©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM
Dental Anatomy Final Exam review
Questions With Correct Answers
Describe the difference between the Incisal Ridge and Incisal Edge - answer✔Incisal edge: sharp
line that delineates facial from lingual forms
Incisal ridge: covers entire incisal surface. Has more surface area then incisal edge.
When does calcification begin? By what time have all primary teeth begun calcification -
answer✔13-16 weeks in utero calcification commences
18-20 weeks in utero: all primary teeth have initiated calcification
What is the order of the first evidence of Calcification in the Primary dentition? -
answer✔Central incisor → 1st Molar → Lateral incisor → Canine → 2nd Molar
Which Primary teeth are First to have a complete root? When? - answer✔Mx Central incisor
Md Central incisor
Md Lateral incisor
All at 1.5 years
Which Primary teeth are last to have a complete root? When? - answer✔Mx and Md canines
, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM
3.25 years of age
By what age does anterior tooth spacing stop? - answer✔6 years of age
Which Permanent tooth is the 1st to erupt into the oral cavity? What age? - answer✔Permanent
1st molars (Md precedes Mx slightly)
6 years of age
By age 6, which Permanent teeth have Crowns that are Completely calcified? - answer✔Central
and Lateral incisors
1st Premolars
1st Molars
(Md and Mx for all of these)
What is the Chronology of Calcification of the Permanent Mandibular teeth? - answer✔1st
Molar → Incisors → Canines → Premolars → 2nd Molar → 3rd Molar
What is the Chronology of Calcification of the Permanent Maxillary teeth? - answer✔1st Molar
→ Central incisor → Canine → Lateral incisor → Premolars → 2nd Molar → 3rd Molar
What is the Order of Eruption for the Permanent Mandibular teeth? - answer✔1st Molar →
Central incisor → Lateral incisor → Canine → 1st Premolar → 2nd Premolar → 2nd Molar →
3rd Molar
, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM
By 8 years of age, what is the state of the 2nd and 3rd Permanent Molars? - answer✔2nd molar
has not yet erupted
3rd molar has not yet begun calcification
What are the 4 classifications of Cusp Form? - answer✔Haplodont: single cone
Triconodont: 3 cusps in straight line
*Tritubercular Molar: 3 cusps in primary triangle*
Quadritubercular Molar: 4 cusps in rectangular or rhomboid form
From a Proximal aspect of the Mandibular teeth, which tooth has the greatest and which tooth
has the least Proximal Reference angle? give the specific angle measurement - answer✔Greatest
angle: Lateral incisor at 23º
Least angle: 2nd Premolar at 6º
From a Facial aspect of the Mandibular teeth, which tooth has the greatest and which tooth has
the least Facial Reference angle? give specific measurement - answer✔Greatest angle: 2nd
Molar at 14º
Least angle: Lateral incisor at 0º
What is the Facial reference angle of the Mandibular 2nd Premolar? - answer✔9º
12/3/2024 11:27AM
Dental Anatomy Final Exam review
Questions With Correct Answers
Describe the difference between the Incisal Ridge and Incisal Edge - answer✔Incisal edge: sharp
line that delineates facial from lingual forms
Incisal ridge: covers entire incisal surface. Has more surface area then incisal edge.
When does calcification begin? By what time have all primary teeth begun calcification -
answer✔13-16 weeks in utero calcification commences
18-20 weeks in utero: all primary teeth have initiated calcification
What is the order of the first evidence of Calcification in the Primary dentition? -
answer✔Central incisor → 1st Molar → Lateral incisor → Canine → 2nd Molar
Which Primary teeth are First to have a complete root? When? - answer✔Mx Central incisor
Md Central incisor
Md Lateral incisor
All at 1.5 years
Which Primary teeth are last to have a complete root? When? - answer✔Mx and Md canines
, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM
3.25 years of age
By what age does anterior tooth spacing stop? - answer✔6 years of age
Which Permanent tooth is the 1st to erupt into the oral cavity? What age? - answer✔Permanent
1st molars (Md precedes Mx slightly)
6 years of age
By age 6, which Permanent teeth have Crowns that are Completely calcified? - answer✔Central
and Lateral incisors
1st Premolars
1st Molars
(Md and Mx for all of these)
What is the Chronology of Calcification of the Permanent Mandibular teeth? - answer✔1st
Molar → Incisors → Canines → Premolars → 2nd Molar → 3rd Molar
What is the Chronology of Calcification of the Permanent Maxillary teeth? - answer✔1st Molar
→ Central incisor → Canine → Lateral incisor → Premolars → 2nd Molar → 3rd Molar
What is the Order of Eruption for the Permanent Mandibular teeth? - answer✔1st Molar →
Central incisor → Lateral incisor → Canine → 1st Premolar → 2nd Premolar → 2nd Molar →
3rd Molar
, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM
By 8 years of age, what is the state of the 2nd and 3rd Permanent Molars? - answer✔2nd molar
has not yet erupted
3rd molar has not yet begun calcification
What are the 4 classifications of Cusp Form? - answer✔Haplodont: single cone
Triconodont: 3 cusps in straight line
*Tritubercular Molar: 3 cusps in primary triangle*
Quadritubercular Molar: 4 cusps in rectangular or rhomboid form
From a Proximal aspect of the Mandibular teeth, which tooth has the greatest and which tooth
has the least Proximal Reference angle? give the specific angle measurement - answer✔Greatest
angle: Lateral incisor at 23º
Least angle: 2nd Premolar at 6º
From a Facial aspect of the Mandibular teeth, which tooth has the greatest and which tooth has
the least Facial Reference angle? give specific measurement - answer✔Greatest angle: 2nd
Molar at 14º
Least angle: Lateral incisor at 0º
What is the Facial reference angle of the Mandibular 2nd Premolar? - answer✔9º
