In Vitro Simulation and In Vivo Assessment of Tooth Wear: A Meta-Analysis of In Vitro and Clinical Research

Tooth wear may be described as a side-effect of occlusal forces that may be further induced by the common use of contemporary prosthetic materials in practice. The purpose of this systematic review was to appraise existing evidence on enamel wear from both in vitro and clinical research and explore whether evidence from these study designs lies on the same direction. Five databases of published and unpublished research were searched without limitations in August 2019 and study selection criteria included in vitro and clinical research on enamel tooth wear. Study selection, data extraction, and risk of bias assessment were done independently and in duplicate. Random effects meta-analyses of standardized mean differences (SMDs) or weighted mean differences (WMDs) with 95% confidence intervals (CIs) were conducted while a Monte Carlo permutation test for meta-regression on the exploration of the effect of the study design on the reported outcomes was planned. A total of 27 studies (23 in vitro and 4 clinical) were eligible while 12 contributed to meta-analyses. Overall, some concerns were raised for the quality of the existing evidence and the potential for risk of bias. Enamel wear (mm) of antagonist teeth was more pronounced when opposed to conventional porcelain compared to machinable ceramics (SMD = 2.18; 95%CIs: 1.34, 3.02; p < 0.001). Polished zirconia resulted in decreased volumetric enamel wear (mm3) of opposing teeth compared to pure natural enamel (SMD = –1.06; 95%CIs: –1.73, –0.39; p = 0.002). Monolithic zirconia showed evidence of enhanced potential for antagonist wear (μm) compared to natural teeth (WMD = 107.38; 95%CIs: 30.46, 184.30; p = 0.01). Study design did not reveal an effect on the tooth wear outcome for the latter comparison when both clinical and in vitro studies were considered (three studies; Monte Carlo test, p = 0.66). In conclusion, there is an overriding need for additional evidence from clinical research to substantiate the findings from the already existing laboratory simulation studies.

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Acupuncture for Tourette Syndrome: A Systematic Review

Evidence-based Complementary and Alternative Medicine ◽

10.1155/2016/1834646 ◽

2016 ◽

Vol 2016 ◽

pp. 1-10 ◽

Cited By ~ 6

Author(s):

Jinna Yu ◽

Yongming Ye ◽

Jun Liu ◽

Yang Wang ◽

Weina Peng ◽

...

Keyword(s):

Tourette Syndrome ◽

Western Medicine ◽

Data Extraction ◽

Cochrane Collaboration ◽

Fixed Effect Model ◽

Study Selection ◽

Mean Differences ◽

Randomised Controlled ◽

Meta Analyses ◽

The Cochrane Collaboration

Tourette syndrome (TS) is a neuropsychiatric disorder that affects both children and adults. We searched for randomised controlled trials (RCTs) using acupuncture to treat TS written in English or Chinese without restrictions on publication status. Study selection, data extraction, and assessment of study quality were conducted independently by two reviewers. Meta-analyses were performed using Review Manager (RevMan) 5.3 software from the Cochrane Collaboration. Data were combined with the fixed-effect model based on a heterogeneity test. Results were presented as risk ratios for dichotomous data and mean differences (MDs) for continuous data. This review included 7 RCTs with a total of 564 participants. The combined results showed that acupuncture may have better short-term effect than Western medicine for TS and that acupuncture may be an effective adjuvant therapy in improving the effect of Western medicine on TS, but the evidence is limited because of existing biases. Rigorous high-quality RCTs are needed to verify these findings.

