Dentosphere : World of Dentistry

1.The first permanent tooth to erupt in the oral cavity is the: Mandibular central incisor Mandibular First Molar Maxillary Central Incisor Maxillary First Molar 2. The age of a child having 12 permanent and 12 deciduous teeth is:? Four and half years Eight and half years Eleven and half years Thirteen years Fourteen years

# The most common side effect of the oral administration of ampicillin is :  A. Anaphylactic shock B. Diarrhoea C. Oral Candidiasis D. Renal failure # Which of the following drugs is likely to damage the eighth cranial nerve when administered for a long period of time ? A. Ethambutol B. Isoniazide C. Rifampicin D. Streptomycin

1.When is sex of an individual determined? At the time of conception Fourth week of development Eighth week of development Last trimester of pregnancy 2. The fetal sertoli cells start producing anti mullerian hormone (AMH) at about seventh week of gestation in: Female fetus Male fetus Both male and female fetus AMH is not secreted by fetal sertoli cells

1.A prepared cavity is best protected from moisture by: Cotton rolls Saliva ejector Rubber dam Paper napkin 2. Retentive grooves in the proximal box of a class II amalgam cavity should be: Sharp and elongated at the dentinoenamel junction Round and elongated in the dentin Round and short in the dentin Sharp and elongated in the dentin