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plz answer prostho questions

Discussion in 'International Dental' started by sonibun, Dec 20, 2005.

  1. sonibun

    sonibun Senior Member
    7+ Year Member

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    Question 1.1

    It was stated in your textbook that there are two prognoses for a prosthodontic patient. What are they and why are there two?





    Question 1.2

    The practice of allowing the patient to relax and talk freely about his problems with little interruption is considered to be

    time consuming and unnecessary
    of dubious technical value,but good therapy for the patient
    relaxing for both the dentist and the patient
    a basis upon which to judge the patient's mental attitude





    Question 1.3

    Most denture patients fall into which one of the following psychological classifications?

    philosophical
    exacting or critical
    hysterical
    indifferent





    Question 1.4

    What is the purpose of the "Initial Interview"?

    to determine patient expectations
    to determine the patient's adaptability level
    to determine if you should attempt to treat the patient
    all of the above





    Question 1.5

    What are the primary support areas for the maxillary and mandibular dentures?

    maxillary _________________________

    mandibular ____________________________ or ________________________





    Question 1.6

    True or False

    The nasopalatine nerves and vessels pass through the incisive canal. Since a thick pad of soft tissue overlies the opening of the canal, no denture base relief is required.





    Question 1.7

    Which of the following conditions or diseases tend to accelerate residual ridge resorption?

    Paget's disease
    estrogen deficiencies
    diabetes
    colitis
    a, b, c
    b, c, d
    a, c
    c, d
    a, b, c, d





    Question 1.8

    Which of the following may lead to increased bone resorption?

    glucocorticoid therapy for rheumatoid arthritis
    estrogen deficiency
    increased parathormone (PTH) secretion
    kidney disease
    all of the above





    Question 1.9

    As resorption progresses, what dimensions do the maxillary and mandibular arches assume?

    the maxillary arch becomes narrower and the mandibular arch broader
    the maxillary arch becomes broader and the mandibular arch narrower
    both arches become narrower
    both arches become broader





    Question 1.10

    The ___________________________ is located between the external oblique line and the residual ridge.

    mylohyoid ridge
    retromylohyoid space
    retromalar space
    buccal shelf





    Question 1.11

    What gland exhibits the most profound influence over bone deposition and resorption?





    Question 1.12

    True or False

    In the fabrication of complete dentures, it is easier to circumvent maxillary tori than mandibular tori.






    Question 1.13

    True or False

    The buccal shelf is frequently the primary denture support area in the mandible.





    Question 1.14

    Bone resorption is greater in the mandibular residual ridge than the maxillary. Approximately how much greater?

    2 times greater
    4 times greater
    6 times greater
    8 times greater





    Question 1.15

    What are the indications for surgical removal of a palatal torus?





    Question 1.16

    What are the medial and lateral boundaries of the buccal shelf?





    Question 1.17

    (A) The genial tubercles are formed from hard, dense bone. (b) The genial tubercles may be used as a primary support area when the residual ridge exhibits severe resorption.

    A and B are both true
    A is true but B is false
    A is false but B is true
    A and B are both false





    Question 1.18

    Because of its position in relation to vertical closure and its anatomical features, the ______________________ of the mandible is often able to bear more stress from dentures than any other mandibular area.

    external oblique line
    buccal shelf
    ramus
    lingual tuberosity





    Question 1.19

    Support for the upper denture is ultimately derived from two pairs of bones. What are they?

    maxillary
    zygomatic
    sphenoid
    palatine
    a and b
    a and c
    a and d
    b and d
    c and d





    Question 1.20

    After extractions and healing, the maxillary denture bearing area discloses severe bony undercuts in both tuberosity areas. Usually, the best treatment for this condition is to

    surgically reduce the undercuts just enough to allow a path of insertion
    do no surgical trimming on the ridge but reduce the denture base in the undercut areas
    use soft liner inserts in the tuberosity areas of the maxillary denture
    reduce both tuberosities so no bony undercuts exist anywhere on the ridge
     
