第九章测试1. The basic principles for the treatment of periimplant tissue lesions are （ ）
A:Elimination of peri-implant pockets B:Completely remove plaque C:Control infection D:Stop bone loss E:All of the above
答案:E
2. Which of the following is an important promoter of periimplant inflammation （ ）
A:Smoking B:Plaque microorganisms C:Excessive biomechanical load D:Patient's general health E:Alcoholism 3. When implant surgery is performed in the mandibular posterior tooth area, （ ）
A:The implant should be kept at a certain distance from the adjacent teeth B:Attention should be paid to the bony undercut on the lingual side C:Avoid the chin hole D:Crown implant ratio should be greater than 1:1 E:Attention should be paid to avoiding mandibular canal 4. Periodontal treatment is carried out for patients before implant, and the control standards for periodontal infection generally include （ ）
A:Full mouth BOP (-) B:Full mouth bleeding on probing (BOP)<25% C:Plaque index<20% D:Residual periodontal pocket depth ≤ 3mm or ≤ 5mm E:PD>5mm at some sites of residual teeth 5. In general, if there is no effusion or acute inflammation in the maxillary sinus before surgery, small mucosal perforation will not affect the implant, and collagen membrane can also be used to cushion the perforation area. If the perforation is large, the window should be closed first, and then perform implant surgery after 3 months to avoid maxillary sinusitis. （ ）
A:对 B:错
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