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WorksheetsTutor oral biology
Total questions: 24
Worksheet time: 9mins
What is the largest portion in ductal system
Parotid
Submandibular
Sublingual
What is the Characteristic of parotid glands?
Mixed 60%
Mucous 5%
Serous 25%
Serous 60%
What are the Features of serous acini?
Watery consistency and rich with protein
Watery consistency and rich with carbohydrates
Viscous consistency and rich with protein
Viscous consistency and rich with carbohydrates
The predominant micro-organism in the first 24 hours of plaque formation are :
Vibrious
Filaments
Rods and Cocci
Cocci and filament
Non Oral manifestations in insulin deficiency
pulpal calcification
xerostomia
periodontal problem
dental caries
Tooth shedding is predominantly the
Physiologic loss of impacted teeth
Pathologic loss of non-vital primary teeth
Physiologic loss of permanent teeth
Physiologic loss of primary teeth
A patient presented with a full permanent dentition, except for the third molars. On the right side of the dental arch, the mesiobuccal cusp of the upper first molar occludes into the embrasure between the lower first molar and second premolar. Classify the molar relationship.
Class I
Class II
Class II division I
Class III
Unclassified
A patient presented with 8mm overjet and 10% overbite. He also has a convex profile. Which of the following statements describe this patient?
Class I malocclusion on a Class I skeletal pattern
Class I malocclusion on a Class II skeletal pattern
Class II malocclusion on a Class I skeletal pattern
Class II malocclusion on a Class II skeletal pattern
Class II malocclusion on a Class III skeletal pattern
During remineralisation, there will be an increase in:
acidic environment in the mouth.
calcium ion withdraw from the dental enamel.
phosphate ion withdraw from the dental enamel.
absorption of calcium ion into the dental enamel.
absorption of hydrogen ion into the dental enamel.
Choose the correct statement about dental follicle theory
I. Giving rise to periodontal ligament
II. Playing important role in development of root
III. Acting as a course of odontoblasts
IV. Providing a pathway for osteoclasts which is required for bone remodelling
I and II only
II and III only
I, II and III
I, II and IV
Hormone changes that will cause periodontal problem in menopause patients
Leptin
Androgen
Estrogen
Progesteron
Mechanism of tooth shedding due to force mastication is all true EXCEPT
Force of mastication increases
Periodontal ligament able to withstand the forces
Resorption is inhibited
Periodontal ligament experience trauma and experience shedding
Which of the following is Not the phase of physiological tooth movement?
Post-eruptive movement
Eruptive movement
Pre-eruptive movement
Para Eruptive movement
The periodontal ligament
Derives its blood primarily from the branches of vessels entering the pulp
Has a slow rate of turn over
Contains epithelial cells
Comprises primarily of type II collagen
which of the following bones immediately surrounding to roots and giving support for insertion
of periodontal fibers is most likely called
woven bone
spongy bone
supporting bone
alveolar bone proper
“Local increase in tissue fluid pressure in the periapical region of the tooth cause the occlusal movement of the theory”
Which theories of eruption suits the statement above
Root formation theory
Pulp growth
Vascular pressure
Dental follicle theory
Which of the following is the type of bone presents in the furcation (interradicular area)?
cortical
Exophytic
Osteophytic
Cancellous
Which of the following occurs during the early stage of eruption of the tooth
Maturation of enamel
Formation of dental sac
Differentiation of the stratum intermedium
Formation of stellate reticulum
Which of the following is not the principal fiber group of the periodontal ligament
Horizontal
Oblique
Alveolar crest
Trans septal
Which of the following cells are the predominant connective tissue cells of the periodontal ligament?
Cementoblasts
Fibroblasts
Osteoblasts
Cell rest of Malassez
How much force generated during the routine mastication of food?
20N to 50N
50N to 100N
70 to 150N
150N to 200N
The space of incisal edge of the teeth during opening phase is
12 to 14mm apart
16 to 18mm apart
18 to 20mm apart
16 to 20mm apart
There are the early colonizers at our tooth surface, except
S.oralis
P.intermedia
S.sangius
gingivalis
What are the highest bacteria population at dorsum of tongue?
S.oralis
S.sangius
S.mutans
Actinomyces spp.
