ASSISTANT PROFESSOR IN PERIODONTICS – NCA – CAT NO 149/2018 – KERALA MEDICAL SERVICE

PROVISIONAL ANSWER KEY
Question Paper Code: 47/2019/OL
Category Code: 149/2018
Exam: Assistant Professor in Periodontics NCA
Medium of Question: English
Date of Test 03-10-2019
Department Kerala Medical Education Service
Alphacode A
Question1:-The ‘stress shielding’ phenomenon is
A:-lack of load on implant
B:-over load on implant
C:-stability of implant
D:-bone resorption
Correct Answer:- Option-A
Question2:-Collagen fibres around an implant is
A:-parallel and unattached
B:-oblique and unattached
C:-parallel and attached
D:-oblique and attached
Correct Answer:- Option-A
Question3:-Reliable indicator for identifying implant stability is
A:-periotest
B:-RFA
C:-periotron
D:-mobilometer
Correct Answer:- Option-B
Question4:-Minimum mesiodistal space required for a standard diameter implant is
A:-6mm
B:-7mm
C:-8mm
D:-9mm
Correct Answer:- Option-B
Question5:-According to Misch the posterior maxilla is of
A:-D1 and D2
B:-D2 and D3
C:-D3 and D4
D:-D2 and D4
Correct Answer:- Option-C
Question6:-Class A recall patients should be maintained by
A:-Specialist
B:-General dentist
C:-Alternatively by Specialist and dentist
D:-dentist and specialist together
Correct Answer:- Option-B
Question7:-Which of the following is considered as the gold standard of evidence
A:-Case control studies
B:-Cohort studies
C:-Randomised control trials
D:-systematic reviews and meta analysis
Correct Answer:- Option-D
Question8:-Required factor VIII levels for treatment in hemophilia patients is
A:-15-25%
B:-25-50%
C:-50-75%
D:-75-100%
Correct Answer:- Option-B
Question9:-FAST sign for cardiovascular accident include all except
A:-face
B:-arm
C:-speech
D:-tongue
Correct Answer:- Option-D
Question10:-PICO includes all except
A:-population
B:-intervention
C:-comparison
D:-organization
Correct Answer:- Option-D
Question11:-Which of the following suture alleviates the wicking effect
A:-plain gut
B:-braided silk
C:-polyster braided
D:-poly glycolic braided
Correct Answer:- Option-A
Question12:-What anatomic structure is the medial wall of maxillary sinus
A:-alveolar process
B:-lateral wall of maxilla
C:-lateral wall of nasal cavity
D:-floor of orbit
Correct Answer:- Option-C
Question13:-Periocol contains
A:-tetracycline
B:-metronidazole
C:-chlorhexidine
D:-azithromycin
Correct Answer:- Option-C
Question14:-Piggy back fulcrum is a type of
A:-intra oral finger rest
B:-extraoral finger rest
C:-pen grasp
D:-modified pen grasp
Correct Answer:- Option-A
Question15:-Evalusite is
A:-automated probing system
B:-chair side DNA probe
C:-Chair side membrane immune assay
D:-GCF measuring system
Correct Answer:- Option-C
Question16:-Anatomic crown in relation to thick gingival biotype is
A:-triangular
B:-oval
C:-square
D:-elliptical
Correct Answer:- Option-C
Question17:-Chair side kit for BANA test is
A:-perioscan
B:-perioscope
C:-periocheck
D:-periogard
Correct Answer:- Option-A
Question18:-The ultimate goal of periodontal therapy is achievement of
A:-reattachment
B:-repair
C:-new attachment
D:-epithelial adaptation
Correct Answer:- Option-C
Question19:-Father of oral hygiene
A:-Pierre fouchard
B:-Levi spear parmly
C:-G V Black
D:-Leuwan hook
Correct Answer:- Option-B
Question20:-Enamel Matrix protein is
A:-Osteogenic
B:-Osteoinductive
C:-Osteoconductive
D:-Osteoclastic
Correct Answer:- Option-C
Question21:-The Kirkland flap is
A:-undisplaced flap
B:-Apically displaced flap
C:-laterally displaced
D:-rotational flap
Correct Answer:- Option-A
Question22:-Flap technique best suited for bone grafting purposes is
A:-kirkland flap
B:-papilla preservation flap
