Following a simple extraction of tooth 4.7, hemostasis was achieved. Forty eight hours later, there is renewed bleeding from the extraction site. Firm pressure fails to achieve hemostasis. The most appropriate management is to
A. give local anesthetic, pack and suture.
B. apply firm pressure and ice for ten minutes.
C. obtain an international normalized ratio (INR) and a complete blood count.
D. give local anesthetic and electrocauterize the socket.
In endodontics, which of the following is true regarding the crown-down technique?
a.Facilitates access to the apical third.
b.Cannot be done with manual instruments.
c.Smaller to larger instruments are used.
d.Results in a canal with increasing taper in the apical third
A. is only effective on dry, plaque-free teeth.
B. can remineralize early root carious lesions.
C. causes unsightly stain on exposed roots.
D. should only be used on individuals in unfluoridated areas.
Which of the following should be corrected though orthodontic intervention?
A. Maxillary mesiolingual cusps that interdigital with the central fossa of the mandibular molars
B. Maxillary mesiobuccal cusp tips that contact the mandibular mesiobuccal cusp tips
C. Angle class 1 occlusion with 30% overbite and 2 mm over jet with mild maxillary spacing
D. Angle class 2 molar relationship with 30% overbite, 2 mm over jet and good arch alignment.
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