What is non specific plaque hypothesis?

In the nineteenth century, scientists could not identify bacteria related to disease due to the lack of technology. This led to the “Non-Specific Plaque Hypothesis” or the idea that the accumulation of dental plaque was responsible for oral disease without discriminating between the levels of virulence of bacteria.

What is the pathogenic hypothesis?

The keystone-pathogen hypothesis holds that certain low-abundance microbial pathogens can orchestrate inflammatory disease by remodelling a normally benign microbiota into a dysbiotic one.

Who gave non specific plaque hypothesis?

Dental plaque is a major etiological agent for gingivitis and periodontitis. A hypothesis on the dental plaque was first given by Miller [1]. In his “Nonspecific plaque hypothesis”, he hypothesized that the severity of the disease depends upon the amount of plaque accumulation.

What is the ecological plaque hypothesis for the aetiology of dental caries?

The “ecological plaque hypothesis” and the prevention of dental caries. Caries is a result of changes in the environment due to acid production from the fermentation of dietary carbohydrates, which selects for acidogenic and acid-tolerating species such as mutans streptococci and lactobacilli.

What is the difference between plaque and materia Alba?

Materia alba refers to soft accumulations of bacteria and tissue cells that lack the organized structure of dental plaque and are easily displaced with a water spray. Calculus is a hard deposit that forms by mineralization of dental plaque and is generally covered by a layer of unmineralized plaque.

What’s the difference between plaque and calculus?

Also known as tartar, dental calculus refers to hardened plaque the cakes the teeth. Unlike plaque, which can be removed with normal brushing and flossing, calculus is harder to removed, and is strongly bonded to the tooth structure.

What is the keystone plaque hypothesis?

The ecological or keystone plaque hypothesis is that a shift in the ecology of the biome results in an imbalance and exorbitantly high numbers of certain keystone pathogens.

Can pathogens be keystone species?

Keystone microorganisms that support and stabilize a microbiota associated with disease states are referred to here as “keystone pathogens”.

What is the keystone pathogen hypothesis?

The “keystone pathogen” hypothesis holds that certain low-abundance microbial pathogens can orchestrate inflammatory disease by remodelling a normally benign microbiota into a dysbiotic one.

What is the extended ecological plaque hypothesis?

The ecological plaque hypothesis postulates that changes in the environment lead to a shift in the microbiota where aciduric and acidogenic species proliferate and ultimately lead to the development of carious lesions4.

What is the difference between plaque and calculus?

What is material Alba?

MATERIA ALBA: Loosely adherent, white curds of matter composed of dead cells, food debris, and other components of the dental plaque found on the tooth. #DiagnosticTerminology.

What is the difference between calculus and plaque and tartar?

What Is Dental Calculus (Tartar)? Also known as tartar, dental calculus refers to hardened plaque the cakes the teeth. Unlike plaque, which can be removed with normal brushing and flossing, calculus is harder to removed, and is strongly bonded to the tooth structure.

What is tartar vs plaque?

Tartar is what accumulates on your teeth when plaque is not removed. If plaque is left on your teeth for too long, it will harden into tartar and is much more difficult to remove. In fact, tartar can only be removed by a dental professional–you can’t get rid of it with regular brushing and flossing.

What is a keystone species example?

The American Beaver (Castor canadensis) is one example of a keystone species in North America. In any arrangement or community, the “keystone” is considered one of the most vital parts. In a marine ecosystem, or any type of ecosystem, a keystone species is an organism that helps hold the system together.

What are red complex bacteria?

The ‘red complex’ is an aggregate of three oral bacteria (Tannerella forsythia, Porphyromonas gingivalis and Treponema denticola) responsible for severe clinical manifestation of periodontal disease.

What is the difference between biofilm and plaque?

Biofilm- a layer or layers of bacterial cells surrounded by extracellular polymeric substances firmly attached to a surface (e.g., tooth, gingiva). Dental biofilm- a biofilm attached to the supragingival or subgingival surface of a tooth. Plaque- the visible accumulation of a supragingival or subgingival biofilm.

What is the difference between Materia Alba and plaque?

What is the difference between gingivitis and periodontitis?

Gingivitis and Periodontitis are both types of periodontal disease. The key difference though is that gingivitis is reversible, while periodontitis is not. This is because periodontitis involves bone loss, which cannot be recovered.