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Periodontology 2000 Jun 2021The extracellular matrix is a critical component of microbial biofilms, such as dental plaque, maintaining the spatial arrangement of cells and coordinating cellular... (Review)
Review
The extracellular matrix is a critical component of microbial biofilms, such as dental plaque, maintaining the spatial arrangement of cells and coordinating cellular functions throughout the structure. The extracellular polymeric substances that comprise the matrix include carbohydrates, nucleic acids, proteins, and lipids, which are frequently organized into macromolecular complexes and/or are associated with the surfaces of microbial cells within the biofilm. Cariogenic dental plaque is rich in glucan and fructan polysaccharides derived from extracellular microbial metabolism of dietary sucrose. By contrast, the matrix of subgingival dental plaque is a complex mixture of macromolecules that is still not well understood. Components of the matrix escape from microbial cells during lysis by active secretion or through the shedding of vesicles and serve to anchor microbial cells to the tooth surface. By maintaining the biofilm in close association with host tissues, the matrix facilitates interactions between microorganisms and the host. The outcome of these interactions may be the maintenance of health or the development of dental disease, such as caries or periodontitis. The matrix affords microbial cells protection against chemical and physical insults and hinders the eradication of pathogenic dental plaque. Therefore, strategies to control the matrix are critical to maintain oral health. This review discusses recent advances in our understanding of the composition, origins, and function of the dental plaque matrix, with a focus on subgingival dental plaque. New strategies to control subgingival dental plaque based on targeting the biofilm matrix are also considered.
Topics: Biofilms; Dental Caries; Dental Plaque; Extracellular Polymeric Substance Matrix; Humans; Periodontitis
PubMed: 33690911
DOI: 10.1111/prd.12361 -
International Journal of Oral Science Mar 2018Malocclusion is a worldwide dental problem that influences the affected individuals to varying degrees. Many factors contribute to the anomaly in dentition, including... (Review)
Review
Malocclusion is a worldwide dental problem that influences the affected individuals to varying degrees. Many factors contribute to the anomaly in dentition, including hereditary and environmental aspects. Dental caries, pulpal and periapical lesions, dental trauma, abnormality of development, and oral habits are most common dental diseases in children that strongly relate to malocclusion. Management of oral health in the early childhood stage is carried out in clinic work of pediatric dentistry to minimize the unwanted effect of these diseases on dentition. This article highlights these diseases and their impacts on malocclusion in sequence. Prevention, treatment, and management of these conditions are also illustrated in order to achieve successful oral health for children and adolescents, even for their adult stage.
Topics: Child; Humans; Malocclusion; Prevalence; Stomatognathic Diseases
PubMed: 29540669
DOI: 10.1038/s41368-018-0012-3 -
Nature Communications Jun 2019Dental caries and periodontitis account for a vast burden of morbidity and healthcare spending, yet their genetic basis remains largely uncharacterized. Here, we... (Meta-Analysis)
Meta-Analysis
Dental caries and periodontitis account for a vast burden of morbidity and healthcare spending, yet their genetic basis remains largely uncharacterized. Here, we identify self-reported dental disease proxies which have similar underlying genetic contributions to clinical disease measures and then combine these in a genome-wide association study meta-analysis, identifying 47 novel and conditionally-independent risk loci for dental caries. We show that the heritability of dental caries is enriched for conserved genomic regions and partially overlapping with a range of complex traits including smoking, education, personality traits and metabolic measures. Using cardio-metabolic traits as an example in Mendelian randomization analysis, we estimate causal relationships and provide evidence suggesting that the processes contributing to dental caries may have undesirable downstream effects on health.
Topics: Dental Caries; Genetic Predisposition to Disease; Genome-Wide Association Study; Genomics; Heredity; Humans; Mendelian Randomization Analysis; Periodontitis; Polymorphism, Single Nucleotide; Quantitative Trait Loci; Self Report
PubMed: 31235808
DOI: 10.1038/s41467-019-10630-1 -
Journal of Clinical Periodontology Mar 2017The oral microbiome is diverse and exists as multispecies microbial communities on oral surfaces in structurally and functionally organized biofilms. (Review)
Review
BACKGROUND
The oral microbiome is diverse and exists as multispecies microbial communities on oral surfaces in structurally and functionally organized biofilms.
AIM
To describe the network of microbial interactions (both synergistic and antagonistic) occurring within these biofilms and assess their role in oral health and dental disease.
METHODS
PubMed database was searched for studies on microbial ecological interactions in dental biofilms. The search results did not lend themselves to systematic review and have been summarized in a narrative review instead.
RESULTS
Five hundred and forty-seven original research articles and 212 reviews were identified. The majority (86%) of research articles addressed bacterial-bacterial interactions, while inter-kingdom microbial interactions were the least studied. The interactions included physical and nutritional synergistic associations, antagonism, cell-to-cell communication and gene transfer.
