NBDE Dental Anatomy Misc Questions
and Answers
What is it called when a tooth is fused to the alveolar bone?
What has the tooth lost in order for this to happen? - correct
answers✅✅Ankylosis
PDL
How is Ankylosis Initiated? - correct answers✅✅Infection or
trauma to the PDL
The excessive formation of cementum around the root of a tooth
after the tooth has erupted. - correct
answers✅✅Hypercementosis
How is hypercementosis initiated? - correct
answers✅✅Trauma, metabolic dysfunction, or periapical
inflammation
The fusion or growing together of two adjacent teeth at the root
through the cementum only. - correct
answers✅✅Concrescence
Supernumary tooth between the maxillary centrals - correct
answers✅✅Mesiodens
How does the max. arch generally compare with the mand. arch?
- correct answers✅✅It is slightly longer
, NBDE Dental Anatomy Misc Questions
and Answers
The sum of the M-D diameter of the maxillary teeth is about _____.
- correct answers✅✅128 mm
The sum of the M-D diameter of the mandibular teeth is about
_____. - correct answers✅✅126 mm
In general the primary arch is more _____ than the permanent
arch. - correct answers✅✅Circular
The abnormal or pathologic wearing away of tooth structure by
mechanical means. - correct answers✅✅Attrition
Caused by the use of a hard toothbrush and/or a horizontal
brushing stroke and/or a gritty dentrifice. - correct
answers✅✅Toothbrush Abrasion
What features most often occurs from toothbrush abrasion? -
correct answers✅✅V-shaped wedges at the cervical margin in
the canines and pre-molars
What is caused by chewing or biting hard foods or objects or
chewing tobacco? - correct answers✅✅Occlusal Abrasion
What features does occlusal abrasion result in? - correct
answers✅✅Flattened cusps on all posterior teeth and worn
incisal edges.
and Answers
What is it called when a tooth is fused to the alveolar bone?
What has the tooth lost in order for this to happen? - correct
answers✅✅Ankylosis
PDL
How is Ankylosis Initiated? - correct answers✅✅Infection or
trauma to the PDL
The excessive formation of cementum around the root of a tooth
after the tooth has erupted. - correct
answers✅✅Hypercementosis
How is hypercementosis initiated? - correct
answers✅✅Trauma, metabolic dysfunction, or periapical
inflammation
The fusion or growing together of two adjacent teeth at the root
through the cementum only. - correct
answers✅✅Concrescence
Supernumary tooth between the maxillary centrals - correct
answers✅✅Mesiodens
How does the max. arch generally compare with the mand. arch?
- correct answers✅✅It is slightly longer
, NBDE Dental Anatomy Misc Questions
and Answers
The sum of the M-D diameter of the maxillary teeth is about _____.
- correct answers✅✅128 mm
The sum of the M-D diameter of the mandibular teeth is about
_____. - correct answers✅✅126 mm
In general the primary arch is more _____ than the permanent
arch. - correct answers✅✅Circular
The abnormal or pathologic wearing away of tooth structure by
mechanical means. - correct answers✅✅Attrition
Caused by the use of a hard toothbrush and/or a horizontal
brushing stroke and/or a gritty dentrifice. - correct
answers✅✅Toothbrush Abrasion
What features most often occurs from toothbrush abrasion? -
correct answers✅✅V-shaped wedges at the cervical margin in
the canines and pre-molars
What is caused by chewing or biting hard foods or objects or
chewing tobacco? - correct answers✅✅Occlusal Abrasion
What features does occlusal abrasion result in? - correct
answers✅✅Flattened cusps on all posterior teeth and worn
incisal edges.
