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Tooth Anatomy

The tooth and periodontium should be clearly identifiable in any periapical radiograph.

Tooth Anatomy
The portion of the tooth from the CEJ to the incisal/occlusal surface that is covered by enamel. The entire area from the CEJ to the incisal/occlusal surface is more strictly called the anatomical crown. In a healthy mouth, however, the anatomical crown is not fully visible, being surrounded along the cervical area by gingiva. Tooth Anatomy
A hard, mineralized tissue forming the outer cover of the anatomical crown of a tooth and surrounding the dentin in the crown portion of a tooth. Tooth Anatomy
That portion of the tooth underlying the enamel and cementum and surrounding the pulp cavity. Dentin comprises the bulk of the tooth. Tooth Anatomy
A hard tissue forming the outer cover of the root of a tooth and surrounding the dentin along the root portion of the tooth. Tooth Anatomy
A complex of collagenous fiber bundles that surrounds the root(s) of a tooth and connects the cementum with the alveolar bone.
Tooth Anatomy
Tooth Anatomy
Diagram of the principal fiber of the periodontal ligament groups, with surrounding cancellous bone
An innervated connective tissue possessing the formative, nutritive, sensory, and defensive functions essential to the nourishment and vitality of a tooth.
Tooth Anatomy
That portion of a tooth covered by cementum and embedded in a bony socket called the Alveolar bone.
Tooth Anatomy
The bony lining of the socket that holds the root(s) of the tooth and is a portion of the maxillary and mandibular process. Tooth Anatomy

Tooth Anatomy
The area, 2.5 mm average, between the base of the gingival sulcus and the alveolar crest; consider the bone height approximately from cement-enamel junction to bone height. The primary significance of biologic width to the clinician is its importance relative to the position of restorative margins, and its impact on post-surgical tissue position. We know that if a restorative margin is placed too deep below tissue, so that it invades the biologic width, two possible outcomes may occur.
  1. bone loss
  2. gingival inflammation (with the inflammation being far more common).
Biologic Width1
Biologic Width1
Biologic Width1

A Comprehensive Guide To Biologic Width By Spear. F

Biologic Width1
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