Development and Growth of Teeth

Question 1

Tooth bud components develop during the ______ week after the _________ around 28 days

Answer 1

5-6th week

Buccopharyngeal membrane ruptures

Question 2

Dental Papilla produces

Answer 2

Pulp and Dentin

Question 3

Dental Follicle produces

Answer 3

Cementum, PDL, Bundle Bone (Alveolar Bone Proper)

Question 4

Enamel Organ produces

Answer 4

Enamel (forms downward growth of Ectoderm)

Question 5

______ is a continuous arch shape plate of thickened Odontogenic epithelium that begins from a proliferation of ______

Answer 5

Dental Lamina

Basal Ectoderm cells

Question 6

Formation of Dental Lamina occurs during the _____ week from fusion of ______ with _______

Answer 6

6th week

Medial processes, Two Maxilla processes

Question 7

Dental Lamina will disintegrate during the ____ stage

Answer 7

Bell

Question 8

The Tooth Bud stage occurs during _____ weeks

Answer 8

5th-6th

Question 9

______ formation is proliferation and growth of oral ectoderm into ectomesenchyme forming _____ between cheek and teeth bearing areas

Answer 9

Vestibular Lamina

Vestibule

Question 10

Tooth Bud stage is represented by first ________ of jaw, the condensation of ______

Answer 10

Epithelial incursion into ectomesenchyme

Ectomesenchyme

Question 11

_____ occurs during 8-9 weeks

Answer 11

Cap Stage

Question 12

As tooth grows it brings along part of _____

Answer 12

Dental Lamina

Question 13

Epithelial outgrowth on ball of ectomesenchyme is called _____

Answer 13

Enamel Organ

Question 14

Enamel Organ consists of ____, _____, and ______

Answer 14

Inner Enamel Epithelium
Outer Enamel Epithelium
Stellate Reticulum

Question 15

OEE is ___ while IEE is _____

Answer 15

Cuboidal

Columnar

Question 16

Enamel Knot is projection of ______

Answer 16

IEE

Question 17

Enamel Cord is a projection of _____

Answer 17

OEE

Question 18

Dental Papilla is found under the IEE and is formative organ of _____

Answer 18

Odontoblasts

Question 19

Bell Stage occurs around the _____ week and is divided into ______ early stage and _______ late stage

Answer 19

14th

Histodifferentiation, Morphodifferentiation

Question 20

During Bell Stage the IEE will differentiate into _______ inducing formation of odontoblasts from _______

Answer 20

Columnar Ameloblats

Ectomesenchyme Dental Papilla

Question 21

Stratum Intermedium is derived from ______ and is necessary for _____ formation since it contains ______

Answer 21

IEE
Enamel
Alkaline Phosphate

Question 22

Reciprocal Induction occurs as _____ must be secreted before _____ can be formed

Answer 22

Dentin

Enamel

Question 23

IEE and OEE will form _____

Answer 23

Hertwig’s Epithelial Root Sheath

Question 24

Root formation begins after _______ have ______

Answer 24

Enamel and Dentin

Reached site of CEJ

Question 25

Double layer of epithelium of HERS proliferates forming a _____

Answer 25

Diaphragm

Question 26

Epithelium adjacent to diaphragm proliferates and elongates, the growth is the _______

Answer 26

Root Sheath

Question 27

Ectomesenchyme of Dental Follicle contact Dentin and differentiate into ________ that form _____ on ____ surface

Answer 27

Cementoblasts
Cementum
Dentin