and dental plaque.
Topics: Humans; Child, Preschool; Dental Caries; Dental Plaque; Dental Caries Susceptibility; Streptococcus mutans; Lactobacillus; Probiotics
PubMed: 36890746
DOI: 10.22514/jocpd.2023.014