NBDE 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Morphology Homodont dentition | All teeth have the same morphology
🗑
|
||||
| Morphology Heterodont dentition | Teeth have different morphology (eg, humans).
🗑
|
||||
| Monophyodont dentition | One set of teeth
🗑
|
||||
| Diphyodont dentition | Two sets of teeth (eg, humans).
🗑
|
||||
| Polyphyodont dentition | Multiple sets of teeth.
🗑
|
||||
| Anterior teeth | Incisors and canines. 12 total (6 per arch).
🗑
|
||||
| Posterior teeth: | Premolars and molars. 20 total (10 per arch).
🗑
|
||||
| Anatomic crown | The portion of the tooth that extends from the cementoenamel junction (CEJ) to the incisal edge or occlusal surface (enamel covered portion of the tooth).
🗑
|
||||
| Clinical crown | The portion of the tooth that extends incisally or occlusally
from the gingival margin (clinically visible portion of the tooth).
🗑
|
||||
| Incisal edge | The chewing surface of anterior teeth
🗑
|
||||
| Occlusal surface | The chewing surface of posterior teeth consisting of cusps, ridges, and grooves.
🗑
|
||||
| Occlusal table | The occlusal surface within the cusp and marginal ridges.
🗑
|
||||
| Lobe | The primary center of enamel formation in a tooth
🗑
|
||||
| lobes are represented by | cusps, mamelons, and cingula
🗑
|
||||
| Lobe are separated by | developmental depressions (anterior teeth) or developmental grooves (posterior teeth).
🗑
|
||||
| Mamelon | A round extension of enamel
🗑
|
||||
| Where is the Mamelon? | on the incisal edge of all incisors.
🗑
|
||||
| How many Mamelon per incisor? | three mamelons per incisor (one for each facial lobe)
🗑
|
||||
| What is the mamelon often? | They are often translucent because of a lack of underlying dentin
🗑
|
||||
| Mamelon worn down by? | by attrition and mastication;
🗑
|
||||
| Mamelon presence in adults is an indication of | malocclusion.
🗑
|
||||
| Cingulum | A bulbous convexity of enamel
🗑
|
||||
| Cingulum located | on the cervical third of the lingual surface of all anterior teeth.
🗑
|
||||
| Cusp | A large elevation of enamel
🗑
|
||||
| Cusps located | on the occlusal surface of all posterior teeth
🗑
|
||||
| who is the interior tooth that has Cusps? | and the incisal edge of canines.
🗑
|
||||
| Tubercle | An extra formation of enamel on the crown of a tooth
🗑
|
||||
| Tubercle Often manifests as a supernumerary cusp | such as the cusp of Carabelli.
🗑
|
||||
| Ridge | A linear elevation on the enamel surface.
🗑
|
||||
| Marginal ridge | A ridge on all teeth that
🗑
|
||||
| What marginal ridge form and where? | forms the mesial and distal margins
of posterior occlusal surfaces and anterior lingual surfaces
🗑
|
||||
| Labial ridge only | only on canines
🗑
|
||||
| Labial ridge prominent | prominent in maxillary canines
🗑
|
||||
| Buccal (cusp) ridge only | only on premolars
🗑
|
||||
| Buccal (cusp) ridge prominent | More prominent in first premolars
🗑
|
||||
| Cervical ridge | on all primary teeth and permanent molars
🗑
|
||||
| Cervical ridge where | in the cervical third of the buccal surface of the crown.
🗑
|
||||
| Oblique ridge | on all maxillary molars
🗑
|
||||
| oblique ridge extended | from the ML
to DB cusps (it separates the MB and DL cusps).
🗑
|
||||
| Triangular ridge | on all posterior teeth that extends from the cusp
tip to the central groove
🗑
|
||||
| who has two triangular ridge | The ML cusp of all maxillary molars has two triangular
🗑
|
||||
| Transverse ridge | on most posterior teeth
🗑
|
||||
| Transverse ridge most common | on maxillary premolars and mandibular molars.
🗑
|
||||
| Sulcus | A V-shaped depression on the occlusal surface of posterior teeth between ridges and cusps.
🗑
|
||||
| Fossa | An irregularly shaped depression in the enamel surface.
🗑
|
||||
| Developmental groove | A well-defined, shallow, linear depression in
enamel that separates the cusps, lobes, and marginal ridges of a tooth.
🗑
|
||||
| Fissure | A narrow crevice at the deepest portion of the developmental
groove in enamel
🗑
|
||||
| Pit | A small pinpoint concavity at the termination or junction of developmental
grooves.
🗑
|
||||
| Supplemental groove | short groove auxiliary to a
developmental groove that does not separate major tooth parts.
🗑
|
||||
| Caries are most likley to occur | in pits, fissure, groove.
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
Joseph.Shahin
Popular Dentistry sets