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Jin P, Wang L, Chen D, Chen Y. Unveiling the complexity of early childhood caries: Candida albicans and Streptococcus mutans cooperative strategies in carbohydrate metabolism and virulence. J Oral Microbiol 2024; 16:2339161. [PMID: 38606339 PMCID: PMC11008315 DOI: 10.1080/20002297.2024.2339161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/01/2024] [Indexed: 04/13/2024] Open
Abstract
Objective To explore the mechanisms underlying the virulence changes in early childhood caries (ECC) caused by Candida albicans (C. albicans) and Streptococcus mutans (S. mutans), with a focus on carbohydrate metabolism and environmental acidification. Methods A review of literature was conducted to understand the symbiotic relationship between C. albicans and S. mutans, and their role in the pathogenesis of ECC. The review also examined how their interactions influence carbohydrate metabolism and environmental acidification in the oral cavity. Results C. albicans and S. mutans play crucial roles in the onset and progression of ECC. C. albicans promotes the adhesion and accumulation of S. mutans, while S. mutans creates an environment favorable for the growth of C. albicans. Their interactions, especially through carbohydrate metabolism, strengthen their pathogenic potential. The review highlights the importance of understanding these mechanisms for the development of effective management and treatment protocols for ECC. Conclusion The symbiotic relationship between C. albicans and S. mutans, and their interactions through carbohydrate metabolism and environmental acidification, are key factors in the pathogenesis of ECC. A comprehensive understanding of these mechanisms is crucial for developing effective strategies to manage and treat ECC.
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Affiliation(s)
- Pingping Jin
- Wuxi Maternal and Child Health Hospital, Wuxi School of Medicine, Jiangnan University, Jiangsu, China
| | - Lu Wang
- Wuxi Maternal and Child Health Hospital, Wuxi School of Medicine, Jiangnan University, Jiangsu, China
| | - Daozhen Chen
- Wuxi Maternal and Child Health Hospital, Wuxi School of Medicine, Jiangnan University, Jiangsu, China
| | - Yu Chen
- Wuxi Maternal and Child Health Hospital, Wuxi School of Medicine, Jiangnan University, Jiangsu, China
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Zheng FM, Yan IG, Duangthip D, Lo ECM, Gao SS, Chu CH. Caries Prevention Using Silver Diamine Fluoride: A 12-Month Clinical Trial. Int Dent J 2023; 73:667-673. [PMID: 36682908 PMCID: PMC10509425 DOI: 10.1016/j.identj.2022.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/09/2022] [Accepted: 12/11/2022] [Indexed: 01/21/2023] Open
Abstract
OBJECTIVE This clinical trial aimed to compare the caries-preventive effect of annual application of 38% silver diamine fluoride solution (SDF) with 5% sodium fluoride varnish (FV) to the anterior primary teeth of children. The hypothesis was that SDF was superior to FV at 1 year. Secondary objectives were to determine the child's cooperation and the parent's satisfaction and assess adverse effects. METHOD We recruited 688 3- to 4-year-old children and randomly allocated them to receive SDF or FV (positive control) on their 6 upper anterior teeth. Tooth-surface status was recorded using the decayed, missing, and filled surfaces index. A trained observer rated the child's cooperation as "totally cooperative" or "not totally cooperative." We used a questionnaire to determine the parent's satisfaction as "satisfied," "neutral," or "dissatisfied." Adverse effects (yes/no) were evaluated 1 day and about 1 year after treatment. RESULTS Of the children, 434 (SDF, n = 209; FV, n = 225) completed the trial. The mean new decayed tooth surfaces developed for SDF and FV groups were 0.4 ± 1.5 and 0.4 ± 1.3, respectively (P = .65). Child's cooperation for SDF and FV therapy was 71% (244/344) and 70% (241/344), respectively (P = .89). Parent's satisfaction for SDF and FV therapy was 71% (148/209) and 69% (155/225), respectively (P = .29). Adverse effects were found neither at 1 day nor at about 1 year after treatment for either treatment arm. CONCLUSIONS SDF is not superior to FV for caries prevention in primary upper anterior teeth at 1-year follow-up. Child's cooperation and parent's satisfaction were similarly high with SDF and FV therapy at 1-year follow-up. Neither short-term nor long-term adverse effects were observed. This study is registered at ClinicalTrials.gov (NCT04399369).