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Aromatherapy for Symptom Relief in Patients with Burn: A Systematic Review and Meta-Analysis

Medicina ◽

10.3390/medicina58010001 ◽

2021 ◽

Vol 58 (1) ◽

pp. 1

Author(s):

Hye Won Lee ◽

Lin Ang ◽

Jung Tae Kim ◽

Myeong Soo Lee

Keyword(s):

Systematic Review ◽

Data Extraction ◽

Meta Analysis ◽

Symptom Relief ◽

Routine Care ◽

Risk Of Bias ◽

Review Author ◽

Beneficial Effects ◽

Study Selection ◽

Meta Analyses

Background and Objectives: This review aimed to provide an updated review of evidence regarding the effects of aromatherapy in relieving symptoms of burn injuries, focusing on pain and physiological distress. Materials and Methods: Fifteen databases (including five English databases, four Korean medical databases, and four Iranian databases) and trial registries were searched for studies published between their dates of inception and July 2021. Two review authors individually performed study selection, data extraction, and risk of bias assessment, and any discrepancies were solved by a third review author. Results: Eight RCTs met our inclusion criteria and were analyzed in this updated systematic review. Our meta-analyses revealed that inhaled aromatherapy plus routine care showed beneficial effects in relieving pain after dressing, as compared to placebo plus routine care (p < 0.00001) and routine care alone (p = 0.02). Additionally, inhaled aromatherapy plus routine care (p < 0.00001) and aromatherapy massage plus routine care (p < 0.0001) also showed superior effects in calming anxiety, as compared to routine care alone. None of the included studies reported on AEs. Overall, the risk of bias across the studies was concerning. Conclusions: This updated review and synthesis of the studies had brought a more detailed understanding of the potential application of aromatherapy for easing the pain and anxiety of burn patients.

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Systematic Review and Meta-analyses of Effects of Phosphate-lowering Agents in Non-dialysis Chronic Kidney Disease

Journal of the American Society of Nephrology ◽

10.1681/asn.2021040554 ◽

2021 ◽

pp. ASN.2021040554

Author(s):

Nicole Lioufas ◽

Elaine Pascoe ◽

Carmel Hawley ◽

Grahame Elder ◽

Sunil Badve ◽

...

Keyword(s):

Systematic Review ◽

Chronic Kidney Disease ◽

Kidney Disease ◽

Clinical Outcomes ◽

Serum Phosphate ◽

Risk Of Bias ◽

Lowering Therapy ◽

Mean Differences ◽

Meta Analyses

Background: Benefits of phosphate-lowering interventions on clinical outcomes in patients with chronic kidney disease (CKD) are unclear; systematic reviews have predominantly involved dialysis patients. This study aimed to summarize evidence from randomized controlled trials (RCTs) concerning benefits and risks of non-calcium-based phosphate-lowering treatment in non-dialysis CKD. Methods: We conducted a systematic review and meta-analyses of RCTs involving noncalcium-based phosphate-lowering therapy compared to placebo, calcium-based binders, or no study medication, in adults with CKD not on dialysis or post-transplant. RCTs had ≥3 months follow up and outcomes included biomarkers of mineral metabolism, cardiovascular parameters, and adverse events. Outcomes were meta-analyzed using the Sidik-Jonkman method for random effects. Unstandardized mean differences were used as effect sizes for continuous outcomes, with common measurement units and Hedge's g standardized mean differences (SMD) otherwise. Odds ratios were used for binary outcomes. Cochrane risk of bias and GRADE assessment determined the certainty of evidence. Results: Twenty trials involving 2,498 participants (median sample size 120, median follow up 9 months) were eligible for inclusion. Overall, risk of bias was low. Compared with placebo, non calcium-based phosphate binders reduced serum phosphate (12 trials, weighted mean difference -0.37, 95% CI -0.58,-0.15 mg/dL, low certainty evidence) and urinary phosphate excretion (8 trials, SMD -0.61, 95% CI -0.90,-0.31, low certainty evidence), but resulted in increased constipation (9 trials, log odds ratio [OR] 0.93, 95% CI 0.02, 1.83, low certainty evidence) and greater vascular calcification score (3 trials, SMD 0.47, 95% CI 0.17, 0.77, very low certainty evidence). Data for effects of phosphate-lowering therapy on cardiovascular events (log OR 0.51 [95% CI -0.51, 1.17]) and death were scant. Conclusions: Non-calcium-based phosphate-lowering therapy reduced serum phosphate and urinary phosphate excretion, but there was an unclear effect on clinical outcomes and intermediate cardiovascular end-points. Adequately powered RCTs are required to evaluate benefits and risks of phosphate-lowering therapy on patient-centered outcomes.

