What is in situ caries model?
In situ caries research serves as a bridge between clinical research and laboratory studies. In this kind of research, volunteers wear a removable intraoral splint or prosthesis containing research samples. Many different in situ models exist to investigate secondary caries.
What is Acidogenic theory of dental caries?
A theory describing the cause of dental caries, first postulated by Willoughby D. Miller in 1890, which stated that non-specific bacteria in the plaque fermented refined carbohydrates to produce acid that demineralized tooth enamel. From: acidogenic theory in A Dictionary of Dentistry »
What are the steps in caries management?
Ten step summary of the Caries Management System
| Ten steps of the Caries Management System | |
|---|---|
| 1 | Diet assessment |
| 2 | Plaque assessment |
| 3 | Bitewing radiographic survey |
| 4 | Diagnosis and caries risk assessment |
What is backward caries?
A) forward caries B) backward caries. Numbers of tooth surface involved. – Simple, a caries involving only one tooth surface. – Compound, a caries involving two surfaces of tooth. – Complex, a caries that involves more than two surfaces of a tooth.
What is the secondary caries?
Secondary caries is a disease that occurs on the tooth after the filling has been used for a period of time. Secondary caries is also the main reason for the replacement of dental restorations. Regardless of the material used for fillings, secondary caries cannot be completely avoided.
What is CRA in dentistry?
Key Points. Dental caries is defined as a “biofilm-mediated, sugar-driven, multifactorial, dynamic disease that results in the phasic demineralization and remineralization of dental hard tissues.”
What is a Stephan curve?
The Stephan Curve is a graph that shows what happens after the consumption of sugar in relation to dental caries. After sugar intake, demineralisation of the tooth surfaces takes place due to the drop in pH as the bacteria in the mouth convert the sugar to acid.
What is the meaning of Acidogenic?
producing acid
producing acid, as bacteria, or causing acidity, as of the urine.
How do you assess caries?
A comprehensive caries assessment should consider factors such as past and current caries experience, diet, fluoride exposure, presence of cariogenic bacteria, salivary status, general medical history, behavioral and physical factors, and medical and demographic characteristics that may affect caries development.
What is backward and forward caries?
2.BACKWARD CARIES. Decay starts in enamel then it involves the dentin. Wherever the caries cone in enamel is larger or at least the size as that of dentin, it is called forward decay.
How do you classify caries?
Caries classification according to severity The appearance of interproximal caries can be classified as incipient, moderate, advanced, or severe, depending on the amount of enamel and dentin involved in the caries process.
What is the difference between secondary and recurrent caries?
People sometimes confuse recurrent caries with secondary caries. Although recurrent caries are located underneath dental restorations, secondary caries are new caries that occur at the margins of a restoration.
What is caries assessment tool?
Caries-risk assessment is the. determination of the likelihood of the increased incidence of. caries (i.e., the number of new cavitated or incipient lesions) during a certain time period9 or the likelihood that there will. be a change in the size or activity of lesions already present.
Which electrode is used in Stephan curve?
Abstract. A system employing an Ingold glass electrode was shown to give reliable measurements of pH drops in dental plaque in situ (Stephan curve readings). The system was used to demonstrate that mouthrinses of 0.2 per cent aqueous solutions of stannous fluoride reduced the pH drops markedly for at least seven hours.
What is the critical pH of dentine?
Root dentin is vulnerable to acidic dissolution than enamel because of its higher critical pH for demineralization (6.2 – 6.4) than that of enamel (5.5).