Term
| General rule for Facial + Lingual contours of anterior teeth. What are the exceptions? |
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Definition
| Gingival 1/3, no exceptions |
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Term
| General rule for Facial contours of posterior teeth. What are the exceptions? |
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Definition
Facial contours in posterior teeth are located in the gingival ⅓
EXCEPT: Mandibular posterior facial contours tend to be in the occlusal third because of wear |
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Term
| General rule for lingual contours of posterior teeth. What are the exceptions? |
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Definition
Lingual heights of contour of all posterior teeth are in the middle ⅓ of of the crown.
EXCEPT: Mandibular 1rst premolar is offset from the middle ⅓ of the crown and mandibular 2nd premolar is in the occlusal ⅓ of the crown |
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Term
| General rule for the shape of interproximal contours. What are the exceptions? |
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Definition
They are all flat or slightly convex.
EXCEPT: the mesial surface of the maxillary 1rst premolar and the distal surface of the maxillary 1rst molar. They are both concave. |
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Term
| General rule for faciolingual interproximal contact of posterior teeth. What are the exceptions? |
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Definition
Posterior teeth contact one another in the middle 1/3 of the crown.
EXCEPT: Mesial surfaces of Maxillary and mandibular 1st molars which are located more facially |
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Term
| General rule for occlusocervical interproximal contact of anterior teeth. What are the exceptions? |
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Definition
| No general rule, All teeth vary. |
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Term
| Maxillary Central incisor - occlusocervical interproximal contacts |
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Definition
Mesial: Incisal
Distal: Junctional |
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Term
| Maxillary lateral Incisor - occlusocervical Interproximal contact |
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Definition
Mesial: Junctional
Distal: Middle |
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Term
| Maxillary canine - occlusocervical interproximal contact |
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Definition
Mesial: Junctional
Distal: middle |
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Term
| Mandibular central incisor - occlusocervical interproximal contact |
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Definition
Mesial: Incisal
Distal: Incisal |
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Term
| Mandibular lateral incisor - occlusocervical interproximal contact |
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Definition
Mesial: Incisal
Distal: Incisal |
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Term
| Mandibular canine: occlusocervical interproximal contact |
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Definition
Mesial: Incisal
Distal: Middle |
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Term
| Only posterior tooth with lingual contour in the occlusal third |
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Definition
| Mandibular second premolar |
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Term
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Definition
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Term
| General rule for faciolingual interproximal contacts of anterior teeth. What are the exceptions? |
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Definition
| Middle third of the crown, no exceptions |
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Term
| General rule for the occlusocervical interproximal contacts of posterior teeth. What are the exceptions? |
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Definition
| middle third, exceptions are the mesial contacts of both first molars (mandibular and maxillary). They are located at the occlusal-middle junction. |
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Term
| Mesial surface of Maxillary and Mandibular first molars - what is unique about this contact area? |
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Definition
| Interproximal contact is offset more facially and occlusally than the other posterior teeth |
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Term
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Definition
| Alternate term for CEJ. Curve of the cervical line becomes more pronounced in anterior teeth. |
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Term
| Cervical line - difference betweeen mesial and distal |
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Definition
| Generally, the mesial surface of a tooth has a greater cervical line curvature than the distal by about 1mm |
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Term
| Cervical line - difference between maxillary and mandibular teeth |
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Definition
| The cervical line curvature in a maxillary tooth is greater when compared to the equivalent tooth in the mandible |
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Term
| What is the general rule for the size of facial vs. lingual embrasures? What are the exceptions? |
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Definition
Lingual embrasures are larger than the equivalent facial embrasure.
2 Exceptions:
1. Maxillary first molars have larger facial embrasures.
2. Mandibular central incisors have faciolingual embrasures that are approximately the same size. |
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Term
| Mandibular first and second premolars - lingual heights of contour |
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Definition
1rst mandibular premolar - offset occlusally but still in the middle third
2nd mandibular premolar - IN the occlusal third |
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