Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
76 Cards in this Set
- Front
- Back
|
When does dental development usually begin?
|
5th or 6th week of prenatal life.
|
|
|
What is a dental lamina?
|
A horse-shoe shaped band
|
|
|
What are the growth stages of tooth development?
|
The Bud, Cap, and Bell stages.
|
|
|
When does the bud stage begin?
|
As soon as the dental lamina is formed/
|
|
|
How many tooth buds are usually present in each dental arch?
|
10 tooth buds.
|
|
|
Tooth buds for permanent teeth form between what ages?
|
Permanent teeth form between the 17th week of fetal life and 5 yrs of age.
|
|
|
What is the cap stage?
|
Proliferation (reproduction or multiplication) of teeth.
|
|
|
What is the zone under that cap called?
|
A dental papilla- a small nipple shaped elevation.
|
|
|
What is the bell stage?
|
The last period of growth, also known as histodifferentiation.
|
|
|
Morphodifferentiation is known as?
|
the tooth's bell shape forming.
|
|
|
Enamel forming cells are called?
|
ameloblast
|
|
|
Dentin forming cells are called?
|
odontoblast
|
|
|
Ameloblast and odontoblast calls are lined up on what?
|
A dentinoenamel junction boundary line.
|
|
|
The odontoblast and cementoblast form the?
|
The cementodentinal junction.
|
|
|
The dentinoenamel junction & cementodental junction are the?
|
Blueprint of a developing tooth.
|
|
|
Apposition refers to what?
|
Depositing of the matrix for the hard dental structures.
|
|
|
Calcification is defined as?
|
Process by which organic tissue becomes hardened by a deposit of calcium or any mineral salts.
|
|
|
The cementonenamel junction is?
|
Linear junction between the apical border of the enamel cap and the root cementum.
|
|
|
For complete growth of permanent teeth it takes how long?
|
3 years from crown completion to the time the tooth emerges into the mouth.
|
|
|
When primary teeth prepare to fall out and make way for the eruption of permanent teeth, they go through a process called?
|
Exfoliation.
|
|
|
Histology is the study of what?
|
Anatomy including the minute structure, composition, and functions of tissues.
|
|
|
A tooth is divided into how many parts?
|
Two parts: the crown and one or more roots.
|
|
|
An anatomical crown is?
|
A portion of the tooth encased in enamel.
|
|
|
What is a clinical crown?
|
When part of the crown is exposed (visible) in the mouth.
|
|
|
The root of a tooth is covered by?
|
Cementum
|
|
|
What is a Alveolar bone?
|
A thin layer of compact bone that forms the tooth socket.
|
|
|
Where is the Furcation?
|
Region where the roots separate.
|
|
|
Bifurcated is?
|
When a tooth has 2 roots.
|
|
|
Trifurcated is ?
|
When a tooth has 3 roots.
|
|
|
Mutirooted is when?
|
A tooth has 4 or more roots
|
|
|
The tip of each tooth is called?
|
The Apex.
|
|
|
The Apical Foramen is know as?
|
A small opening that allows for the passage of blood vessels and nerves into the tooth.
|
|
|
A slight indentation that encircles the tooth and marks the junction of the anatomical crown with the root is know as?
|
The Cervix or Cervical Line.
|
|
|
The color of Enamel is?
|
Translucent and can vary in color from yellowish to grayish white.
|
|
|
Enamel protects what?
|
Dentin.
|
|
|
What is the hardest tissue in the body?
|
Dentin- It is the hardest tissue in the human body and consists of approximately 96% inorganic minerals, 1% organic materials, and 3% water.
|
|
|
What are Dentin's main inorganic components?
|
Calcium and Phosphorus.
|
|
|
Enamel can endure how much pressure?
|
100,000 pounds per square inch.
|
|
|
Dentin is light yellow and?
|
Very porous; constitutes the largest portion of the tooth.
|
|
|
Dentin is harder that ______ but softer than _____?
|
Bone; Enamel.
