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*

The timer has been reached. The exam has now been terminated and saved.

1 / 60

The use of long–term retainers to maintain post–orthodontic tooth alignment could be dramatically reduced
if :

a. Tooth in perfect alignment

b. Occlusal principles were better understood

c. Perfect ligament and good retainer

d. it is a good retainer

2 / 60

How many phases of the Chewing cycle?:

a. 5

b. 2

c. 3

d. 4

3 / 60

Maxillary facial and mandibular lingual cusps require sufficient occlusal length and horizontal overlap for:

a. Centric stability

b. Soft tissue protection

c. Chewing efficiency

d. Esthetics

4 / 60

តើប្រដាប់ទំពារមានប៉ុន្មានផ្នែកសំខាន់ៗ?

a. ៣

b. ៥

c. ២

d. ៤

5 / 60

តើលោក Akerman អោយ Confficient ចំពោះធ្មេញ Dent de sagesse ប៉ុន្មាន?

a. ៣-៤

b. ៤-៥

c. ២-៥

d. ៥-៦

6 / 60

តើតាមខ្នាតអន្ដរជាតិ កម្លាំងវិចទ័រគិតជាអ្វី?

a. សេះ

b. ញូតុន (N)

c. Kg

d. វ៉ាត់

7 / 60

Elevation movement of mandible caused by :

a. Posterior fiber of temporal, deep part of masseter, genoihyoid and digastric

b. Temporalis, masseter, medial pterygoid

c. Lateral Pterygoid and Masseter

d. Lateral pterygoid assisted by Medial pterygoid

8 / 60

Achieving functional harmony in an environment of optimally healthy teeth, joints, periodontium, and
musculature, and in combination with the best possible esthetic result, is the essence of :

a. Patient Satisfaction

b. Complete dentistry

c. All of above

d. Occlusal concept

9 / 60

Lytle was the first to introduce the term occlusal disease. At that time, he defined it as the process resulting
in the noticeable loss or :

a. destruction of the occluding surfaces of the teeth.

b. destruction of the lingual surfaces of the teeth.

c. destruction of the buccal surfaces of the teeth.

d. destruction of the mesial surface of the teeth.

10 / 60

The 4 main Muscle of Mastication muscles are:

a. Masseter, Temporalis, Medial pterigoid and Lateral pterigoid

b. Temporalis, Medial pterigoid, Lateral pterigoid and Hyoid

c. Masseter, Temporalis, Medial pterigoid and Sphenomandibular

d. Masseter, Temporalis, Sphenomadibular and Posterior digastric

11 / 60

The role of Non-functional cusps is :

a. guiding cusp

b. All above

c. food sharing

d. protection from check biting

12 / 60

Facial occlusal line in the maxillary arch is formed by_______________?

a. Supporting cusps

b. Non- supporting cusps

c. Centric holding cusps

d. Stamp cusps

13 / 60

តើកម្លាំងអ្វីដែលធ្វើអោយថ្គាមក្រោមមានចលនា?

a. កម្លាំង Physio mechanic

b. កម្លាំងអតិបរមា

c. កម្លាំងមធ្យម

d. កម្លាំងឆ្លើយតប

14 / 60

3 point from Goal of complete dentistry :

a. Stable TMJs, Stable occlusion, and Comfort of function

b. Stable TMJs, Stable occlusion, and occlusion class II

c. Stable TMJs, No pain, and Comfort of function

d. Stable occlusion, No pain and Stable TMJs

15 / 60

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

a. Centric relation

b. Centric occlusion

c. Centric and Ecentric occlusion

d. Centric occlusion and centric relation

16 / 60

តើ Biomecanic ជាអ្វី?

a. ជាការសិក្សាពីមាត់

b. ជាការសិក្សាពីសន្លាក់

c. ជាការសិក្សាពីក្រាស់ធ្មេញ

d. ជាការសិក្សាពីប្រព័ន្ធចលនានៃការទំពារ

17 / 60

Dental occlusion is defined:

a. as the contact relation of the teeth in parafunction

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

c. as the contact relation of the teeth in function

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

18 / 60

Name of the line in the picture below :

a. Functional cusp

b. Non-centric cusp

c. Curve of spee

d. Curve of Wilson

19 / 60

What does the muscle A in the picture called?:

a. Temporalis

b. Lateral Pterigoid

c. Masseter

d. Spenomandibular

20 / 60

One noticeable characteristic of Abrasion which cause by tooth brushing is :

a. mainly seen on the lingual surface at cervical of the tooth

b. mainly seen on the periodontium of the tooth

c. mainly seen on the buccal surface at cervical of the tooth

d. mainly seen on the occlusal surface of the tooth

21 / 60

Erosion is tooth surface loss due:

a. to chemical or electrochemical action. It can be only endogenous.

