Lecture 2: Terminology and Chronology Flashcards by Grant Teichmeier

Universal Numbering System

1-32
1= Right Maxillary 3rd molar
32= Right Mandibular 3rd molar

How well did you know this?

Not at all

Perfectly

Palmer Notation System

UTILIZES quadrants and symbols for identifying teeth.

How well did you know this?

Not at all

Perfectly

FDI System of Numbering

Breaks into four quadrants and lists through 1-8

1 being central incisors and 8 being third molars

How well did you know this?

Not at all

Perfectly

Anterior Teeth

6-11 Maxillary right Canine through Maxillary left canine

22-27 Mandibular right canine through mandibular left canine.

How well did you know this?

Not at all

Perfectly

What are the numbers for the Central incisors?

Maxillary: Teeth #8 and #9
Mandibular: Teeth #24 and #25

How well did you know this?

Not at all

Perfectly

What are the numbers for the lateral incisors?

Teeth #7, 10 (max)

Teeth #23, 26 (mand)

How well did you know this?

Not at all

Perfectly

What are the numbers of the Canines?

Teeth #6, 11 (max)

Teeth #22, 27 (mand)

How well did you know this?

Not at all

Perfectly

What constitutes the POSTERIOR teeth?

the pre-molars and the molars

How well did you know this?

Not at all

Perfectly

What are the numbers for the premolars?

Teeth #4, 5, 12, 13 (max)

Teeth #20, 21, 28, 29 (mand)

How well did you know this?

Not at all

Perfectly

What are the numbers for the Molars?

• Teeth #1, 2, 3, 14, 15, 16 (max) • Teeth #17, 18, 19, 30, 31, 32
(mand)

How well did you know this?

Not at all

Perfectly

How does naming primary teeth differ from deciduous teeth when using the Universal System of Notation?

Primary teeth are identified (A-T)
A= Right Maxillary 2nd molar
T= Right Mandibular 2 Molar

How well did you know this?

Not at all

Perfectly

IN VIVO

looking or taking place in a living organism

How well did you know this?

Not at all

Perfectly

Vermilion Zone

The red zone of the lips.

How well did you know this?

Not at all

Perfectly

Vermillion Border

sharp junction

of the red zone and skin

How well did you know this?

Not at all

Perfectly

Nasolabial groove

demarcates

lip and cheek

How well did you know this?

Not at all

Perfectly

Philtrum of lip

middle of upper

lip

How well did you know this?

Not at all

Perfectly

Angle/Corner of the

mouth/Commissure

the corners of the lips

How well did you know this?

Not at all

Perfectly

Labiomental groove

between the lower lip and the chin. (see a picture)

How well did you know this?

Not at all

Perfectly

Using a picture Draw the following structures on the face

Vermilion Zone 
Vermilion Border
Nasolabial groove
Philtrum of lip
Angle/Corner of the
mouth/Commissure

Labiomental groove

How well did you know this?

Not at all

Perfectly

What part of the mouth is the oral Vestibule

Slit like space between teeth and lips/cheeks

How well did you know this?

Not at all

Perfectly

Labial/Buccal Frena:

attachments of the lips
and cheeks to the
alveolus (bony area
surrounding the teeth)

How well did you know this?

Not at all

Perfectly

What structures lie on the hard palate. Using a picture, please identify each

Incisive Papilla
Rugae
Midline Palatine Raphe

How well did you know this?

Not at all

Perfectly

How much of the roof of the mouth does the hard palate occupy?

2/3

How well did you know this?

Not at all

Perfectly

Houw much of the roof of the mouth does the soft palate occupy?

1/3

How well did you know this?

Not at all

Perfectly

What structure hangs off the soft palate?

