"දත් දිරායාම" හි සංශෝධන අතර වෙනස්කම්

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Proximal caries are the most difficult type to detect.<ref name=summit31>Summit, James B., J. William Robbins, and Richard S. Schwartz. "Fundamentals of Operative Dentistry: A Contemporary Approach." 2nd edition. Carol Stream, Illinois, Quintessence Publishing Co, Inc, 2001, p. 31. ISBN 0-86715-382-2.</ref> Frequently, this type of caries cannot be detected visually or manually with a [[Explorer (dental)|dental explorer]]. Proximal caries form cervically (toward the roots of a tooth) just under the contact between two teeth. As a result, [[radiograph]]s are needed for early discovery of proximal caries.<ref>[http://www.newhealth.govt.nz/toolkits/oralhealth/radiography.htm Health Strategy Oral Health Toolkit], hosted by the New Zealand's Ministry of Health. Page accessed August 15, 2006.</ref> Under Black's classification system, proximal caries on posterior teeth (premolars and molars) are designated as Class II caries.<ref name="Qualtrough28">Qualtrough, A. J. E. , J D Satterthwaite, L A Morrow, Paul A. Brunton. "Principles of Operative Dentistry." Blackwell Publishing, 2005, p. 28. ISBN 1-4051-1821-0.</ref> Proximal caries on anterior teeth (incisors and canines) are indicated as Class III if the incisal edge (chewing surface) is not included and Class IV if the incisal edge is included.
 
Root caries, which are sometimes described as a category of smooth-surfaces caries, are the third most common type of caries and usually occur when the root surfaces have been exposed due to [[gingiva]]l recession. When the gingiva is healthy, root caries is unlikely to develop because the root surfaces are not as accessible to [[bacteriaබැක්ටීරියා|බැක්ටීරියානු]]l [[Dental plaque|plaque]]. The root surface is more vulnerable to the demineralization process than enamel because [[cementum]] begins to demineralize at 6.7 [[pH]], which is higher than enamel's critical pH.<ref name="banting19">Banting, D.W. "[http://www.nidcr.nih.gov/NR/rdonlyres/5A4386A8-E750-43E9-8450-651F4789D09A/0/David_Banting.pdf The Diagnosis of Root Caries]." Presentation to the National Institute of Health Consensus Development Conference on Diagnosis and Management of Dental Caries Throughout Life, in pdf format, hosted on the [[National Institute of Dental and Craniofacial Research]], p. 19. Page accessed August 15, 2006.</ref> Regardless, it is easier to arrest the progression of root caries than enamel caries because roots have a greater reuptake of fluoride than enamel. Root caries are most likely to be found on facial surfaces, then interproximal surfaces, then lingual surfaces. Mandibular molars are the most common location to find root caries, followed by mandibular premolars, maxillary anteriors, maxillary posteriors, and mandibular anteriors.
 
Lesions on other smooth surfaces of teeth are also possible. Since these occur in all smooth surface areas of enamel except for interproximal areas, these types of caries are easily detected and are associated with high levels of plaque and diets promoting caries formation.<ref name=summit31/> Under Black's classification system, caries near the gingiva on the facial or lingual surfaces is designated Class V.<ref name="Qualtrough28"/> Class VI is reserved for caries confined to [[Dental anatomy#Cusp|cusp]] tips on posterior teeth or incisal edges of anterior teeth.
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