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Affiliation(s)
| | - Iliana Gehui Yan
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | | | | | - Sherry Shiqian Gao
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China; Department of Stomatology, School of Medicine, Xiamen University, Xiamen, China.
| | - Chun Hung Chu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China.
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Cabalén MB, Molina GF, Bono A, Burrow MF. Nonrestorative Caries Treatment: A Systematic Review Update. Int Dent J 2022; 72:746-764. [PMID: 35879115 PMCID: PMC9676527 DOI: 10.1016/j.identj.2022.06.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/16/2022] [Accepted: 06/26/2022] [Indexed: 11/29/2022] Open
Abstract
Caries is the most prevalent chronic noncommunicable disease. Strategies to prevent its onset and early interventions to arrest the progression of early lesions have been emphasised throughout recent decades to avoid or delay the restorative spiral of the tooth. More individuals are retaining their natural teeth into old age, thereby necessitating ongoing restorative dentistry intervention for their maintenance. The aim of this systematic review was to update the state of the art regarding clinical studies reporting the effectiveness of different nonrestorative caries treatment options in the 5-year period from 2017 to 2022. Relevant articles were retrieved from 2 electronic databases, including randomised clinical trials (RCTs) published from January 2017 until April 2022, assessing effectiveness and secondary effects of at least one nonrestorative caries treatment option, carried out with adults and/or children with noncavitated or cavitated carious lesions on either primary or permanent teeth and diagnosed by radiographs or visual/tactile assessment. All 35 included articles presented the results of RCTs with a follow-up period ranging from 6 to 84 months. Most of these studies were considered high-quality articles with a low risk of bias. Sealants and fluoride gels and varnishes were mentioned in 12 studies as effective strategies to prevent the onset of caries lesions and to arrest them in the early stages. Resin infiltration reported high caries arresting rates in noncavitated proximal lesions in 10 publications. Silver diammine fluoride presented high caries-arresting rates in open dentin lesions, both in primary and permanent dentitions as well as in root caries lesions that were accessible for cleansing. New evidence has been published between 2017 and 2022 as the result of numerous clinical studies providing further evidence of the effectiveness of nonrestorative caries treatment options.
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Affiliation(s)
- María Belén Cabalén
- Cátedra de Materiales Dentales, Facultad de Ciencias de la Salud, Universidad Católica de Córdoba, Argentina
| | - Gustavo Fabián Molina
- Cátedra de Materiales Dentales, Facultad de Ciencias de la Salud, Universidad Católica de Córdoba, Argentina; Division of Restorative Dental Sciences, Faculty of Dentistry, University of Hong Kong, Hong Kong SAR China.
