mid1. 4th.06

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  • 8/13/2019 Mid1. 4th.06

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    when treating a hypertensive patient, one of the following is not correct:

    stress level should be minimized

    adrenaline in local anaesthesia is contraindicated sudden severe increase in blood pressure may result in cardiac arrest

    some anti-hypertensive drugs cause postural hypotension, thus the patient should be

    raised from supine to upright position slowly none of the above

    S. mutans and S. sangius are mostly incriminated for nfective endocarditis of dentalorigin because:

    they are present in large numbers in the mouth

    they are released into the blood stream in large numbers during inferior alveolar

    bloc!s they have comple" attachment mechanisms enabling them to adhere to haemoglobin

    in the #$Cs

    the first and third answers

    all of the above

    patients at ris! from infective endocarditis re%uiring antibiotic prophyla"i" includethe following:

    recent myocardial infarction of less than & months

    coronary arteries bypass graft history of childhood rheumatic fever

    cardiac implanted pacema!er

    all of the above

    for the prophyla"is of bacterial endocarditis:

    amo"ycillin 'g of a single oral dose can be given (ust before the operation for patients with a history of endocarditis gentamycin and amo"ycillin are given warfarin has to be given

    the first two answers

    all of the above

    patients with angina pectoris attending for e"traction of a lower molar tooth:

    re%uire adrenaline ) mg * prior to the e"traction

    are at higher ris! of developing udwigs angina are at higher ris! of myocardial infarction than patients with haemophilia

    all of the above

    none of the above

    the management of myocardial infarction in the dental clinic includes:

    laying the patient flat on a firm surface give warfarin orally

    give o"ygen

    all of the above

    none of the above

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    ndications for surgical removal of a tooth or roots include:

    . *ulti-rooted teeth

    $. n!ylosed roots / hypercemented rootsC. 0eeth with apices at right to long a"is of the teeth

    1. $ /C

    2. ll of the above

    *ucoperiosteal flaps used in oral surgical procedures are raised:

    . 0o allows surgical access to underlying tissues.$. 0o maintain blood supply to ad(acent mucosa

    C. 0o prevent postoperative infection

    1. $ /C

    2. ll of the above

    3rinciples of flap design include:

    . 4ince soft tissues heal long the length of the incision, smaller incisions heal faster

    than longer incisions.$. 5ull-thic!ness mucoperiosteal flap provide poor access to impacted tooth6root and

    should be avoidedC. 0he incision should be designed so that after bone is removed the suture line lies

    upon, and is supported by the blood clot of the bony defect created by surgery.

    1. / C2. 7one of the above

    1uring and after surgical e"traction bone is removed in order to:

    . #educe size of bony soc!et$. 3rovide a space into which the tooth6root may be displaced

    C. #emove sharp edges and bony pro(ection

    1. / $2. ll of the above

    0echni%ues used for bone removal during surgical e"traction:. Creating a gutter in the bone alongside the crown of the tooth.

    $. 3ostage-stamp method using a small round bur.

    C. 8sing a chisel to remove bone

    1. / $2. ll of the above

    #esorbable suture material include:. 9ut 4uture material

    $. 3olyglycolic acid.

    C. 7ylon *ono6mutifilamnetous;1. / $

    2. ll of the above

    \

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    0he largest suture size in the following is:

    . )6

    $. '6C. =6

    1. 6

    2. ?6

    Cardiopulmonary resuscitation C3#; is indicated when:

    the heart stops pumping a bolus of food has suddenly bloc!ed the oropharyn"

    angina becoming unstable in a chronic smo!er male

    none of the above

    bsence of arterial pulse occurs after arrest of the heart muscle, this is confirmed by:

    very low systolic blood pressure and a high diastolic pressure

    very low systolic and diastolic blood pressure

    wheezy breath followed by convulsions the second and third answers

    none of the above

    & year old male with a history of a coronary arteries bypass graft years ago

    presenting for the removal of a grossly carious lower right first molar. @hich of thefollowing is correct with regard to his dental managementA

