Dental Anatomy, Physiology and Occlusion

Orofacial Complex: Form and Function (Dental Anatomy, Physiology and Occlusion) Part 4

Facial and Lingual Contours at the Cervical Thirds (Cervical Ridges) and Lingual Contours at the Middle Thirds of Crowns The teeth are unique in that their static outside form is physiological. Even the maxillary teeth, which are firmly set in their alveoli, when moving through food material activated by mandibular movement, change their functional crown […]

Orofacial Complex: Form and Function (Dental Anatomy, Physiology and Occlusion) Part 5

Summary of Physiological Contours of Tooth Crowns, Facially and Lingually All tooth crowns exhibit some curvature above the cervical line. Again, this slight bulge at the cervical third is sometimes called the cervical ridge. Although the extent of curvature will vary in different individuals, apparently it is not normal for the curvatures on permanent teeth […]

The Permanent Maxillary Incisors (Dental Anatomy, Physiology and Occlusion) Part 1

The maxillary incisors are four in number. The maxillary central incisors are centered in the maxilla, one on either side of the median line, with the mesial surface of each in contact with the mesial surface of the other. The maxillary and mandibular central incisors are the only neighboring teeth in the dental arches with […]

The Permanent Maxillary Incisors (Dental Anatomy, Physiology and Occlusion) Part 2

Detailed Description of the Maxillary Central Incisor From All Aspects Labial Aspect The crown of the average central incisor will be 10 to 11 mm long from the highest point on the cervical line to the lowest point on the incisal edge (see Figures 6-2 and 6-9). The mesiodistal measurement will be 8 to 9 […]

The Permanent Maxillary Incisors (Dental Anatomy, Physiology and Occlusion) Part 3

Detailed Description of the Maxillary Lateral Incisor From All Aspects Labial Aspect Although the labial aspect of the maxillary lateral incisor may appear to favor that of the central incisor, usually it has more curvature, with a rounded incisal ridge and rounded incisal angles mesially and distally (see Figures 6-13 and 6-19). Although the crown […]

The Permanent Mandibular Incisors (Dental Anatomy, Physiology and Occlusion) Part 1

The mandibular incisors are four in number. The mandibular central incisors are centered in the mandible, one on either side of the median line, with the mesial surface of each one in contact with the mesial surface of the other. The right and left mandibular lateral or second incisors are distal to the central incisors. […]

The Permanent Mandibular Incisors (Dental Anatomy, Physiology and Occlusion) Part 2

Mesial Aspect The curvature labially and lingually above the cervical line is less than that found on maxillary incisors (see Figures 7-4, 7-7, 7-8, and 7-10). The outline of the labial face of the crown is straight above the cervical curvature, sloping rapidly from the crest of curvature to the incisal ridge. The lingual outline […]

The Permanent Canines: Maxillary and Mandibular (Dental Anatomy, Physiology and Occlusion) Part 1

The maxillary and mandibular canines bear a close resemblance to each other, and their functions are closely related. The four canines are placed at the "corners" of the mouth; each one is the third tooth from the median line, right and left, in the maxilla and mandible. They are commonly referred to as the cornerstone […]

The Permanent Canines: Maxillary and Mandibular (Dental Anatomy, Physiology and Occlusion) Part 2

Detailed Description of the Maxillary Canine From All Aspects Labial Aspect From the labial aspect, the crown and root are narrower mesiodistally than those of the maxillary central incisor. The difference is about 1 mm in most mouths. The cervical line labially is convex, with the convexity toward the root portion (see Figures 8-2, 8-7, […]

The Permanent Canines: Maxillary and Mandibular (Dental Anatomy, Physiology and Occlusion) Part 3

Detailed Description of the Mandibular Canine From All Aspects Labial Aspect From the labial aspect, the mesiodistal dimensions of the mandibular canine are less than those of the maxillary canine. The difference is usually about 1 mm. The mandibular canine is broader mesiodistally than either of the mandibular incisors, for example, about 1 mm wider […]

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