Dev. Dis. Of Hard Tissues 1

1 / 10

Wormian bones (extra small irregular skull bones) are typically found in:

Amelogenesis imperfecta

Cleidocranial Dysostosis

Crouzon Syndrome

Mandibulofacial Dysostosis

2 / 10

Developmental disturbances are best defined as:

Normal variations of growth

Temporary changes in morphology

Malformations or defects from disturbances of growth and development

Pathological conditions only caused by trauma

3 / 10

Which of the following is a congenital condition?

Runs in families due to shared lifestyle

Always of unknown cause

Acquired after birth due to trauma

Present at birth

4 / 10

A patient with the ability to approximate (bring together) their shoulders easily is likely suffering from:

Down Syndrome

Treacher Collins Syndrome

Cleidocranial Dysostosis

Crouzon Syndrome

5 / 10

Which of the following is TRUE about Crouzon Syndrome?

It is non-genetic and idiopathic

It involves craniosynostosis leading to abnormal skull shape

It is caused by mutation in CBFA1 gene

It is always associated with mental retardation

6 / 10

Which intraoral manifestation is commonly associated with Crouzon Syndrome?

Cleft palate and bifid uvula

Supernumerary teeth

Hypoplastic enamel

Early eruption of teeth

7 / 10

Supernumerary teeth and delayed eruption are typical features of:

Crouzon Syndrome

Hypohidrotic Ectodermal Dysplasia

Treacher Collins Syndrome

Cleidocranial Dysostosis

8 / 10

Which of the following is NOT a feature of Crouzon Syndrome?

Beaked nose

Absence of clavicles

Premature fusion of cranial sutures

Wide-set, bulging eyes

9 / 10

Cleidocranial Dysostosis is caused by mutation in which gene?

FGFR2

CBFA1

P53

RUNX2

10 / 10

Franceschetti syndrome is another name for:

Mandibulofacial Dysostosis

Cleidocranial Dysostosis

Ectodermal Dysplasia

Crouzon Syndrome

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