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gingival recession
Gingival recession, also known as receding gums, is the exposure in the roots of the teeth caused by a loss of gum tissue and/or retraction of the gingival margin from the crown of the teeth.〔(Gingival Recession - Causes and treatment ) JADA, Vol 138. http://jada.ada.org. Oct 2007. American Dental Association〕 Gum recession is a common problem in adults over the age of 40, but it may also occur starting from the age of a teenager, or around the age of 10. It may exist with or without concomitant decrease in crown-to-root ratio (recession of alveolar bone).
==Classification==
Various classifications have been proposed to classify gingival recession, Miller’s classification system〔Miller PD Jr. A classification of marginal tissue recession. Int J Periodontics Restorative Dent 1985;5:8-13.〕 being the one that is most widely followed. Many cases which are encountered in daily clinical practice cannot be classified according to the criteria of the present classification systems. Kumar & Masamatti's classification system gives a comprehensive depiction of recession defect that can be used to include cases that cannot be classified according to present classifications. A separate classification system for palatal recessions (PR) has been given. A new comprehensive classification system classifies recession on the basis of the position of interdental papilla and buccal/lingual/palatal recessions. Kumar & Masamatti's classification system tries to overcome the limitations of Miller's classification.〔Kumar A, Masamatti SS. A new classification system for gingival and palatal recession. J Indian Soc Periodontol 2013;17:175-81.〕
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