surgery-past years qs

8/22/2019 Surgery-past Years Qs

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1. To overcome local anesthetic failure sufficient local anestheticsolution should be deposited. In an adult patient requiring extraction:

a. 2.0 ml of solution is adequate for infiltration in the maxillab. 0.5 ml of solution is adequate for infiltration in the maxillac. 1.0 ml of solution is adequate for infiltration in the maxillad. None of the above

2. To achieve regional block to extract a lower first molar in a 35 yearsold male healthy patient:

a. 2.8 ml of solution is required for inferior alveolar nerve blockb. 1.5 ml of solution is required for inferior alveolar nerve blockc. 0.2 - 0.5 ml of solution is required for long buccal nerve blockd. b &

3. Achieving adequate local anesthesia depends on the method ofadministration. For anesthesia of mandibular teeth:

a. Infiltration is sufficient for all mandibular teeth

b. Regional block is the only appropriate method of anesthesiac. None of the aboved. All of the above

4. The Gold standard of local anesthetic solution:a. Lignocaine with xylocaineb. Lignocaine with vasopressinc. Lignocaine with adrenalined. None of the above

5. Most common causes why a local anesthetic injection fails:a. Factors related to the operatorb. Drug interactionsc. Patient dependent factorsd. a & c


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6. Operator factors which contribute to achieving adequate localanesthesia required for oral surgery:

a. Using correct techniqueb. Administration of sufficient amount of solutionc. Using appropriate method of administrationd. All of the above

7. Intraligamentary anesthesia:a. Can be used in the mandible onlyb. May predispose to infective endocarditis in susceptible patientsc. May be used both as primary or a secondary techniqued. b & c

8. Anatomical factors that may be contribute to failure of local anestheticinjection include the following except:

a. Variation in position of nerves and foraminab. Accessory nerve supplyc. Barrier to anesthetic diffusiond. Low ph

9. Pathological causes of failed local anesthetic injection:a. Trismusb. Traumac. Inflammationd. All of the above

10. The following technique may be used to help overcome failedanesthesia:

a. Intraligamentaryb. Intrapulpal

c. None of the aboved. a & b

11. For a righthanded dental student extracting the 4 |, which of thefollowing is true

a. Use infraorbital block onlyb. Stand in front of the patient facing him


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c. The patients eyes should be 18 cm below the students shoulderd. Use the right hand to support the alveolar ridge during extraction

e. None of the above

Which of the following statements are TRUE and which are False:12-Local Anaesthesia is loss of pain sensation unaccompanied by loss ofother forms of sensibility.

13-Local Analgesia results in the loss of all pain, temperature, and touchsensations but does not anaesthetize the proprioceptive fibers of theinvolved nerves

14-lignocaine and prilocaine belong to the Amide group of localanesthetics

15-Bupivacaine is a long acting local anesthetic agent

16-Adrenaline and mepivacaine are vasoconstrictors

17-Vasoconstrictors in local anesthetic solution increase the duration of

anesthesia

18-Adrenaline is the vasoconstrictor commonly used in local anesthesia

19-The length of the long needle used for regional block local anaesthesiais 5 cm.

20-The Vehicle used in local anesthetic solution is isotonic solution such asmodified ringer solution

t

21-Topical anesthesia can be produced using Submucosal and Sub-periosteal techniques.

22-Infra-orbital and Intra-ligamentary are types of regional anesthesia

23-Infiltration may be unreliable in the mandible because of the dense outercortical plate of bone


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24-Pulpal anesthesia of maxillary teeth after local infiltration lasts much

shorter than does pulpal anaesthesia of mandibular teeth after blockanaesthesia.

25-Pulpal anaesthesia disappears 60 to 90 minutes before soft tissueanaesthesia does.

26-Middle Superior Alveolar (Dental) Nerve supplies Incisors & Canines &labiobuccal soft tissues

27-Greater Palatine (Anterior palatine) nerve branches are Infra-orbital and

Superior Alveolar (Dental) nerves

28-The mental nerve block produces anaesthesia of the premolar, canineand incisor teeth of the same side.

