图示三铰拱,若拱高为3L,2.5L,2L,则最小的支座水平推力为( )。

A: B: C: D:

患者,女性,66岁,缺失,进行可摘局部义齿修复,基牙为,舌侧牙槽嵴为垂直型。采用大连接杆连接,其中向中舌侧倾斜,其余基牙正常。

上可采用

A:固定卡环 B:双臂卡环 C:联合卡环 D:对半卡环 E:环形卡环

缺失,牙根短,咬合关系好,那种修复方案最好()

A:固定桥 B:固定桥 C:固定桥 D:局部义齿 E:固定桥

铸造冠修复2年,反复脱落,要求重做;查:远中、面银汞充填,龈距2mm左右,面与对颌牙间隙约1mm,轴壁聚合度约5°,对颌牙中度磨耗,牙片示根充恰填,经询问患者喜欢吃较硬食物。 脱落主要原因().

A:粘结剂性能差 B:力过大 C:轴壁聚合度过大 D:饮食习惯不良 E:龈距过低

均为向量,下列等式中正确的是()。

A: B: C: D:

患者男,35岁,缺失,做基牙,行可摘局部义齿修复 制割7铸造支托凹,其颊舌径宽度约为()

A:颊舌径的1/2 B:颊舌径的2/3 C:颊舌径的1/4 D:颊舌径的1/3 E:颊舌径的1/5

患者男性,69岁,残根,有高血压病史,检查血压21.3~14.7kPa(160/110mmHg)。该患者的治疗方案为()

A:口服安定(地西泮)半小时后拔除 B:2%利多卡因局麻下拔除 C:内科治疗高血压后再考虑拔除 D:2%含肾普鲁卡因局麻下拔除 E:碧兰麻局麻下拔除

患者,男性,58岁,上牙列缺失,缺失,双侧上颌结节过度增生,相应牙槽嵴骨尖,远中深龋,远中舌尖缺损,已做完善根管充填,不松动,智齿,近中阻生,牙石(+++)。 修复前的准备中,哪项工作最不重要()

A:拔除 B:治疗 C:清除牙石 D:去骨尖 E:修整上颌结节

B
Ellis Island is located in New York Harbor. Ellis Island is open daily year-round from9:30a. m. to 5:00p. m, with extended hours during summer. It is closed on December 25. There is no admission(入场) charge to Ellis Island; donations(捐款) are gratefully accepted.
At Your Fingertips
Park information (212) 363~7620
Emergencies (212) 363~3260
Ferryboat information (212) 269~5755
Lost and found (212) 363~7620
Dining, gift, & audio tour (212) 344~0996
Transportation
Stature of Liberty and Ellis Islan Ferry: Boats leave from Battery Park, Manhattan, and from Liberty State Park, New Jersey. They run about every 30 to 45 minutes beginning at 9:15a. m. (ferry schedule subject to change)
Hours: May vary; call the number above
Closed: December 25
Ferry fees: (Includes Liberty and Ellis Island) adults, $ 7; senior citizens, $ 6; children(age 3 to 17) $ 3. ( group rates are available for 25 or more adults)
Tickets & schedule information: (211) 269~5775

Which number would you call if your friends were suddenly ill()

A:(212)344~0996 B:(212)363~7620 C:(212)363~3260 D:(212)269~5755

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