51. The usefulness of radiographs may: ……………………….?
To know the dilation of widening of periodontal ligament near crest
Trauma the pulp of tooth
Situation of gingival
Non, the answer are correct
52. The usefulness of radiographs local factor may: ……………?
Overhanging Restoration
Trauma the pulp of tooth
Situation of gingival
Non, the answer are correct
53. Definition of scaling: ………………………………..?
Process by which plaque and calculus are removed from both supra and subgingival tooth surface.
Process by which residual embedded calculus and portion of cementum are removed from the root to produce a smooth, hard and clean surface
Elimination of dental caries
Elimination of dental caries and filling cavity
54. In CPITN (Community periodontal index treatment need): ……………?
The dentition is divided into five segments.
Pocketing of 4-5 mm, that is, when the gingival margin is on clear area is code no.3.
Pocketing of 6 mm or more, that is, when the gingival margin is the black area of the probe is code no .4.
For appropriate treatment plan code 2 requires improvement home care.
For appropriate treatment plan code 3 require supra and subgingival scaling improvement in home care
55. The distance between the apical extent of calculus and alveolar crest in human periodontal pockets is: …………………………?
0.2 mm.
3 mm.
1.97 mm (=33.16%).
4 mm.
0.02 mm.
56. Average human biologic is: …………………………………….?
3 mm.
2 mm
4 mm.
1 mm.
0.5 mm.
57. The amount of gingival crevicular fluid is: ………………………………………….?
Decreased when inflammation is present.
Increase by trauma from occlusion
Decreased by mastication of coarsee (គ្រោគគ្រាត គគ្រើម) food and smoking.
Decreased by ovulation and hormonal contraceptives
Increased by tooth brushing and gingival massage.
58. Dento-gingival unit: ……………………………………………..?
Is sulcular epithelium and gingival fibers
Is junction epithelium and gingival fibers
Is sulcular epithelium and periodontal fibers
Is junction epithelium and periodontal fibers.
Is oral epithelium and gingival fibers.
59. Excisional new attachment procedure involves: …………………………?
A periodontal flap.
A free gingival graft
A regenerative osseous procedure.
Root planning.
Internal bevel incision from the margin of the gingival apically to point below bottom of pocket.
60. Root planning is: …………………………………………………?
Removal of material Alba and stains from root surface.
Removal of soft tissue wall of the periodontal pocket.
Removal of calculus and plaque from root surface
Removal of food debris from tooth surface.
Removal of disease cementum along with other root deposits.
61. Primary endodontic lesion requires:?
Minor periodontal treatment only.
Periodontal surgical treatment only.
A combined Periodontal and endodontic treatment.
Endodontic treatment only.
A periodontal flap procedure.
62. False gingival enlargement is caused by: …………………………………?
Underlying drug induced gingival enlargement.
Underlying inflammation of periodontal ligament
Underlying dental and osseous structures.
By epulis.
Sarcoidosis (រោគពកសាច់)
63. Subclinical gingivitis is: …………………………………..?
Characterized by vascular proliferation.
Characterized by predominantly lymphocytes microscopically.
Characterized by predominantly plasma cell microscopically
Characterized by erythema, bleeding on probe.
Characterized by increased crevicular fluid flow and infiltration of sulcular and junction epithelium by polymorphonuclear leukocytes.
64. Risk factors of periodontal disease are: ……………………………………..?
Smoking, Diabetes, Poor oral hygiene
Smoking ,Diabetes, Poor Oral Hygiene, Osteoporosis
Smoking ,Diabetes, Poor Oral Hygiene, Osteoporosis, HIV/AIDS
Smoking ,Diabetes, Poor Oral Hygiene, Osteoporosis, HIV/AIDS, Medication
Smoking, Diabetes, Poor Oral Hygiene, Osteoporosis, HIV/AIDS, Medications and Stress.
65. What is the difference between gingivitis and periodontitis?
Gingival sulcus.
Periodontitis pocket.
Loss of epithelial attachment
Mobility of tooth.