  2. sonibun

    sonibun Senior Member
    7+ Year Member

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    Question 1.21

    Surgical removal of a palatal torus is recommended in the event it

    presents undercuts
    impedes the normal movements of the tongue
    acts as a fulcrum area for the denture
    presents any of the above conditions





    Question 1.22

    Differentiation of lesions caused by hyperparathyroidism from other osteoporotic lesions mostly involves

    neurological signs
    examination of blood chemistry changes
    biopsy, in its later stages
    radiographic examination





    Question 1.23

    Hypoparathyroidism is commonly treated with

    parathyroid extract
    synthetic calcitonin
    calcium
    vitamin D and calcium
    phosphorus





    Question 1.24

    Which is the most accurate statement regarding the rate of formation and resorption of bone?

    In a child, the rate of bone resorption is greater than the rate of bone formation.
    In a 35 year old man, the rate of bone regeneration is greater than the rate of bone resorption.
    In an aged person, the rate of bone resorption is greater than the rate of regeneration.
    The rate of bone regeneration is constant throughout life.





    Question 1.25

    Calcium and phosphorus are the two minerals most important to bone metabolism. Which of the two most commonly exhibits an uptake or utilization deficiency?





    Question 1.26

    True or False

    The greater palatine foramen permits passage of the anterior palatine nerves and vessels. The opening is protected sufficiently by soft tissue and no relief of the denture base is neeeded.





    Question 1.27

    It is generally thought that pressure from denture wear accelerates bone resorption. What is the probable mechanism?





    Question 1.28

    What is the approximate incidence of palatal tori?

    10%
    15%
    20%
    25%





    Question 1.29

    What is the most common bone change associated with aging, systemic disease, or hormonal or dietary imbalance?

    osteoradionecrosis
    osteoporosis
    hypercalcification
    osteomatous hyperplasia





    Question 1.30

    True or false

    A mandibular denture cannot extend below and lateral to the anterior portion of the mylohyoid line.





    Question 1.31

    True or False

    The maxillary alveolar ridge or process consists of two plates of cancellous bone surrounding a "core" of cortical bone.





    Question 1.32

    The denture base must sometimes be relieved slightly over the zygomatico-alveolar crest because

    the bone is not in a good position for bearing stress
    the mucosal covering is too resilient for stability
    the bone is prominent and the mucosa is very thin
    the muscles in this area would tend to dislodge the denture





    Question 1.33

    In an edentulous patient, the coronoid process may

    limit the distal extension of the mandibular denture
    affect the position and the arrangement of mandibular posterior teeth
    determine the location of the posterior palatal seal of the maxillary denture
    limit the thickness of the denture flange in the maxillary posterior buccal space
    none of the above





    Question 1.34

    Which of the following statements is FALSE?

    The maxillary labial frenum contains no muscle fibers.
    The maxillary labial frenum exhibits little lateral movement; thus, the notch in the denture should be narrow.
    The movement of the maxillary buccal frenum is influenced by both the buccinator and orbicularis oris muscles.
    The submucosa in the posterior palatal seal area is infiltrated with both adipose and glandular tissue.
    None of the above are false.





    Question 1.35

    True or False

    Epulis fissuratum is a painful lesion, usually caused by denture overextensions.





    Question 1.36

    Which of the following DOES NOT contribute to the formation of the retromolar pad?

    fibers of the buccinator muscle
    pterygomandibular raphe
    fibers of the superior pharyngeal constrictor muscle
    temporal tendon
    fibers of the geniohyoid muscle





    Question 1.37

    Lesions of the oral mucous membranes that are referred to as "moniliasis" or "thrush" are caused by which one of the following organisms?

    herpes simplex
    herpes zoster
    Mycobacterium tuberculosis
    Candida albicans





    Question 1.38

    Angular cheilitis may be caused by
    improper diet
    Candida infection
    poor oral hygiene
    excessive vertical dimension of occlusion


    a, b, and c
    a, b, and d
    a, c, and d
    b, c, and d
    all of the above





    Question 1.39

    Which of the following statements is FALSE in regard to fibrous hyperplasia of the residual ridges?