C:-Modified widman flap
D:-undisplaced flap
Correct Answer:- Option-B
Question23:-Bioplant is
A:-allograft
B:-autograft
C:-xenograft
D:-alloplast
Correct Answer:- Option-C
Question24:-Calcium phosphate ratio in hydroxyapatite is
A:-1.54
B:-1.45
C:-1.67
D:-1.76
Correct Answer:- Option-C
Question25:-Reshaping of bone involving bone removal to the level which is recommended to the overall result is referred to
as
A:-definitely osseous reshaping
B:-compromise osseous reshaping
C:-vertical growing
D:-radicular blending
Correct Answer:- Option-B
Question26:-Complete epithelial repair after gingivectomy occurs at
A:-1 week
B:-3 week
C:-4 week
D:-3 months
Correct Answer:- Option-B
Question27:-Barricaid is
A:-Resorbable dressings
B:-Tissue conditioners
C:-Light cure periodontal dressing
D:-Tissue adhesives
Correct Answer:- Option-C
Question28:-Most commonly used suture needle in periodontal surgery is
A:-1/4 circle
B:-1/2 circle
C:-3/8 circle
D:-5/8 circle
Correct Answer:- Option-C
Question29:-Probe used for epidemiological screening is
A:-UNC-15
B:-CPI TN
C:-Marquis colour coded
D:-Michigan O probe
Correct Answer:- Option-B
Question30:-Secondary colonizers are all except
A:-green
B:-Orange
C:-red
D:-Yellow
Correct Answer:- Option-D
Question31:-The forces in enamel pellicle formation includes all except
A:-hydrophobic
B:-electrostatic
C:-vanderwaals
D:-covalent
Correct Answer:- Option-D
Question32:-The bacteria which co aggregates with most oral bacteria
A:-Porphyromonas gingivalis
B:-Tannerella forsythia
C:-Prevotella intermedia
D:-Fusobacterium nucleatum
Correct Answer:- Option-D
Question33:-HLA associated with aggressive periodontitis
A:-HLA-A2
B:-HLA-A1
C:-HLA-A9
D:-HLA-B2
Correct Answer:- Option-C
Question34:-In supragingival plaque calcification begins along
A:-outer surface
B:-inner surface
C:-inner and outer
D:-from Central Core
Correct Answer:- Option-B
Question35:-A heavy smoker is who consumes
A:-≥ 10 cigarettes per day
B:-≥ 20 cigarettes per day
C:-≥ 30 cigarettes per day
D:-≥ 40 cigarettes per day
Correct Answer:- Option-B
Question36:-The source of neutrophil chemotactic factor is
A:-neutrophils
B:-macrophages
C:-mast cells
D:-plasma cells
Correct Answer:- Option-C
Question37:-The Classic form of localised aggressive periodontitis was initially referred to as
A:-periodontitis
B:-periodontosis
C:-pericoronitis
D:-localised juvenile periodontitis
Correct Answer:- Option-B
Question38:-Senile atrophic gingivitis is seen in
A:-puberty
B:-pregnancy
C:-menstrual cycle
D:-postmenopausal
Correct Answer:- Option-D
Question39:-Which is a risk determinant
A:-Tobacco smoking
B:-Diabetes mellitus
C:-Dental plaque
D:-Genetic factor
Correct Answer:- Option-D
Question40:-During periodontal therapy the broken instrument tip can be removed with the help of
A:-Pocket irrigation
B:-Push scaler
C:-Periotrievers
D:-EVA system
Correct Answer:- Option-C
Question41:-Select the curette used specifically in furcation
A:-After five curettes
B:-curvettes
C:-Quetin curettes
D:-Langer curettes
Correct Answer:- Option-C
Question42:-The only antibiotic to which all strains of A A Comitans are susceptible
A:-Clindamycin
B:-Ciprofloxacin
C:-Metronidazole
D:-Erythromycin
Correct Answer:- Option-B
Question43:-The drug which can replace cyclosporine is
A:-lsradipine
B:-Valproic acid
C:-Mephenytoin
D:-Tacrolimus
Correct Answer:- Option-D
Question44:-Atypical gingivitis is synonym for
A:-puberty gingivitis
B:-pyogenic granuloma
C:-pregnancy gingivitis
D:-plasma cell gingivitis
Correct Answer:- Option-D
Question45:-The presence of pus in the pocket is indicative of
A:-Severity
B:-Depth
C:-Course
