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27 terms

Primary teeth

Chapter 18
deciduous teeth
are also called primary or baby teeth
How many deciduous teeth are replaced with Permanent teeth?
every deciduous or primary tooth will be replaced by a permanent tooth
How many deciduous teeth are there in the mouth ?
there are 20 deciduous teeth in the mouth
When does the first permanent tooth erupt?
around age 6
What is a mixed dentition?
a mixed dentition exists when the person has both primary and permanent teeth present
mixed dentitions are typically seen in those that are ______years of age
6 - 13 years of age
What type of tooth does a Primary dentition not have?
premolars and 3rd molars
In order to identify a specific primary tooth, each primary tooth is given ___ in the Universal Numbering System.
A child gets his first complete set of primary teeth by the age of __.
The Main purpose of the primary dentition is
to hold a space for permanent teeth.
FIrst molars are labeled
b & i
Eruption ___ is more important than eruption ___ in the primary dentition.
sequence, dates
How many tissue layers for the enamel surface?
__ to __ weeks in utero tooth buds develop.
6, 7
____ ____ come in before canines
first molars
Green-gray residue consists of the fused tissue of ____ ____ ____
reduced enamel epithelium
Mineralization of the primary teeth begins in utero at ___ to ___ weeks.
By ___ to ___ weeks during prenatal development, all primary teeth have started to mineralize.
13 to 16
There are usually ___ primary teeth visible in the oral cavity at birth.
The primary dentition takes about ___ to ___ years to be completed. Begining with the ___ ____ ____ ____, and later being completed with root formation in the ___ ____ ____ ____.
2,3, primary mandibular central incisors, primary maxillary second molar
interproximal spaces are
is the area between adjacent tooth surfaces.
interproximal spaces are necessary between primary teeth for the
proper alignment of future permanent teeth
Primate spaces are
development spaces between primary teeth.
Primate spaces can be seen between..
primary maxillary lateral incisor and canine and also between primary mandibular canine and first molar
extensive extrinsic staining of the primary teeth may be attributed to
Nasmyth's membrane (green-gray residue)
extensive wear