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OD 711


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Gingival margin
The edge of the gingiva along the tooth surface.
Free gingiva
The portion of the gingiva that surrounds the tooth and si not directly attached to the tooth surface.
Attached gingiva
portion of gingiva firmly bound to the tooth and alveolar process
Alveolar Mucosa
The mucosa that covers the bone apical to the attached gingiva.
Mucogingival line
the junction of the attached gingiva and the alveolar mucosa
Gingival sulcus
The groove between the surface of the tooth and the epithelium lining the free gingiva
Gingival pocket
a gingival sulcus deepened by pathological conditions, caused by gingival enlargement without destruction of the periodontal tissue
Periodontal pocket
a gingival sulcus deepened into the periodontal ligament apically to the original level of the resorbed alveolar crest.
CAL (Clinical attachment loss)
probing depth + free gingival margin = CAL
Furcation Grades 1, 2 & 3
loss of attachment allow a probe to slip between the roots. Grade 1: probe enters between roots up to 3mm. Grade 2: moderate probe enters more than 3mm but not to the lingual side. Grade 3: probe enters lingual side between roots
Tooth mobility 1, 2 & 3
1: combined factial/lingual movement totals 1mm
2: combined totals 2mm
3: 3mm or more of the tooth is depressible into socket

Embrasure Space
Triangular space defined by contact, mesial, distal & bone of two adjacent teeth.
Loss of tooth structure due to mechanical wear
Loss of tooth structure due to mechanical wear occurs on cervical area of tooth
Loss of tooth structure due to chemical exposure.
Class I Caries
Carries affecting pits and fissures, on occlusal, buccal, and lingual surfaces of posterior teeth, and lingual surface of anterior teeth.
Class II Carries
Affecting proximal surfaces of molars and premolars.
Class III Caries
Caries affecting proximal surfaces of central incisors, lateral incisors, and canines.
Class IV Caries
Affecting proximal including incisal edges of anterior teeth
Class V Caries
Affecting gingival 1/3 of facial or lingual surfaces of anterior or posterior teeth.

Class VI Caries
Caries affecting cusp tips of molars, premolars, and canines.

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