What is the therapeutic effect of calcium hydroxide in endodontic treatment ?
A. effectively removes the smear layer
B. reduces inflammation and pain by blocking the inflammatory cascade
C. leads to a lowered oxygen tension and an increase in the pH in the inflamed periapical tissue
D. reduces the surface tension and dries canal due to fast vaporization
2. Symptomatic Apical Periodontitis :
A. may start out with an acute episode
B. usually caused by a long-standing fistula
C. radiolucency is patognomonic for apical periodontitis
D. the symptoms are usually sharp and they quickly subside when the external irritation has stopped
3. The percussion test :
A. is performed in an effort to determine whether the pulp of a tooth is vital or not
B. is the examination method that will first give clinical indications of an apical periodontitis
C. may be performed to determine the presence of cracks and fractures in the teeth
D. is sometimes valuable in endodontic diagnosis
4. Which dental procedure may require antimicrobial cover ?
A. the cavity preparation with local anesthetic injections
B. taking intraoral radiographs
C. placement of rubber dam
D. endodontic instrumentation or surgery only beyond the apex
5. Dental Hypersensitivity is caused by :
A. the fact that dentin has become exposed
B. developmental teeth defects
C. poor diet and poor oral hygiene
D. traumatic injuries of the teeth
6. Chronic Apical Periodontitis is associated with :
A. pulp necrosis
B. dental hypersensitivity
C. traumatic occlusion and/or crown fractures
D. an exacerbation of a chronic inflammation in the pulp