CONCLUSIONS
Oral microbial communities display emergent properties that cannot be inferred from studies of single species. Individual organisms grow in environments they would not tolerate in pure culture. The networks of multiple synergistic and antagonistic interactions generate microbial inter-dependencies and give biofilms a resilience to minor environmental perturbations, and this contributes to oral health. If key environmental pressures exceed thresholds associated with health, then the competitiveness among oral microorganisms is altered and dysbiosis can occur, increasing the risk of dental disease.
Topics: Biofilms; Humans; Microbial Interactions; Microbiota; Mouth Diseases; Oral Health; Tooth
PubMed: 28266111
DOI: 10.1111/jcpe.12679 -
Bundesgesundheitsblatt,... Aug 2021Periodontitis is a chronic inflammatory noncommunicable disease that affects all parts of the periodontium and causes irreversible damage. It is estimated that around... (Review)
Review
Periodontitis is a chronic inflammatory noncommunicable disease that affects all parts of the periodontium and causes irreversible damage. It is estimated that around 10 million people in Germany suffer from severe forms of periodontitis. The disease usually shows few or only mild symptoms over many years, which are often not perceived or correctly classified by the patient. A lack of awareness could lead to dental treatment being sought in an advanced stage of the disease when extensive therapeutic measures have become necessary and the prognosis for tooth retention has worsened. The periodontal screening index (PSI) is a simple and rapid tool that is used to assess the level of further examination needed. The index is now carried out on many patients. However, the number of treatments remain low and behind what is necessary to reduce the existing burden of periodontitis. Every dental practice must be able to implement periodontal therapy in their clinical setting. Periodontal specialists can support general dentists significantly, especially in the treatment of severe forms of periodontitis. This requires an upgrading of the subject in university education, but also an increasing postgraduate differentiation of specialized dentists for periodontology. The new treatment guidelines for PAR (periodontal) therapy allow periodontal treatment on the basis of internationally recognized scientific standards and thus improve the framework conditions for therapy in the dental practice.
Topics: Chronic Disease; Germany; Humans; Periodontics; Periodontitis
PubMed: 34236451
DOI: 10.1007/s00103-021-03373-2 -
American Family Physician Dec 2018Oral health directly affects overall health and quality of life. More Americans lack dental insurance than medical insurance. Patients with poor oral health are more... (Review)
Review
Oral health directly affects overall health and quality of life. More Americans lack dental insurance than medical insurance. Patients with poor oral health are more likely to have respiratory and cardiovascular diseases, adverse pregnancy outcomes, and diabetes mellitus. Early childhood caries is the most common chronic condition in American children. Certain illicit and prescription drugs increase the risk of enamel erosion and caries formation in adults. Incision and drainage is the treatment of choice for dental abscess. Risk factors for periodontal disease include smoking, diabetes, human immunodeficiency virus infection, use of certain medications, and genetic susceptibility. Patients with gingivitis typically present with swollen, erythematous gum tissue that bleeds easily with brushing or flossing. One in three children will have an injury to the primary teeth, and one in five 12-year-old children will have an injury to the permanent teeth. All dental fractures should be evaluated with imaging and managed in conjunction with a dental professional. Immediate reimplantation is the preferred treatment for avulsed permanent teeth. Primary care clinicians are well positioned to reduce rates of oral disease. Family physicians can incorporate oral health into routine practice through counseling about diet, oral hygiene, smoking cessation, and fluoride supplementation; application of fluoride varnish; and screening for dental disease.
Topics: Humans; Oral Health; Primary Health Care; Risk Factors; Tooth Diseases
PubMed: 30485039
DOI: No ID Found -
Nature Protocols Oct 2018Periodontal disease (PD) is a common dental disease associated with the interaction between dysbiotic oral microbiota and host immunity. It is a prevalent disease,...
Periodontal disease (PD) is a common dental disease associated with the interaction between dysbiotic oral microbiota and host immunity. It is a prevalent disease, resulting in loss of gingival tissue, periodontal ligament, cementum and alveolar bone. PD is a major form of tooth loss in the adult population. Experimental animal models have enabled the study of PD pathogenesis and are used to test new therapeutic approaches for treating the disease. The ligature-induced periodontitis model has several advantages as compared with other models, including rapid disease induction, predictable bone loss and the capacity to study periodontal tissue and alveolar bone regeneration because the model is established within the periodontal apparatus. Although mice are the most convenient and versatile animal models used in research, ligature-induced periodontitis has been more frequently used in large animals. This is mostly due to the technical challenges involved in consistently placing ligatures around murine teeth. To reduce the technical challenge associated with the traditional ligature model, we previously developed a simplified method to easily install a bacterially retentive ligature between two molars for inducing periodontitis. In this protocol, we provide detailed instructions for placement of the ligature and demonstrate how the model can be used to evaluate gingival tissue inflammation and alveolar bone loss over a period of 18 d after ligature placement. This model can also be used on germ-free mice to investigate the role of human oral bacteria in periodontitis in vivo. In conclusion, this protocol enables the mechanistic study of the pathogenesis of periodontitis in vivo.