    There is an increase in dense fibrous connective tissue in both the lamina propria and the submucosa.
    It is usually painless.
    The hyperplastic tissue must always be removed prior to fabrication of dentures.
    It is particularly common where a single complete denture is opposed by natural dentition.
    None of the above statements is false.





    Question 1.40

    What is the most likely cause of angular cheilitis?





    Question 1.41

    Which of the following statements is TRUE?

    Age is not a significant factor in the time required for tissue to recover from the effect of pressure.
    Attached mucosa is incompressible.
    Light loads of long duration will deform tissue less than heavy loads of short duration.
    It is desirable to correct occlusal errors at the time of insertion of complete dentures.





    Question 1.42

    The maxillary denture base should be relieved over the area of the incisive foramen because

    the mucosa is thin in this area
    there is danger of pressure on the nerve and blood vessels in the area
    the bony surface in the area is uneven and irregular
    pressure in this area tends to dislodge the denture





    Question 1.43

    Hypertrophy that occurs in the border extension areas takes the form of slitlike fissures. Which of the following conditions is most likely to cause these lesions?

    poor oral hygiene
    allergic response to the denture materials
    overextension of the denture borders
    riboflavin dietary deficiency





    Question 1.44

    A patient requires a new set of complete dentures. Examination reveals that the palatal tissues are highly inflamed, the palate has a rough papillary surface, and the maxillary denture is very loose. What procedure is first indicated for this patient?

    Remove the papillary nodules with electric cautery.
    Use a tissue conditioning material in the old denture.
    Make the maxillary impresion with modeling compound.
    Make the maxillary impression using alginate.
    Biopsy the inflamed palatal tissue.





    Question 1.45

    Which of the following statements is FALSE?

    Increased mucosal thickness and keratinization are usually associated with denture wear.
    The mucosa of many denture patients shows histological evidence of injury even in the absence of symptoms.
    The ideal thickness of the mucosa over the crests of the ridges is 1.0 to 2.0 mm.
    Tissue recovery following removal of dentures requires 48-72 hours.
     
  3. sonibun

    sonibun Senior Member
    7+ Year Member

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    Question 1.46

    Which of the following IS NOT a common finding in the edentulous diabetic patient?

    increased salivation
    mucosal hyperemia
    decreased tolerance to trauma
    poor wound healing





    Question 1.47

    The retromolar pad consists of

    hard, pale, pear-shaped gingival tissue
    typical non-keratinized gingival tissue
    a rounded, bony prominence covered by fat tissue
    a soft pad of glandular tissue and muscle fibers





    Question 1.48

    What is the PRIMARY reason why the denture wearer should remove his/her dentures for at least 8 out of 24 hours?

    to give the soft tissues time to regain resiliency
    to provide for relief and recovery from any irritation or soreness of the tissues
    to avoid continuous pressure on the blood circulation
    to reduce the amount of pressure on the nerves that exit through the various foramina.





    Question 1.49

    When papillary hyperplasia is seen on the palate of a patient wearing a maxillary complete denture, the condition is likely to be associated with

    vitamin deficiency
    hypervitaminosis accompanied with a sudden increase in body weight
    heavy smoking and continuous wearing of the denture
    a hypersensitivity of the patient to the acrylic denture base
    ill fitting dentures, a poor state of oral hygiene, and 24 hour denture wear





    Question 1.50

    A chronically ill-fitting denture may cause an inflammatory fibrous hyperplasia adjacent to its border. This condition is

    traumatic ulcer
    inflammatory papillary hyperplasia
    pseudoepitheliomatous hyperplasia
    epulis fissuratum





    Question 1.51

    Which of the following would suggest investigation into a possible underlying systemic disease?

    fibrous hyperplasia of the residual ridge
    epulis fissuratum
    moniliasis
    inflammatory papillary hyperplasia





    Question 1.52

    A Candida albicans secondary infection is often associated with which of the following? (may be more than one answer)

    inflammatory papillary hyperplasia
    epulis fissuratum
    lichen planus
    angular cheilitis





    Question 1.53

    Dry mouth is common but what is the ULTIMATE DANGER in a patient who has received radiation therapy?





