Primary & Mixed dentition

Question 1

Formal term for baby teeth

Answer 1

Primary (decidious) teeth

Dont call them baby, milk teeth cause it denotes lack of importance

Question 2

What is tooth letters for primary teeth?

Answer 2

A-T
Apple Jacks at K-marT

Question 3

What is dental formulae for primary teeth?

Answer 3

In each quadrant
I 2/2 C1/1 M2/2

no primary pre-molars!

Question 4

What is dental formulae for permanent teeth?

Answer 4

In each quadrant
I2/2 C1/1 P2/2 M3/3

Question 5

What teeth are succedaneous (replace teeth)

Answer 5

• Inciors
• Canines
• Pre-molars
  molars are fresh, non-succedaneous

Question 6

What teeth come in at 6 years old?

Answer 6

Permanent 1st molars!
3,14, 30, 19

“ 6 year old molars”

Question 7

WHat teeth are normally lost at 5/6 years old?

Answer 7

Primary incisors

Question 8

From birth to 5 years old what is dentiton?

Answer 8

All primary dentition
* Intact primary teeth

Question 9

What occurs if you have early loss of primary teeth?

Answer 9

You will have a space for a while because the permanent teeth are not ready to erupt yet.

Question 10

From 6-13 years old what is dentiton like?

Answer 10

Mixed dentition

Question 11

Explain the result of pressure and space formation in orthodontic movment.

Answer 11

Pressure= osteoclast bone resobriton
SPace= osteoblast ot build new bone

Question 12

What does pressure of a permanent tooth erupting below a primary tooth do?

Answer 12

Causes resorbtion of the primary root.

Question 13

Function of primary dentiton?

Answer 13

• Chewing (mastication)
• Support for lips and cheeks
• Formulation of speech
• Maintain arch space and room for secondary teeth

Question 14

What is one of the causes of adult tooth crowding

Answer 14

premature primary tooth loss. Nothing to hold space.

Question 15

How is poor diet and poor oral hygine a consesquence of primary teeth deccay

Answer 15

• dont want to eat because it hurts
• Dont want brush or clean because it hurts

Question 16

Spots of discoloration on permanent teeth as a result of reperative dentin formation due to decay from primary teeth trasncending down to affect the developimg pernanent tooth.

Answer 16

Turner Spots

Localized issue

Question 17

What can cause early tooth loss?

Answer 17

• Tooth destruction for dental caries
• Trauma
• Endocrine disorders, immune disorders, etc.

Question 18

what kind of dental caries is this?

Answer 18

Baby bottle decay!

Question 19

Delayed tooth loss due to
* Endocrine disorders such as hypothyroidism or hypopituitarism
* Ectodermal dysplasia
* Genetic disorders
* Vitamin D resistant rickets

Answer 19

Delayed Exfoliation

Question 20

What are some symptoms associated with teething but not only limited too

Answer 20

• Sleep disturbances
• Descrease apetitine
• Loose stool
• Vomiting

does nto always mean tooth eruption

Question 21

WHat are good reccomended intervention for teething?

Answer 21

• Clean wet washcloth
• Refrigerated teething rings
• Topical anesthetic (caution, 2y/o +)

Cold= numb gums

Question 22

What are some general traits of primary dention

Answer 22

• Smaller than replacment tooth
• Constriction at CEJ and cervical crown budlges
• Long roots compared to crowns
• Less mineralized

Question 23

Dentition trat of all primary teeth

Answer 23

• Thinner enamel and dentin
• Whiter
• Fewer anomales

Question 24

Primary teeth are ____ than those of same name

Answer 24

Smaller

Question 25

What does this picture display?

Answer 25

Marked **cementoenamel junction (CEJ) constrictio**n and **cervical crown bulges**

Question 26

Answer 26

* Thinner enamel and dentin layer * Whiter * Fewer anomalities

Question 27

Compare color of permanent teeth and primary teeth

Answer 27

Permanent (ccentrals) are distinctly darker than primarys

Question 28

Primary anterior teeth have ____ cervical bulges facial and lingually

Answer 28

**prominant cervical buldges*

Question 29

Primary anterior teeth have what root bend at apex? Thin where?

Answer 29

Labial root bend at apical 1/3rd Thin MD

Question 30

DO Primary anterior teeth have labial depressions, mamelons, or perikymata?

Answer 30

No. None of that.

Question 31

Primary molars have prominant ____ and exaggeraated ____ on facial

Answer 31

* Prominent **mesial cervical ridge** (bulges) * exaggerated **cervical line curve** apically on facial

Question 32

Primary molars taper narrowower where?

Answer 32

Narrower toward occlusal table, with narrow table.

Question 33

Primary molar are wider ____ than ___

Answer 33

Wider MD that OG

Question 34

Primary molar surface occlusal anatomy is?

Answer 34

Shallow, less grooves and depressions.

Question 35

Which primary molar is larger?

Answer 35

2nd larger than 1st.

Question 36

Primary molar roots are?

Answer 36

* Thin and slender * Diverge farther to make room for underlying PM * Short root trunk, frucation near crown

Question 37

On Primary Molars, since the root frucation is near crown due to small root trunk what does this result in?

Answer 37

Caviites can easly pass into the root easily.

Question 38

Describe trend in Primary insciosr labial view

Answer 38

**All crowns are longer incisocervically than MD** *except primary max central (wider MD)

Question 39

Primary max central incisor is wider ____ than ____ unlike perment incisor or any other primary

Answer 39

Wider MD than IC

Question 40

Primary incors have roots that are ____ than crowns.

Answer 40

LOnger roots!