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Effect of NaF, SnF2, and TiF4Toothpastes on Bovine Enamel and Dentin Erosion-Abrasion In Vitro

International Journal of Dentistry ◽

10.1155/2012/134350 ◽

2012 ◽

Vol 2012 ◽

pp. 1-6 ◽

Cited By ~ 10

Author(s):

Lívia Picchi Comar ◽

Marina Franciscon Gomes ◽

Naiana Ito ◽

Priscila Aranda Salomão ◽

Larissa Tercília Grizzo ◽

...

Keyword(s):

Artificial Saliva ◽

Tooth Wear ◽

Metal Fluoride ◽

Tooth Erosion ◽

Electric Toothbrush ◽

Bovine Enamel ◽

Enamel Wear ◽

Dentin Erosion

The aim of this study was to compare the effect of toothpastes containing TiF4, NaF, and SnF2on tooth erosion-abrasion. Bovine enamel and dentin specimens were distributed into 10 groups (n=12): experimental placebo toothpaste (no F); NaF (1450 ppm F); TiF4(1450 ppm F); SnF2(1450 ppm F); SnF2(1100 ppm F) + NaF (350 ppm F); TiF4(1100 ppm F) + NaF (350 ppm F); commercial toothpaste Pro-Health (SnF2—1100 ppm F + NaF—350 ppm F, Oral B); commercial toothpaste Crest (NaF—1.500 ppm F, Procter & Gamble); abrasion without toothpaste and only erosion. The erosion was performed 4 × 90 s/day (Sprite Zero). The toothpastes’ slurries were applied and the specimens abraded using an electric toothbrush 2 × 15 s/day. Between the erosive and abrasive challenges, the specimens remained in artificial saliva. After 7 days, the tooth wear was evaluated using contact profilometry (μm). The experimental toothpastes with NaF, TiF4, SnF2, and Pro-Health showed a significant reduction in enamel wear (between 42% and 54%). Pro-Health also significantly reduced the dentin wear. The toothpastes with SnF2/NaF and TiF4/NaF showed the best results in the reduction of enamel wear (62–70%) as well as TiF4, SnF2, SnF2/NaF, and TiF4/NaF for dentin wear (64–79%) (P<0.05). Therefore, the experimental toothpastes containing both conventional and metal fluoride seem to be promising in reducing tooth wear.

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Reliability of Mouse Behavioural Tests of Anxiety: a Systematic Review and Meta-Analysis on the Effects of Anxiolytics.

10.1101/2021.07.28.454267 ◽

2021 ◽

Author(s):

Marianna Rosso ◽

Robin Wirz ◽

Ariane Vera Loretan ◽

Nicole Alessandra Sutter ◽

Charlène Tatiana Pereira da Cunha ◽

...

Keyword(s):

Systematic Review ◽

Meta Analysis ◽

Risk Of Bias ◽

Control Treatment ◽

Test Results ◽

Animal Models Of Anxiety ◽

Mean Differences ◽

Behavioural Tests ◽

Meta Analyses ◽

Quality Checklist

Animal research on anxiety and anxiety disorders relies on valid animal models of anxiety. However, the validity of widely used rodent behavioural tests of anxiety has repeatedly been questioned, as they often fail to produce consistent results across independent replicate studies using different study populations or different anxiolytic compounds. In this study, we assessed the sensitivity of behavioural tests of anxiety in mice to detect anxiolytic effects of drugs prescribed to treat anxiety in humans. To this end, we conducted a pre-registered systematic review of studies reporting tests of anxiolytic compounds against a control treatment using common behavioural tests of anxiety in mice. PubMed and EMBASE were searched on August 21 st 2019 for studies published in English and 814 papers were identified for inclusion. Risk of bias was assessed based on Syrcle’s risk of bias tool and the Camarades study quality checklist on a randomly selected subsample of 180 papers. Meta-analyses on effect sizes of treatments using standardized mean differences (Hedges’ g) showed that only two of 17 test measures reliably detected effects of anxiolytic compounds other than diazepam. Further, we report considerable variation in both direction and size of effects of most anxiolytics on most outcome variables, indicating poor replicability of test results. This was corroborated by high heterogeneity in most test measures. Finally, we found an overall high risk of bias. Our findings indicate a general lack of sensitivity of common behavioural tests of anxiety in mice to anxiolytic compounds and cast serious doubt on both construct and predictive validity of most of those tests. The use of animals to model human conditions can be justified only if the expected results are informative, reproducible, and translatable. In view of scientifically valid and ethically responsible research, we call for a revision of behavioural tests of anxiety in mice and the development of more predictive tests .