|
|
|
True or False, Dentin is a living Tissue?
|
True.
|
|
|
Dentin must be protected during which procedures?
|
Operative or prosthetic procedures ,from dehydration (drying) and thermal shock
|
|
|
The bone like tissue that covers the root of teeth in a thin layer is called?
|
Cementum.
|
|
|
The main function of cementum is to?
|
Anchor the teeth to the bony walls of the tooth sockets.
|
|
|
The soft tissue that develop's inside the tooth is called?
|
Dental Pulp.
|
|
|
The chief function of the pulp is to?
|
Form dentin.
|
|
|
Tissues that surround and support the teeth are collectively called?
|
Periodontium
|
|
|
True or False? The main function of the Periodontiun is to support, protect, and provide nourishment to the teeth
|
True.
|
|
|
The only tissue considered as both a basic part of the tooth and a component of the periodontium is?
|
Cementum
|
|
|
The bony portion of the maxilla and mandible where the teeth are embedded and tooth roots are supported is called?
|
The Alveolar Process.
|
|
|
A bone that divides one socket from another is known as?
|
The Interdental Septum.
|
|
|
True or False? The cortical plate is composed of facial (toward the face) and lingual (toward the tongue) plates of compact bone.
|
True.
|
|
|
The highest point of the Alveolar Crest is the?
|
Alveolar Ridge.
|
|
|
This kind of bone lies within the central portion of the alveolar process.
|
Trabecular or Spongy Bone.
|
|
|
When viewed by a radio graph this bone has a web like appearance?
|
Travecular Bone.
|
|
|
True or false? The alveolar bone proper is a thin layer of compact bone?
|
True
|
|
|
The Periodontal ligament is a thin, fibrous ligament that connects what?
|
The tooth to the bony socket
|
|
|
The Oral Mucosa are?
|
Specialized epithelial tissues that surround the teeth and serve as a lining.
|
|
|
Masticatory mucosa is?
|
Tissue that covers the hard palate and the gingival. Its is light pink in color.
|
|
|
The roof of the mouth is called?
|
The Hard Palate.
|
|
|
The hard palate is covered in and adhered to?
|
The Masticatory mucosa and is firmly adhered to the palatine process.
|
|
|
Which Papilla is located at the midline, and is pear-shaped in appearance?
|
Incisive.
|
|
|
What may be ridge shaped in appearance with a whitish streak at the mid-line?
|
Palatine Raphe
|
|
|
What Extends laterally, and is wrinkled, and has irregular ridges in its appearance?
|
Palatine Rugae
|
|
|
What is Gingiva?
|
Gingiva is firm and resilient encircling the necks of the teeth.
|
|
|
What is the color of healthy Gingiva?
|
The color of healthy gingiva range from pale pink to darker shades (purple to black).
|
|
|
What extends from the gingival crest to the crest of the bone?
|
The Unattached Gingiva.
|
|
|
In a healthy mouth, what is the measurement of soft wall tissue on the unattached gingiva?
|
the portion is approximately 1 to 3 mm wide and forms the soft tissue wall of the gingival sulcus next to the tooth.
|
|
|
The 1mm narrow band of gingiva that forms the immediate collar around the base of the tooth. This area is first to show symptoms of gingivitis
|
Gingival Margin
|
|
|
Popcorn hulls usually get trapped in this area?
|
Gingival Sulcus
|
|
|
This Joins the gingiva to the tooth surface?
|
Epithelial Attachment
|
|
|
The triangular space near the gingiva, that helps prevent food from packing between the teeth.
|
Interdental Papilla
|
|
|
This is located apical to the free gingiva on the labial and lingual aspects.
|
Attached Gingiva.
|
|
|
Where is the Lining mucosa found?
|
Inside of the lips, cheeks, vestibule, soft palate, and under the tongue.
|
|
|
Specialized mucosa is?
|
the mucous membrane on the tongue.
|
|
|
Specialized mucosa is associated with?
|
It is associated with sensations of taste.
|