b. to chemical or electrochemical action. It can be endogenous or exogenous.

c. missed handling of tooth brushing

d. tooth-to-tooth friction

22 / 60

Teeth with combination of functional mobility and widened periodontal ligament space were found to
have:

a. Deeper probing depth, no clinical attachment loss and less radiographic bone support and non-mobile teeth

b. Normal probing depth, more clinical attachment loss and less radiographic bone support and non-mobile teeth.

c. Deeper probing depth, more clinical attachment loss and less radiographic bone support and non-mobile teeth.

d. Deeper probing depth, no clinical attachment loss and Normal probing depth

23 / 60

The #1 factor associated with discomfort within masticatory system structures. This includes
pain/discomfort in the musculature, the teeth, and the region of the temporomandibular joints (TMJs). :

a. Occlusal disease

b. Temporomandibular disorder (TMD)

c. Articular pain

d. Muscle pain

24 / 60

Most of the problems that lead to compromised treatment results could be avoided:

a. if requirements for occlusal stability were not adhered to the treatment stage

b. if requirements for occlusal stability were not adhered to the treatment planning stage

c. if requirements for occlusal stability were adhered to the treatment planning stage

d. if requirements for occlusal stability were adhered to the treatment stage

25 / 60

តើលោក Akerman អោយ Confficient Incisive ប៉ុន្មាន?

a. ៣

b. ៤

c. ២

d. ១

26 / 60

Attrition is wear due to:

a. Occlusal function

b. Chemical erosion

c. missed handling of tooth brushing.

d. tooth-to-tooth friction

27 / 60

តើកម្លាំងឆ្លើយតបស្ថិតនៅទីណា?

a. នៅលើឆ្អឹងថ្គាមលើ

b. នៅលើឆ្អឹងថ្គាមក្រោម

c. នៅលើសាច់ដុំទំពារ

d. នៅលើសន្លាក់ឆ្អឹងថ្គាម

28 / 60

Which is a true statement about Temporalis muscle? :

a. Anterior fiber elevate the mandible while the posterior fiber retract the mandible

b. Is the strongest muscle in our bodies

c. Is the weakness muscle in our bodies

d. Origin: the ape surface of coronoid process and anterior border of the ramus

29 / 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. Incisal embrasure of canine and premolar

d. Facial embrasure of canine and premolar

30 / 60

កម្លាំងទំពារជាអ្វី?

a. ជាសកម្មភាពរបស់សាច់ដុំទំពារ

b. ជាបុព្វហេតុដើមនៃចលនាទំពារ

c. ជាសកម្មភាពនៃឆ្អឹងថ្គាម

d. ជាចលនា

31 / 60

តើធ្មេញ Antagoniste នឹង ធ្មេញបាត់ មានសភាពយ៉ាងដូចម្ដេច?

a. វាលូតស្មើរគ្នា

b. វាទាបជាង

c. វាលូតវែងជាង

d. វាលូតវៀចខុសគេ

32 / 60

The inner aspect of the capsule line :

a. Mandibular fossa

b. Articular disc

c. Synovial membrane

d. Lower join cavity

33 / 60

Masticatory system consists of net:

a. 3 main components

b. 1 main component

c. 2 main components

d. 4 main components

34 / 60

Muscles Abaisseurs គឺជាសាច់ដុំ:

a. លើកថ្គាមក្រោមឡើងលើ

b. ទំលាក់ថ្គាមចុះក្រោម

c. រុញចង្កោមទៅមុខ

d. រុញចង្គោមទៅក្រោយ

35 / 60

When a molar has no opposing tooth, it can become:?

a. Extruded

b. Protruded

c. Retruded

d. Intruded

36 / 60

Attrition wear of anterior teeth is one of the most common untreated problems to solve this problem we
have to :

a. look at anterior teeth where deflective incline interferences to centric relation.

b. look at maxillary tooth where deflective incline interferences to centric occlusion

c. look at posterior teeth where deflective incline interferences to centric relation. This forces the lower anterior teeth forward into a collision with the upper anterior teeth.

d. look at mandibular tooth where deflective incline interferences to Ecentric relation

37 / 60

ក្រាសធ្មេញ និង មាត់មានសារះប្រយោជន៍ប៉ុន្មានយ៉ាងធំៗ?

a. ៣ យ៉ាង

b. ៦ យ៉ាង

c. ២ យ៉ាង

d. ៥ យ៉ាង

38 / 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. At the linguo cervical ridges

d. Within the incisal thirds

39 / 60

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

a. Protruded

b. Intruded

c. Retruded

d. Extruded

40 / 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. Microorganism

c. Microtrauma

d. Contributive factor

41 / 60

តើតាមទ្រឹស្ដីរបស់លោក Duchange Coefficient របស់ Incisive Central Superior ប៉ុន្មាន?