    Question 1.54

    The pterygomaxillary notch (hamular notch) is an important landmark. Structures found in this notch are

    the pterygomaxillary nerve
    the ligament of the tensor veli palatini
    the ligament of the tensor palati
    areolar tissue


    a and b
    b and d
    b and c
    a and c





    Question 1.55

    The most likely tissue reaction to gross overextension of a complete denture that has been worn for a long time is

    epulis fissuratum
    pyogenic granuloma
    papillary hyperplasia
    giant cell reparative granuloma






    Question 1.56

    The most important reason for treatment of hyperplastic tissue before construction of complete or removable partial dentures is to

    provide a firm, stable base for the denture
    remove tissue that frequently becomes malignant
    improve oral esthetics
    none of the above





    Question 1.57

    True or False

    The mandibular labial frenum has a greater potential for movement than does the maxillary labial frenum.






    Question 1.58

    A patient in excellent health and wearing complete dentures complains of a burning sensation in the anterior palate. This is most likely due to

    a nicotinamide deficiency
    deflective occlusal contacts
    failure to relieve the area over the incisive papilla
    excessive thickness of the denture in the rugae area





    Question 1.59

    True or False

    Although the maxillary buccal frenum usually contains no muscle fibers, its movement is affected by contraction of the buccinator and orbicularis oris muscles.





    Question 1.60

    Why should the greatest possible bearing area for a mandibular denture be used?

    to increase tongue space and to improve esthetics
    to provide balanced occlusion and to increase tongue space
    to improve esthetics and to aid in orienting the plane of occlusion
    to withstand the forces of mastication and to increase the effectiveness of the border seal





    Question 1.61

    What muscle lies under the mandibular denture flange in the buccal shelf area?





    Question 1.62

    Which one of the following is MOST OFTEN accompanied by pain?

    epulis fissuratum
    fibrous hyperplasia
    moniliasis
    inflammatory papillary hyperplasia
    pseudoepitheliomatous hyperplasia





    Question 1.63

    Which one of the following entities MOST COMMONLY requires surgical correction prior to fabrication of complete dentures?

    denture stomatitis
    inflammatory papillary hyperplasia
    epulis fissuratum
    denture sore mouth
    angular cheilitis





    Question 1.64

    You have made new dentures for a patient. At the 24 recall appointment, he complains of a sore throat. You note that the lingual denture flange extends too far posteriorly. What muscle contraction caused pressure against the overextended denture?





    Question 1.65

    Which of the following groups of muscles have their origins and insertions primarily in bone?

    muscles of mastication
    muscles of facial expression
    muscles of the soft palate
    pharyngeal muscles





    Question 1.66

    Which of the following muscles of mastication DIRECTLY influence the contour of the denture?

    medial pterygoid
    temporalis
    masseter
    both 2 and 3
    none of the above





    Question 1.67

    The distolingual extension of the mandibular impression for a complete lower denture is limited by the action of the

    stylohyoid muscle
    medial pterygoid muscle
    lateral pterygoid muscle
    superior constrictor muscle
    none of the above





    Question 1.68

    Which of the muscles of mastication is considered a "guiding" muscle?

    masseter
    temporalis
    medial pterygoid
    lateral pterygoid





    Question 1.69

    Which pair of muscles, acting at the same time, are responsible for a straight forward protrusive movement?

    masseter muscles
    temporal muscles
    auriculotemporal muscles
    external (lateral) pterygoid muscles





    Question 1.70

    What muscle has the greatest effect on the extent and contour of the distobuccal corner of the mandibular denture flange?

    buccinator
    masseter
    temporalis
    mylohyoid
    orbicularis oris





    Question 1.71

    What muscle is primarily responsible for determining the length (superior-inferior) of the mandibular lingual denture flange?





