Heights of Contour; Eruption/Calcifications Flashcards
Mand Cent HoC’s:
- Lingual =
- Facial =
- Mesial =
- Distal =
- Lingual = Cervical
- Facial = Cervical
- Mesial = Incisal
- Distal = Incisal
Max Cent HoC’s:
- Lingual =
- Facial =
- Mesial =
- Distal =
- Lingual = Cervical
- Facial = Cervical
- Mesial = Incisal
- Distal = Jxn of Middle & Incisal
Mand Lat HoC’s:
- Lingual =
- Facial =
- Mesial =
- Distal =
- Lingual = Cervical
- Facial = Cervical
- Mesial = Incisal
- Distal = Incisal
Max Lat HoC’s:
- Lingual =
- Facial =
- Mesial =
- Distal =
- Lingual = Cervical
- Facial = Cervical
- Mesial = Jxn of Middle & Incisal
- Distal = MIDDLE OF MIDDLE
Mand Canines HoC’s:
- Lingual =
- Facial =
- Mesial =
- Distal =
- Lingual = Cervical
- Facial = Cervical
- Mesial =Incisal
- Distal = Middle
Max 1st PM HoC’s:
- Lingual =
- Facial =
- Mesial =
- Distal =
- Lingual = Middle
- Facial = Cervical/Gingival
- Mesial = Middle
- Distal = Middle
Mand 1st PM HoC’s:
- Lingual =
- Facial =
- Mesial =
- Distal =
- Lingual = Middle
- Facial = Cervical/Gingival
- Mesial = Middle
- Distal = Middle
Max 2nd PM HoC’s:
- Lingual =
- Facial =
- Mesial =
- Distal =
- Lingual = Middle
- Facial = Cervical/Gingival
- Mesial = Middle
- Distal = Middle
Mand 2nd PM HoC’s:
- Lingual =
- Facial =
- Mesial =
- Distal =
- Lingual = OCCLUSAL
- Facial = Cervical/Gingival
- Mesial = Middle
- Distal = Middle
Max Canines HoC’s:
- Lingual =
- Facial =
- Mesial =
- Distal =
- Lingual = Cervical
- Facial = Cervical
- Mesial = Jxn of Middle & Incisal
- Distal = MIDDLE OF MIDDLE
Lingual HoC for Ant Teeth are in ____?
Cervical 3rd
Lingual HoC for Post Teeth are in ____? Who is the exception? Where is its HOC?
Middle ; Mand 2nd PM = Occlusal
Facial HoC for Post Teeth are in ____?
Cervical 3rd
Facial HoC for Ant Teeth are in ____?
Cervical 3rd
Mesial HoC for the Max Lat?
Jxn of Middle and Incisal
Distal HoC from the Max Cent?
Jxn of Middle & Incisal
Mesial HoC for the Max Canine
Jxn of Middle and Incisal
3 teeth with MIDDLE OF MIDDLE HOC and which side/view?
- Max Lat ; Distal = MoM
- Max Canine ; Distal MoM
- Max 1st Molar: Distal = MoM
Lingual HoC for the Mand 2nd PM?
OCCLUSAL
True/False:
General Rule = FACIAL HoC for post teeth are in the GINGIVAL 3rd AND LINGUAL HoC for post teeth are in the MIDDLE 3rd?
True
Lingual embrasures are LARGER than facial embrasures for all teeth…EXCEPT:
The distal AND mesial of max. 1st molars in which the buccal is Larger due to the basic shape of the tooth.
Max 1st Molar HoC’s:
- Lingual =
- Facial =
- Mesial =
- Distal =
- Lingual = Middle
- Facial = cervical
- Mesial = jxn of middle and occlusal 3rds
- Distal = MOM- middle of the middle
Mand 1st Molar HoC’s:
- Lingual =
- Facial =
- Mesial =
- Distal =
- Lingual = Middle
- Facial = Cervical (mid-cervical) 3rd
- Mesial = jxn of the middle and occlusal
- Distal = Middle
Max 2nd Molar HoC’s:
- Lingual =
- Facial =
- Mesial =
- Distal =
- Lingual = Cervical
- Facial = Middle
- Mesial = Middle
- Distal = Middle
Mand 2nd Molar HoC’s:
- Lingual =
- Facial =
- Mesial =
- Distal =
- Lingual = Middle
- Facial = Cervical ( buccal buldge)
- Mesial = Middle
- Distal = Middle
Largest occlusal embrasure in oral cavity occurs
B/w Max Canine – 1st pm (middle)
Largest incisal embrasure
M-J ; Max Lat – Max Canine
2nd largest embrasure
I-I ; Mand Lat – Mand Canine
3rd largest embrasure
J-J ; Max Cent - Max Lat
3rd SMALLEST embrasure
I-I ; Max Centrals
2nd Smallest embrasure
I-I ; Mand Cent – Mand Lat
SMALLEST embrasure
I-I Mand Centrals
Contain Oblique ridges
Maxillary Molars
Calcification: @birth
Eruption: 6 yrs
Perm Mandibular 1st Molar
Calcification: @ birth
Eruption: 6 yr
Perm Maxillary 1st Molar
Calcification: 3-4 mo
Eruption: 6-7yrs
Perm Mand Centrals
Calcification: 3-4 mo
Eruption: 7-8 yrs
Perm Max Centrals
Calcification: 3-4 mo
Eruption: 7-8yrs
Perm Mand Lateral
Calcification: up to 1 yr
Eruption: 8-9 yrs
Perm Max laterals
Calcification: 4-5 mo
Eruption: 9-10 yrs
Perm Mand Canine
Calcification: 1.5-1.75 yrs
Eruption: 10-12 yrs
Perm Max 1st PM
May erupt with 3 pulp horn
Max central
Triangularly shaped pulp morphology
Perm Max Central ; Decid Max Canine
Maxillary teeth wear facet is ___, whereas Mandibular is _____?
