A union of the roots of adjacent teeth through the cementum is referred to as :
A. Concrescence
B. Fusion
C. Gemination
D. None of the above
# The
... [Show More] term dilaceration refers to :
A. A deformity of a tooth consisting of a sharp bend in the root
B. Abrasions on two surfaces of a single tooth
C. A root or tooth that is split into two
D. A tooth that is fractured at two or more places
# Peg-shaped incisors which taper towards the incisal edge are typically seen in all of the following conditions except :
A. Congenital syphilis
B. Rickets
C. Anhidrotic ectodermal dysplasia
D. Supernumerary teeth
# In Erythema migrans , which papilla of the tongue are absent ?
A. Fungiform
B. Foliate
C. Filiform
D. Circumvallate
# Globulomaxillary cyst is :
A. Soft tissue cyst present often between maxillary lateral incisor and cuspid teeth
B. Often present between incisor and cuspid teeth but is a bone cyst
C. A cyst present between the midline of the palate
D. A cyst present in the incisive canal
# Which of the following features are of naso-alveolar cyst ?
A. An ovoid shaped radiolucency above the lateral incisor and canine teeth
B. Erosion of base above lateral incisor and canine teeth
C. An inverted funnel shaped radiolucent lesion above the roots of lateral incisor and canine teeth
D. A pear shaped radiolucent lesion between roots of lateral incisor and canine teeth
# Facial edema , cheilitis granulomatosa and fissured tongue characterize which of the following syndromes ?
A. Frey's Syndrome
B. Melkerson-Rosenthal syndrome
C. Treacher Collins syndrome
D. Down's Syndrome
# Which of the following is a soft tissue cyst which do not produce any radiographic changes ?
A. Nasolabial cyst
B. Nasopalatine cyst
C. Mid alveolar cyst
D. Palatine cyst
# The syndrome which consists of cleft palate, micrognathia and glossoptosis is known as :
A. Marfan's syndrome
B. Crouzon's syndrome
C. Paget's disease
D. Pierre Robin syndrome
# Developing ameloblasts are affected by the ingestion of high fluoride content water resulting in :
A. Turners tooth
B. Hutchinson's tooth
C. Mottled enamel
D. Moon's molars
# Teeth that erupt within 30 days of birth are called :
A. Natal teeth
B. Neonatal teeth
C. Primary teeth
D. Prenatal teeth
# A permanent tooth with local hypoplastic deformity in crown is called :
A. Turner's tooth
B. Taurodontism
C. Enameloma
D. Ghost teeth [Show Less]