Questions and Answers (Most Recent
Version, Complete Study Material)
Anodontia - Correct Answers ✅congenital lack of all
primary or permanent teeth
Hypodontia - Correct Answers ✅lack of one or more teeth
in the primary or permanent dentition
Which dentition is most commonly affected by
anodontia/hypodontia? - Correct Answers ✅permanent
The maxillary and mandibular _________ molars and maxillary
__________ incisors are most often missing - Correct
Answers ✅third; lateral
Supernumerary teeth - Correct Answers ✅Development of
one or more extra teeth
Supernumerary teeth are _______ teeth found in the dental
arches - Correct Answers ✅extra
A supernumerary tooth are typically ______________ than
normal and typically do not erupt. - Correct Answers
✅smaller
,Dental and Oral Anatomy OSCE Exam
Questions and Answers (Most Recent
Version, Complete Study Material)
What is the most common supernumerary tooth? - Correct
Answers ✅mesiodens (occurs between maxillary and
central incisors)
What is the second most common supernumerary tooth? -
Correct Answers ✅- Maxillary FOURTH molar. (distomolar)
Microdontia - Correct Answers ✅abnormally small teeth
Regarding microdontia, the maxillary lateral incisor, called
_________________________ and the maxillary ______ molars are
the teeth often most affected - Correct Answers ✅peg
laterals; third
Macrodontia - Correct Answers ✅abnormally large teeth
If there is localized macrodontia that is only affecting one
side of the dental arch, it is often called
________________________ - Correct Answers ✅facial
hemihypertrophy
Fluorosis is caused by excessive ____________________ -
Correct Answers ✅fluoride
, Dental and Oral Anatomy OSCE Exam
Questions and Answers (Most Recent
Version, Complete Study Material)
Fluorosis appears as ________________ spots, _____________
opalescence, pitting, and mottling is possible - Correct
Answers ✅white/brown; milky
Tetracycline stain is caused by - Correct Answers
✅ingestion of the antibiotic tetracycline by the pregnant of
lactating mother.
With tetracycline staining, the teeth can be
_____________________________ and _____________________ under
ultraviolet light when young (will cease with age) the teeth
fluoresce. - Correct Answers ✅yellow/brown; fluorecse
With age, tetracycline staining color becomes yellowish
__________/____________ and the teeth no longer ______________
- Correct Answers ✅green/brown; fluoresce
If tetracycline stains are severe, what may occur? - Correct
Answers ✅banding
What can cause bluish-gray staining? - Correct Answers
✅Minocycline
pulp ________________ creates teeth that are dark - Correct
Answers ✅necrosis