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قمت بجمع الاسئلة بعد الإجابة النهائية مدعم بالمرجع وشوية شرح..

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راح أنزلها على مجموعات وبهالطريقة يمكن الاستفادة منها بوقت قصير

ما أنسى أشكر:
د.سوسو و د. سامية و SMK و د.فهد و مانشتراوي ود.دوى

وكل من ساهم في هذا الموضوع

المجموعة الأولى :
RESTO:
Q-what is the cavo-surface angle of prep for amalgam resto...
a-30 degree
b- 60 degree
c- 90 degree
d- 130 degree

Q-when you do amalgam finishing.....
a- immediately
b- 24 hours later

when polishing amalgam rest ..... Q-
1- avoid heat generation by using wet polishing paste
2- wait for 24 hours
a- 1&2
b- 2 only
c- 1 only

Q- what is the copper ratio that eliminates gamma phase 2:
a- 2% copper
b- 4% copper
c- 10 % copper
d- 13 % copper
بالنسبة لنسبة copper فهنا نسبة 13 % إلى 30 % تزيل بشكل كامل قاما 2 التي تضعف الأملقم لنقارن:
هذه هي المعادلة في حالة LOW COPPER ALLOY
Silver tin alloy + Mercury=silver-tin alloy + silver-mercury + tin –mercury
في حالة زيادة ال COPPER بنسبة 13 % إلى 30 % فأن المعادلة تتغير والقاما 2 تختفي وهي tin –mercury
إذن الإجابة : D
المرجع:
PHILLIPS' SCIENCE OF DENTAL MATERIALS ,THIRD EDITION
ANUSAVICE PAGE 369 -373

Q- pit and fissure sealants are indicated to prevent dental caries in pits and fissure:
a- in primary teeth
b- in permanent teeth
c- a & b
The purpose of pit and fissure sealent is to penetrate all cracks , pits , and fissure on the occlusal surfaces of both deciduous and permanent teeth .

Q- what is the best instrument used for removing UN SUPPORTED enamel at the gingival wall of class II:
a- chisel
b- hatchet
c- gingival marginal trimmer

المرجع
sturdevant's art and science of operative dentistry 4th ed page 315

Q- teeth that have lost pits and fissure sealant show…
a- the same susceptibility to caries as teeth that have not been sealed
b- higher susceptibility than non sealed teeth
c- lower susceptibility than non sealed teeth
d- the same susceptibility as teeth with full retained sealant
Teeth that have been sealed and then have lost the sealant have had fewer lesions than control teeth.This is possibly due to the presence of tags that are retained in the enamel after the bulk of the sealant has been sheared from the tooth surface. When the resin sealant flows over the prepared surface, it penetrates the finger-like depressions created by the etching solution. These projections of resin into the etched areas are called tags.

PRIMARY PREVENTIVE DENTISTRY - 6th Ed
(2004)


Q-A class IV composite resin restoration should be finished with a:
a. No. 330 Tungsten carbide bur.
b. Mounted stone.
c. 12- fluted carbide bur.
d. Coarse diamond point (stone).
لانه الfinishing does not involve one step with one bur
بس على العموم لقيت هذا الكلام مكتوب هنا.....
The 12-fluted carbide burs (#7901, #7804 ET series) have traditionall
PERIO:
Q- the periodontal tissue compromise which of the following tissue:
a- gingiva and PDL
b- gingiva and PDL & alveolar bone
c- gingiva and PDL & alveolar bone & cementum
d- gingiva and PDL & alveolar bone & cementum & enamel
المرجع
Page 15 clinical periodontology 9th edition

Q- which of the following may cause gingival enlargement
a- phenyntoin (dilantin)
b- cyclosporine
c- nifedipine ( a calcium channel blocker)
d- aspirin
e- none of the above
المرجع
clinical periodontology 9th edition page 65
a- phenyntoin is anti convulsant agent
b- cyclosporine is immunosuppressive drug
الاسبيرن ما كان مذكور من ضمنهم بس اول ثلاثه اكيد يعملون enlargement


