نصائح مهمة للحفاظ على صحة الفم والأسنان

1. What is the purpose of explorers?  
A. To locate and measure pockets.  
B. To remove calculus.  
C. To locate calculus deposits and caries.  
D. To measure the thickness of periodontium.  
E. To measure BOP.  
2. What is the purpose of the cumine instrument?  
A. To dislodge thick calculus deposits to allow visualization of the crown.  
B. To gently curette large sockets and remove granulation tissue.  
C. To remove heavy subgingival calculus deposits.  
D. To remove the caries.  
E. None of the above.  
3. Which of the following instruments has a two-point contact with the tooth?  
A. Hoe.  
B. Sickle.  
C. Curette.  
D. Cumin Scaler.  
E. None of the above. 
4. Which part of the instrument should remain parallel (whenever possible) to the long axis of٨ the tooth?  
A. Blade.  
B. Cutting edge.  
C. Handle.  
D. Shank.  
E. All of the above. 
5- Hoe scaler is used to remove----------- 
A. remove tenacious subgingival deposits  
B. for scaling of ledges or rings of subgingival calculus.  
C. a&b  
D. supragingival calculus

E. supra and subgingival calculus

6- Supra gingival scaling instruments may include:  
A. Periodontal curettes.  
B. Sickles & cumines  
C. Periodontal Files  
D. Hoes instruments  
E. All of them  
7. Among disadvantages of sonic & ultrasonic instrumentations are:  
A. Heat generation  
B. Aerosol contamination  
C. Simple manipulation  
D. Better visaulization  
E. Both a & b  
8- Best instrument grasp that recommended for all periodontal instruments is  
A. Pen grasp  
B. modified pen grasp  
C. palm up grasp  
D. palm down grasp  
E. none of the above 
9- Hand instruments has advantage over sonic and ultra-sonic instrument:  
A. More efficient in calculus removal.  
B. Has tactile sensation.  
C. Less effort, pressure and time.  
D. Minimal soft tissue trauma.  
E. All of the above.  
10- The most recommended grasping during periodontal instrumentation:  
A. Pen grasp.  
B. Palm and thumb grasp.  
C. Modified pen grasp.  
D. A & C.  
E. None of the above. 

 11- Kirkland and Orban's knives are used in:  
A. Curettage.  
B. Gingivectomy.  
C. Root planning.  
D. Scaling.  
E. All of the above.  
12- Which of the following grasps are useful for stabilizing instruments during sharpnening?  
A. Palm and thumb grasp.  
B. Modified pen grasp.  
C. Standardized pen grasp.  
D. All of the above.  
E. None of the above. 
13. Which instruments are specifically designed for removing large subgingival calculus ledges? 
A. Sickle scalers. 
B. Hoe scalers. 
C. Gracey curettes. 
E. Plastic instruments. 
D. After Five curettes 
14. A characteristic feature of a sealing instrument's blade is: 
A. A straight edge for mesial surfaces. 
B. A sharp pointed tip for root debridement. 
C. A rounded tip to avoid injury to soft tissues. 
D. A design for use only on anterior teeth. 
E. A blade that can be cooled during use. 
15. Which of the following is a key difference between Gracey curettes and universal curettes? 
A. Gracey curettes are used for all areas of dentition, while universal curettes are used only  
for posterior teeth. 
B. The blade of Gracey curettes is curved in one plane, while a blade of universal curettes is 
curved in two planes. 
C. Gracey curettes have a 90-degree angle of a blade to lower shank, while universal  
curettes have an offset blade. 
D. Gracey curettes are designed for specific areas of dentition, while universal curettes are adaptable to any area. 
E. Gracey curettes

 

 

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