牙体牙髓病学英文试题.docx
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牙体牙髓病学英文试题.docx
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牙体牙髓病学英文试题
牙体牙髓病学英文试题
一、选择题
1.对牙髓最具有破坏性的是C
A.Nd激光B.CO2激光
C.红激光D.光固化灯
E.牙髓活力电测定仪
2.感染根管常见的优势菌不包括C
A.普氏菌B.放线菌
C.G+细菌D.真杆菌
E.梭形杆菌
3.备洞时易损伤牙髓的因素不包括B
A.施力大B.用冷却剂
C.持续常时间钻磨D.制备深的窝洞
E.不用冷却剂
4.与顽固性根尖周病变和窦道经久不愈可能有关的细菌为B
A.普氏菌B.放线菌
C.G+细菌D.真杆菌
E.梭形杆菌
5.判断牙髓活力最可靠的检查方法是D
A.热诊B.冷诊
C.牙髓活力电测定D.试验性备洞
E.X线检查
6.诊断残髓炎最准确的依据是E
A.叩诊B.牙髓活力测试
C.病史D.症状
E.探查治疗后根管有痛觉
7.急性根尖周脓肿最佳的排脓途径C
A.从牙周间隙排脓B.从颊、舌侧粘膜或皮肤排出
C.经根管从龋洞排脓D.从上颌窦或鼻腔排脓
E.以上都不对
8.感染侵入牙髓组织的途径E
A.深龋B.深牙隐裂
C.深牙周袋D.重度磨耗
E.以上都有可能
9.根尖周炎疼痛最剧烈的阶段是B
A.粘膜下脓肿期B.骨膜下脓肿期
C.浆液期D.根尖脓肿期
E.瘘管形成期
10.上颌第一磨牙的根管形态特点是:
C
A.多数是2根管,即1个颊根管和1个腭根管
B.多数是3根管,即1个近颊、1个远颊和1个腭根管
C.多数是4根管,即2个近颊、1个远颊和1个腭根管
D.多数是4根管,即1个近颊、2个远颊和1个腭根管
E.多数是4根管,即1个近颊、1个远颊和2个腭根管
11.15号标准根管锉的锉尖直径和刃部末端直径分别是:
D
A.0.10mm和0.47mmB.0.10mm和0.45mm
C.0.15mm和0.45mmD.0.15mm和0.47mm
E.以上都不对
12.弯曲根管预备的常见并发症是:
A
A.根管台阶B.药物性根尖周炎
C.牙周组织坏死D.皮下气肿
E.误戏和误咽
13.根管预备的工作长度是指:
D
A.牙的实际长度B.从牙冠参照点到牙本质牙釉质界
C.从牙冠参照点到解剖根尖孔D.从牙冠参照点到生理根尖孔
E.从牙冠参照点到距生理根尖孔0.5~1mm
14.根管成形的标准是:
A
A.根管比原来直径至少扩大3个器械号
B.根尖预备到20号标准器械
C.根管内无大量渗出
D.根管冲洗无混浊液体
E.根管内无严重气味
15.下列哪一项不是牙髓切断术的潜在并发症:
E
A.根髓感染B.根管钙化
C.内吸收D.牙髓坏死
E.髓室穿孔
16.下列哪一项描述不是玻璃离子粘固剂修复术窝洞预备的特点()C
A.玻璃离子粘固剂与牙体组织有化学粘接,对固位形的要求可放宽
B.不必作倒凹、鸠尾等固位形
C.去除龋坏牙本质,必须作预防性扩展
D.窝洞的点、线角圆钝
E.洞缘釉质不作斜面
17.深龋患者激发痛较重,洞底软龋能够彻底去净,治疗方法应选择()C
A.双层垫底,一次完成充填治疗
B.局麻下开髓失活,行牙髓治疗
C.先做安抚治疗,待1~2周复诊时症状消除后,再以双层垫底充填治疗
D.实行活髓切断术
E.间接盖髓、双层垫底,一次完成充填治疗
18.临床上不易查出的继发龋可用下列哪些方法帮助诊断()C
A.探诊B.温度测验
C.X线D.染色法
E.麻醉法
19.深龋备洞时,下列哪项措施是错误的()A
A.洞底平、侧壁直,两相垂直B.去尽腐质
C.保护牙髓D.洞缘线圆钝
E.尽量保留健康牙体组织
20.复合树脂充填后脱落的原因如下,除了()A
A.制备了固位形B.牙齿表面未注意清洁
C.酸蚀后的牙面接触唾液D.未制备洞斜面
E.充填体过薄
21.下列哪项不是窝洞的基本固位形()B
A.侧壁固位B.钉道固位
C.倒凹固位D.鸠尾固位
E.梯形固位
22.制备倒凹是为了:
()B
A.获得良好的抗力形B.获得良好的固位形
C.便于垫底D.便于充填
E.便于放置盖髓剂
23.
