Quiz 1 Flashcards
What defines the clinical crown?
What is VISIBLE in the Pt mouth
What is the commonly used term for the CEJ/cementoenamel junction?
“Cervical Line”
What are the raised/convex contours on the lingual surface of POSTERIOR teeth called? (They are not ridges)
Lingual Heights of Contour
What are the unique/irregular depressions/concavities unique to the lingual surfaces of canines?
The 2 fossAE…MesioLingual and DistoLingual fossae!
Where are the lingual heights of contour NOT located on a posterior tooth?
The cervical third
What is a line on the surface of a posterior tooth that does NOT divide primary portions of a tooth (cusps)?
A supplemental groove!
Are supplemental grooves named?
Nope, they are not regular enough
What might a supplemental groove separate on the same cusp?
Triangle Ridges from Cuspal Ridges
IF a supplemental groove IS named, how might it be named?
By its location!
What is the FIRST PRIMARY tooth to erupt? When does it do so?
Man Cent Incisor…8mo
What is the LAST PRIMARY tooth to erupt? When does it do so?
Max 2nd Molar…29mo
What are the only primary teeth not in the oral cavity yet at 20 mo?
primary Man and Max 2nd molars
Which period begins with the emergence and eruption of the Permanent Mandibular 1st molar at age 6?
The Transitional “mixed” dentition period
What does the “mixed dentition period” end with the loss of the last _____ tooth, which is USUALLY the ______ ______ _______ at age ___-____.
Primary….Maxillary Second Molar..11-12
Note the permanent _____ _____ are guided by and emerge distal or posterior to the primary _____ _____.
Permanent 1st molars…..Primary 2nd Molars
The permanent teeth do not begin their eruptive movements until when?
Until after the CROWN has formed
What can premature loss of primary teeth lead to?
Lack of Space in the Permanent dentition
Dental neglect, congenital absence, or anomalies will have adverse effect on what of th the permanent dentition?
Eruption!
Which is the first maxillary permanent tooth to erupt?
The max first molar
What is unique about the eruption sequence of the permanent max canine?
Its a LAGGER! Maxilla: 1st Molar—–>centrals–>laterals—>premolars—>CANINES
At what age is the Pt out of the “early ugly duckling” stage when the dentition appears normal to Parents?
8 years of age
Which one applies to Human dentition? Isog-Nath-ous, An-isog-nath-ous, or partially isog-nath-ous?
Partially Isog-nath-ous
What is the structure exhibited only on permanent Maxillary molars and is CONFLUENT with the MESIAL MARGINAL RIDGE, obliterating much of the MESIAL TRIANGULAR FOSSA?
The Anterior Transverse Ridge
What are the three main points about the DOMINATION of the maxillary arch over the mandibular arch?
1.It is larger 2.Its is wider 3.Esthetics
Which MANDIBULAR tooth has the SMALLEST PROXIMAL reference angle? What is the angle?
Man Second Premolar…6 degrees
Which MANDIBULAR tooth has the SMALLEST FACIAL reference angle? What is the angle?
Man lateral incisor…0 degrees
What are the WHACKY two teeth that only have ONE antagonist in the opposing arch?
Max 3rd molars and Man Central Incisors
What is the location of the proximal contacts for the Maxillary teeth?::1.Midline:____ ; 2.Distal of Central: ____; 3.Mesial of Lateral: _____; 4.Distal of Lateral_____; 5.Mesial of Canine:_____; 6.Distal of Canine _____
”—-I.J—-.J.-M.—-J.-M—“1.Midline: __Incisal__ ; 2.Distal of Central: Jxn incisal/mid; 3.Mesial of Lateral: __Jxn Inc/Mid___; 4.Distal of Lateral___Middle third__; 5.Mesial of Canine:__Jxn inc/mid___; 6.Distal of Canine ___Mid__
WHAT IS THE HEIGHT OF CONTOUR on ALL MANDIBULAR facial surfaces? (in mm’s & area)
0.5mm in the Cervical Third
What is the progression in mm of the Lingual Heights of contour as we go from anterior to posterior? (in mm’s and area)
0.5mm/Cervical 1/3 in the anteriors—>0.5mm Middle 1/3 in 1st premolars—>0.75mm in middle 1/3 2nd premolars—>1mm in middle 1/3 in molars
Concerning the height of curvature on the cervical line of the maxillary arch: it curves in a ______ direction on the ______ surface.
coronal….proximal
Concerning the height of curvature on the cervical line of the maxillary arch: the measurement is from the lowest point at the ______ line to the highest point in the middle of the ______ surface.
cervical…..proxmial
Concerning the height of curvature on the cervical line of the maxillary arch: Which teeth have the MOST measurable curvature? Which have little to NO curvature?
The anterior teeth have MOST!! Molars have NONE!
Concerning the height of curvature on the cervical line of the maxillary arch: Which side of the tooth is the Curvature ALWAYS the GREATEST? Which tooth has the greatest? In mm?
Mesial…Max Central..3.5mm (Distal 2.5mm)
What are the ONLY PDLs NOT affected by periodontitis?
Apical and Interradicular (Circumfrential, alveolar crest, transseptal, horizontal, and oblique all are)
What are the Negative anatomical features on the Max Central facial aspect? What do they run parallel to?
Imbrication Lines run parallel to the cervical line
What are the Positive anatomical features on the Facial Max Centrals?
PeriKyMata
Concerning the Generalizations for Mandibular Tooth Form: Contact areas are slightly more to the ______.
Facial
Concerning the Generalizations for Mandibular Tooth Form: Mesial outlines are _____ curved then distal outlines.
Less Curved
Concerning the Generalizations for Mandibular Tooth Form: ______ Cusps are more pointed then the Facial Cusps.
Lingual
Concerning the Generalizations for Mandibular Tooth Form:: Mesial Cusps are larger then ______ cusps.
Distal
Concerning the Generalizations for Mandibular Tooth Form: Mesial Marginal Ridges are ______ then distal marginal ridges.
Taller