Q- the function of the periodontal ligament include
a- mechanical function
b- formative function
c- nutritive function
d- sensory function
e- all of the above
المرجع
clinical periodontology 9th edition page 39

Q- periodontally involved root surface must be root planed to
a- remove the attached plaque and calculus
b- remove the necrotic cementum
c- change the root surface to become biocompatible
d- all of the above
e- a & b only

الخيار a &c اكيد صح بس b فيه لبس لانه ما قال انه السيمنتم necrotic بس قال يصير عليه toxic substance فهل نعتبرها صح او خطأ ؟
المرجع
clinical periodontology 9th edition page 631-632
SURGERY
Q- pt on treatment with steroids are placed on antibiotic after oral surgical procedure because
a- the pt is more susceptible to infection
b- antibiotics are synergistic to steroids
c- antibiotic inhibits kerksheimer reaction
d-antibiotic protect the pt from steroid depletion

طبقا للمصدر فأن المرضى الذين يأخذون ستيرويد معرّضين للعدوى أكثر من غيرهم وهذا متوقّع لأن الستيرويد يضعف من المناعة ! لذا من الأفضل إعطاء المضاد الحيوي لهم مع الستيرويد عند مضاعفة الجرعة ! حيث ان المضاد الحيوي سيساعد في حالة أي عدوى بكتيرية .
( Antibiotics should be prescribed as adjunctive therapy for pt on steroid therapy )
المرجع

Clinician's Manual of Oral and Maxillofacial Surgery
by Paul H. Kwon (Editor), Daniel M. Laskin ( second Editor
page 273

kerksheimer reaction!!!*
عدنا بعد بحث في جذور كلمة kerksheimer reactionوالي كما توقعنا جميعا أن هناك خطأ املائي في الكلمة والسليمـ أن الكلمة الصحيحة هي :
Herxheimer reaction
وله اسم ثاني
Jarisch-Herxheimer
سبب التسمية :
بكل بساطة كانت أسماء عوائلهم !حيث العلماء الذين اخترعوا هذا REACTION
عالم ألماني اسمه
Karl Herxheimer, a German dermatologist
و عالم ثاني
Adolf Jarisch, an Austrian dermatologist
وهذا التفاعل ماهو إلا عبارة عن ردّة فعل عكسية يعني بدال المضاد مايعالج يصير العكس
occurs when large quantities of toxins are released into the body as bacteria (typically Spirochetal bacteria) die, due to antibiotic treatment.
Typically the death of these bacteria and the associated release of endotoxins occurs faster than the body can remove the toxins via the natural detoxification process performed by the kidneys and liver. It is manifested by fever, chills, headache, myalgia (muscle pain), and exacerbation of skin lesions. Duration in syphilis is normally only a few hours but can be much longer in other diseases. The intensity of the reaction reflects the intensity of inflammation present.
The Herxheimer reaction has shown an increase in inflammatory cytokines during the period of exacerbation, including tumor necrosis factor alpha, interleukin-6 and interleukin-8
RADIO:
Q- early squamous cell carcinoma of oral cavity present as:
a- vesicle
b- sessile mass
c- a red plaque
d- an ulcer
e- a white cauliflower like lesion
المرجع
white and pharaoh, oral radiology principles and interpretation,4th ed, 423

white or red irregular patchy lesion,with time it exhibit central ULCERATION

Q- which of the following lesions has more tendency to show well defined multilocular radiolucency:
a- lateral periodontal cyst
b- squamous cell carcinoma of jaw bones
c- primordial cyst
d- ameloblastoma
e- osteomylitis of the mandible
المرجع
white and pharaoh, oral radiology principles and interpretation,4th ed , page 386-389

Q-Ankylosis:
a- no PDL
b- caused by trauma
c- extracted surgically
d- all of the above

ما عندي مرجع لهذي بس a صح....و b برضو صح لانه ممكن الtrauma تسببها...و c صح كمان...
الي عنده اعتراض يدلي بدلوه لو سمحتو.........

