Dental Occlusion Test

2 votes, 5 avg

You will have 60 minutes to complete all the questions. After the timer reaches 60 minutes, the exam will end and be saved automatically. Good luck! *Fingers crossed*

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1 / 60

Masticatory system in general consists of three main component :

a. Teeth, Periodontal tissue and Enamel

b. Teeth, Tongue and Enamel

c. Teeth, Periodontal tissue and Occlusion

d. Teeth, Tongue, and check

2 / 60

Occlusal disease is the deformation or disturbances of function of any structure with in the masticatory
system that are in disequilibrium with a harmonious interrelationship between:

a. TMJs, Masticatory muscle, and periodontium

b. TMJs, Masticatory muscle, and alveolar bone

c. TMJs, periodontium and alveolar bone

d. TMJs, Masticatory muscle, and occluding surface of the teeth

3 / 60

The role of functional cusps is :

a. None of all above

b. Quiding cusps

c. Sharing cusps

d. Main role of mastication

4 / 60

What are the phases of the chewing cycle?:

a. Opening phase and occlusal phase

b. Opening Phase and Closing phase

c. Closing phase and intercuspal phase

d. Opening phase, closing phase and occlusal or intercuspal phase

5 / 60

តើអ្វីទៅជា Plan d’occlusion?

a. ជា Plan Vestical

b. ជាប្លង់កាត់តាម Bords Libres និង បណ្ដា កំពូល Cuspides នៃធ្មេញលើ

c. ជា Plan Horizontal

d. ជាប្លង់កាត់តាម Lingne median

6 / 60

The incisal edges and the incisal thirds of facial surfaces of mandibular incisors and canines generally oppose lingual surfaces of maxillary incisor and canines:

a. At the junction of middle and cervical thirds

b. Within the incisal thirds

c. At the linguo cervical ridges

d. Immediately incisal to cingulam

7 / 60

Name of the line in the picture below :

a. Functional cusp

b. Curve of Wilson

c. Curve of spee

d. Non-centric cusp

8 / 60

តើមួយណាជារូបមន្ដនៃច្បាប់ញូតុនទី២?

a. F=m×g

b. F=w÷d

c. F=μ÷d

d. F=m×a

9 / 60

Which one is INCORRECT statement of Medial Pterygoid muscle:

a. Action: elevate and protract the mandible

b. is also called Internal Pterygoid

c. Is the strongest muscle in our bodies

d. all of above

10 / 60

តើ Biomecanic ជាអ្វី?

a. ជាការសិក្សាពីសន្លាក់

b. ជាការសិក្សាពីមាត់

c. ជាការសិក្សាពីប្រព័ន្ធចលនានៃការទំពារ

d. ជាការសិក្សាពីក្រាស់ធ្មេញ

11 / 60

The INCORRECT statement of Maxillary fist molar:

a. Eruption at the age of 6 years old

b. Has 2 root

c. Lingual functional cus

d. Tubercal Galabelly

12 / 60

Maxillary facial and mandibular lingual cusps require sufficient occclusal length and horizontal overlap for_____________?

a. Centric stability

b. Esthetics

c. Soft tissue protection

d. Chewing efficiency

13 / 60

Many problems of discomfort are related to occlusal disharmony for example teeth that are sensitive to hot
or cold after a restoration is placed are frequently symptomatic because:

a. a deflective incline interference or a vertical overload from a new restoration

b. a deflective incline interference or a vertical under load from a new restoration

c. of a non-smooth restoration or a vertical overload from a new restoration

d. of a non-smooth restoration or a vertical under load from a new restoration

14 / 60

What are the parts of ecentric occlusion?:

a. Centric occlusion

b. Masseter

c. None of all

d. Functional and Non-functional

15 / 60

កម្លាំងទំពារជាអ្វី?

a. ជាសកម្មភាពរបស់សាច់ដុំទំពារ

b. ជាចលនា

c. ជាបុព្វហេតុដើមនៃចលនាទំពារ

d. ជាសកម្មភាពនៃឆ្អឹងថ្គាម

16 / 60

តើកម្លាំងឆ្លើយតបស្ថិតនៅទីណា?

a. នៅលើឆ្អឹងថ្គាមលើ

b. នៅលើសន្លាក់ឆ្អឹងថ្គាម

c. នៅលើសាច់ដុំទំពារ

d. នៅលើឆ្អឹងថ្គាមក្រោម

17 / 60

តើលើក Akerman អោយ Confficient ចំពោះធ្មេញ Canine ប៉ុន្មាន?

a. ៣-៥

b. ៣-៤

c. ៤-៥

d. ២-៤

18 / 60

តើ Coeficients នៃថ្គាមតូចទីពីរមានប៉ុន្មាន?

a. ៤

b. ៦

c. ៣

d. ៤-៦

19 / 60

The key to occlusion is:

a. Maxillary primary second molar

b. Maxillary primary first molar

c. Maxillary permanent second molar

d. Maxillary permanent first molar

20 / 60

In centric occlusion, the cusp tip of the maxillary canine is in alignment with which mandibular tooth_____________?

