Biomedical Science(6)
251. Anatomical crown of tooth is?
σ Portion of tooth wich is covered by enamel
σ Portion of tooth wich is visible in mouth
σ Portion crown of tooth wich is visible in mouth
σ Portion of tooth may or may not correspond to anatomical croun
252. Clinical crown of tooth is ?
σ Portion crown of tooth wich is visible in mouth
σ Portion of tooth may or may not correspond to clinical croun
σ Portion of tooth wich is visible in mouth
σ Portion of tooth wich is covered by enamel
253. នៅពេលធ្វើ Cervical cross sectionនៅលើ Maxillary central incisor, Pulp cavity មានរាង៖
σ ពងក្រពើ
σ មូល
σ មូលទ្រវែង
σ ត្រីកោណ
254. The union of the triangular ridge of the distobuccal cusp and the distal ridge of the mesiolingual cusp of maxillary molar forms the:
σ Marginal ridge
σ Oblique ridge
σ Triangular ridge
σ Transverse ridge
255. The identifying number of permanent mandibular left second molar in the FDI numbering is:
σ 2
σ 17
σ 18
σ 37
256. Universal system នៃMaxillary central incisor គឺ:
11,21
8,9
41, 51
21, 22
257. Lingual fossa of maxillary centralស្ថិតនៅ៖:
σ ចន្លោះMarginal ridges
σ ក្រោម Cingulum
σ លើCingulum
σ ចន្លោះMarginal ridgesនិងក្រោមCingulum
ៅពេលធ្វើ Cervical cross sectionនៅលើ Maxillary central incisor, Pulp cavity មានរាង:
σ ពងក្រពើ
σ មូល
σ មូលទ្រវែង
σ ត្រីកោណ
259. The identifying number of permanent maxillary right second premolar in the FDI numbering is:
25
14
15
44
260. The identifying number of permanent mandibular left canine in the universal numbering system is:
22
3
33
43
261. Line angle ត្រូវបានបង្កើតឡើងដោយៈ
Surfaces ពីរប្រសព្វគ្នា
Surfaces បីប្រសព្វគ្នា
Surface មួយប្រសព្វគ្នានឹងPoint angle មួយ
Point angle មួយ ប្រសព្វគ្នា Surfaces ពីរ
262. Permanent maxillary incisors ជាទូទៅ:
σ មានស៊េរីចុះពីធំទៅតូចគឺទី១ធំជាងទី២
σ មានស៊េរីឡើងពីធំទៅតូចគឺទី១ធំជាងទី២
σ មានស៊េរីចុះពីតូចទៅធំគឺទី១តូចជាងទី២
σ មានស៊េរីឡើងពីតូចទៅធំគឺទី១ធំជាងទី២
263. លក្ខណៈបួនដែល Crowns of permanent incisors មានលក្ខណៈខុសប្លែកពី Crowns របស់Permanent teeth ដ៏ទៃទៀតរួមមាន:
Incisal edge, Mamelons,ទីតាំងនិងមុំនៃ Marginal ridges, Lingual fossa និង Cingulum
ីតាំងនិងមុំនៃ Marginal ridges, Incisal edge, Mamelons, Lingual fossa
Mamelons, Lobes, Lingual fossa, Lingual fossa និង Cingulum
Lingual fossa , Cingulum, Incisal edge, Mamelons
264. Universal numbering system របស់ Permanent maxillary central incisor right គឺ :
11
1
9
8
265. Universal numbering system របស់ Permanent maxillary central incisor leftគឺ :
21
2
9
8
266. Root completion របស់ Permanent maxillary central incisor គឺៈ
4-5 years
10-11 years
2-3 months
3-4 months
267. The permanent mandibular second premolar មានៈ
σ 2 Cusp
σ 3 Cusp
σ 1 or 2 Cusp
σ 2 or 3 Cusp
268. From the occlusal aspect of the permanent mandibular second premolar នៅពេលមានទម្រង់ជាY type cuse ដែលមានបីCusps គឺ:
Buccal cusp > Mesiolingual cusp > Distolingual cusp
Buccal cusp > Distolingual cusp > Mesiolingual cusp
Mesiolingual cusp > Buccal cusp > Distolingual cusp
Distolingual cusp > Mesiolingual cusp > Buccal cusp
269. The most common cusp form of mandibular second premolar is:
σ Y type
σ U type
σ H type
σ U or H type
270. Eruption របស់ Permanent maxillary first molar គឺៈ
σ At birth
σ 6-7 years
σ 5 - 6 Years
σ 6 years
271. Root completion របស់ Permanent maxillary first molar គឺៈ
σ 6 Years
σ 5-6 years
σ 10 - 11 Years
σ 9- 10 years
272. បើមើលតាម Buccal surface នៃ Permanent maxillary first molar Crown របស់វាមានរាង
σ Parallelogram with small uneven side occlusally
σ Trapezoidal with the small uneven side present cervically
σ Rectangular with small uneven side occlusally
σ Trapezoidal with small uneven side cervically
273. Anatomical landmarks នៅលើ Occlual surface crown of Permanent maxillary first molar គេសង្កេតឃើញ:
σ Elevations, Cusps, Marginal ridge, Tubercle, Oblique ridge
σ Depression, Developmental grooves, Supplemental groove, Fossa
σ Cusps, Marginal ridge, Tubercle, Groove
σ Elevations and depression
274. 3 point from Goal of complete dentistry :
σ Stable TMJs, Stable occlusion, and Comfort of function
σ Stable TMJs, No pain, and Comfort of function
σ Stable TMJs, Stable occlusion, and occlusion class II
