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The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
WikiVisually
The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
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Gingival recession
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Gingival recession, also known as gum recession and receding gums, is the exposure in the roots of the teeth caused by a loss of gum tissue or retraction of the gingival margin from the crown of the t
Advanced gingival recession. Note particularly severe recession on leftmost incisor.
Advanced gingival recession. Note particularly severe recession on leftmost incisor.
Crown-to-root ratio
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Crown-to-root-ratio is the ratio of the length of the part of a tooth that appears above the alveolar bone versus what lies below it. It is an important consideration in the diagnosis, treatment plann
Gingival recession
…adults over the age of 40, but it may also occur starting in adolescence, or around the age of 10. It may exist with or without concomitant decrease in crown-to-root ratio (recession of alveolar bone). 85% of the world population has gingival recession on at least one tooth with denuded root surface ≥1.0 mm. Various…
This X-ray film reveals a poor crown-to-root ratio for tooth #21 (right), the lower left first premolar. The tooth exhibits 50% bone loss, adding roug
This X-ray film reveals a poor crown-to-root ratio for tooth #21 (right), the lower left first premolar. The tooth exhibits 50% bone loss, adding roughly 5-7 mm to the clinical crown of what is actually anatomical root. The fulcrum, existing somewhere immediately apical to the height of the bone, does not allow for any adjacent bone to avoid compression or tension, resulting in virtually complete widening of the PDL and a grim prognosis, due to
This X-ray film displays horizontal bone loss of the mandible, in the lower right quadrant. Although the two premolars and the molar exhibit moderate
This X-ray film displays horizontal bone loss of the mandible, in the lower right quadrant. Although the two premolars and the molar exhibit moderate to severe bone loss, there was no tooth mobility at the time this film was taken.
Models of human teeth as they exist within the alveolar bone. The roots, as they can be seen through the transparent "bone", exist naturally in greate
Models of human teeth as they exist within the alveolar bone. The roots, as they can be seen through the transparent "bone", exist naturally in greater inciso-apical lengths than the crowns.