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Evaluation of the efficacy of casein phosphopeptide-amorphous calcium phosphate on remineralization of white spot lesions in vitro and clinical research: A systematic review and meta-analysis

10.21203/rs.2.13495/v3 ◽

2019 ◽

Author(s):

Xueling Ma ◽

Xuandong Lin ◽

Tengfei Zhong ◽

Fangfang Xie

Keyword(s):

Systematic Review ◽

Clinical Research ◽

Methodological Quality ◽

Meta Analysis ◽

Risk Of Bias ◽

White Spot Lesions ◽

Average Surface Roughness ◽

Average Surface ◽

Casein Phosphopeptide

Abstract Background: This systematic review with meta-analyses sought to answer whether casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) provided a remineralizing benefit superior to that of nonintervention or placebo. Methods: The Cochrane databases, PubMed, EmBase, and Ovid up to May 20th, 2019, were scanned, only published in English. Study information extraction and methodological quality assessments were accomplished independently by two reviewers. The “Criteria for judging risk of bias in the ‘Risk of bias’ assessment tool” was used for methodological quality assessment. The continuous data was analyzed by mean difference (MD) or standardized mean difference (SMD) with a 95% confidence interval (CI). Review Manager 5.3 was used for statistical analysis. Outcome variables include quantitative light-induced fluorescence in clinical research, average surface roughness and surface microhardness in vitro. Results: There were significant differences in the quantitative light-induced fluorescence (SMD = −0.43, 95% CI: [−0.79, −0.07], P = 0.02), average surface roughness (SMD = −8.21, 95% CI: [−10.37, −6.04], P < 0.01), Vickers microhardness (SMD = 1.19, 95% CI: [0.72, 1.66], P < 0.01), and Knoop microhardness (SMD = 3.52, 95% CI: [2.68, 4.36], P < 0.01) between the CPP-ACP and control groups or baseline. Conclusion: Within the limitations of this meta-analysis, CPP-ACP exhibited excellent remineralization effects evaluated in clinical research and in vitro, indicating outstanding restoration of form, aesthetics, and function in treating white spot lesions.

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Evaluation of the efficacy of casein phosphopeptide-amorphous calcium phosphate on remineralization of white spot lesions in vitro and clinical research: A systematic review and meta-analysis

10.21203/rs.2.13495/v4 ◽

2019 ◽

Author(s):

Xueling Ma ◽

Xuandong Lin ◽

Tengfei Zhong ◽

Fangfang Xie

Keyword(s):