a. Distal ridge of the cusp of mandibular canine

b. Mesial ridge on the facial cusp of mandibular first premolar

c. Facial embrasure of canine and premolar

d. Incisal embrasure of canine and premolar

21 / 60

តើសាច់ដុំអ្វីដែលធ្វើអោយចង្ការរុញទៅមុខ?

a. Diduteur

b. Elevateur

c. Abaisseur

d. Propulseur

22 / 60

តើធ្មេញដែលមានសកម្មភាពរស់រវើកបានដោយសារអ្វី?

a. Alvéolaire

b. ligament

c. tendon

d. articulation

23 / 60

The functional cusps of Upper anterior teeth located at :

a. Lingual area

b. Buccal cusp

c. Mesial area

d. Distal area

24 / 60

The very best, most naturally beautiful esthetics does not require guesswork if :

a. the relationship between anatomic harmony and functional harmony is not understood

b. patient’s satisfaction is well understood

c. the relationship between materials of choice is understood

d. the relationship between anatomic harmony and functional harmony is understood

25 / 60

តើលោក Akerman អោយ Confficient ចំពោះធ្មេញ Dent de sagesse ប៉ុន្មាន?

a. ៣-៤

b. ៥-៦

c. ៤-៥

d. ២-៥

26 / 60

A common cause of hypersensitivity is occlusal overload especially on a vital tooth that can be :

a. Pulp cavity disease

b. None of all

c. Chronic pulpitist

d. Pulpal hyperemia or tooth creak

27 / 60

What is the classification of occlusion (based on mandibular position)?:

a. Centric occlusion

b. Centric occlusion and centric relation

c. Centric relation

d. Centric and Ecentric occlusion

28 / 60

Distobuccal cusp of 27 falls into:

a. None of the above

b. Embrasure of 36 & 37

c. Embrasure of 37 & 38

d. Mesial pit of 37

29 / 60

The masticatory system, a functional unit of the body is primarily responsible for:

a. Chewing, speaking and swallowing

b. Chewing, opening and swallowing

c. Speaking, swallowing and opening

d. ewing, closing and speaking

30 / 60

In normal occlusion, with which groove / surface of the permanent mandibular first molar does the mesiobuccal cusp of the permanent maxillary first molar occlude:?

a. Mesiobuccal surface

b. Distobuccal groove

c. Transverse groove

d. Mesial Surface

31 / 60

តើ Hinge axis ជាបន្ទាត់យ៉ាងដូចម្ដេច?

a. Ala នៃច្រមុះ

b. ផ្ទៃខាងលើនៃរន្ធត្រចៀកឬាំងពី

c. Tragus ទាំងពីរ

d. កាត់តាមចំណុចកណ្ដាលនៃ Condyle ទាំងពីរ

32 / 60

In the intercuspal position, the lingual cusp of maxillary 2nd premolar contacts the:

a. Mesial fossa of mandibular 1st molar

b. Distal marginal ridge of mandibular 1st premolar

c. Distal fossa of mandibular 2nd premolar

d. Distal marginal ridge of mandibular 2nd molar

33 / 60

Curve passing through the buccal and lingual cusp tips of the mandibular buccal teeth is:

a. Monson curve

b. Catenary curve

c. Wilson curve

d. Curve of Spee

34 / 60

Dental occlusion is defined:

a. as the contact relation of the teeth in function or parafunction

b. as the contact relation of the teeth in function

c. as the contact relation of the teeth in parafunction

d. as the contact relation of the articular in function or parafunction

35 / 60

When a molar has no opposing tooth, it can become_______________?

a. Extruded

b. Intruded

c. Retruded

d. Protruded

36 / 60

In the intercuspal position, the lingual cusp of maxillary 2nd premolar contacts the______________?

a. Mesial fossa of mandibular 1st molar

b. Distal marginal ridge of mandibular 2ndmolar

c. Distal fossa of mandibular 2ndpremolar

d. Distal marginal ridge of mandibular 1st premolar

37 / 60

តើ Plan sagittal មានស្ថានភាពដូចម្ដេច?

a. ចំកណ្ដាលពីមុខទៅក្រោយ

b. ជាចំណែកមុខ និង ក្រោយ

c. ពីឆ្វេងទៅស្ដាំ

d. ជាចំណែកលើ និង ក្រោម

38 / 60

Any Condition that prevents thorough cleaning of any tooth surface or portion of the sulcus should be
consider as a :

a. Causative factor

b. Microtrauma

c. Contributive factor

d. Microorganism

39 / 60

តើ Plan de camper និង Plan d’occlusion មានស្ថានភាពយ៉ាងដូចម្ដេច?