D:-Nature of inflammation
Correct Answer:- Option-D
Question46:-Lipping refers to
A:-Central buttressing
B:-Peripheral buttressing
C:-Plateau
D:-Ledges
Correct Answer:- Option-B
Question47:-The number of walls destroyed in one wall defect
A:-1
B:-2
C:-3
D:-4
Correct Answer:- Option-C
Question48:-The most common clinical sign of trauma from occlusion is
A:-widening of periodontal ligament space
B:-angular bone loss
C:-pathologic migration
D:-tooth mobility
Correct Answer:- Option-D
Question49:-Chronic periodontitis is
A:-Age associated
B:-Age related
C:-Gender associated
D:-Gender related
Correct Answer:- Option-A
Question50:-The key factor in both the development and treatment of furcation involvement is
A:-Root trunk length
B:-Cervical abrasion
C:-Proximal contact area
D:-Occlusal embrasure
Correct Answer:- Option-A
Question51:-The cell surface components or adhesive molecules of bacteria that interact with a variety of host components
and responsible for recognizing and binding to specific host cell receptors
A:-Cadherins
B:-Adhesins
C:-Cohesins
D:-Fimbriae
Correct Answer:- Option-B
Question52:-Thin aggregative fimbriae expressed on the outer surface of some Enterobacteriaceae such as Escherichia and
Salmonella which promote bactrial adhesion and invasion to host as well as biofilm formation
A:-Pili
B:-Curli
C:-Dentilisin
D:-Lectin
Correct Answer:- Option-B
Question53:-In the gingival epithelium the Keratinocytes are interconnected by structures on the cell periphery called
A:-Keratinosomes
B:-Melanosomes
C:-Desmosomes
D:-Lysosomes
Correct Answer:- Option-C
Question54:-Epithelium of gingival sulcus is
A:-Keratinised
B:-Parakeratinised
C:-Non keratinised
D:-Pseudo columnar
Correct Answer:- Option-C
Question55:-Connective Tissue of Gingiva is also known as
A:-Lamina lucida
B:-Lamina Propria
C:-Lamina densa
D:-Lamina limitans
Correct Answer:- Option-B
Question56:-A Gene mapping technique that tests whether one allele of a gene occurs more often in patients with the
disease than in subjects without disease
A:-Segregation analysis
B:-Genome wide analysis
C:-Candidate gene approach
D:-Twin study
Correct Answer:- Option-C
Question57:-The prevalance extent and severity of gingival recession
A:-Increases with age and more prevalent in males
B:-Increases with age and more prevalent in females
C:-Decreases with age and more prevalent in males
D:-Decreases with age and more prevalent in females
Correct Answer:- Option-A
Question58:-The vesiculobullous lesion which presents with an occular involvement
A:-Erosive lichen planus
B:-Mucous membrane Pemphigoid
C:-Bullous Pemphigoid
D:-Pemphigus Vulgaris
Correct Answer:- Option-C
Question59:-Dose of steroids in treatment of Pemphigus Vulgaris is monitored by periodic evaluation of
A:-DsG3 and DsG1 antibodies
B:-DsG2 and DsG4 antibodies
C:-DsG4 and DsG2 antibodies
D:-DsG1 and DsG2 antibodies
Correct Answer:- Option-A
Question60:-Lichen planus is an immunologically mediated mucocutaneous disorder in which
A:-T lymphocytes play a central role
B:-B lymphocytes play a central role
C:-Compliments play a central role
D:-Antibodies play a central role
Correct Answer:- Option-A
Question61:-In which of the following true periodontal pocket formation cannot occur
A:-Chronic Periodontitis
B:-Localised Aggressive Periodontitis
C:-HIV associated Periodontitis
D:-Prepubertal periodontitis
Correct Answer:- Option-C
Question62:-A thin bluish line around the gingival margin is due to absorption of
A:-Silver
B:-Mercury
C:-Lead
D:-Copper
Correct Answer:- Option-C
Question63:-The brushing method advised for patients with Gingival Recession is
A:-Fones method