Lingual ; Facial
??? All teeth converge lingually except?
Perm Max 1st molar
Widest permanent tooth MD
Perm Max Central
3rd longest perm crown
Perm Max Canine
2nd longest permanent crown
Perm Max central
Most challenging to restore esthetically
Perm Max central
Calcification: 1.75-2
Eruption: 10-12 yrs
Perm Mand 1st PM
Calcification: 2-2.25 yrs
Eruption: 10-12 yrs
Perm Max 2nd PM
Calcification: 2.25-2.5 yrs
Eruption: 11-12 yrs
Perm Mand 2nd PM
Calcification: 4-5 mo
Eruption: 11-12 yrs
Perm Max Canine
Last Succedaneous tooth to erupt?
Perm Max Canine
Calcification: 2.5-3 yrs
Eruption: 11-13 yrs
Perm Mand 2nd Molar
Calcification: 2.5-3 yrs
Eruption: 12 yrs
Perm Max 2nd Molar
Teeth with Distal MOM HoC
Perm Max Lateral ;
Perm Max Canine
Perm Max 1st Molar
Hoc in the Occlusal 3rd lingually
Mand 2nd PM
Kindey shaped pulp morphology
Max 1st PM
Star fished shaped pulp morph with 5 pulp horns ; canal bifurcation (3) = 65%
Mand 1st Molar
Perm Teeth that develop from 5 lobes?
Deciduous?
Perm Max and Mand 1st Molars and Mand 2nd PM 3-cusp type ;
Deciduous 2nd Molars
Teeth with ovoid pulp morph and two small pulp horns that disappear with age?
Mand Centrals- 1 canal 70% ; 2 = 30%
(mesial depression)
and Laterals - 1 canal 57% ; 2 = 43%
(if bifurc - FL vs pulp horns which are MD)
Teeth that touch only ONE other tooth in the mouth
Mand Centrals (only tooth with HoC at same lvl) and
!!
4 types of CEJ
Type 1. Enamel meets Cementum (gumline) perfectly
Type 2. Cementum covers enamel –> sensitivity– enamel is a-cellular ; cementum has nerve endings
Type 3. Enamel covers cementum
Type 4. No overlap ; space b/w cementum and enamel exposed root strx
Contours of all permanent teeth are generally either flat or slightly convex
EXCEPT
The mesial surface of the Max 1st PM , which possesses a concavity
and distal surface of the Max 1st Molar, which also possesses a notable concavity.
Incisal Facial Embrasure from Largest to smallest?
L–> S
- Max Can - Max 1 PM
- Max lat - Max Can (M-J)
- Mand lat - can (I-I)
- Max Cent- Lat (J-J)
- Mand Cent - Lat (I-I)
- Max Cent - Cent (I-I)
- Mand Cent - Cent (I-I)
Pre-molars from in the _____ of baby molars?
Furcation
Ranking of Crown lengths:
1st longest = Mand Canine
2nd longest = Max Cent
3rd longest crown = Max canine ( Longest tooth)
Strongest most dvlp facial lobe/ridge
Max Canine
Fissured grooves:
Max Lat ( palatoradicular)
Max 1st Molar (Lingual)
DOG
Deeper Distal (vs Mesial) root depression
Perm Max Canine
Largest PM in mouth
Max 1st PM
Mesial Marginal Developmental Ridge is specific to which tooth
Max 1st PM
Most commonly missing Teeth listed acc to decreasing frequency:
3rd molars
Max Lat
Mand 2PM
Mesial Marginal Developmental Ridge is specific to which tooth
Max 1st PM - extends from central groove
Distal contact on max 1pm occurs a little
buccal
Only tooth with a mesiolingual developmental groove that develops from the central pit?
Mand 1st PM
Only tooth with a mesiolingual developmental groove that develops from a pit?
Mand 1st PM
From the occlusal view, the mand 1st pm is what shape?
Diamond shaped
Tooth with insignificant lingual pulp horn that will likely bifurcate ( ovoid pulp shape)
Mand 1st PM
Mand 2nd PM 3 cusped type shape:
Mand 2nd PM 2 cusped type shape:
3 cusped = square
2 cusped = round
In which tooth does the Mesial, Distal, and Lingual grooves form a Y shape ; H- Shape?
y = mand 2nd PM 3 cusped type h= mand 2nd PM
Calcification: 2.5 yrs
Eruption: 12 yrs
Perm Max 2nd Molar
Tooth with a fluted pulp morphology ; also least likely to have two canals or tow roots (of this type)
Mand 2nd PM
4-5 mo calcifying teeth
Canines
From a proximal view the perm MAND incisors have their incisal edge :
Lingual to their apex
From a proximal view the perm MAX canine have a cusp tip :
Facial to the long axis of the tooth
Mandibular Post teeth have a ___ shape from the facial and Lingual but have a ___ shape from the proximal?
Trapezoidal ( FL)
Rhombidal (MD)
which PM has a non-functioning lingual cusp?
Mand 1st PM