Emerging Trends in Dental Caries: Insights into Etiology, Risk Factors, and Treatment Strategies

A special issue of Biomedicines (ISSN 2227-9059). This special issue belongs to the section "Microbiology in Human Health and Disease".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 5997

Special Issue Editor


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Guest Editor
Department of Dental Hygiene, Gachon University College of Medical Science, Incheon 21936, Republic of Korea
Interests: clinical outcomes; comprehensive care in oral health; geriatric considerations in dental hygiene; gerodontology; preventive strategies in oral health; remineralization and demineralization of early caries; technological advancements in dentistry
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Special Issue Information

Dear Colleagues,

We are excited to introduce this Special Issue on "Emerging Trends in Dental Caries: Insights into Etiology, Risk Factors, and Treatment Strategies." This edition seeks to explore the forefronts of research into dental caries, bridging the gaps between traditional concepts and innovative methodologies. We invite contributions that delve into the effects of antimicrobials on oral biofilm, the mechanisms of demineralization and remineralization, and the complex interactions within oral biofilms. By focusing on the early detection of dental caries, the pathogenicity of oral biofilms, and novel dental management approaches, this Special Issue aims to offer a comprehensive understanding of caries' multifactorial nature and their prevention. We encourage submissions that provide fresh perspectives on oral disease management, including original articles and comprehensive reviews.

Dr. Hee-Eun Kim
Guest Editor

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Keywords

  • antimicrobial effect
  • demineralization
  • dental caries
  • dental plaque
  • oral biofilm
  • oral disease
  • oral management
  • pathogenicity
  • prevention
  • remineralization

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Published Papers (5 papers)