Not correct answer
66. Which of the following periodontal disease does not have calculus?
Acute necrotizing ulcerative gingivitis.
Chronic adult periodontitis.
Juvenile periodontitis.
Periodontal abscess.
Periodontal pocket.
67. Which of the following step should be most preferably taken in root planning procedure?
Removal of root caries.
Removal of necrosis cementum and calculus.
Removal of calculus.
Removal of dentine.
Removal of pulp.
68. Less calcified structure is?
Cellular cementum,
Acellular cementum,
Cementoid,
Dentin.
69. Dental plaque adheres to the tooth surface by?
Bacteria,
Sucrose,
Dextran (insoluble and sticky),
Epithelial cells
70. Heamatological disorder associated with periodontal disease is?
AIDS,
Hypophosphatesia,
Wegener’s granulomatosis,
Histiocytosis X
71. Following a flap procedure, pressure is applied to the tissues for one minute in order to:?
Achieve haemastosis
Facilitate suturing
Reduce post - operative swelling / edema
Adapt the tissue against the bone.
72. Indications for muco-gingival surgery include the following EXCEPT
A shallow vestibule.
Insufficient attached gingiva.
Infrabony pocket.
A high frenum attachment
73. Which one in Phase I therapy (non-surgery phase)?
Plaque biofilm control, Diet control, Scaling and Root planning to removal plaque and calculus
Periodontal surgery, including placement implant, Endodontic therapy.
Final restoration, Fixed and removable prosthodontics, Evaluation of restoration periodontal examination.
Plaque biofilm and removal calculus, periodontal condition (pocket, inflammation) occlusion and tooth mobility, other pathologic change.
Plaque biofilm control, Diet control, Scaling and Root planning to removal plaque and calculus correction of contributing and prosthodontics factors, antimicrobial therapy (Local or systemic), Occlusal therapy.
74. Which one in Phase II therapy (Surgical phase):?
Plaque biofilm control, Diet control, Scaling and Root planning to removal plaque and calculus
Periodontal surgery, including placement implant, Endodontic therapy.
Final restoration, Fixed and removable prosthodontics, Evaluation of restoration periodontal examination.
Plaque biofilm and removal calculus, periodontal condition (pocket, inflammation), occlusion and tooth mobility, other pathologic change.
Plaque biofilm control, Diet control, Scaling and Root planning to removal plaque and calculus, correction of contributing and prosthodontics factors, antimicrobial therapy (Local or systemic), Occlusal therapy.
75. Which one in Phase III therapy (Restoration phase):?
Plaque biofilm control, Diet control, Scaling and Root planning to removal plaque and calculus.
Periodontal surgery, including placement implant, Endodontic therapy.
Final restoration, Fixed and removable prosthodontics, Evaluation of restoration periodontal examination.
Plaque biofilm and removal calculus, periodontal condition (pocket, inflammation), occlusion and tooth mobility, other pathologic change.
Plaque biofilm control, Diet control, Scaling and Root planning to removal plaque and calculus, correction of contributing and prosthodontics factors, antimicrobial therapy (Local or systemic), occlusal therapy.
76. Which one in Phase IV therapy (Maintenance phase):?
Plaque biofilm control, Diet control, Scaling and Root planning to removal plaque and calculus.
Periodontal surgery, including placement implant, Endodontic therapy.
Final restoration, Fixed and removable prosthodontics, Evaluation of restoration periodontal examination.
Plaque biofilm and removal calculus, periodontal condition (pocket, inflammation), occlusion and tooth mobility, other pathologic change.
Plaque biofilm control, Diet control, Scaling and Root planning to removal plaque and calculus , correction of contributing and prosthodontics factors, antimicrobial therapy (Local or systemic), occlusal therapy.
77. A pseudopocket (or gingival pocket) is formed by the?
Coronal migration of the gingival margin.
Coronal migration of the epithelial attachment
Apical migration of the gingival margin
Apical migration of the epithelial attachment.