类洞充填备洞时,要求:
()A
A.适当的固位形B.严格的抗力形
C.必须做鸠尾D.口小底大
E.底平壁直
24.右下颌第一恒磨牙颊面龋洞破坏越过边缘嵴至咬合面窝沟是:
()A
A.
类洞B.
类洞
C.
类洞D.
类洞
E.
类洞
25.垫底的部位为:
()D
A.仅在髓壁B.仅在轴壁
C.仅在侧壁D.仅在髓壁和轴壁
E.任何壁均可垫
26.下列说法正确的是B
A.男性患龋率略高于女性
B.龋病流行率主要随社会经济模式而变化
C.龋病流行模式依靠地理环境而改变
D.遗传因素对龋病的发生和发展产生重要的影响
E.环境因素对龋病的发生和发展无影响
27.釉质龋损害的4个区不包括A
A.坏死区B.透明带
C.暗带D.损害体部
E.釉质表面层
28.牙本质龋损在光镜下可看到微生物渗透至牙本质小管的区域是B
A.坏死区B.感染层
C.牙本质脱矿区D.硬化区
E.修复性牙本质层
29.静止龋属于B
A.急性龋B.慢性龋
C.继发龋D.牙釉质龋
E.牙骨质龋
30.病程进展快,多数牙在短期内同时患龋的急性龋称为E
A.湿性龋B.慢性龋
C.干性龋D.继发龋
E.猛性龋
31.Whichisthebestwayofpaincontrolforendodontictreatment
ALocalanestheticsBDevitalization
CAnalgesicsDOcclusalreduction
EIncisinganddrainage
32.Whichoneisnotthereasonforuseofrubberdam
AProtectaspirationorswallowingofinstrumentsorirrigants
BEliminatethedentalfearofpatients
CImprovevisibility
DReducedriskofcross-contamination
ELegalconsiderations
33.Thefollowingstatementsarecorrectexcept
ANearlyallcanalsexhibitacertaindegreeofcurvature.
BTheremaybemorethanonecanalswithinoneroot.
CTheapicalforamenusuallyopensattheanatomicalapex.
DApicalconstrictionoccursat0.5~1mmfromtheapicalforamen.
ELateralandaccessorycanalsmightbethecauseoftreatmentfailure.
34.Whichoneiswrongregardingtheprincipleofaccesscavity
AStraight-lineaccess
BConservationoftoothstructure
CUnroofingofthechamberandexposureofpulphorns
D.Facialsurfaceofanteriorteeth
EOcclusalsurfaceofposteriorteeth
35.Theadvantagesofgutta-perchaasafillingmaterialare
AItiscompactibleandadaptsexcellentlytotheirregularitiesandcontourofthecanal
BItisradiopaque
CItcanbeeasilyremovedfromthecanalwhennecessary
DItcanbesoftenedandmadeplasticbyheatorbyorganicsolvents
EAlloftheabove
36.Whichoneisincorrectaboutthecriteriaoftherootcanalisreadytobefilledafterthecompletionofrootcanalcleaningandshaping?
AThetoothisasymptomatic.BThecanaliswet.
CThereisnosinustract.DThereisnofoulodor.
EThetemporaryfillingisintact
37.Whichoneisnotthepathwaysofpulpalandperiapicalinfections?
ADentinaltubulesBPulpexposure
CGingivalDPeriodontalligament
EAnachoresis
38.Tug-backisachievedandthecanalisreadyforfilling
AWhenthegutta-perchahasextendedbeyondtheapex
BWhenthegutta-perchaiseasilyremovedfromtherootcanal
CWhenthegutta-perchaplacedtoapicalconstrictionexhibitsresistanceonremoval
DAftercementation
ENoneofabove
39.Mostrootcanalinfectionsinvolve
Aasingleobligateanaerobicspecies
Bmultipleanaerobicspeciesonly
Cmixedaerobicandanaerobicmicroorganisms
Dmultipleaerobicspeciesonly
Enoneofabove
40.Anabnormallyshapedtooththatmayappearasanextrawidecrown,anormalcrownwithanextraroot,orothercombinationsresultingfromtheunionoftwoadjacenttoothgermsbydentinduringdevelopmentiscalled
AfusedteethBconcresenceofteeth
CgeminatedteethDdilacerationsoftooth
Etaurodontism
41.Whichisn’tthenon-operativetreatmentofdentalcariesinthefollowing?