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Research

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12 pages, 1233 KiB  
Article
A Randomized Clinical Study of a Curcumin and Melatonin Toothpaste Against Periodontal Bacteria
by Riccardo Pulcini, Antonio Maria Chiarelli, Bruna Sinjari, Jessica Elisabetta Esposito, Francesco Avolio, Riccardo Martinotti, Vittorio Pignatelli, Luca Pignatelli, Laura Berlincioni, Stefano Martinotti and Elena Toniato
Biomedicines 2024, 12(11), 2499; https://doi.org/10.3390/biomedicines12112499 - 31 Oct 2024
Viewed by 793
Abstract
Background: The mouth and the oropharyngeal system are home to numerous bacterial species that constitute the so-called oral microbiome and play an important role for the integrity of the oral cavity, influencing the overall health of the body, as demonstrated by several studies. [...] Read more.
Background: The mouth and the oropharyngeal system are home to numerous bacterial species that constitute the so-called oral microbiome and play an important role for the integrity of the oral cavity, influencing the overall health of the body, as demonstrated by several studies. The aim of this study was to evaluate the bacterial modulation potential of a toothpaste (bioredoxin) containing curcumin and melatonin. Both substances have anti-inflammatory properties, as documented in several scientific reports. Methods: The in vivo study we present was a single-center, double-blind trial and was conducted in parallel groups. We enlisted 20 volunteers who were randomly assigned to four distinct groups using blinded four different toothpaste preparations: a standard toothpaste indicated as placebo, a toothpaste with curcumin, a toothpaste with melatonin, and a toothpaste with melatonin and curcumin. Results: The samples from the gingival tasks were taken at time 0 and after 8 weeks of toothpaste treatment. By evaluating the DNA content of the most significant periodontal bacteria related to the total bacteria count using quantitative PCR assays, including the saprophyte component of the microbiome, we demonstrated that the Curcumin and Melatonin treatment has a statistically relevant effect on decreasing the level of periodontal pathogenic bacteria DNA. The toothpaste with the addition of curcumin and melatonin showed a modulation between t0 and t1 of the Campylobacter rectus (14,568 vs. 3532.8) and Peptostreptococcus micro (1320.8 vs. 319) bacteria. In addition, a modulation of pathogenic bacteria and saprophytic bacteria was shown. The synergistic action of the two additives would therefore appear to lead to promising results. Conclusions: Despite the fact that additional studies may be necessary in evaluating the effect of the Curcumin/melatonin combination in modulating a proposed therapeutic effect on infections of the oropharyngeal apparatus, in this report, we show for the first time that a combination of curcumin and melatonin supplemented using an oral cosmetic vehicle has the capacity to decrease the level of periodontal pathogenic bacteria, possibly ameliorating health and the physiological conditions in the buccal scenario. Full article
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14 pages, 2324 KiB  
Article
Biological, Antifungal, and Physical Efficacy of a Denture Cleanser Formulated with Cnidium officinale Extracts
by Myung-Jin Lee, Song-Yi Yang and Min-Kyung Kang
Biomedicines 2024, 12(9), 2029; https://doi.org/10.3390/biomedicines12092029 - 5 Sep 2024
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Abstract
Background/Objectives: We aimed to assess the antifungal efficacy and impact of a denture cleanser containing Cnidium officinale extract on the surface characteristics of denture base materials, as well as its physical and biological properties. Methods: The experimental denture cleansers were formulated with C. [...] Read more.
Background/Objectives: We aimed to assess the antifungal efficacy and impact of a denture cleanser containing Cnidium officinale extract on the surface characteristics of denture base materials, as well as its physical and biological properties. Methods: The experimental denture cleansers were formulated with C. officinale at concentrations of 100 and 150 μg/mL, combined with 1% cocamidopropyl betaine as a natural surfactant. Antifungal efficacy was evaluated using zone-of-inhibition assays against Candida albicans, revealing inhibition zones of 20 ± 1.8 mm for the 100 μg/mL concentration and 23.6 ± 1.6 mm for the 150 μg/mL concentration. Surface property assessments—including hardness, roughness, color stability, and solubility measurements—demonstrated no significant differences compared to the control group. Biological evaluations included the quantification of polyphenol and flavonoid content. Results: The C. officinale-based cleanser showed significant antifungal activity without affecting the hardness, roughness, color stability, or solubility of denture base materials. Biological tests revealed no cytotoxicity and minimal mucosal irritation. Polyphenol and flavonoid contents were quantitatively measured, revealing higher concentrations in the experimental groups, which were correlated with significant antifungal activity. These compounds are known for their roles in disrupting microbial processes and enhancing antimicrobial effects. These findings suggest that the C. officinale-based denture cleanser effectively inhibits C. albicans while preserving the physical properties of denture base materials. Conclusions: This study highlights the potential of C. officinale in denture cleanser formulations, promoting denture hygiene and oral health. Future research should prioritize long-term clinical evaluations and formulation optimization. Full article
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12 pages, 2201 KiB  
Article
Efficacy of F-ACP-Containing Dental Mousse in the Remineralization of White Spot Lesions after Fixed Orthodontic Therapy: A Randomized Clinical Trial
by Massimiliano Ciribè, Erika Cirillo, Martina Mammone, Giulia Vallogini, Paola Festa, Simone Piga, Gianmaria Fabrizio Ferrazzano and Angela Galeotti