a. ៣

b. ៤

c. ២

d. ៤-៦

42 / 60

Destroyed Dentition is one of the most demanding occlusal problems to treat, delay of treatment might
result in :

a. wear, fractured maxillary and mandibular teeth,

b. wear, elongated alveolar processes and fractured mandibular teeth

c. severe wear, fractured maxillary and mandibular teeth, and elongated alveolar processes

d. severe wear, fractured maxillary, and elongated alveolar processes

43 / 60

តើ Coefficients នៃធ្មេញថ្គាមផុតក្រោមមានប៉ុន្មាន?

a. ៣

b. ៤

c. ៦

d. ៤-៦

44 / 60

In occlusion the teeth have_______________?

a. Surface to surface contact

b. Cusp to cusp contact

c. Marginal contact

d. Edge to edge contact

45 / 60

Attrition wear lower anterior teeth might cause by :

a. Over conturing of prothesis or any restoration occlusal surface of upper maxillary incisor.

b. Non all of above

c. Over conturing of prothesis or any restoration on the palatal surface of upper maxillary incisor.

d. Over conturing of prothesis or any restoration on the buccal surface of upper maxillary incisor.

46 / 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. Transverse groove

b. Mesial Surface

c. Mesiobuccal surface

d. Distobuccal groove

47 / 60

តើ Plan sagittal មួយចែកសារពាង្គកាយយ៉ាងដូចម្ដេច?

a. ចំណែកឆ្វេង និង ស្ដាំ

b. ចំណែកលើ និង ក្រោម

c. ចំណែកមុខ និង ក្រោយ

d. ៣ចំណែកស្មើគ្នា

48 / 60

What is symptom?:

a. Symptom is what a patient see.

b. Symptom is what a doctor see.

c. Symptom is what a patient experience

d. Symptom can’t defined as one of the characters of disease.

49 / 60

Patients lose their teeth in:

a. 1 way

b. 4 ways

c. 3 ways

d. 2 ways

50 / 60

The functional cusps of upper posterior teeth located at :

a. Mesial area

b. Lingual cusp

c. Distal area

d. Buccal cuspBuccal cusp

51 / 60

តើ Muscles elévateur ជាសាច់ដុំដែលមានមុខងារដូចម្ដេច?

a. រុញចង្គោមទៅក្រោយ

b. ទំលាក់ថ្គាមចុះក្រោម

c. រុញចង្គោមទៅមុខ

d. លើកថ្គាមក្រោមឡើង

52 / 60

តើ Plan horizontal ជាប្លង់ដូចម្ដេច?

a. ដេក

b. ទ្រេត

c. ស្របនឹងប្លង់ Sagittal

d. ឈរ

53 / 60

Stress from microtrauma results from:

a. All of above

b. Accident and head injury

c. Repeated occlusal overload

d. Root canal treated tooth

54 / 60

តើ Plan de Francfort កាត់តាមណា?

a. កាត់តាមគែមលើរន្ធត្រចៀក និង គែមក្រោមនៃរន្ធភ្នែក

b. កាត់តាម Tragius និង ផ្នែកខាងក្រោមច្រមុះ

c. កាត់តាម Lingne median

d. កាត់តាមបណ្ដា Cuspide

55 / 60

What is A?:

a. Capsul

b. Lateral ligament

c. Sphenomandibular ligament

d. Stylomandibular ligament

56 / 60

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

a. Laterotrusive contacts

b. Centric occlusion

c. Protrusive contacts

d. Rest position

57 / 60

Which one is incorrect statement of Lateral Pterygoid muscle:

a. Origin: the ape surface of coronoid process and anterior border of the ramus

b. None all of above

c. Action: Depress, protrude mandible

d. Is also called Pterygoid Extern

58 / 60

The key to occlusion is_______________?

a. Maxillary primary second molar

b. Maxillary primary first molar

c. Maxillary permanent first molar

d. Maxillary permanent second molar

59 / 60

Cracks, fractures, and excessive wear on restorations are all signs of:

a. Non stable occlusion

b. Stabile occlusion

c. Occlusal Disharmony

d. Occlusal interferences

60 / 60

Masticatory system in general consists of three main component :

a. Teeth, Periodontal tissue and Occlusion

b. Teeth, Tongue, and check

c. Teeth, Periodontal tissue and Enamel

d. Teeth, Tongue and Enamel

Your score is

The average score is 0%

Any comments?

Any problems/errors or mistakes found while testing, please let us know for modification!

និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត