embryology
study of prenatal development throughout the stages before birth
histology
study of the structure and function of tissues on a microscopic level
3 periods of prenatal development
preimplantation, embryionic, fetal
osteoclast
cells that resorb bone
osteoblast
cells that form bone
which week of pregnancy are all primary teeth developed?
17th
clinical crown
visible in the oral cavity
anatomic crown
covered with enamel
embryonic period
2nd to 8th week
conception
union of male sperm and female ovum
succedaneous
permanent teeth with primary predecessors, ex. anterior teeth and premolars
periodontium
tissues that support teeth in the alveolar bone
ameloblasts
cells that form enamel
odontoblases
cells that form dentin
cementoblasts
cells that form cementum
cementoclasts
cells that resorb cementum
osteoclasts
cells that resorb bone
exfoliation
normal process of shedding primary teeth
oral mucosa is made up of
stratified squamous epithelium
masticatory mucosa
oral mucosa that covers the hard palate, dorsum of the tongue, and gingiva
first period of prenatal development
preimplantation period
what period of prenatal development is the most critical?
embryonic period
embryonic layer that differentiates into cartilage, bones and muscles is
mesoderm
which branchial arch forms the bones, muscles, nerves of the face, and the lower lip
first
which branchial arch forms the side and front of the neck
second
the hard and soft palates are formed by the union of the primary and secondary
palates
when does the development of the human face occur
fifth and eighth weeks
at birth, how many teeth are in various stages of development
52
name the process for the laying down or adding of bone
deposition
name the process of bone loss or removal
resorption
growth, calcification, and ______ are the three primary periods in tooth formation
eruption
the final stage in the growth period is the
bell
what is formed in the occlusal surface when multiple cusps join together?
fissure and dentinoenamel junction
what is the name of the process by which teeth move into a functional position in the oral cavity
eruption
the portion of a tooth that is visible in the mouth is the
clinical crown
the cementoenamel junction is located
between the cementum and enamel
the hardest substance in the human body is
enamel
what is the name of the largest mineral component in enamel
calcium
pain is transmitted through dentin by way of
dentinal fibers
the type of dentin that is also known as reparative dentin is
tertiary dentin
the pulp is made up of
blood vessels and nerves
what type of cells form the intercellular substance of the pulp
fibroblasts
the primary function of the periodontal ligament is
support, maintain and retain tooth
which type of oral mucosa forms the inside of the cheeks, lips, and soft palate
lining mucosa
which trimester is the most critical for the development of the baby
first