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8803 Dental

A 45 year old female patient comes to your clinic for routine dental check up. Intraoral examination proximal restoration with 15, 16; amalgam restoration with 26; composite restoration with 35 and deep pit and fissures with 36, 37 ,46, 47. PRR was adviced with lower molars. Which of the following steps can be done to make this restoration more retentive?

AReinforce them with bulk formed composite
BCleaning of fissure and prevent moisture
CEtching
DIncreased depth with burs
Dental
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8805 Dental

A 5 year old male patient complains of swollen and painful gums. He gives a history of delayed eruption of teeth. On extra-oral examination, an underdeveloped midface and prognathic jaw relationship was seen. Intraoral finding revealed open bite, macroglossia and generalized periodontitis. Which of the following is the most common etiological factor for this condition?

ANon disjunction during paternal meiosis
BNon disjunction during maternal meiosis
CTranslocation
DMosaicism
Dental
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