Topics: Animals; Bacteriological Techniques; Disease Models, Animal; Female; Humans; Mice; Mice, Inbred C57BL; Periodontitis
PubMed: 30218100
DOI: 10.1038/s41596-018-0035-4 -
BMJ Clinical Evidence Aug 2014The incidence of impacted wisdom teeth (third molars) is high, with some 72% of Swedish people aged 20 to 30 years having at least one impacted wisdom tooth. Impacted... (Review)
Review
INTRODUCTION
The incidence of impacted wisdom teeth (third molars) is high, with some 72% of Swedish people aged 20 to 30 years having at least one impacted wisdom tooth. Impacted wisdom teeth occur because of a lack of space, obstruction, or abnormal position. They can cause inflammatory dental disease manifested by pain and swelling of infected teeth and may destroy adjacent teeth and bone.
METHODS AND OUTCOMES
We conducted a systematic review and aimed to answer the following clinical questions: Should asymptomatic, disease-free impacted wisdom teeth be removed prophylactically? What are the effects of different operative (surgical) techniques for removing impacted wisdom teeth? We searched: Medline, Embase, The Cochrane Library, and other important databases up to October 2013 (Clinical Evidence reviews are updated periodically; please check our website for the most up-to-date version of this review). We included harms alerts from relevant organisations such as the US Food and Drug Administration (FDA) and the UK Medicines and Healthcare products Regulatory Agency (MHRA). We performed a GRADE evaluation of the quality of evidence for interventions.
RESULTS
We found 11 studies that met our inclusion criteria.
CONCLUSIONS
In this systematic review, we present information relating to the effectiveness and safety of the following interventions: prophylactic extraction, active surveillance, and different operative (surgical) techniques for extracting impacted wisdom teeth.
Topics: Humans; Molar, Third; Prophylactic Surgical Procedures; Tooth Extraction; Tooth, Impacted; United States
PubMed: 25170946
DOI: No ID Found -
Indian Journal of Dental Research :... 2010The interrelationship between periodontal and endodontic disease has aroused confusion, queries and controversy. Differentiating between periodontal and endodontic... (Review)
Review
The interrelationship between periodontal and endodontic disease has aroused confusion, queries and controversy. Differentiating between periodontal and endodontic problems can be difficult. A symptomatic tooth may have pain of periodontal and/or pulpal origin. The nature of that pain is often the first clue in determining the etiology of such a problem. Radiographic and clinical evaluation can help clarify the nature of the problem. In some cases, the influence of pulpal pathology may create periodontal involvement. In others, periodontal pathology may create pulpal pathology. This review article discusses the various clinical aspects to be considered for accurately diagnosing and treating endo-perio lesions.
Topics: Clinical Protocols; Dental Fistula; Dental Pulp Diseases; Diagnosis, Differential; Humans; Periodontal Diseases; Periodontal Ligament; Tooth Apex; Toothache
PubMed: 21187629
DOI: 10.4103/0970-9290.74238 -
Journal of Oral Rehabilitation Aug 2019Tooth wear is a common finding in adult patients with dental sleep disorders. The aim of this paper was to review the literature on the possible associations between... (Review)
Review
OBJECTIVES
Tooth wear is a common finding in adult patients with dental sleep disorders. The aim of this paper was to review the literature on the possible associations between tooth wear and the following dental sleep disorders: sleep-related oro-facial pain, oral moistening disorders, gastroesophageal reflux disease (GERD), obstructive sleep apnoea syndrome (OSAS) and sleep bruxism.
METHODS
A PubMed search was performed on 1 June 2018 using MeSH terms in the following query: Tooth Wear AND (Facial Pain OR Temporomandibular Joint Disorders OR Xerostomia OR Sialorrhea OR Gastroesophageal Reflux OR Sleep Apnea Syndrome OR Sleep Bruxism).
RESULTS
The query yielded 706 reports on tooth wear and the mentioned dental sleep disorders. Several associations between tooth wear and the dental sleep disorders were suggested in the literature. It could be concluded that: (a) tooth wear is associated with dental pain and/or hypersensitivity; (b) oral dryness is associated with tooth wear, oro-facial pain and sleep bruxism; (c) GERD is associated with tooth wear, oro-facial pain, oral dryness, OSAS and sleep bruxism; (d) OSAS is associated with oral dryness, GERD and sleep bruxism; and (e) sleep bruxism is associated with tooth wear.
CONCLUSIONS
Tooth wear is associated with the dental sleep disorders oro-facial pain, oral dryness, GERD and sleep bruxism. The dental sleep disorders are interlinked with each other, which leads to indirect associations as well, and makes the consequences of each single condition difficult to disentangle. Knowledge of these associations is clinically relevant, but more research is needed to confirm their validity.
Topics: Adult; Bruxism; Humans; Sleep; Sleep Bruxism; Sleep Wake Disorders; Tooth Attrition; Tooth Wear
PubMed: 31038764
DOI: 10.1111/joor.12807