Periodontology MCQ 1

Langerhan’s cells are absent in

Stippling is seen on

With aging changes in periodontal ligament are

Which is true of alveolar bone

The normal gingival color is

“Corn-Cob” appearance seen in

The function of Langerhan’s cells is

With the increase in age keratinisation of gingiva

Functions of periodontal ligament

The gingiva is attached to the tooth by:

The occurrence of keratinization on the human gingiva is

Central gram negative core supporting outer coccal cells is called:

Eulanin fibers are found in

The colour of gingiva is due to

Feature of aging pe riodontium is

Stippling of gingiva indicates all, EXCEPT:

The main component of keratins in the stratum corneum is

Breakdown of periodontal fibres in periodontitis is due to bacterial enzyme: (OR) Which of the following bacterial products have been implicated in initiation of inflammatory periodontal disease?

Normal depth of gingival Sulcus in adult does not exceed

Dentogingival unit comprises of

Unattached gingiva:

Lamina densa of the basal lamina beneath the epithelium is composed of

Of the following four bacterial species, which is LEAST LIKELY to be found in plaque?

Pellicle formation involves

Gingiva in children

Free gingival groove represents

The oxygen consumption of normal gingiva is:

The gingival fibre group which inserts in two adjacent teeth is the?

Predominant bacteria found in two days old plaque

Which of the following is the common factor for the initiation of both dental caries and periodontal disease

After the tooth emerges to the occlusal plane the clinical crown height increases by:

Stippling is absent in:

A black line on the gingiva which follows the contour of the margin is due to:

An isolated area in which root is denuded of bone is intact and covered only by periosteum and overlying gingiva is called

In deep older plaque

Severe alveolar bone loss, as observed in juvenile periodontitis is associated with:

Normal consistency of the gingiva is:

Junctional epithelium is attached to enamel by:

Basal Lamina consists of

The type of bone present in the inter-radicular area is

Actinobacillus actinomycetam comitans is

The inorganic component of plaque is primary

The “V” shaped space that encircles the tooth and present between tooth and gingiva is known as:

PDL is thinnest at:

Dendritic cells Located among keratinocytes at all suprabasal levels and belonging to reticuloen dothelial system derived from bone marrow are

One of the following group of fibers in the lamina propria of the gingiva, help to bind the free gingiva to the tooth

Actinobacillus actinomycetamcomitans is commonly associated with

Co-aggregation is mainly predominated by

The area, which is most prone to infection

What type of fibers are principal fibers of the PDL?

Elastin fiber system present in the lamina propria consists all of these EXCEPT

The periodontium does not include:

Supra gingival plaque causes

Which of the following is a periodontal pathogen

Least width of attached gingiva is found on the facial

Periodontal fibers which are most resistant to forces

Which of the following is Non-keratinocyte?

Bioactive glass (Perio glass) bone graft material is a type of:

The organism least Likely to be found in normal gingival crevices is

Increases in steroid hormones are associated with significant increases in

The length of junctional epithelium is:

The thixotropic theory claims that:

Cementum found on the cervical third of the root

Gingiva is attached to enamel by

The sticky polysaccharide present in dental plaque is

The carbohydrate not associated with dental plaque is:

Gingiva is attached by:

Alveolar bone is:

The cell that is present in stratum spinosum and stratum basale is:

The sulcular epithelium acts as a semi permeable membrane through which

Which of the following organisms is NOT implicated in the etiology of Periodontal disease

Specific plaque hypothesis was put forward by:

The periodontal ligament

The junctional epithelium is attached to the tooth by:

Anatomic form of roots of teeth is determined by

Periodontal ligament is thinnest at

Pick the correct statement. Collagen is

Bacteria, which are not found in normal healthy periodontium, are:

The common etiology of periodontitis is

Periodontal ligament is

Gingiva is supplied by

Gingival sulcus is V shaped and it barely permits the entrance of a

The inter radicular bone is:

Osteoblast covering the periodontal surface of the alveolar bone constitute a

Most important initiative factor for periodontitis is:

Stratification specific keratins present in gingival epithelium are

In periodontal Ligament there is:

Gingival Col is:

Which of the following are the predominant connective tissue cells of the periodontal ligament?

Biological width means

Keratin specific to epidermal type differentiation are

Dental plaque adheres to the tooth because:

Which periodontal fibres are consistent and are reconstructed even after the destruction of the alveolar bone?

Which type of cells are most numerous in gingiva

“Indifferent fibres” are

Collagen fibers are absent in:

Which of the following fibre groups are NOT attached to alveolar bone

In which of the following conditions is the role of microbial plaque most obscure: