Search results
Results From The WOW.Com Content Network
Animals with highly abrasive diets, such as ruminants and equids, rarely form thick deposits and instead tend to form thin calculus deposits that often have a metallic or opalescent sheen. [31] In animals, calculus should not be confused with crown cementum , [ 32 ] a layer of calcified dental tissue that encases the tooth root underneath the ...
Demineralization is the removal of minerals (mainly calcium) from any of the hard tissues: enamel, dentine, and cementum. [4] It begins at the surface, and may progress into either cavitation (tooth decay) or erosion (tooth wear).
Submandibular stones are further classified as anterior or posterior in relation to an imaginary transverse line drawn between the mandibular first molar teeth. Stones may be radiopaque , i.e. they will show up on conventional radiographs , or radiolucent , where they not be visible on radiographs (although some of their effects on the gland ...
Degrading concrete has been the focus of many studies and the most obvious sign is calcium-rich leachate seeping from a concrete structure. [5] [6] [7]Calthemite stalactites can form on concrete structures and "artificial caves" lined with concrete (e.g. mines and tunnels) significantly faster than those in limestone, marble or dolomite caves.
Scaling and root planing, also known as conventional periodontal therapy, non-surgical periodontal therapy or deep cleaning, is a procedure involving removal of dental plaque and calculus (scaling or debridement) and then smoothing, or planing, of the (exposed) surfaces of the roots, removing cementum or dentine that is impregnated with calculus, toxins, or microorganisms, [1] the agents that ...
Calcium deposits known as limbus sign may be visible in the eyes. [7] Symptoms are more common at high calcium blood values (12.0 mg/dL or 3 mmol/L). [6] Severe hypercalcaemia (above 15–16 mg/dL or 3.75–4 mmol/L) is considered a medical emergency: at these levels, coma and cardiac arrest can result.
Because professional teeth whitening gels are stronger, you may be able to get away with a visit to the dentist once a year, while over the counter products may require consecutive daily use per kit.
Teeth were first seen in chondrichthyans and were made from all three components of the dermal skeleton, namely dentin, basal bone and enameloid. The mineralization mechanism of mammalian tissue was later elaborated in actinopterygians and sarcopterygians during bony fish evolution.