Biomedicines 2024, 12(6), 1202; https://doi.org/10.3390/biomedicines12061202 - 29 May 2024
Cited by 1 | Viewed by 1450
Abstract
Fixed appliance (FA) therapy predisposes patients to white spot lesions (WSLs). The F-ACP complex (amorphous calcium phosphate nanoparticles enriched with carbonate and fluorine and coated with citrate) has been effective for in vitro enamel remineralization. The aim of this study was to evaluate [...] Read more.
Fixed appliance (FA) therapy predisposes patients to white spot lesions (WSLs). The F-ACP complex (amorphous calcium phosphate nanoparticles enriched with carbonate and fluorine and coated with citrate) has been effective for in vitro enamel remineralization. The aim of this study was to evaluate the efficacy of the F-ACP complex in remineralizing WSLs after FA therapy. One hundred and six adolescents (aged 12–20 years) were randomized into study and control groups after FA therapy. Patients in the study group were advised to use dental mousse containing F-ACP applied within Essix retainers for six months. The presence of WSLs was recorded at baseline (T0), 3 months (T1), and 6 months (T2) according to the International Caries Detection and Assessment System (ICDAS). Visual Plaque Index (VPI) and Gingival Bleeding Index (GBI) were recorded. Among 106 study participants, 91 (52 and 39 in study and control groups, respectively) completed the study. The results showed that the ICDAS score was significantly lower (p < 0.001) in the study group than in the control group between T0 and T2. The application of mousse containing the F-ACP complex inside Essix retainers for six months is effective in remineralizing white spot lesions in patients after FA therapy without side effects. Full article
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11 pages, 4194 KiB  
Article
Influence of Biofilm Maturity on the Antibacterial Efficacy of Cold Atmospheric Plasma in Oral Microcosm Biofilms
by Hee-Eun Kim
Biomedicines 2024, 12(5), 1056; https://doi.org/10.3390/biomedicines12051056 - 10 May 2024
Cited by 2 | Viewed by 1225
Abstract
As biofilms mature, biomass and extracellular polysaccharide (EPS) content increases, enhancing pathogenicity. Therefore, this study aimed to evaluate the antibacterial efficacy of cold atmospheric plasma (CAP) against oral microcosm biofilms and the influence of biofilm maturity on treatment. Oral microcosm biofilms were cultured [...] Read more.
As biofilms mature, biomass and extracellular polysaccharide (EPS) content increases, enhancing pathogenicity. Therefore, this study aimed to evaluate the antibacterial efficacy of cold atmospheric plasma (CAP) against oral microcosm biofilms and the influence of biofilm maturity on treatment. Oral microcosm biofilms were cultured on hydroxyapatite disks for 2 and 6 days. Based on the treatment and biofilm maturity, these were subsequently allocated into six groups (N = 19 each): Groups 1 and 2 were incubated with distilled water for 1 min; Groups 3 and 4 were treated with CAP for 2 min, and Groups 5 and 6 were treated with 0.12% chlorhexidine gluconate for 1 min. Groups 1, 3, and 5 represent 2-day biofilms, and Groups 2, 4, and 6 represent 6-day biofilms. Treatments were repeated daily for 5 days. Antibacterial efficacy was analyzed by measuring oral biofilms’ red fluorescence intensity (RatioR/G) and quantifying EPS content and bacterial viability. The RatioR/G was 1.089-fold and 1.104-fold higher in Groups 4 and 6 than in Groups 3 and 5 following antibacterial treatment, respectively (p < 0.001). EPS content increased by 1.71-fold in Group 6 than in Group 5 (p < 0.001). Bacterial survival rate was the lowest in Group 3 (p = 0.005). These findings underscore the relevance of CAP treatment in maintaining antibacterial efficacy regardless of the biofilm development stage, highlighting its potential utility in oral care. Full article
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13 pages, 863 KiB  
Systematic Review
Antimicrobial Efficacy of Chemomechanical Carie Removal Agents—A Systematic Integrative Review
by Adélaïde Janvier, Marie Maziere, Célia F. Rodrigues, Ana Paula Lobo and Paulo Rompante
Biomedicines 2024, 12(8), 1735; https://doi.org/10.3390/biomedicines12081735 - 2 Aug 2024
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Abstract
Background: Dental caries is the most common oral disease in the world. When treatable, the drilling method continues to be used. This technique has its disadvantages because it is invasive and nonspecific. Chemomechanical carious tissue removal agents (CCRAs) such as Carisolv™ or Papacarie [...] Read more.
Background: Dental caries is the most common oral disease in the world. When treatable, the drilling method continues to be used. This technique has its disadvantages because it is invasive and nonspecific. Chemomechanical carious tissue removal agents (CCRAs) such as Carisolv™ or Papacarie® are non-invasive products that allow for the specific elimination of infected dentin. On the other hand, cariogenic bacteria are largely responsible for the initiation and development of lesions. Objectives: The aim is to analyze whether CCRAs have a relevant antimicrobial effect on cariogenic bacteria. Methods: A bibliographic search strategy was carried out in online databases using PRISMA 2020. The evaluation of the antibacterial efficacy of CCRAs was carried out through the analysis of the reduction in CFUs of cariogenic bacteria, and the presence of bacterial deposits, TVC, SVC and LVC by comparison with conventional drilling methods. Results: The results showed that the percentage of reduction in TVC, SVC and LVC for each agent is mostly high, but not significantly different from mechanical methods. The best results were found with CCRAs when compared to polymeric drills. The results also showed that there is a lack of methodological standardization. Conclusions: CCRAs have been shown to have a relevant antimicrobial effect on cariogenic bacteria; however, more studies need to be carried out using standardized methodologies. Full article
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