|Histology:||Study of tissues|
|Periodontium:||Collective term for the supporting structures of the teeth|
|Gingiva:||Clinically visible tissue surrounding and supporting the teeth|
|Gingival Margin:||The uppermost edge of the free gingival margin usually located at or around the cemento-enamel junction (CEJ)|
|CEJ:||Junction between the anatomical crown and root|
|Dentition:||All teeth present in the human mouth|
|Gingival Health:||Absence of disease regarding the gingiva|
|Interdental Papilla:||Gingiva extending between two neighboring teeth|
|Interdental Spaces:||Space beneath tooth contacts|
|Apical:||Towards the root tip|
|Coronal:||Towards the chewing surface|
|Plaque:||Dense, soft mass of microbial colonies attached to teeth and tissues of the oral cavity|
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