All the questions have been directly picked from Carranza 11th edition
1. The basis for classification system of periodontal disease as of today is
a.
The clinical features of disease
b.
The concept of classical pathology
c.
Infectious etiology of diseases
d.
All
Ans: C
Dominant paradigm in history of classification system
·
1870 to 1920: The clinical features of disease
o
Classified entirely on the basis of clinical
characteristics
o
Little knowledge about etiology and pathology
·
1920 to 1970: The concept of classical pathology
o This
concept was introduced by Gottlieb and Orban which includes
§ Inflammatory
§ Non
inflammatory
§ Degenerative
§ Distrophic
·
1970 to present: Infectious etiology of diseases
2.
According to, G.V. Black’s classification
of periodontal diseases, 1886, scurvy is classified under,
a.
Constitutional gingivitis
b.
A painful form of gingivitis
c.
Simple gingivitis
d.
Calcic inflammation of the peridental membrane
Ans: A
In 1886, G.V. Black classified periodontal diseases based on
their clinical characteristics into
five separate groups:
·
Constitutional gingivitis: including
mercurial gingivitis, potassium iodide gingivitis and scurvy.
· A painful form of gingivitis: now termed
necrotizing ulcerative gingivitis (NUG),
·
Simple gingivitis: This was associated with the accumulation of debris that
eventually led to ‘calcic inflammation of the peridental membrane.’
·
Calcic inflammation of the peridental
membrane: This was associated with ‘salivary’ and/or ‘serumal’ calculus.
Now known as chronic periodontitis.
· Phagedenic pericementitis (phagedenic =
spreading ulcer or necrosis): This condition shared many features with
‘calcic inflammation of the peridental membrane’ but there was an irregular
pattern of destruction and not much dental calculus.
3. According to the New Classification Scheme for
Periodontal Diseases and Conditions (2017), Less than 2 mm bone loss or CAL
over five years, half pack or less per day smoking, HbA1c less than 7 percent,
biofilm commensurate with destruction indicates
a.
No progression
b.
Mild progression
c.
Moderate
progression
d.
Rapid progression
Ans: C
4. The new classification by World Workshop (2017)
differs from the existing 1999 classification of periodontal diseases and
condition by the addition of all of the following except,
a.
Staging of periodontal disease
b.
Grading of Periodontal disease
c.
Classification of peri-implant pathologies
d.
Periodontitis
was reclassified as chronic, aggressive (localized and generalized),
necrotizing and as a manifestation of systemic disease.
Ans: D
It is the feature of 1999 classification.
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