Uvula

What structures comprise the orpharynx

``` Tonsils Anterior (palatoglossal arch) & Posterior (palatopharyngeal arch) Pillars of the Fauces ```

mylohyoid muscle

The paired muscles that form the floor of the mouth. This muscles runs from the mandible to the hyoid bone and forming the floor of the oral cavity of the mouth. It is named after its two attachments near the molar teeth ("mylo" comes from the Greek word for "molar"). These muscles are mesodermal in embryologic origin.

Sublingual folds: Find in the drawing

Raised folds where submandibular salivary ducts open

Lingual Frenum: Find in drawing

The lingual frenum is a fold of mucous membrane connecting the ventral tongue to the floor of the mouth. In general, lingual frenum serves multiple roles; its main function is to support the tongue and aid in limiting its movement in different directions.

Structures in the Cheek and Retromolar Region:

Buccal Mucosa | Retromolar Pad

Buccal Mucosa

Buccal mucosa is the lining of the cheeks and the back of the lips, inside where they touch the teeth

retromolar pad

The retromolar pad is a mass of soft tissue located at the posterior end of the mandibular alveolar ridge. This pad covers the underlying bone with surrounding attached muscle fibers.

Why is the chronology of Development important?

Assess the patient’s DENTAL AGE: Is the patient developing normally? Important for procedures like: endodontic therapy, and whether or not to extract a tooth. Forensics and Medications`

First sign of tooth development is at:

6-7 weeks in utero

Deciduous teeth begin to calcify at:

13-20 weeks in utero

When do ALL DECIDUOUS teeth begin to calcify?

18-20 weeks in utero

When do the deciduous teeth begin to erupt?

6-30 months after birth.

Eruption:

emergence into the | oral cavity

Exfoliation:

loss of the deciduous | tooth

Know the Composition of the Deciduous teeth:

* 2 central incisors in each arch * 2 lateral incisors in each arch * 2 canines in each arch * 2 first molars in each arch * 2 second molars in each arch

The deciduous dentition excludes what type of teeth?

premolars

Deciduous Eruption: Mandibular central incisors

6-8 months

Deciduous Eruption: Maxillary central incisors

10 months

Deciduous Eruption: Maxillary lateral incisors

11 months

Deciduous Eruption: Mandibular lateral incisors

13 months

Deciduous Eruption: Maxillary first molar

16 months (first)

Deciduous Eruption: Mandibular first molar

16 months (later)

Deciduous Eruption: Maxillary canine

19 months

Deciduous Eruption: Mandibular canine

20 months

Deciduous Eruption: Mandibular second molar

27 months

Deciduous Eruption: Maxillary second molar

29 months

Time frame when all deciduous teeth erupt (Normal)

6-30 months

Deciduous Eruption Pattern

Incisors --> First molars--> Canines--> Second molars

When have all deciduous teeth begun to calcify?

18-20 weeks in utero

When do primary teeth begin to erupt?

6 months after birth

When have all primary teeth erupted?

approximately 30 months

How long does the deciduous dentition last?

until the first permanent tooth begins to erupt. APPROXIMATELY 6 years

Deciduous dentition:

``` only deciduous teeth present (up to 6 years of age) ```

Mixed Dentition:

mixture of deciduous | and permanent teeth present

Permanent Dentition:

only permanent teeth present

Composition of Permanent Dentition:

* 2 central incisors per arch * 2 lateral incisors per arch * 2 canines per arch * 2 first premolars per arch * 2 second premolars per arch * 2 first molars per arch * 2 second molars per arch * 2 third molars per arch

Succedaneous teeth:

permanent teeth that | replace deciduous teeth

Non-succedaneous teeth:

permanent teeth | that do not replace deciduous teeth

What teeth are classified as Non-succedaneous teeth

Molars

Eruption of Permanent Teeth: Mandibular first molars

6 years (first)

Eruption of Permanent Teeth: Maxillary first molars

6 years later | Both non-succedaneous teeth!

Eruption of Permanent Teeth: Mandibular central incisor

6-7 years

Eruption of Permanent Teeth: Mandibular lateral incisor

7-8 years

Eruption of Permanent Teeth: Maxillary central incisor

7-8 YEARS

Eruption of Permanent Teeth: Maxillary lateral incisor

8-9 years

Eruption of Permanent Teeth: Mandibular canine

9-10 years

Eruption of Permanent Teeth: Maxillary first premolar

10-11 years

Eruption of Permanent Teeth: Mandibular first premolar

10-11 years

Eruption of Permanent Teeth: Maxillary second premolar

10-11 years

Eruption of Permanent Teeth: Mandibular second premolar

10-12 years

Eruption of Permanent Teeth: Maxillary canine

11-12 years

Eruption of Permanent Teeth: Mandibular second molar

11-13 years

Eruption of Permanent Teeth: Maxillary second molar

12-13 years

Eruption of Permanent Teeth: Mandibular third molar

17+ years

Eruption of Permanent Teeth: Maxillary third molar

17+ years

Time frame for root development of permanent teeth

2-3 years after the eruption of teeth

Time frame for Calcification of crown of teeth to be completed

1/2 time of eruption and | add 1 year

KNOW: when calcification of each of the | teeth begins

1/2 time of eruption and | add 1 year

First part of the tooth to calcify is.........

the crown

Important Study Information:

sequence of eruptions and general time frames of eruption.