Dentoalveolar surgery Flashcards
The fractured palatinal root of an upper molar tooth may be approached through a Wassmund- type flap on the palatinal side, because the trapezoid flap is good to remove fractured roots.
D
It is not recommended to use an elevator to remove the roots of upper molars, because thus it is easy to cause an injury of the facial nerve.
C
It is best to apply a Pichler type flap for apicectomy, because in this type the sides of the flap may be lengthened if the root is long.
E
Large maxillary cysts are converted to be side cavities of the maxillary sinus, therefore during the Luc-Caldwell operation a bony window is opened towards the lower nasal cavity.
B
The pH of inflamed tissues may be acidic, therefore in inflamed tissues the concentration of the free unloaded base of the anaesthetic is lower.
A
The main cause of osteoradionecrosis is the destruction of osteocytes because the small vessels of the bone are occluded due to radiation treatment.
B
A. impaction B. retention
C. both
D. none
DAS-229. during its eruption the tooth is stuck behind an obstacle
DAS-230. it mostly happens with lower third molars
DAS-231. the position of tooth can be studied on a bite-on X-ray
DAS-232. its treatment is surgical and/or orthodontic
229 - A
230 - A
231 - B
232 - B
A. alveolar osteitis
B. purulent periostitis
C. both
D. none
DAS-241. the regional lymph nodes are usually swollen DAS-242. it is characterised by a high, septic fever DAS-243. fistula formation is characteristic
DAS-244. a gauze strip dipped in Chlumsky’s solution is used for its treatment
241 - C
242 - B
243 - D
244 - A
A. acute osteomyelitis
B. chronicosteomyelitis
C. both
D. none
DAS-249. high fever and bad general condition are characteristic of it
DAS-250. fistula formation and sequestration are its characteristics
DAS-251. it is more frequent in the maxilla
DAS-252. its therapy is surgery and antibiotics
249 - A
250 - B
251 - D
252 - C
A. pterygopalatine fossa
B. pterygomandibular space
C. both
D. none
DAS-253. it has a communication to the infratemporal fossa
DAS-254. it is funnel shaped towards the caudal direction
DAS-255. its important features are the second and third branches of the trigeminal nerve
DAS-256. its important feature is the first branch of the trigeminal nerve
253 - A
254 - A
255 - D
256 - D
A. pleomorphic adenoma B. Warthin-tumour C. both D. none 273. its mostly found in the lower pole of the parotid gland. 274. epithelial tumour 275. a lesion without a capsule 276. it accounts for about 2% of all salivary gland tumours
273 - C
274 - C
275 - D
276 - B
A. Ultracain (Articaine)
B. Marcain (Bupivacaine)
C. both
D. none
DAS-297. its time of effect is especially long
DAS-298. its toxicity is 10 times more than procaine DAS-299. its diffusion property is very good
DAS-300. it contains 4% material without vasoconstrictor
297 - B
298 - B
299 - A
300 - D
A. coagulopathy B. vasculopathy C. both D. none DAS-301. platelet counts are normal DAS-302. coagulation time is largely increased DAS-303. bleeding time is largely increased DAS-304. coagulation time is normal
301 - C
302 - A
303 - D
304 - B