    Question 1.72

    (A) Although the maxillary buccal frenum usually contains no muscle fibers, the notch in the denture must be broad (B) because the movement of the frenum is affected by the buccinator and orbicularis muscles.

    A and B are both true
    A is true but B is false
    A is false but B is true
    A and B are both false





    Question 1.73

    Position and movement of the articular disk are controlled by attachment to the capsular ligament and anteriorly by the fibers of the

    sphenomandibular ligament
    inferior head of the lateral pterygoid muscle
    superior head of the lateral pterygoid muscle
    temporomandibular ligament





    Question 1.74

    Which of the following groups of muscles is influential in molding the lingual border of the final mandibular impression for an edentulous patient?

    hyoglossus, mylohyoid, medial pterygoid, digastric
    mylohyoid, styloglossus, medial pterygoid, depressor anguli oris
    palatoglossus, superior pharyngeal constrictor, mylohyoid, genioglossus
    genioglossus, mylohyoid, middle pharyngeal constrictor, posterior belly of the digastric





    Question 1.75

    The modiolus is formed by fibers from

    levator anguli oris (caninus)
    risorius
    quadratus labii superioris
    quadratus labii inferioris
    depressor anguli oris (triangularis)


    a and b only
    a, c, and d only
    all but a
    a, b, c, and d





    Question 1.76

    The lateral pterygoid muscle functions to

    elevate the mandible
    protrude the mandible
    lift the mandible from the pterygoid plate
    move the mandible to the opposite side


    a and b
    a and c
    a and d
    b and c
    b and d
    c and d





    Question 1.77

    The proximity of the attachment of muscles to the sharp crest of a resorbed, edentulous mandible hides the contour of the bone and often gives the erroneous impression of a small basal seat area. Which muscle or muscles are primarily responsible for this condition?

    mylohyoid
    buccinator
    buccinator and mylohyoid
    buccinator, mylohyoid, and orbicularis oris





    Question 1.78

    Overextension of a mandibular denture base in the DISTOBUCCAL area will cause dislodgement of the denture during function as the result of the action of the

    masseter muscle
    buccinator muscle
    pterygomandibular raphe
    depressor anguli oris muscle
    lateral tendon of the temporalis muscle





    Question 1.79

    Diminished muscle tonus of the buccinator muscle will usually produce

    creases or wrinkles around the mouth
    hollow cheeks
    stretched, expressionless appearance around the mouth
    excessive fullness of the lower part of the cheeks
     
  4. sonibun

    sonibun Senior Member
    7+ Year Member

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    Question 1.80

    In the funciton of mastication, muscle is considered one dominant factor. The closing movement of the mandible is affected by

    synergistic action of lateral pterygoid and depressor muscles
    relaxation of lateral pterygoid muscles
    synergism of retracting portions of the masseter and temporal muscles and the retracting components of the depressors
    contraction of the deep portions of the masseter muscles and posterior fibers of the temporal muscles combining forces with the depressors (digastric and geniohyoid)


    a, b, and c
    a, c, and d
    a, d, and e
    b, c, and e
    b, d, and e





    Question 1.81

    The side of the mandible that is pulled forward during right or left lateral movement is called the ____________________ side.

    lateral
    working
    balancing
    rotating





    Question 1.82

    Which of the following muscles has two separate functions in mandibular movement?

    masseter muscle
    geniohyoid muscle
    lateral pterygoid muscle
    temporal muscle (anterior part)