Question 41

Descirbe Primary incsiors from a lingual view

Answer 41

* Prominant lingual cingulum * MR most prominant on max central * less anatomy on mand.

Question 42

Describe primary incisors from proximal view

Answer 42

* WIde Labio-lingually * CEJ curve greater on mesial * Root bend facially * Max incisor roos can ben lingually at cervical half

Question 43

Describe Primary incisors incisal view

Answer 43

* Max central much wider MD than FL * Mandibular MD is equal to FL

Question 44

Describe Primary Canine Labial view

Answer 44

* Max= as wid as long * Mand longer IC than MD * Root taper blunt apex

Question 45

**mesial contact** of ____ canine crown **more cervical**than distal

Answer 45

Primary Maxillary Canine | *only other is secdonday mand 1sp PM

Question 46

____ canine have **pointed cusps** and **mesial cusp ridges longer** than distal

Answer 46

Primary Max Canine. | * only other is Max 1st PM

Question 47

____ Canine have quite pointed but like secondary canine: **mesial cusp ridges shorter than distal**

Answer 47

Mandibular Canine

Question 48

From a lingual view, whihc primary canines have more prominant cigulum and MR?

Answer 48

Primary Maxillary Canine | Mand= fain and distinct ridges

Question 49

____have a cervical 3rd even thicker than incisors

Answer 49

Primary Canines

Question 50

Pronounced **labial and lingual cervical bulge**s with pronounced concave **“S” shape** on ____ canines

Answer 50

Maxillary Canines | Thicker tooth!

Question 51

On primary canines where are the cusp tips postioned?

Answer 51

max= labial to root axis Mand= lingual to root axis **same as secondary teeth**

Question 52

On both Primary molars the CEJ curves more on the ____ and the roots bend ____ on apical 3rd

Answer 52

* CEJ curve more on mesial * Roots be labial on apical 3rd

Question 53

which canine is wider mesiodistally than faciolingually

Answer 53

Maxillary canine

Question 54

canine outlines are diamond shaped from incisal

Answer 54

Mandibular canine

Question 55

How many roots do the max and mand primary molars have?

Answer 55

* Max= 3 roots * Mand= 2 roots

Question 56

Primary molars are ____ MD than the ____ that will replace them

Answer 56

Wider MD than premolars that will replace them. **hold their space**

Question 57

All primary molars have prominant ____ bulges

Answer 57

Prominant buccal buldges

Question 58

All primary molars taper towards ____ which results in what?

Answer 58

Taper up to the occlusal surface from buccal buldge resulting in a small oclussal table.

Question 59

All primary molars have a ____ CEJ that curves more apically

Answer 59

Mesial CEJ deeper

Question 60

Primary vs Permanent Molars 8 traits.

Answer 60

1. Bulbous crown. 2. Cervical constriction. 3. Narrow occlusal table 4. Red arrow in figure (b) 5. Thin enamel 6. High pulp horns (closer to occlusal table) 7. Narrow root canals 8. Thin pulpal floor (cavity enter roots easily) 9. Developing permanent tooth

Question 61

What primary molars resemble the permanent 1st molars?

Answer 61

Prmary 2nd molars look like permanent 1st molars. **MINI ME** | Distal to them once the 6 y/o permanent molars erupt.

Question 62

Explain Primary Max 2nd molar type traits

Answer 62

* 4 cusps + carabellie * Oblique ridge (smaller) * MB cusp is almost equal in size to ML cusp

Question 63

Explain Primary Mand 2nd molar type traits

Answer 63

* Similar to permanent mandibular 1st molar but smaller * 5 cusps * DB cusp widdest, MB and Distal cusp similar size

Question 64

On primary mandibular 2nd molars which cusp is widest?

Answer 64

**Distobuccal cusp is widdest** * MB and D are similar size | this differes from permanet mandibular 1st molar which MB is the widdest

Question 65

Primary 1st molars are what?

Answer 65

**Wannabes** Max 1st primary= resembles max PM Mand 1st Primary= resemeble no tooth

Question 66

# What tooth? Crown from occlusal view is similar to maxillary premolar (**two prominent cusps = mesiobuccal and mesiolingual**) but also very** small distobuccal** and **distolingual cusps** (as on secondary molars)

Answer 66

Primary Maxillary 1st Molar

Question 67

Primary Max 1st molar are wider ____ than ____

Answer 67

Wider FL than MD

Question 68

What does the occlusal table of a primary max 1st molar look like?

Answer 68

Pinched in, similar to PM

Question 70

What groove patterns to Primary 1st Molar exhibit?

Answer 70

H pattern

Question 71

Explain traits of primary Mandibular 1st molar

Answer 71

* Ressemble no other tooth * 4 cusps * Wider MD than high OC * Prominant MB cerrical ridge with more apical CEJ on mesial

Question 72

What primary molar has a prominant mesial transverse ridge and MMR?

Answer 72

Primary Mandibular 1st Molar

Question 73

What primary molar has a **prominant ML cusp** and occlsual **table wider BL on distal half?**

Answer 73

Primary Mand 1st molar

Question 74

WHat tooth?

Answer 74

Primary Mandibular 1st Molar.

Question 75

What tooth?

Answer 75

Primary mandibular 1st molar

Question 76

Whichis primary which is Permanent?

Answer 76

Question 77

# Posterior only Identify Mixed Dentition

Answer 77

Question 78

What is unusual about this mouth?

Answer 78

Oclussal plane is lower. Alkylosed tooth.

Question 79

What is unusual about this mouth?

Answer 79

Tiny retained primary lateral that never fell out.