| | - Alejandra Bono
- Cátedra de Periodoncia, Faculty of Dentistry, Universidad Nacional de Córdoba, Argentina
| | - Michael F Burrow
- Division of Restorative Dental Sciences, Faculty of Dentistry, University of Hong Kong, Hong Kong SAR China
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Singal K, Sharda S, Gupta A, Malik VS, Singh M, Chauhan A, Aggrawal A, Pradhan P, Singh M. Effectiveness of Calcium Phosphate derivative agents on the prevention and remineralization of caries among children- A systematic review & meta-analysis of randomized controlled trials. J Evid Based Dent Pract 2022; 22:101746. [DOI: 10.1016/j.jebdp.2022.101746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 04/07/2022] [Accepted: 05/01/2022] [Indexed: 12/30/2022]
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Yan IG, Zheng FM, Gao SS, Duangthip D, Lo ECM, Chu CH. Effect of application time of 38% silver diamine fluoride solution on arresting early childhood caries in preschool children: a randomised double-blinded controlled trial protocol. Trials 2022; 23:215. [PMID: 35292085 PMCID: PMC8922752 DOI: 10.1186/s13063-022-06130-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 02/24/2022] [Indexed: 11/30/2022] Open
Abstract
Background To study the caries lesion activity response to topical 38% silver diamine fluoride (SDF) therapy with increasing treatment application time. Methods/design The design is a stratified-randomised, double-blind, active-controlled, parallel-group clinical trial with nine treatment arms. The trial will involve recruiting at least 414 3- to 5-year-old kindergarten children with caries, who will receive approximately 0.004 mL of 38% SDF (the typical amount applied per the manufacturer’s instructions) to treat each caries lesion. The children will be stratified by caries status, randomised by blocks, and allocated to nine groups of SDF application times: 3, 5, 10, 15, 30, 45, 60, 120, and 180 s. The outcome measure is caries lesion activity (active/arrest) at the tooth-surface level at 6 months post-initial treatment. A calibrated dentist will conduct the blinded clinical examinations at baseline and at the 6-month follow-up. In addition, the parents will be surveyed to examine the effects of the moderating variables, such as oral hygiene, on caries lesion activity. The hypothesis is that a monotonically increasing trend can be found between the SDF application time and the proportion of caries lesions that are arrested. The Cochran-Armitage test for trends in proportions, corrected for clustering within children, will be used to determine the relationship between the exposure to SDF (the SDF application time) and the response (proportion of lesions arrested) in children, taking into consideration the effect of the moderating variables as well as the nesting of multiple caries lesions within an individual child. An EC 80 analysis (an 80% maximal concentration) will be used to determine the exposure (the SDF application time) for 80% caries lesion arrest. Bootstrap methods will be used for clustered data and will be resampled by clustering to determine the 95% confidence interval. Discussion This study will help with determining the optimal application time for SDF treatment. It will provide an evidence-based protocol for the use of SDF to arrest tooth decay in the primary teeth of young children. The results will inform an evidence-based SDF protocol to arrest caries, which affects 573 million children with tooth decay worldwide. Trial registration ClinicalTrials.gov NCT04655430. Registered on 7th December 2020. Supplementary Information The online version contains supplementary material available at 10.1186/s13063-022-06130-1.
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Affiliation(s)
- Iliana Gehui Yan
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China
| | | | - Sherry Shiqian Gao
- Department of Stomatology, School of Medicine, Xiamen University, Xiamen, Fujian Province, China
| | | | - Edward Chin Man Lo
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China
| | - Chun Hung Chu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China.
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Grohe B, Mittler S. Advanced non-fluoride approaches to dental enamel remineralization: The next level in enamel repair management. BIOMATERIALS AND BIOSYSTEMS 2021; 4:100029. [PMID: 36824571 PMCID: PMC9934497 DOI: 10.1016/j.bbiosy.2021.100029] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 09/22/2021] [Accepted: 10/26/2021] [Indexed: 12/20/2022] Open
Abstract
In modern dentistry, a minimally invasive management of early caries lesions or early-stage erosive tooth wear (ETW) with synthetic remineralization systems has become indispensable. In addition to fluoride, which is still the non-plus-ultra in these early caries/ETW treatments, a number of new developments are in the test phase or have already been commercialized. Some of these systems claim that they are comparable or even superior to fluoride in terms of their ability to remineralize enamel. Besides, their use can help avoid some of the risks associated with fluoride and support treatments of patients with a high risk of caries. Two individual non-fluoride systems can be distinguished; intrinsic and extrinsic remineralization approaches. Intrinsic (protein/peptide) systems adsorb to hydroxyapatite crystals/organics located within enamel prisms and accumulate endogenous calcium and phosphate ions from saliva, which ultimately leads to the re-growth of enamel crystals. Extrinsic remineralization systems function on the basis of the external (non-saliva) supply of calcium and phosphate to the crystals to be re-grown. This article, following an introduction into enamel (re)mineralization and fluoride-assisted remineralization, discusses the requirements for non-fluoride remineralization systems, particularly their mechanisms and challenges, and summarizes the findings that underpin the most promising advances in enamel remineralization therapy.
