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49 - pick the odd one out :

48 - pick the odd one out :

47 - pick the odd one out :

46 - one of the following is right :

45 - one of the following is wrong :

44 - the order of vertical thirds of a posterior tooth , from top to bottom , is :

43 - during gingival recession , which of the following statements is considered true ?

42 - in eruption , which statement of the following is true ?

41 - choose : COLUMN A : a- gingiva b- periodontal ligament c- cementum d- alveolar process COLUMN B : 1- soft tissue at the neck of the tooth 2- hard tissue that covers root of the tooth 3- part of jaw containing teeth 4- attaches tooth's root & jaw

40 - the periodontium is formed of 4 tissues , which are :

39 - the heart of the tooth is :

38 - one of the following is true about enamel :

37 - choose the odd one out :

36 - the period of primary dentition is :

35 - one of the following is wrong :

• time for MCQs ! 34 - pick the odd one out :

33 - the most important salt in calcification of teeth is calcium

32 - loss of teeth due to unnatural causes is labelled as physiological shedding

31 - contact points are lost to attrition , as well as cusp tips and ridges

30 - teeth of the same kind erupt at both sides of a jaw in the same time