29-The duration of soft tissue anesthesia following injection of Bupivacaine0.5% with 1: 200,000 adrenaline 2-3 hours

f30-The total dose of adrenaline must not exceed 500 g. i.e. not more than

40 ml of local anaesthesia containing adrenaline in a 1 80 000 solution

31-The Long Buccal nerve supplies soft tissue distal to the 2nd premolar

32-The Anterior Boundary of the pterygo-mandibular space is the Parotidgland

33-The Lateral wall of the pterygo-mandibular space is the Medial (inner)wall of ascending ramus

34-The Roof the pterygo-mandibular space is the Lateral pterygoid muscle

35-The maximum number of 2ml local anesthetic cartilages that can begiven for an adult patient is 17.


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36-When extracting the lower first molar the nerves that must be

anesthetized are the inferior dental and the Long buccal nerves.

37-In planning any surgical procedure the first step is always a thoroughreview of the patients medical history.

38-Thorough preoperative instruction and explanations for the patient areessential in preventing the majority of complications that occur in thepostoperative period.

39-Myocardial infarction, heart block and stroke are cardiac causes ofcollapse

40-When Vasovagal Syncope (Fainting) occurs treatment should befinished very quickly

41- When giving anesthesia for the lower Left third molar, the Operatorshould stand in front of the patient

42- The local anesthetic agent is not effective once given in the presenceof dental abscess because it doesnt work effectively in alkaline media

43. The mode of action of local anesthesia is by blocking Potassiumchannel

44-. The maximum number of local anaesthetic solution cartilagescontaining 2 ml of 2% lignocaine & 1: 80000 adrenaline that can be given toa patient is (12 )

45-Indications for surgical removal of a tooth or roots include:

A. Multi-rooted teeth


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B. Ankylosed roots & hypercemented rootsC.Teeth with apices at right to long axis of the teeth

D. B &CE. All of the above

Question Answer

1 c. 1.0 ml of solution is adequate for infiltration inthe maxilla

2 d. b & c

3 c. None of the above

4 c. Lignocaine with adrenaline

5 d. a & c

6 d. All of the above

7 d. b & c

8d. Low ph

9 d. All of the above

10 d. a & b

11 b-Stand in front of the patient facing him

12 TRUE

13 TRUE

14 TRUE


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15 TRUE

16

FALSE

17 TRUE

18 TRUE

19 FALSE

20 TRUE

21 FALSE

22 FALSE

23 TRUE

24 TRUE

25 TRUE

26 FALSE

27 FALSE

28 TRUE

29 FALSE

30 TRUE

31 TRUE

32

FALSE

33 TRUE

34 TRUE


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1- For palatal injection , how many injection for 1st premolar , 1st molar ,2nd

molar , 3rd molar :

*One injection

2- If we want to extract lower central incisor we do :

*Buccal and lingual infiltration

3- Local analgesia : loss of all forms of sensation including pain, touch , andtemperature but doesn't anaesthesia

*false

35 FALSE

36 TRUE

37 TRUE

38 TRUE

39 TRUE

40 FALSE

41 FALSE

42 FALSE

43 TRUE

44 TRUE

45 D. B &C


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4- u have to wait 5 minute for the local anesthetic to work

5- local anesthetic consist of strong acid and weak base

*true

6- bupivacaine is long acting local anesthetic*true

7- regarding the lumen of the needle , the more the diameter the smaller the gauge

*true

8- submucosal and subperiosteal are kind of topical anesthesia*false

9- maxillary bone :

a -porousb- thick

c-thind-dense

*answer : a +c

10- if we want to extract 1st molar , how many nerve involved :*3 nerves

11- If we want to block the ID nerve we go :

*Lateral to the pterygomandibular raphe

12- In adult person , the mandibular foramen :*At the level of occlusal plane

13- long buucal nerve block :a- Distobuccal of the 1st molarb- Disto buccal of the 2nd molar

c- Distobuccal of the 3rdd- Anyone

*The answer c


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14- Adrenaline and mepivacaine are vasoconstrictor*False

15- Hematoma when we want to block ID:

a- Permanent loss of function of masseterb- Perminant loss of sensation in the ipsilateral nerve on the same side

c- Perminant loss of sensation in the contralateral nerve on the same sided- None of the above

answer d

Done By:Deema Hamarsheh

surgery-past years qs

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