78. Periodontal pockets can BEST be detected by:?
Radiographic detection
The color of the gingival
The contour of the gingival margin
Probing the sulcular area.
79. A compound periodontal pocket is?
Spiral type of pocket.
Present on two or more tooth surfaces.
Infrabony in nature.
No, right answer.
80. Periodontal pocket wall between tooth and bone is?
Infrabony pocket.
Suprabony pocket.
Gingival pocket.
Pseudo pocket.
81. ឧបករណ៏តម្រូវការសម្រាប់ periodontal index?
Light.
Light and Mouth mirror.
Light, Mouth mirror and explorer (periodontal probe).
Light, Mouth mirror and graduated probe.
82. The earliest clinic sign of chronic gingival inflammation?
Erythema.
Oedema.
Loss of stippling.
Bleeding on probing
83. ការបាត់បង់ឆ្អឹង ផ្ដេក មានវត្តមាន នៅក្នុង (Horizontal bone loss is present in):?
Localized aggressive periodontics.
Generalized aggressive periodontitis
Infrabony pockets.
Chronic periodontitis
Acute necrotizing ulcerative gingivitis
84. A 27 year-old male presents to your dental clinic with the following signs: loss of interdental and marginal tippling, blue-red tissue color, the junction epithelium at the CEJ, and bleeding upon gentle probing. Your diagnosis is:?
Gingival recession
Systemic infection
Advanced periodontal disease, (periodontitis)
Melanin pigmentation
Chronic gingivitis.
85. អាប់សែ Periodontal ធ្ងន់ធ្ងរ ត្រូវបានព្យាបាល ដោយ (Acute periodontal abscess is Treated by):?
Gingivoplasty
Gingivectomy
Periodontal flap procedure
Antibiotics
Drainage through the sulcus or by an external incision + antibiotics.
86. Each occlusal the following cyst is associated with an impacted tooth except:?
Dentigerous cyst
Calcifyinf epithelial odontogenic cyst
Keratocyst
Primordial cyst.
87. The earliest sign of gingivitis which is of great help for diagnostic and treatment planning is:?
Pain
Increase gingival fluid exudation
Spontaneous bleeding
Bleeding from gingival sulcus on gentle probing.
88. Dental floss is use to:?
Remove interdental plaque
Remove interdental plaque, interdental food and debris.
Message gums
Prevent gingival recession
89. The best toothbrush bristle is:?
Medium
Hard
Soft
Electric
90. Teeth grinding and gnashing (bruxism) can lead to:?
A pain in the neck
Sore teeth
Headaches
A pain in the neck, Sore teeth, Headaches
91. Straightening of the teeth is called:?
Orthodontics
Pediatrics
Geometry
Endodontic
92. The distance between the apical extent of calculus and alveolar crest in human periodontal pockets is:?
WHO probe.
CPITN probe
Naber's probe
Michigan "o" probe
Periodontal exploer
93. The distance between the apical extent of calculus and alveolar crest in human periodontal pockets is:?
Decreased when inflammation is present.
Increase by trauma from occlusal
Decreased by mastication of coarse food and smoking
Decreased by ovulation and hormonal contraceptives.
Increased by tooth brushing and gingival massage.
94. A forcibly embedded tooth bristle may be retained in gingival and course:?
Gingival reccesion
Periodontal pocket
Attachment loss.
Bone loss
Gingival abscess.
95. For periodontal disease, smoking is:?
Risk factor
Prognostic factor
Risk factor, Prognostic factor.
None of answer is right
96. The prevalence of gingival recession in people who are older than 50 years:?
40 %
60 %
80 %
100 %
97. Gingival abrasion is caused by:?
Faulty brushing
Soft tissue friction
Tooth malposition
High frenal attachment
98. Which of the following is usually not caused by gingival recession?
Hypersensitivity
Root caries
Periodontal abcess
Pulpal hyperaemia
99. Bleeding on probing starts in:?
Stage I gingivitis
Stage II gingivitis
Stage III gingivitis
Stage IV gingivitis
100. How many strokes?
1
2
3
4
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