AapplicationoffluorideBapplicationofAPFgel
CremineralizativetherapyDenameloplasty
Epitandfissuresealing
42.Whichisnottheaimofoperativetherapyonthedentalcariesmanagement?
AToremoveinfecteddentineandprohibitcaries
BToprotectthepulpandavoidpain
CToenhancethestrengthofthetooth
DTofacilitateplaquecontrol
ETorestoretheappearance(ofteeth)anditsfunction
43.Whichisthebeststatementaboutresistanceform
AResistanceformisthedesignofacavityinsuchawaythattheremainingtoothsubstanceandtherestorativematerialcanwithstandmasticatorystress
BThebulkrequiredwilldependontheflexuralstrengthofrestorativematerial.Inthecaseofamalgamitisestimatedthataminimumof1.5-2mmthicknessoftherestorativematerialisrequiredtowithstandmasticatorystress
CIfamarginalridgeisfoundtobetooweakinthecauseofanocclusalcavitypreparation,aClassIIcavitymayhavetobepreparedinstead,soastoeliminatetheweakmarginalridge.Thisisparticularlyindicatedwheretheridgeisonlyofenamelthicknessandunsupportedbysounddentine
DThecavityshouldbedesignedthattheocclusalmarginsofthecavityareinareasnotsubjectedtoexcessiveocclusaltrauma,otherwisetheenamelwallofthecavityand/orthemarginsoftherestorativematerialmayfracture.Inpractice,thismaybeachievedbyplacinganocclusalmarginsofacavityaboutone-quarter(1/4)oftheintercuspaldistance.Note,thateffortsshouldalwaysbemadetoconservesoundtoothtissue
EAlloftheabove
44.Whichisthemostdangerareaoftoothindentalcariesoccurredafteryouhavelearneddentalcaries?
APitsandfissuresonocclusalsurfacesofmolarsandpremolars
BApproximalsurfacesofallteeth.
CGingivalthirdsofallteeth,bothonfacialandlingualsurfaces
DPitsandfissuresnearthelingualofmaxillaryincisorsandcanines(lingualpits)
EPitsandfissuresonthebuccalofmolars
45.Whichisnottrueinthefollowingstatementaboutdentalcariesandmicro-organisms?
ACariescouldbeinducedbyspecificbacteria,especiallymutansstreptococci-group(eg.StreptococcusmutansandStrep.sobrinus).
BTherearecariesoccurredwhenonlyfedacariogenic(highsucrose)diet.
CInthe’60sKeyesinfectedgerm-freeanimalswithknownstrainsofstreptococciandfoundthattheseorganismsweretransferredtouninfectedlittermateswhothenbecamesusceptibletocaries.Hethusdemonstratedthatdentalcarieswaspotentiallyinfectiousandtransmissible.
DWhentalkingaboutcariogenicmicroorganisms,weoftenrefertoStreptococcusmutans,LactobacillusandActinomyces.
EOcclusalcariescouldbepreventedusingpenicillininanimalstudy.
46.Theadvantagesglass-ionomercementinclude
Ahighadhesionproperties
Blowabrasionproperties
Cuseasapermanentrestoration
Dreductionincariesduetofluoridereleasingproperties
Ealloftheabove
47.Whichoneofthestatementsiserrorinretentivepinplacement
Abeavoidedbifurcationandtrifurcationareas
Bparalleltotheexternalsurfaceofthetooth
Cmanypinholesbebetterplacedindifferentplanes
Dthelengthofpinindentineshouldbelongerthanthatofinrestoration
Ebeinthehardestdentine
48.Thereasonsofspontaneouspainaftertoothfillinginclude
AmistakenlyjudgetheconditionofpulpBneglectsmallpulpexposure
CirritationofmaterialstopulpDresidualcariousdentine
Ealloftheabove
49.Whichofthefollowingisacontra-indicationtoendodontictreatment
ADiabetes
BPregnancy
CHIV-infectedpatients
DPatientsufferingfromheartattackwithinpast6months
ECancer
50.Centralcuspismostcommonin
AmaxillarythesecondpremolarsBmaxillarythefirstpremolars
CmandibularthefirstpremolarsDmandibularthesecondpremolars
Emaxillarythesecondmolars
51.Submergeddeciduousteethoccursmostcommonin
AprimarymaxillarythesecondmolarsBprimarymaxillarythefirstmolars
CprimarycentralincisorsDprimarymandibularthesecondmolars
Eprimarymandibularthefirstmolars
52.Inclinicalassessment,whichisnotcorrect?
ASpontaneousdiscomfortatnightprovideaclueasthetoothisinflamed
BVitalometertestsareveryunreliable
CI
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