    Question 1.83

    The closing movement of the mandible is affected by the

    synergistic action of the lateral pterygoid and depressor muscles
    relaxation of the lateral pterygoid muscles
    synergism of retracting portions of the masseter and temporal muscles and the retracting components of the depressors
    contraction of the deep portion of the masseter and the posterior depressors (digastric and geniohyoid)
    contraction of the elevators


    a, b, and c
    a, c, and d
    a, c, and e
    b, c, and e
    b, d, and e





    Question 1.84

    Which of the following drugs can be used to increase salivary output?

    barbiturates
    L-dopa
    Benedryl
    Rauwolfia derivatives (e.g. Reserpine)
    none of the above





    Question 1.85

    True or False

    Increased salivation (sialorrhea) is a less serious problem in denture patients than decreased salivation (xerostomia) and is usually caused by local irritation.





    Question 1.86

    Which of the following may be associated with xerostomia?

    Parkinsonism
    diabetes
    radiation therapy
    1, 2, 3
    1, 3
    2, 3





    Question 1.87

    In the oral examination of a complete denture patient, why should the saliva be evaluated?

    a thin watery saliva does not afford lubricating protection for the mucosa
    a thick ropy saliva interferes with obtaining an optimal impression
    xerostomia hinders adhesion and produces poor retention
    all of the above
    none of the above





    Question 1.88

    True or False

    Sjogren's syndrome is characterized by rheumatoid arthritis, dry eyes, and dry mouth.





    Question 1.89

    Name three systemic conditions which may lead to xerostomia.





    Question 1.90

    Your patient is a 73 year old white female who ONLY leaves her home for appointments with the hairdresser or dentist. Otherwise, she is confined to indoor living. With these facts in mind, which of the following vitamins would you expect to show a deficiency?

    vitamin C
    vitamin B
    vitamin D
    vitamin A





    Question 1.91

    In 1937, House classified patients into four categories on the basis of their personality type. What are the categories?





    Question 1.92

    Saliva is a significant factor in the retention of a denture. Four conditions were identified in lecture as potentially reducing salivary flow. What are they?





    Question 1.93

    What percentage of the population have

    maxillary tori?

    mandibular tori?





    Question 1.94

    List the three t ypes of mucosa found in the oral cavity. Which is the most suitable for providing support for a complete denture?





    Question 1.95

    The four muscles of mastication are?





    Question 1.96

    True or False

    The labial frenum contains no muscle fibers.
     
  5. sonibun

    sonibun Senior Member
    7+ Year Member

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    ???????????????????
     
  6. deejay2

    5+ Year Member

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    hi ,
    pls is it possible to have your anwsers to the prothodontic questions?

    Thank u
     
  7. Dr.Dub

    Joined:
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    Question 1.81

    The side of the mandible that is pulled forward during right or left lateral movement is called the _balancing_ side.

    lateral
    working
    balancing
    rotating

    Question 1.95

    The four muscles of mastication are?

    masseter, temporalis,lateral pterygoid, medial pterygoid

    Question 1.96

    True or False

    The labial frenum contains no muscle fibers. true

    Question 1.46

    Which of the following IS NOT a common finding in the edentulous diabetic patient?

    increased salivation
    mucosal hyperemia
    decreased tolerance to trauma
    poor wound healing

    Question 1.47

    The retromolar pad consists of

    hard, pale, pear-shaped gingival tissue
    typical non-keratinized gingival tissue
    a rounded, bony prominence covered by fat tissue
    a soft pad of glandular tissue and muscle fibers


    Question 1.48

    What is the PRIMARY reason why the denture wearer should remove his/her dentures for at least 8 out of 24 hours?

    to give the soft tissues time to regain resiliency
    to provide for relief and recovery from any irritation or soreness of the tissues
    to avoid continuous pressure on the blood circulation
    to reduce the amount of pressure on the nerves that exit through the various foramina.

