Development Of Teeth Flashcards
Odontogenesis occurs in the 6th week of intrauterine life with the formation of a …………. …………. ……………
primary epithelial band
The primary epithelial band divides into a lingual process called ……… …………. and a buccal process called vestibular lamina
dental lamina
Initiated odontogenic cells continue to proliferate forming ovoid swellings called ………. ………… in areas where teeth are going to form.
Enamel organs
All deciduous teeth arise from this ……….. ………….
Dental lamina
Permanent successors arise from its ………….. …………
lingual extension
Permanent molars from its ……….. …………..
distal extension
The tooth germ consists of
an ectodermal component—the ……… ………..
the ectomesenchymal components— ………. ………..
the dental …………
enamel organ
the dental papilla
follicle
The enamel is formed from the ………. …………
Enamel organ
dentin and pulp form from the ……………
Dental papilla
the supporting tissues, the cementum, periodontal ligament and the alveolar bone form from the ……….. ……..
Dental follicle
Two types of cells can be recognized at the bud stage: outer low ……………. cells and inner tightly packed …………. cells.
Columnar and polygonal
The junction of inner and outer enamel epithelium is called cervical loop which marks the future CEJ(cementoenamel junction) and it is an area of ……….. ………… …………
intense mitotic activity.
All differentiation and formation of enamel and dentin in crown of the tooth takes place in the future …………… …………
incisal/cuspal regions.
Advanced bell stage is characterized by the commencement of ………… and root formation.
commencement of mineralization
The formation of dentin occurs first as a layer along the future dentinoenamel junction (DEJ) in the region of future cusps and proceeds ……….. and ………..
pulpally and apically