1021. The chemical disintegration of enamel is referred to as:
A. Abrasion
B. Attrition
C. Erosion *
D. Hypoplasia
E. Pitting
1022. Mottled enamel is produced by:
A. Syphilis
B. Febrile diseases
C. Fluorine *
D. Acids
E. Tuberculosis
1023. The structures of enamel that are more resistant to the actions of acids are:
A Enamel cuticles *
B. Enamel lamellae
C. Enamel rods
D. Interprismatic substance of enamel
E. Ameloblast
1024. The most common route by which infection may reach the pulp is through:
A. The blood stream
B. Traumatic injuries
C. Dental caries *
D. Erosion
E. Periosteum
1025. The cells responsible for root resorption are:
A. Fibroblasts
B. Cementoblasts
C. Oesteoblasts
D. Osteoclasts *
E. Odontoblast
1026. Dry socket is a form of:
A.Osteomyelitis
B. Osteitis
C. Osteoma
D. Periostitis *
E. Granuloma
1027. Inflammation of the lips is referred to as:
A. Stomataitis
B. Glossitis migrican
C. Cheilitis *
D. Vincent Angina
E. Sialadenitis
1028. Dens in dente occurs most commonly in the:
A. Maxillary canines
B. Mandibular premolars
C. Mandibular second molars
D. Maxillary lateral incisors *
E. All incisors
1029. Paralysis of the tongue is referred to as:
A. Ankyloglossia
B. Glossoplegia *
C. Macroglossia
D. Pyroglossia
E. Geographic tongue
1030. An abnormal disease in the flow of saliva is called:
A: Ptyalism
B: Trismus
C: Xerostomia *
D: Salivation
E: Sialadenitis