    Question 1.49

    When papillary hyperplasia is seen on the palate of a patient wearing a maxillary complete denture, the condition is likely to be associated with

    vitamin deficiency
    hypervitaminosis accompanied with a sudden increase in body weight
    heavy smoking and continuous wearing of the denture
    a hypersensitivity of the patient to the acrylic denture base
    ill fitting dentures, a poor state of oral hygiene, and 24 hour denture wear

    Question 1.50

    A chronically ill-fitting denture may cause an inflammatory fibrous hyperplasia adjacent to its border. This condition is

    traumatic ulcer
    inflammatory papillary hyperplasia
    pseudoepitheliomatous hyperplasia
    epulis fissuratum

    Question 1.55

    The most likely tissue reaction to gross overextension of a complete denture that has been worn for a long time is

    epulis fissuratum
    pyogenic granuloma
    papillary hyperplasia
    giant cell reparative granuloma


    Question 1.56

    The most important reason for treatment of hyperplastic tissue before construction of complete or removable partial dentures is to

    provide a firm, stable base for the denture
    remove tissue that frequently becomes malignant
    improve oral esthetics
    none of the above


    Question 1.58

    A patient in excellent health and wearing complete dentures complains of a burning sensation in the anterior palate. This is most likely due to

    a nicotinamide deficiency
    deflective occlusal contacts
    failure to relieve the area over the incisive papilla
    excessive thickness of the denture in the rugae area


    Question 1.60

    Why should the greatest possible bearing area for a mandibular denture be used?

    to increase tongue space and to improve esthetics
    to provide balanced occlusion and to increase tongue space
    to improve esthetics and to aid in orienting the plane of occlusion
    to withstand the forces of mastication and to increase the effectiveness of the border seal

    Question 1.61

    What muscle lies under the mandibular denture flange in the buccal shelf area? masseter

    Question 1.63

    Which one of the following entities MOST COMMONLY requires surgical correction prior to fabrication of complete dentures?

    denture stomatitis
    inflammatory papillary hyperplasia
    epulis fissuratum
    denture sore mouth
    angular cheilitis

    Question 1.64

    You have made new dentures for a patient. At the 24 recall appointment, he complains of a sore throat. You note that the lingual denture flange extends too far posteriorly. What muscle contraction caused pressure against the overextended denture? mylohyoid ?


    Question 1.66

    Which of the following muscles of mastication DIRECTLY influence the contour of the denture?

    medial pterygoid
    temporalis
    masseter
    both 2 and 3
    none of the above

    Question 1.67

    The distolingual extension of the mandibular impression for a complete lower denture is limited by the action of the

    stylohyoid muscle
    medial pterygoid muscle
    lateral pterygoid muscle
    superior constrictor muscle
    none of the above

    Question 1.68

    Which of the muscles of mastication is considered a "guiding" muscle?

    masseter
    temporalis
    medial pterygoid
    lateral pterygoid

    Question 1.69

    Which pair of muscles, acting at the same time, are responsible for a straight forward protrusive movement?

    masseter muscles
    temporal muscles
    auriculotemporal muscles
    external (lateral) pterygoid muscles

    Question 1.70

    What muscle has the greatest effect on the extent and contour of the distobuccal corner of the mandibular denture flange?

    buccinator
    masseter
    temporalis
    mylohyoid
    orbicularis oris

    Question 1.74

    Which of the following groups of muscles is influential in molding the lingual border of the final mandibular impression for an edentulous patient?

    hyoglossus, mylohyoid, medial pterygoid, digastric
    mylohyoid, styloglossus, medial pterygoid, depressor anguli oris
    palatoglossus, superior pharyngeal constrictor, mylohyoid, genioglossus
    genioglossus, mylohyoid, middle pharyngeal constrictor, posterior belly of the digastric