σ Stable occlusion, No pain and Stable TMJs
275. The 5 main mastication muscles are:
σ Masseter, Mylohyoid, Medial Pterygoid, Lateral Pterygoid, and Digastric
σ Masseter, temporalis, Medial Pterygoid, Lateral Pterygoid, and Stylohyoid
σ Masseter, temporalis, Medial Pterygoid, Lateral Pterygoid, and Digastric
σ Masseter, Mylohyoid, Medial Pterygoid, Lateral Pterygoid, and Stylohyoid
276. The Chewing cycle consists of 3 phase in order:
σ Opening, closing, and occlusal or intercuspal phase
σ Occlusal or intercuspal, opening, and close
σ Opening, occlusal, and intercuspal phase
σ All are correct
277. What are the three restoring function of a complete denture?
σ Aesthetic, mastication, sound
σ Mastication, Phonetic, speech
σ Sound, speech, aesthetic
σ Aesthetic, mastication, Phonetic.
278. What is a complete denture?
σ The replacement of all natural teeth in the mandible
σ The replacement of all natural teeth in the maxilary
σ The replacement of some natural teeth in the maxillay and mandible
σ The replacement of all natural teeth in the arch and their associated parts by artificial substitutes
279. What is phonetic function in complete denture?
σ One of the most important functions of a complete denture to restore the sound of the patient
σ One of the most important functions of a complete denture to restore the speech of the patient.v
σ One of the most important functions of a complete denture to restore the sound of a denture
σ One of the most important functions of a complete denture to restore the speech of a denture
280. What is denture border?
σ Denture border is margin of denture base at junction of the polishing surface and occlusal surface
σ Denture border is margin of denture base at junction of the polishing surface and impression surface.
σ Denture border is margin of denture base at junction of the impression surface and occlusal surface
σ Denture border is margin of denture base at junction of the polishing surface, occlusal surface, and polishing surface
281. What are three the type of morphology of denture teeth?
σ Anatomy teeth, semi-anatomy teeth, resin teeth
σ Anatomy teeth, semi-anatomy teeth, porcelain teeth
σ Anatomy teeth, non-anatomy teeth, composite teeth
σ Anatomy teeth, semi-anatomy teeth, non-anatomy teeth.
282. What are the limiting structures in maxillary in complete denture?
σ Labial frenum, labial vestibule, buccal frenum, buccal vestibule, hamular notch, and posterior palatal seal area.
σ Labial frenum, labial vestibule, buccal frenum, buccal vestibule, Lingual frenum, and posterior palatal seal area
σ Lingual frenum, labial vestibule, buccal frenum, buccal vestibule, hamular notch, and posterior palatal seal area
σ Labial frenum, labial vestibule, buccal frenum, buccal vestibule, hamular notch, and toris palatin
283. What are the supporting structures?
σ Hard palate, postero-lateral slopes of the residual alveolar ridge, toris palatin, maxillary ridge, alveolar tubercle, tuberosity
σ Hard palate, postero-lateral slopes of the residual alveolar ridge, rugae, maxillary tuberosity, alveolar tubercle.
σ Hard palate, tissue, rugae, maxillary tuberosity, alveolar tubercle.
σ Hard palate, frenum, postero-lateral slopes of the residual alveolar ridge, rugae, maxillary tuberosity
284. What are the relief areas?
σ Incisive papilla, cispid eminence, mid-palatine raphe, and fovea palatine.
σ Incisive canal, canine eminence, mid-palatine raphe, and fovea palatine
σ Incisive papilla, cispid eminence, tuberosity, and fovea palatine
σ Incisive papilla, cispid eminence, toris palatine, and fovea palatine
285. Where is vibration line?
σ Located between the movable and immovable tissues of the soft palate
σ Located in front of the movable tissues of the soft palate
σ Located behind the movable tissues of the soft palate
σ Located in front the immovable tissues of the soft palate
286. A bulbus extension of the residual ridge in the second and third molar region. What is it called?
σ Rugae
σ Incisive Papilla
σ Fovea Palatina
σ Maxillary Tuberosity
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