    his 7# must be chec!ed pre-operatively if he is ta!ing warfarin

    there is no need for antibiotic prophyla"is

    oral 0emazepam may be given to reduce an"iety the second and third answers

    all of the above

    the commonest cause of collapse fainting; in the dental surgery is:

    myocardial infarction

    adrenal insufficiency vasovagal syncope

    4tro!e

    all of the above

    5or an intra-oral surgical procedure, releasing incision of the flap should be

    designed to be sited away fromA

    the area of the facial nerve the upper canine eminence

    the area distal to the upper second molar

    the first two answers all of the above

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    during the removal of a buccally displaced upper third molar, the ape" of the palatal

    root has fractured. 0his can be left in situ providing that:

    it is less than = mm in length the tooth in not infected

    the ma"illary sinus is not infected

    the first two answers all of the above

    hypercementosis of teeth roots: is an important cause of toot fracture during e"traction

    in upper premolars, e"traction may cause oro-antral communication

    is a feature of $ehcets disease

    the first and second answerall of the above

    while raising a flap to remove a retained root of an upper second premolar:

    the flap must not e"ceed the alveolus around the root to reduce postoperative pain the middle superior alveolar nerve must be identified and protected

    three sided flaps are favorable to envelope flaps to prevent gingival recession all of the above

    none of the above

    the transalveolar e"traction of the remaining roots of the lower right second

    premolar may carry the following ris!s:

    numbness of the right side of the chin area

    bleeding from a branch of the lingual artery damage to the left mandibular condyle

    all of the above

    none of the above

    a chisel and hammer can be used to remove bone for transalveolar e"traction

    according to the following: a stop cut should be placed to prevent fracturing the (aw along its bone grains

    this techni%ue is mainly used for the conscious patient to measure the needed force

    according to the patients response

    does not re%uire saline coolant but the chisel should be stored in a sterile ice bath all of the above

    none of the above

    the removal of upper third molars:

    should never be attempted with curved elevators

    may result in fractured coronoid process may result in fractured ma"illary tuberosity

    the first and third answers

    all of the above

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    instanding lower second premolars are usually removed because of:

    trauma to the mental nerve

    caries affecting it or its neighboring teeth for orthodontic reasons

    the second and third answers

    all of the above

    which of the following is considered an impacted tooth:

    a partially erupted lower 'rdmolar in a vertical position in a B) year old female whohas enough space distal to the Bndmolar

    a completely unerupted lower 'rdmolar in a vertical position in a =B year old male

    who has enough space distal to the Bndmolar

    a partially developed, totally unerupted lower 'rdmolar that is tilted mesially in a )=year old male

    all of the above

    none of the above

    which of the following is classified as C-B according to $ell and 9regory system:

    a lower wisdom tooth that has its highest aspect between the occlusal plane andcervical line of the second molar with half of the crown within the ramus

    a lower wisdom tooth that has its highest aspect below the cervical line of the

    second molar with half of the crown within the ramus a lower wisdom tooth that has its highest aspect below the cervical line of the

    second molar with all of the crown within the ramus

    a lower wisdom tooth that has its highest aspect in level with the occlusal plane of

    the second molar with hlaf of the crown within the ramusC> a lower wisdom tooth that has its highest aspect between the occlusal plane and

    cervical line of the second molar with all of the crown anterior to the ramus

    a transverse impaction of the lower ' rdmolar is a severe form of mesioangular

    impaction:

    true false

    which of the following is notan indication for the e"traction of an impacted lower

    'rdmolar: gross caries of the 'rdmolar with crowding in the lower anterior teeth in a patient

    who is not willing to have orthodontic treatment

    gross caries at the distal aspect of Bndmolar large cystic lesion in close association with the ' rdmolar

    fully covered 'rdmolar in an elderly edentulous patient with severely atrophic

    mandible none of the above

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    e"traction of an impacted, fully covered 'rdmolar that is not associated

    radiographically with any pathology for the treatment of une"plained facial pain:

    will definitely cure the patient definitely will not cure the patient

    is controversial because it may or may not cure the patient

    should be considered a routine practice is contraindicated

    :