    Question 1.76

    The lateral pterygoid muscle functions to

    elevate the mandible
    protrude the mandible
    lift the mandible from the pterygoid plate
    move the mandible to the opposite side


    a and b
    a and c
    a and d
    b and c
    b and d
    c and d

    Question 1.78

    Overextension of a mandibular denture base in the DISTOBUCCAL area will cause dislodgement of the denture during function as the result of the action of the

    masseter muscle
    buccinator muscle
    pterygomandibular raphe
    depressor anguli oris muscle
    lateral tendon of the temporalis muscle

    Question 1.79

    Diminished muscle tonus of the buccinator muscle will usually produce

    creases or wrinkles around the mouth
    hollow cheeks
    stretched, expressionless appearance around the mouth
    excessive fullness of the lower part of the cheeks

    Question 1.21

    Surgical removal of a palatal torus is recommended in the event it

    presents undercuts
    impedes the normal movements of the tongue
    acts as a fulcrum area for the denture
    presents any of the above conditions

    Question 1.24

    Which is the most accurate statement regarding the rate of formation and resorption of bone?

    In a child, the rate of bone resorption is greater than the rate of bone formation.
    In a 35 year old man, the rate of bone regeneration is greater than the rate of bone resorption.
    In an aged person, the rate of bone resorption is greater than the rate of regeneration.
    The rate of bone regeneration is constant throughout life.

    Question 1.26

    True or False

    The greater palatine foramen permits passage of the anterior palatine nerves and vessels. The opening is protected sufficiently by soft tissue and no relief of the denture base is neeeded.

    Question 1.32

    The denture base must sometimes be relieved slightly over the zygomatico-alveolar crest because

    the bone is not in a good position for bearing stress
    the mucosal covering is too resilient for stability
    the bone is prominent and the mucosa is very thin
    the muscles in this area would tend to dislodge the denture

    Question 1.33

    In an edentulous patient, the coronoid process may

    limit the distal extension of the mandibular denture
    affect the position and the arrangement of mandibular posterior teeth
    determine the location of the posterior palatal seal of the maxillary denture
    limit the thickness of the denture flange in the maxillary posterior buccal space
    none of the above

    Question 1.42

    The maxillary denture base should be relieved over the area of the incisive foramen because

    the mucosa is thin in this area
    there is danger of pressure on the nerve and blood vessels in the area
    the bony surface in the area is uneven and irregular
    pressure in this area tends to dislodge the denture


    Question 1.5

    What are the primary support areas for the maxillary and mandibular dentures?

    maxillary _______posterior ridge__________________

    mandibular _buccal shelf and retromolar pad____


    Question 1.9

    As resorption progresses, what dimensions do the maxillary and mandibular arches assume?

    the maxillary arch becomes narrower and the mandibular arch broader
    the maxillary arch becomes broader and the mandibular arch narrower
    both arches become narrower
    both arches become broader

    Question 1.10

    The ___________________________ is located between the external oblique line and the residual ridge.

    mylohyoid ridge
    retromylohyoid space
    retromalar space
    buccal shelf


    Question 1.14

    Bone resorption is greater in the mandibular residual ridge than the maxillary. Approximately how much greater?

    2 times greater
    4 times greater
    6 times greater
    8 times greater


    Question 1.14

    Bone resorption is greater in the mandibular residual ridge than the maxillary. Approximately how much greater?

    2 times greater
    4 times greater
    6 times greater
    8 times greater
     
  8. ash23wariya

    ash23wariya Junior Member
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    You have made new dentures for a patient. At the 24 recall appointment, he complains of a sore throat. You note that the lingual denture flange extends too far posteriorly. What muscle contraction caused pressure against the overextended denture?
    Superior constrictor muscle
     
  9. ash23wariya

    ash23wariya Junior Member
    5+ Year Member

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    The distolingual extension of the mandibular impression for a complete lower denture is limited by the action of the
    Superior Constrictor
    (muscles involved with the lingual border are Pataloglossus, Mylohyoid, superior constrictor, genioglossus)
     

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