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Affiliation(s)
- Bernd Grohe
- Lawson Health Research Institute, St. Joseph's Hospital, London, ON, N6A 4V2 Canada,Corresponding author at: 268 Grosvenor Street, London, ON, N6A 4V2, Canada.
| | - Silvia Mittler
- Department of Physics & Astronomy, University of Western Ontario, London, ON, N6A 3K7 Canada,Department of Chemical and Biochemical Engineering, University of Western Ontario, London, ON, N6A 5B9 Canada
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Yu OY, Lam WYH, Wong AWY, Duangthip D, Chu CH. Nonrestorative Management of Dental Caries. Dent J (Basel) 2021; 9:121. [PMID: 34677183 PMCID: PMC8534976 DOI: 10.3390/dj9100121] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 10/10/2021] [Accepted: 10/12/2021] [Indexed: 11/30/2022] Open
Abstract
The World Dental Federation (FDI) policy statement in 2016 advocated evidence-based caries-control measures for managing dental caries. The caries management philosophy has shifted from the traditional surgical manners to minimal intervention dentistry. Minimal intervention dentistry aims to extend the longevity of natural teeth. It places the nonrestorative approaches as a priority. The nonrestorative approaches for caries management aim to tackle the etiological factors of dental caries. Caries can be prevented or reversed by restricting the sugar intake and its frequency in the diet, improving oral hygiene practices, and using fluoride toothpaste. This article aims to present strategies for the nonrestorative management of dental caries, which are divided into four components to address the different etiological factors of dental caries. The first component is controlling dental plaque. Strategies for plaque control include oral hygiene instruction, motivational interviewing, mechanical plaque control, and chemical plaque control. The second component for nonrestorative management is reducing the risk of caries by identifying caries risk factors and protective factors, assessing personal caries risk, and customizing a treatment plan. Evidence-based measures for caries prevention include using fluoride, and dental sealants should be provided. The third component includes topical treatment to remineralise early carious lesions. The last component is long-term follow-up. Appropriate strategy adoption for the nonrestorative management of dental caries prolongs the life span of the teeth and sustains the good oral health of patients.
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Affiliation(s)
- Ollie Yiru Yu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong; (W.Y.-H.L.); (A.W.-Y.W.); (D.D.); (C.-H.C.)
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Cariogenic Risk and COVID-19 Lockdown in a Paediatric Population. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18147558. [PMID: 34300008 PMCID: PMC8303421 DOI: 10.3390/ijerph18147558] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/09/2021] [Accepted: 07/12/2021] [Indexed: 02/06/2023]
Abstract
The Severe Acute Respiratory Syndrome Coronavirus 2 disease COVID-19 pandemic caused several lifestyle changes, especially among younger people. The study aimed to describe the impact of eating habits, lifestyle, and home oral hygiene during the COVID-19 pandemic, on the cariogenic risk in the Italian paediatric population, by using an online survey. The survey was conducted through a virtual questionnaire divided into four parts: child personal and anthropometric data; oral health; child dietary habits (KIDMED test); and child lifestyle, before and during COVID-19 lockdown. During the lockdown, only 18.6% of the participants had high adherence to a Mediterranean diet, recording an increase in sweets consumption and the number of meals (p < 0.001). In terms of lifestyle, the percentage of moderately and vigorously active children decreased (41.4% and 5.0%, respectively) (p = 0.014). The percentage of children sleeping more than 9 h increased (p < 0.001). They watched more television programs (p < 0.001). Regarding oral hygiene, children did not change their brushing habits (p = 0.225). The percentage of children using non-fluoridated toothpaste was higher (6.4%), and no changes were observed (p > 0.05). In some cases, dental pain and abscesses were declared (10% and 2.7%, respectively). This study confirms the need for campaigns to promote hygiene and dental care in combination with food education for a correct habit and promotion of a healthy and sustainable dietary style.