B:-Bass method
C:-Stillmans method
D:-Modified Bass method
Correct Answer:- Option-C
Question64:-Punched out lesions at the tip of the interdental papillae is characteristic of
A:-Acute herpetic Gingivostomatitis
B:-Acute Necrotising ulcerative Gingivitis
C:-Pericoronitis
D:-Erosive Lichen Planus
Correct Answer:- Option-B
Question65:-In pathogenesis of periodontal pocket formation the junctional epithelium detaches from the tooth surface
when the relative volume of polymorphonuclear leukocytes goes above
A:-40%
B:-50%
C:-60%
D:-80%
Correct Answer:- Option-C
Question66:-The ideal surgical technique for treatment of inadequate width of attached gingiva
A:-Modified widman flap
B:-Apically Displaced flap
C:-Regular widman Flap
D:-Laterally Displaced Flap
Correct Answer:- Option-B
Question67:-Organism that have the ability to form intracellular apatite crystals
A:-Bacterionema and veillonella species
B:-Actinomycetem comitans
C:-Prevotella intermedia
D:-Streptococcus
Correct Answer:- Option-A
Question68:-Aberrant frenal attachment that is clinically significant is
A:-Gingival type
B:-Mucosal type
C:-Papillary types
D:-Papillary Penetrating type
Correct Answer:- Option-D
Question69:-Local drug delivery agent Arestin is
A:-Minocycline
B:-Tetracycline
C:-Doxycycline
D:-Penicillin
Correct Answer:- Option-A
Question70:-The predominant cell seen in Stage II Gingivitis
A:-Neutrophils
B:-Lymphocytes
C:-Plasma cells
D:-Mast cells
Correct Answer:- Option-B
Question71:-Chlorhexidine Gluconate is used as a mouthwash in concentration to
A:-0.2%
B:-2.0%
C:-0.5%
D:-2.5%
Correct Answer:- Option-A
Question72:-Interdental Cleansing Aids
A:-Are more efficient than tooth brushes
B:-Frequently result in gingival recession
C:-Are selected depending on the type of embrasure
D:-Require high manual dexterity
Correct Answer:- Option-C
Question73:-The cell in gingiva which is identified as tactile receptor
A:-Melancocyte
B:-Merkel cell
C:-Langerhans cell
D:-Keratinosome
Correct Answer:- Option-B
Question74:-The probability that an individual or a site will develop a particular condition or disease during follow up is
A:-Prevalence
B:-Risk
C:-Incidence
D:-Odds
Correct Answer:- Option-B
Question75:-Green complex bacteria among the following
A:-Fusobacterium nucleatum
B:-A actinomycetemcomitans serotype as
C:-Tannerella forsythia
D:-Streptococcus salivarius
Correct Answer:- Option-B
Question76:-In corncob formation Streptococcus adhere to
A:-Veillonella species
B:-Porphyromonas gingivalis
C:-Corynebacterium matruchotii
D:-Neisseria species
Correct Answer:- Option-C
Question77:-Experiemental gingivitis was intially described by
A:-P D Marsh
B:-Loe H
C:-Walter Loesche
D:-W D Miller
Correct Answer:- Option-B
Question78:-Pregnancy gingivitis is associated with
A:-Porphyromonas gingivalis
B:-Streptococcus mitis
C:-Actinomyces naeslundii
D:-Campylobacter rectus
Correct Answer:- Option-D
Question79:-Property of Porphyromonas gingivalis involved in evasion of host defence
A:-lgA and lgG degrading proteases
B:-Leukotoxin
C:-Heat sensitive surface protein
D:-Interleukin A
Correct Answer:- Option-A
Question80:-The decline of maximal calculus is referred as
A:-Heterogenous nucleation concept
B:-Reversal phenomenon
C:-Epitactic concept
D:-Critical precipitation phenomenon
Correct Answer:- Option-B
Question81:-Percentage of cystal forms in calculus are
A:-Magnesium whitlockite-58%, hyroxyapatite-21%, octacalcium phosphate-12%, brushite-9%
B:-Hydroxyapatite-58%, octacalcium phosphate -21%, brushite-12%, magnesium whitlockite-9%
C:-Hydroxypatite-58%, magnesium whitlockite-21%; octacalcium phosphate-12%, brushite-9%
