NBDHE Pathology Exam Questions
and Answers 100% Pass
Attrition - ANSWER-Bruxism, form of this, excessive grinding. Wearing of teeth
from tooth to tooth contacts, malocclusion, grinding and mastication.
Abrasion - ANSWER-Teeth wear from use of abrasive substances, EX: Chewing
foreign objects. Excessive oral hygiene habits handed brushing.
Abfraction - ANSWER-Angular notch at the gumline caused by bending forces
applied to the tooth.
For of non-carious tooth tissue loss that occurs along the gingival margin.
Erosion - ANSWER-Loss of tooth structure from a chemical process
Affects many or all teeth in an arch; shiny, glossy look.
Common causes: Chronic vomiting seen bulimia, acidic foods, GERD (Gastro-
esophageal reflux disease)
BOARD ALERT: Bulimia patients often present with this!!
Massester Muscler - ANSWER-What muscle will become more prominent if a
patient engages in bruxism?
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,Supernumerary Teeth- Hyperdontia - ANSWER-Excess number of teeth
Mesiodens - ANSWER-Between #8 and #9 (Maxillary midline) this is where it's
most common.
Next it can happen in the maxillary molar area (Fourth molars, distomolar) 2nd
most common.
Anodontia - ANSWER-Complete absence of teeth
Ectodermal Dysplasia - ANSWER-Abnormal development of teeth
Hypodontia - ANSWER-Partial anodontia- one or several teeth are missing-
common with conical shaped teeth.
Less than normal teeth
Oligodontia - ANSWER-Congenitally missing 6 teeth or more (3rd molars are
common)
-Occurs during development
Microdontia - ANSWER-Small teeth. "Peg Lateral"- Maxillary lateral incisor-most
common
Macrodontia - ANSWER-Large teeth-rare
Taurodontism - ANSWER-"Bull Tooth". Rare development disturbances of a
tooth-isolated normally. Body is enlarged at the expense of the roots.
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, -Enlarged pulp chamber, apical displacement of the pulpal floor, lack of
constriction at the CEJ.
More common in Down Syndrome clients.
Amelogenesis Imperfecta - ANSWER-Hereditary disorder of enamel formation.
-Clinically see enamel hypoplasia, pits, grooves, soft enamel, teeth can darken or be
discolored. Dentin and Pulp appear normal.
Dentinogenesis Imperfecta - ANSWER--Inherited dentin disorder
-Teeth are discolored-opalescent dentin
-Poor dentin formation compromised normal enamel
-Radiographically-abnormal pulp and crown
Diastema - ANSWER--Space between two adjacent teeth
-Hereditary Trait
-Some factors that may contribute-frenum attachment and muscle pull.
Internal resorption - ANSWER--Etiology-Possible pulp injury, sometimes
unknown.
-Pulp may show through enamel-tooth may appear PINK
-Enlarged pulpal chamber
-Possible endodontic therapy
COPYRIGHT 2025 ALL RIGHTS RESERVED, TRUSTED AND VERIFIED 3
and Answers 100% Pass
Attrition - ANSWER-Bruxism, form of this, excessive grinding. Wearing of teeth
from tooth to tooth contacts, malocclusion, grinding and mastication.
Abrasion - ANSWER-Teeth wear from use of abrasive substances, EX: Chewing
foreign objects. Excessive oral hygiene habits handed brushing.
Abfraction - ANSWER-Angular notch at the gumline caused by bending forces
applied to the tooth.
For of non-carious tooth tissue loss that occurs along the gingival margin.
Erosion - ANSWER-Loss of tooth structure from a chemical process
Affects many or all teeth in an arch; shiny, glossy look.
Common causes: Chronic vomiting seen bulimia, acidic foods, GERD (Gastro-
esophageal reflux disease)
BOARD ALERT: Bulimia patients often present with this!!
Massester Muscler - ANSWER-What muscle will become more prominent if a
patient engages in bruxism?
COPYRIGHT 2025 ALL RIGHTS RESERVED, TRUSTED AND VERIFIED 1
,Supernumerary Teeth- Hyperdontia - ANSWER-Excess number of teeth
Mesiodens - ANSWER-Between #8 and #9 (Maxillary midline) this is where it's
most common.
Next it can happen in the maxillary molar area (Fourth molars, distomolar) 2nd
most common.
Anodontia - ANSWER-Complete absence of teeth
Ectodermal Dysplasia - ANSWER-Abnormal development of teeth
Hypodontia - ANSWER-Partial anodontia- one or several teeth are missing-
common with conical shaped teeth.
Less than normal teeth
Oligodontia - ANSWER-Congenitally missing 6 teeth or more (3rd molars are
common)
-Occurs during development
Microdontia - ANSWER-Small teeth. "Peg Lateral"- Maxillary lateral incisor-most
common
Macrodontia - ANSWER-Large teeth-rare
Taurodontism - ANSWER-"Bull Tooth". Rare development disturbances of a
tooth-isolated normally. Body is enlarged at the expense of the roots.
COPYRIGHT 2025 ALL RIGHTS RESERVED, TRUSTED AND VERIFIED 2
, -Enlarged pulp chamber, apical displacement of the pulpal floor, lack of
constriction at the CEJ.
More common in Down Syndrome clients.
Amelogenesis Imperfecta - ANSWER-Hereditary disorder of enamel formation.
-Clinically see enamel hypoplasia, pits, grooves, soft enamel, teeth can darken or be
discolored. Dentin and Pulp appear normal.
Dentinogenesis Imperfecta - ANSWER--Inherited dentin disorder
-Teeth are discolored-opalescent dentin
-Poor dentin formation compromised normal enamel
-Radiographically-abnormal pulp and crown
Diastema - ANSWER--Space between two adjacent teeth
-Hereditary Trait
-Some factors that may contribute-frenum attachment and muscle pull.
Internal resorption - ANSWER--Etiology-Possible pulp injury, sometimes
unknown.
-Pulp may show through enamel-tooth may appear PINK
-Enlarged pulpal chamber
-Possible endodontic therapy
COPYRIGHT 2025 ALL RIGHTS RESERVED, TRUSTED AND VERIFIED 3