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Chen J, Duangthip D, Gao SS, Huang F, Anthonappa R, Oliveira BH, Turton B, Durward C, El Tantawi M, Attia D, Heima M, Muthu MS, Maharani DA, Folayan MO, Phantumvanit P, Sitthisettapong T, Innes N, Crystal YO, Ramos-Gomez F, Medina AC, Lo ECM, Chu CH. Oral Health Policies to Tackle the Burden of Early Childhood Caries: A Review of 14 Countries/Regions. FRONTIERS IN ORAL HEALTH 2021; 2:670154. [PMID: 35048013 PMCID: PMC8757786 DOI: 10.3389/froh.2021.670154] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 05/07/2021] [Indexed: 12/05/2022] Open
Abstract
Aim: Early childhood caries (ECC) has significant public health implications but has received inadequate global attention. There is limited information regarding the success of oral health policies implemented to address the challenges of ECC. This review aimed to summarize such policies to tackle ECC from different countries/regions. Method: Independent collaborators from 14 countries/regions (Australia, Brazil, Cambodia, China, Hong Kong, Egypt, India, Indonesia, Japan, Nigeria, Thailand, UK, USA, and Venezuela) collected the data. The ECC status, dental workforce, oral health policies on ECC prevention in different countries/regions were summarized by each country. Results: The findings indicated that ECC prevalence varied in different countries/regions. The lowest prevalence of ECC among 5-year-old children was found in Nigeria (7%), and the highest was found in Indonesia (90%). The existing dental workforce and resources are limited in most countries. The smallest dentist to population ratio was reported by Nigeria at 1:48,400, whereas the highest ratio was in Brazil (1:600). Out of 14, three (21%) countries namely India, Venezuela and Cambodia had no national oral health policies addressing ECC and four (29%) countries (Cambodia, China, India, Venezuela) had no publicly funded dental care program for 0-5-year-old children. Water fluoridation is available in four countries/regions (Australia, Brazil, Hong Kong, USA). Conclusion: ECC remains a global health challenge and dental workforce is limited. National/regional programs to tackle ECC are not yet prioritized in many countries/regions. Evidence to support demonstration projects is limited. Further research on the cost-effectiveness of interventions strategies is required for policymakers.
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Affiliation(s)
- Jieyi Chen
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | | | | | - Fang Huang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Robert Anthonappa
- Faculty of Health and Medical Sciences, University of Western Australia, Perth, WA, Australia
| | | | - Bathsheba Turton
- Faculty of Dentistry, University of Puthisastra, Phnom Penh, Cambodia
| | - Callum Durward
- Faculty of Dentistry, University of Puthisastra, Phnom Penh, Cambodia
| | - Maha El Tantawi
- Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - Dina Attia
- Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - Masahiro Heima
- Faculty of Dentistry, Kagoshima University, Kagoshima, Japan
| | - Murugan Satta Muthu
- Centre for Early Childhood Caries Research (CECCRe), Sri Ramachandra Institute of Higher Education and Research, Chennai, India
- Adjunct Research Associate, Centre of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates
| | | | | | | | | | - Nicola Innes
- School of Dentistry, Cardiff University, Cardiff, United Kingdom
| | - Yasmi O. Crystal
- College of Dentistry, New York University, New York, NY, United States
| | - Francisco Ramos-Gomez
- School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
| | | | | | - Chun Hung Chu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
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Karlinsey R. Fluoride Plus Calcium Phosphate Varnishes: A Possible Link between Mineral Phase Formations and Observed Clinical Outcomes. DENTAL HYPOTHESES 2021. [DOI: 10.4103/denthyp.denthyp_117_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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