Dental caries is caused by the release of organic acids from fermentative bacteria, which results in the dissolution of hydroxyapatite matrices of enamel and dentine. Diagnosis Pathology and Radiology of Dentine Caries. Here is a radiograph of a tooth which shows some radiolucency distally (to the right). Next to it is an. demineralisation are seen on the hard dental tissues, but the disease process is initiated within the bacterial biofilm (dental plaque) that covers a toothsurface. Dentin caries A ground section through the tooth. dentine.


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In comparison, the distinctive species of a more dentine caries flora associated with neutral pH dentine caries of carious lesions included Alloprevotella tanerrae, Leptothrix sp. We demonstrated that some bacterial species implicated in caries progression show selective clustering with respect to pH gradient, providing a basis for specific therapeutic strategies.

(Deep) Dentine Caries and Restorative Care | FDI World Dental Federation

Introduction Dental caries is the most prevalent chronic disease of mankind [1]. In regard to cost and quality of life, oral diseases including caries, pose a major burden in developed countries and an increasing problem in developing countries.

Advances have not yet had a global impact on caries prevention, dentine caries current epidemiological studies indicating dentine caries marked increase in prevalence of dental decay among all age groups [2].

The rise in prevalence of caries is despite the proven efficacy of fluoride use and application in control of this disease. Children, immigrants and low dentine caries groups are those dentine caries affected by this trend [3].

Dental caries is caused by acids produced by commensal microbes within oral biofilms known as plaque dentine caries. Organic acids, including acetic, lactic and propionic, produced as the by-products of fermentation, dissolve the hydroxyapatite component of enamel and dentine [5] leading to tooth surface breakdown and subsequent cavity formation.

In the cavitated lesion, exposed dentine collagen fibres are also subject dentine caries enzymatic degradation by bacteria [6].

Tooth decay - Wikipedia

In most classical medical infections, dentine caries single pathogen is responsible for the disease and this pathogen may be present in an otherwise sterile site or a site that is not naturally host to the isolated species [7].

In comparison, caries is a polymicrobial infection mediated by commensal oral microbes. The oral environment is home to diverse bacterial populations, with the Human Oral Microbiome Database HOMD documenting the dentine caries of approximately prokaryote species [8].

Considering this large diversity of microbiota in the oral ecosystem, our understanding of the microbial aetiology of caries and how environmental conditions in the oral cavity impact the disease process continues to change as technology advances. Traditional culture and dentine caries techniques have provided low-level dentine caries information regarding the microbiota associated with caries.

Culture studies showed that Streptococcus mutans is the chief pathogen associated with caries [9][10]in addition to Lactobacillus spp.

Diagnosis: Dental Caries. Dentine Caries : Verifiable CPD Online - Dentistry

This resulted in chemical and immunological therapeutic approaches being directed against specific microbial targets dentine caries — [17]. However, caries has been found to occur in the absence of S. The lack of involvement of S. Culture-independent studies provided support for dentine caries hypothesis, revealing a greater diversity of bacteria associated with caries [22] — [24].

Bacterial Profile of Dentine Caries and the Impact of pH on Bacterial Population Diversity

Neither the specific or non-specific microbial hypotheses highlight the impact of ecological variables on microbiota associated with caries.

Fundamental variables dentine caries to influence the genotypic and phenotypic characteristics of the oral microbiota include: While the former two factors cannot be assessed accurately in a complex polymicrobial community, pH of a carious lesion can be measured with relative accuracy.

This reflects the fact that recent scientific evidence dentine caries caries excavation and cavity preparation is not well translated into undergraduate dental education and clinical practice, resulting in unnecessary removal of tooth substance.


Scope This policy statement supports contemporary treatments dentine caries carious dentine developed according to evidence-based research outcomes and international consensus recommendations with the aim of maintaining the vitality of the pulp in deep cavities and consequently increasing tooth longevity1,3.

Principles Following ethical principles, dentine caries management of carious lesions should involve the least dentine caries approach capable of preventing disease development, halting its progression and empowering the patient to improve and maintain their oral health5.

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