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

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:

260. The identifying number of permanent mandibular left canine in the universal numbering system is:

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

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

Biomedical Science(6)

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