Systematic Review ◽

Clinical Research ◽

Methodological Quality ◽

Meta Analysis ◽

Risk Of Bias ◽

White Spot Lesions ◽

Average Surface Roughness ◽

Average Surface ◽

Casein Phosphopeptide

Abstract Abstract Background: This systematic review with meta-analyses sought to answer whether casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) provided a remineralizing benefit superior to that of nonintervention or placebo. Methods: The Cochrane databases, PubMed, EmBase, and Ovid up to May 20th, 2019, were scanned, only published in English. Study information extraction and methodological quality assessments were accomplished independently by two reviewers. The “Criteria for judging risk of bias in the ‘Risk of bias’ assessment tool” was used for methodological quality assessment. The continuous data was analyzed by mean difference (MD) or standardized mean difference (SMD) with a 95% confidence interval (CI). Review Manager 5.3 was used for statistical analysis. Outcome variables include quantitative light-induced fluorescence in clinical research, average surface roughness and surface microhardness in vitro. Results: There were significant differences in the quantitative light-induced fluorescence (SMD = −0.43, 95% CI: [−0.79, −0.07], P = 0.02), average surface roughness (SMD = −8.21, 95% CI: [−10.37, −6.04], P < 0.01), Vickers microhardness (SMD = 1.19, 95% CI: [0.72, 1.66], P < 0.01), and Knoop microhardness (SMD = 3.52, 95% CI: [2.68, 4.36], P < 0.01) between the CPP-ACP and control groups or baseline. Conclusion: Within the limitations of this meta-analysis, CPP-ACP exhibited excellent remineralization effects evaluated in clinical research and in vitro, indicating outstanding restoration of form, aesthetics, and function in treating white spot lesions.

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Evaluation of the efficacy of casein phosphopeptide-amorphous calcium phosphate on remineralization of white spot lesions in vitro and clinical research: a systematic review and meta-analysis

BMC Oral Health ◽

10.1186/s12903-019-0977-0 ◽

2019 ◽

Vol 19 (1) ◽

Cited By ~ 6

Author(s):

Xueling Ma ◽

Xuandong Lin ◽

Tengfei Zhong ◽

Fangfang Xie

Keyword(s):

Systematic Review ◽

Clinical Research ◽

Methodological Quality ◽

Meta Analysis ◽

Risk Of Bias ◽

White Spot Lesions ◽

Average Surface Roughness ◽

Average Surface ◽

Casein Phosphopeptide

Abstract Background This systematic review with meta-analyses sought to answer whether casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) provided a remineralizing benefit superior to that of nonintervention or placebo. Methods Following Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines, Cochrane databases, PubMed, EmBase, and Ovid up to May 20th, 2019, were scanned, only published in English. Study information extraction and methodological quality assessments were accomplished independently by two reviewers. The “Criteria for judging risk of bias in the ‘Risk of bias’ assessment tool” was used for methodological quality assessment. The continuous data was analyzed by mean difference (MD) or standardized mean difference (SMD) with a 95% confidence interval (CI). Review Manager 5.3 was used for statistical analysis. Outcome variables include quantitative light-induced fluorescence in clinical research, average surface roughness and surface microhardness in vitro. Results There were significant differences in the quantitative light-induced fluorescence (SMD = − 0.43, 95% CI: [− 0.79, − 0.07], P = 0.02), average surface roughness (SMD = − 8.21, 95% CI: [− 10.37, − 6.04], P < 0.01), Vickers microhardness (SMD = 1.19, 95% CI: [0.72, 1.66], P < 0.01), and Knoop microhardness (SMD = 3.52, 95% CI: [2.68, 4.36], P < 0.01) between the CPP-ACP and control groups or baseline. Conclusion Within the limitations of this meta-analysis, CPP-ACP exhibited excellent remineralization effects evaluated in clinical research and in vitro, indicating outstanding restoration of form, aesthetics, and function in treating white spot lesions.

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Evaluation of Remineralizing Efficacy of Calcium Sucrose Phosphate: A Systematic Review of In Vitro Studies

The Journal of Indian Orthodontic Society ◽

10.1177/0301574219862499 ◽

2019 ◽

Vol 53 (3) ◽

pp. 171-182

Author(s):

Ashok Karad ◽

Prashant Dhole

Keyword(s):

