Dental chapter 11
Key to occlusion
Permanent maxillary first molar
What are succedaneous teeth?
Permanent teeth that replace primary teeth
A proper contact relationship between adjacent teeth serves the following purposes
Prevents food from being trapped , stabilizes the dental araches by holding the teeth in either arach , protects the interpromximal gingiva tissue
First set of 20 primary teeth is called
Primary dentition
Usually the last teeth to be lost
Canines
Serves as the standard for a normal occlusion
Centric occlusion
When jaws are closed in a position that produces maximal stable contact between the surfaces
Centric occlusion
The area of the mesial or distal surface of a tooth that touches the adjacent tooth in the same arch
Contact area
The exact spot when teeth actually touch
Contact point
Describes the natural teeth in the dental arch
Dentition
The surface of the tooth distant to the midline
Distal surface
Buccal cusps hold the food while the lingual cusps —-
Grind it
The gingiva May be traumatized when food pushes against it
Inadequate contour
Single rooted teeth with a relatively sharp, thin edge. Used to cut food without heavy force
Incisors
The distal surface of the first molar and the medial surface of the second molar are
Proximal surfaces
When teeth are adjacent (next) to each other in the arch
Proximal surfaces
Molars are not what
Succedaneous teeth
Period that takes place between 6 and 12 years old
Mix dentition
Longer than premolars and usually have four or more cusps. Their function is the chew or grind up food
Molars
Crown of the tooth —— toward the cervical line is true for all types of teeth
Narrows
When the teeth of both arches are in contact, the teeth are in
Occlusion
Permanent teeth are numbered
1-32
The system most often used in the US
The universal/nation system
baby teeth are also called
deciduous teeth
The anterior teeth are the
incisors and canines
surface closest to the tongue
lingual surface
The chewing surface
masticatory surface
The surface of the tooth toward the midline
mesial surface
What are the 5 surfaces of the tooth
mesial, distal, facial (labial/buccal), lingual, occlusal/incisal
The posterior teeth are the
premolars and molars
The gingiva will lack adequate stimulation and will be difficult to clean
Overconturing
When first permanent teeth begin to emerge into the mouth
6-12 years old
Each quadrant of the permanent dentition contains _____ teeth, whereas each quadrant of the primary dentition contains _____ teeth.
8 , 5
The incisors and canines are aligned in
A gentle curve
Primary teeth are lettered
A-T
Permanent dentition is divided into —- types of teeth
4
There are —- maxillary and —— mandibular premolars
4,4
Each tooth has —- surfaces
5
What are the 4 types of teeth the permanent dentition is divided into
Incisors , canines , premolars and molars
Facial can be substituted for
Labial and buccal
Premolars and molars are aligned with
Little to no curve
Refers to the abnormal or malpostioned relationships of the teeth when in centric occlusion
Malocclusion
Shaped like a shovel to aid in guiding food into the mouth
Tongue side or lingual side
attrition
Wearing away of tooth