Q- firm, fixed neck nodes are most to be detected in association with:
a- an ameloblastoma
b- a basal cell carcinoma
c- an odontogenic fibroma
d- a squamous cell carcinoma
المرجع
Oral pathology,clinical pathologic correlations,Regezi,3rd edition page 498-500
كاتب بالحرف................
squamous cell carcinoma , unlike basal cell carcinoma , this neoblasm has significant potential to metastasize to regional lymph nodes and beyond
Basal cell carcinoma are generally slow growing and rarely metastatic

Q- radiographic diagnosis of bilateral expansile radio opaque areas in the canine-premolar region of the mandible is:
a-hematoma
b- remaining roots
c- tours mandibularis
d- internal oplique ridge
e- genial tubercle
المرجع....
white & pharoah, oral radiology principles &interpretation 4th ed, page 382

ORAL MED.
Q- the following medical conditions may precipitate a syncope:
1-hypoglycemia
2- mild hyperglycemia
3- anti hypertensive drugs with ganglionic blocking agent
4- anti depressant therapy

a- 1 only is correct
b- 1& 2 are correct
c- 2,3 &4 are correct
d-1,2,3 &4 are correct
اعراض ال ketoacidosis
Symptoms:
! Gradual onset
! Dry, flushed skin
! Dry mouth, intense thirst
! Deep, labored breathing
! Confusion
! Disoriented
! Stuporous
! Sweet breath
! Coma

NB. If a diabetic pt. collapse, assume hypoglycemia unless you are certain the cause is
hyperglycemia. You will not worsen any hyperglycemia by giving glucose or glucagons, but
failure to raise the blood sugar level in hypoglycemia may be potentially fatal!
فإذا ما كان الhyperglycemia يسبب syncope ما كان قال
assume hypoglycemia unless you are certain the cause is hyperglycemia
الخلاصه..1و3و4 اكيد صح...2ممكن يسبب الsyncope ..فـــ الجواب الاصح الى الان هو D

Q- one of the main features of acute herpetic gingivostomatitis is the ulcers are confined to the attached gingival and hard palate:
a- true b- false
REF: herpetic gingivostomatitis. Typical symptoms include .......... Patients develop oral lesions of the attached and movable mucosal surfaces in which vesicles develop and quickly break down, coalescing to form large painful ulcerations
COMMUNITY:
Q- dental carries is an endemic disease "means that the disease is:
a- occurs clearly in excess of normal expectancy=pandemic dis
b- is habitually present in human population
c- affect large number of countries simultaneously
d- exhibit a seasonal pattern
المرجع من النت....
endemic disease: An infectious disease that is present in the community at all times but normally at low frequency

Q- in countries with higher annual population growth rates, the need for community –based preventive programs would be greater for:
a- dental caries
b-periodontal disease
c- dentofacial anomalies
d- dental floozies
ما عندي مرجع بس بالمنطق..........
اكييييييييييد مو dental floozies..........
والprevention of dental caries اكيد اهم من الperiodontal disease و ال dentofacial anomalies
MATERIAL
Q-Compomer restorative materials are:
a. Glass ionomer with polymer components
b. Resin systems with fluoride containing glasses
c. Composite resin for cervical restorations only
Compomers, which were introduced into dentistry in the mid-1990s, are polyacid-modified resin-based composites that contain 72 percent (by weight) strontium fluorosilicate glass, with an average particle size of 2.5 micrometers. The presence of both acid functional monomer and basic ionomer-type glass attracts moisture into the material, which can trigger a reaction that releases fluoride and buffers acidic environments
معناها mainly GI مضاف له polymer

Q-A glossy finish is best retained on a:
a. Micro filled composite resin restoration.
b. Macrofilled resin restoration.
c. Hybrid composite resin restoration.
d. Fiber re -inforced composite resin restoration

المرجع..........
the surface of a microfilled composite was significantly smoother than the hybrid composite when polished
بس ما قالو شي عن الFiber re -inforced composite resin restoration

مرجع آخر Fundamentals of operative dentistry, a contemporary approach, 2nd edition, Page 237
Microfilled resin composite can be polished to the highest luster and smoothest surface of all the resin composites