Calcium Phosphate ◽

Amorphous Calcium Phosphate ◽

Risk Of Bias ◽

White Spot ◽

Secondary Outcome ◽

White Spot Lesion ◽

Casein Phosphopeptide ◽

Meta Analyses ◽

Sucrose Phosphate

Background: Despite improved oral hygiene regime and availability of preventive formulations, dental caries continues to be a global dental problem. Calcium sucrose phosphate (CaSP) is a remineralizing agent with cariostatic action, which is commonly available in the form of tooth cream. Considering the paucity of evidence, this systematic literature review aims to evaluate the remineralizing efficacy of CaSP. Methodology: The review was conducted as per Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. Various databases, including PubMed, Cochrane Central, and Google Scholar, were searched until March 15, 2018 and were assessed for inclusion by two independent reviewers. The primary outcome was to assess the remineralizing efficacy of CaSP, and the secondary outcome was to assess the potential of CaSP in arresting white spot lesion(s) on enamel. Results: Out of 2,876 articles, only 13 were qualified for inclusion. Included studies presented a low risk of bias for the following items: caries-free teeth or restoration, and adherence to manufacture’s instruction for the usage of remineralizing agent in the risk of bias scale. Ten studies reported an increase in the microhardness of enamel after CaSP application, and three studies reported the effect of CaSP on arresting white spot lesion(s). CaSP was found to be a better remineralizing agent in comparison to casein phosphopeptide-amorphous calcium phosphate (CPP-ACP), casein phosphopeptide-amorphous calcium phosphate with fluoride (CPP-ACPF) and other remineralizing agents in terms of increasing microhardness of enamel. In addition, CaSP application was also found to have a beneficial effect in restoring the color of white spot lesion(s) to that of normal enamel. Conclusion: CaSP tooth cream was found to be an effective remineralizing agent, compared to others, such as CPP-ACP and CPP-ACPF, in terms of increasing the mean microhardness of enamel and arresting white spot lesion(s).

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A Methodological and Reporting Quality Assessment of Systematic Reviews/Meta-Analyses about Chinese Medical Treatment for Gastroesophageal Reflux Disease

Gastroenterology Research and Practice ◽

10.1155/2020/3868057 ◽

2020 ◽

Vol 2020 ◽

pp. 1-19

Author(s):

Zipan Lyu ◽

Zhongyu Huang ◽

Fengbin Liu ◽

Zhengkun Hou

Keyword(s):

Medical Treatment ◽

Systematic Reviews ◽

Methodological Quality ◽

Reporting Quality ◽

Risk Of Bias ◽

Selection Methods ◽

Study Selection ◽

Protocol Registration ◽

Meta Analyses

Objective. To access the methodological and reporting quality of systematic reviews (SRs)/meta-analyses (MAs) about Chinese medical treatment for gastroesophageal reflux disease (GERD). Methods. The PubMed, Wanfang Data, China National Knowledge Infrastructure (CNKI), Chinese Science and Technology Periodical Database (VIP), Chinese Biomedical (CBM), Web of Science, and Cochrane Library databases were searched from inception to June 2020. Two researchers independently screened the literature considering the eligibility criteria. Overview Quality Assessment Questionnaire (OQAQ), Assessment of Multiple Systematic Reviews 2 (AMSTAR 2), and Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were used to assess the methodological and reporting quality of the included reports. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) system was used to evaluate the level of evidence in each report. Results. Thirty-three SRs/MAs met the inclusion criteria. The OQAQ results showed that defects in the methodological quality of 17/32 reports were major, with scores of 3 points. Analyzing a single item as the object, search strategies (item 2), and risk of bias in individual studies (item 4) was considered poor. The AMSTAR 2 results showed that 25.4% of the items were not reported, and 7.8% of the items were only partially reported. The overall assessment of AMSTAR 2 showed the majority of systematic reviews and meta-analyses were of low/very low (31/33, 93.9%) methodological quality, with a lack of protocol registration and excluded study list. The PRISMA results showed that 19.9% of items were not reported, and 15.2% of items were only partially reported, due to a lack of protocol registration and study selection methods. The methodological and reporting quality of the included studies was generally poor. Evidence evaluation with GRADE showed that most (31/33) of the included studies had low or very low levels of evidence. Conclusion. The methodological and reporting quality of SRs/MAs about Chinese medical treatment for GERD is generally poor. The main problems included incomplete search strategies, risk of bias in individual studies, the lack of protocol registration and excluded study list, and incorrect study selection methods.

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