Study Set Content:
Anatomic Crown
The part of the tooth that is covered by enamel and it always has the same size. It may extend below the gingiva.
Alveolus
The bony sockets where each tooth is held by the periodontal ligament aka PDL.
Clinical Crown
The visible part of the tooth that extends above the gingiva and it varies in size.
Apex
The terminal tip of a tooth root subgingivally.
Enamel
Covers the anatomical crown of the tooth, radiopaque, and it's the hardest substance in the human body.
Cementum
The tissue that covers the anatomic roots, and there are two types: cellular and acellular cementum.
The primary spacing for the anterior teeth is most frequently caused by
the growth of dental arches.
Peridontal Ligament (PDL)
Dense collagen fibers that connect the tooth to the bone.
Attachment Apparatus
Consists of:
- Cementum.
- Periodontal Ligament.
- Alveolar bone.
Periodontium
consists of:
- Gingiva.
- Cementum.
- Periodontal Ligament.
- Alveolar Bone.
Oral mucosa types are:
- Lining mucosa.
- Specialized mucosa.
- Masticatory mucosa.
Biologic Width
The distance between the connective tissue attachment and the junctional epithelium.
Most frequently impacted teeth
- Mandibular third molars.
- Maxillary third molars.
- Maxillary canines.
What tooth is usually peg-shaped?
Maxillary lateral incisor.
It's a kind of microdontia.
Microdontia
Tooth or a group of teeth are smaller than their normal size.
The most common teeth affected are the upper lateral incisors and third molars.
Macrodontia
Tooth or a group of teeth are bigger than their normal size.
Most Commonly Missing Teeth (Disregarding 3rd molars)
1- Mandibular second premolars.
2- Maxillary lateral incisors.
Hypodontia
Developmental missing of one or more teeth.
Oligodontia
Developmental missing of 6 or more teeth.
Anodontia
Developmental missing of all teeth.