D:-Magnesium whitlockite-58%, octacalcium phosphate-21%, brushite-12%, hydroxyapatite-9%
Correct Answer:- Option-C
Question82:-The antibody level that has been reported to be reduced in smokers
A:-lgG1
B:-lgG2
C:-lgG3
D:-lgG4
Correct Answer:- Option-B
Question83:-Smokers have a risk of losing their teeth about
A:-380%
B:-75%
C:-120%
D:-90%
Correct Answer:- Option-A
Question84:-Highest incidence of leukemic gingival proliferation can be seen in
A:-Acute myelocytic leukemia
B:-Chronic lymphocytic leukemia
C:-Acute monocytic leukemia
D:-Chronic myelocytic leukemia
Correct Answer:- Option-C
Question85:-Stress induced immunosuppression increases the potential for destruction by periodontal pathogens by
A:-Decreased cortisol production
B:-Suppression of neutrophil activity
C:-Increased lgG production
D:-Increased phagocytosis
Correct Answer:- Option-B
Question86:-In which stage of gingival inflammation, junctional epithelium develops rete pegs
A:-Early lesion
B:-Initial lesion
C:-Advanced lesion
D:-Established lesion
Correct Answer:- Option-A
Question87:-Fibroblast show cytotoxic alterations in which stage of gingivitis
A:-Stage II
B:-Stage I
C:-Stage IV
D:-Stage III
Correct Answer:- Option-A
Question88:-A systemic disease which produce isolated patches of discolouration that vary from bluish-black to brown
A:-Albright’s syndrome
B:-Peutz-Jegher’s syndrome
C:-Addison’s disease
D:-von Recklinghausen’s disease
Correct Answer:- Option-C
Question89:-Soggy puffiness of gingiva which pits on pressure is seen in
A:-Acute gingivitis
B:-NUG
C:-Chronic gingivitis
D:-Drug induced gingival enlargement
Correct Answer:- Option-C
Question90:-Most commonest form of gingival enlargement is
A:-Drug induced
B:-Enlargement associated with systematic disease
C:-Neoplastic
D:-Inflammatory
Correct Answer:- Option-D
Question91:-Highly vascularised connective tissue with foci of chronic inflammatory cells is seen in which drug induced
gingival enlargement
A:-Phenytoin
B:-Cyclosporin
C:-Nifedipine
D:-Valproate
Correct Answer:- Option-B
Question92:-Which of the benign tumors of gingiva has more incidence
A:-Fibroma
B:-Carcinoma
C:-Papilloma
D:-Giant cell tumor
Correct Answer:- Option-B
Question93:-Stages in the progression of NUG was described by
A:-Pindborg
B:-Mc Carthy
C:-Plaut & Vincent
D:-Listgarten
Correct Answer:- Option-A
Question94:-Zone 3 in electron microscopy of NUG correspond to
A:-Neutrophil rich zone
B:-Bacterial zone
C:-Necrotic zone
D:-Zone of spirochetal infiltration
Correct Answer:- Option-C
Question95:-Most commonest mucocutaneous disease manifesting as desquamative gingivitis
A:-Pemphigus vulgaris
B:-Linear lgA disease
C:-Erosive lichen planus
D:-Lupus erythematosus
Correct Answer:- Option-C
Question96:-In periodontal pocket, zone of attachment of junctional epithelium to the tooth is reduced to
A:-500 μm
B:-More than 200 μm
C:-300 μm
D:-Less than 100 μm
Correct Answer:- Option-D
Question97:-The distance from the attached plaque to the bone is never more than
A:-2.7 mm
B:-0.5 mm
C:-1.97 mm
D:-2 mm
Correct Answer:- Option-A
Question98:-Which inflammatory marker is increased in periodontitis which may act as intermediary step in pathway from
periodontal infection to cardiovascular disease
A:-MMP
B:-PG
C:-CRP
D:-PAMP
Correct Answer:- Option-C
Question99:-Presence or worsening of periodontal disease during pregnancy is associated with increased risk of
preeclampsia about
A:-2-2.5 fold
B:-7 fold
C:-10 fold
D:-5 fold
Correct Answer:- Option-A
Question100:-Which drug can be given for reducing AGE production
A:-Penicillin
B:-Tetracycline
C:-Cephalosporin
D:-Macrolide
Correct Answer:- Option-C