Pulp And Root Anatomy Flashcards
The anatomy of the crown of a tooth is significant to the _____ from a _____ standpoint
Function; occlusal
The root morphology and surrounding structures determine ____ for the teeth
Support
There is an important relationship of _____ to _____
Periodontal disease to restorative dentistry
The important relationship of periodontal disease to restorative dentistry impacts the:
Placement of restorations, crowns, and periodontal debridement
The tissues that surround the teeth
Periodontium
The periodontium includes:
- Gingiva
- Alveolar bone
- Periodontal ligament
- Cementum
Covers the bone and surrounds the cervical portions of the teeth:
Gingiva
What is the visible part of the periodontium evaluated through oral examination:
Gingiva
The most incisal unattached portion, surrounds the tooth to form a collar of tissue with a space or sulcus:
Free gingiva
Separates the attached gingiva from the free gingiva:
Free gingival groove
The zone of gray to light or coral pink keratinized masticatory mucosa that is firmly bound to underlying bone:
Attached gingiva
The attached gingiva extends between the:
Free gingiva and alveolar mucosa
Describe the tissue make up of attached gingiva:
Gray to light pink keratinized masticatory mucosa
The junction between the attached gingiva and the looser, alveolar mucosa
Mucogingival junction
Moveable, dark pink to red tissue apical to the Mucogingival junction:
Alveolar mucosa
Not seen visually, but can be evaluated with a periodontal probe during exam
Gingival sulcus
The space between the tooth surface and narrow cervical collar of free gingiva
Gingival sulcus
Covers the roots of the teeth
Cementum
The alveolar bone may also be called:
Alveolar process
Forms and supports the tooth sockets:
Alveolar bone
Surrounds the tooth root and attaches to the alveolar bone:
Periodontal ligament (PDL)
What makes up the periodontal ligament?
Oblique periodontal fibers
Soft tissue component of the tooth that occupies the internal cavity of the tooth:
Pulp
The outline of the pulp cavity follows the:
External outline of the tooth
The pulp cavity can be divided into:
Pulp chamber and pulp canals
The functions of the pulp include: (4)
- Formative
- Nutritive
- Sensory
- Defensive
What is the primary function of the pulp:
Formative- pulp cells from dentin
What is the formative function of the pulp?
Pulp cells from dentin
What is the nutritive function of the pulp:
Supply the tooth with blood
What is the sensory function of pulp?
Nerve supply to tooth
What is the defensive function of the pulp?
Forms reparative dentin in response to mechanical , thermal, chemical, and bacterial insults
The pulp chamber has a ____ with projections called ____.
Roof ; pulp horns
Has a roof with projections called pulp horns:
Pulp chamber
Extends from the floor of the pulp chamber to the apical foramen:
Root/pulp canal
Where does the root/pulp canal extend from?
Floor for pulp chamber to apical foramen
Opening of the pulp canal located at or near the root apex:
Apical foramen
May be present; small branches of pulp canals branching off the main canal:
Accessory canals
Small branches of pulp canals branching off the main canal:
Accessory canals
How is the shape of the pulp chamber determined?
By contour of crown
The shape of the pulp chamber follows the:
Size and number of cusps
What 3 things is the size of the pulp chamber affected by:
Age, caries, trauma
The pulp chamber size decreases with:
Age
The pulp chamber size is reduced with:
Caries
What may result in complete obliteration of the pulp space?
Trauma
Inflammatory condition altering gingival tissues:
Gingivitis
What are the clinical changes evaluated as indicators of gingival health vs. disease:
- Redness
- Rolled margins
- Smooth and shiny surface texture
- Loss of resiliency
- Bleeding upon probing
Describe the progression of periodontitis:
Slow
Loss of attachment and underlying bone with increased pocket depths:
Periodontitis
Periodontitis is typically a slowly progressive disease but may have times of _____ followed by periods of ____
Rapid attachment loss; inactivity
What local factors are contributory to periodontitis?
- Restoration over hands
- Food impaction
- Open contacts
Apical migration of gingival tissues (with underlying bone loss) resulting in exposure of root surface:
Gingival recession
The gingival margin is apical to ______ in gingival recession
CementoEnamel junction
In gingival recession, the papilla may be:
Blunted or rounded
Gingival recession may be a part of active ___ or previous ____ that is now ____
Active perio disease; previous disease now under control
Gingival recession should NOT be considered:
Part of aging
What conditions are contributory to gingival recession?
- Poorly aligned teeth
- Lack of attached gingiva
- Aggressive tooth brushing
The branching point on a multi-rooted tooth:
Furcation
In healthy individuals, furcation cannot be probed because:
They are filled with bone and periodontal attachment
With advanced perio disease, attachment loss and bone loss may reach a furcation area resulting in:
Furcation involvement