a. កែងនិងគ្នា

b. ស្របគ្នា

c. គ្មានចម្លើយត្រឹមត្រូវ

d. ប្រសព្វគ្នា

40 / 60

តើសាច់ដុំអ្វីដែលធ្វើអោយមាត់បើក?

a. Elevateur

b. genio – hyoidien

c. pterygoidien

d. Diduteur

41 / 60

What does the muscle A in the picture called?:

a. Lateral Pterigoid

b. Spenomandibular

c. Masseter

d. Temporalis

42 / 60

The inner aspect of the capsule line :

a. Mandibular fossa

b. Articular disc

c. Lower join cavity

d. Synovial membrane

43 / 60

Maximum contact between occlusal surfaces, of maxillary and mandibular teeth occur during________________?

a. Laterotrusive contacts

b. Rest position

c. Centric occlusion

d. Protrusive contacts

44 / 60

What is A?

a. Mandibular fossa

b. The articular capsule

c. Mandibular condyle

d. The articular eminence

45 / 60

តើ Luxations Temporo-mandibulaire មានផលលំបាកអ្វី?

a. ការចុករោយ សាច់ដុំ Temporal

b. ការឈឺចាប់ក្នុងក្រាសធ្មេញលើ

c. ការឈឺចាប់ នៅក្នុងក្រាសធ្មេញក្រោម

d. ការចុករោយ ក្នុងសន្លាក់ឆ្អឹងថ្គាម

46 / 60

The functional cusps of lower posterior teeth located at :

a. Distal area

b. Mesial area

c. Lingual cusp

d. Buccal cusp

47 / 60

Patient lost their tooth in 2 ways:

a. Physical injury

b. Microorganism and Trauma (microtrauma or physical injury)

c. Microtrauma and Macrotrauma

d. Microorganism and Microtrauma

48 / 60

TMJ articulation anatomy consist of :

a. 6 main parts

b. 4 main parts

c. 5 main parts

d. 3 main parts

49 / 60

The 4 main Muscle of Mastication muscles are:

a. Temporalis, Medial pterigoid, Lateral pterigoid and Hyoid

b. Masseter, Temporalis, Medial pterigoid and Lateral pterigoid

c. Masseter, Temporalis, Medial pterigoid and Sphenomandibular

d. Masseter, Temporalis, Sphenomadibular and Posterior digastric

50 / 60

If a permanent first molar is lost, the permanent second molar drifts to the______________?

a. Distal side

b. Buccal side

c. Mesial side

d. Lingual side

51 / 60

តើ Plan sagittal មួយចែកសារពាង្គកាយយ៉ាងដូចម្ដេច?

a. ៣ចំណែកស្មើគ្នា

b. ចំណែកឆ្វេង និង ស្ដាំ

c. ចំណែកមុខ និង ក្រោយ

d. ចំណែកលើ និង ក្រោម

52 / 60

តើ Les muscles masticateurs មានមុខងារយ៉ាងដូចម្ដេច?

a. ធ្វើចលនាទំពារនៃថ្គាមក្រោម

b. ធ្វើចលនានៃអណ្ដាត

c. ធ្វើចលនាទំពារនៃថ្គាមលើ

d. ធ្វើចលនានៃបបូរមាត់

53 / 60

The functional cusps of upper posterior teeth located at :

a. Buccal cuspBuccal cusp

b. Lingual cusp

c. Mesial area

d. Distal area

54 / 60

Types of Cusps:

a. Non-centric cusp

b. Functional cusp

c. Functional cusp and Non-centric cusp

d. None of all

55 / 60

The incisal edges and the incisal thirds of facial surfaces of mandibular incisors and canines generally oppose lingual surfaces of maxillary incisor and canines _____________?

a. At the junction of middle and cervical thirds

b. Immediately incisal to cingulam

c. Within the incisor thirds

d. At the linguo cervical ridges

56 / 60

Masticatory is a true system because:

a. It can work alone

b. All of above

c. Non all of above

d. It can’t work alone

57 / 60

Facial occlusal line in the maxillary arch is formed by:

a. Stamp cusps

b. Supporting cusps

c. Non-supporting cusps

d. Centric holding cusps

58 / 60

There are good reasons why general practitioners should learn principles of occlusal harmony for :

a. Predictable diagnosis, patient uncomforted, restoration longevity, occlusal stability, and accurate treatment plant.

b. Predictable diagnosis, patient uncomforted, restorative longevity, occlusal stability and non-accurate treatment plant.

c. Predictable diagnosis, patient comfort, restoration longevity, occlusal stability, and non-accurate treatment plant.

d. Predictable diagnosis, patient comfort, restoration longevity, occlusal stability, and accurate treatment plant.

59 / 60

This picture show:

a. Erosion

b. Attrition

c. Abrasion

d. non off all above

60 / 60

តើលោក Akerman អោយ Confficient ចំពោះធ្មេញ Prémolaire ប៉ុន្មាន?

a. ៣-៤

b. ២-៤

c. ៤-៥

d. ៣-៥

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត