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Table 1 Percentage (frequency) of physicians’ (n = 106) correct responses to knowledge questions

From: Evaluation of an educational intervention in oral health for primary care physicians: a cluster randomized controlled study

  Group A (n = 38) Group B (n = 32) Group C (n = 36)
Pre Post Diff Pre Post Diff Pre Post Diff
Paediatric domain
 The bacteria that causes dental decay usually transmit from mother to the child 16 (6) 84 (32) 68 (26) 22 (7) 31 (10) 9 (3) 33 (12) 42 (15) 33 (12)
 Toothpastes which contain fluoride should not be used for children under 3 years old 18 (7) 53 (20) 35 (13) 22 (7) 13 (4) -9 (−3) 17 (6) 17 (6) 17 (6)
 Teeth cleaning and brushing should be started from 2- to 3- years old, when deciduous dentition is completed 21 (8) 55 (21) 34 (13) 38 (12) 47 (15) 9 (3) 36 (13) 25 (9) 36 (13)
 Pacifier sucking in under-4-year-old children is a risk factor for dento-alveolar malformation 3 (1) 42 (16) 39 (18) 6 (2) 9 (3) 3 (1) 14 (5) 17 (6) 14 (5)
 Using fluoride varnish on under-5-year-olds teeth causes fluorosis and poisoning 26 (10) 66 (25) 40 (15) 31 (10) 34 (11) 3 (1) 33 (12) 33 (12) 33 (12)
 Sealants are effective in the prevention of pit and fissure caries in newly erupted molars 61 (23) 92 (35) 31 (12) 59 (19) 72 (23) 13 (4) 64 (23) 64 (23) 64 (23)
Dental domain
 Why fluoride is added to toothpaste 90 (34) 100 (38) 10 (4) 88 (28) 91 (29) 3 (1) 100 (36) 100 (36) 100 (36)
 The first signs of decay are white spots or lines on teeth surfaces 47 (18) 97 (37) 50 (19) 47 (15) 63 (20) 16 (5) 44 (16) 39 (14) 44 (16)
 The frequency of sugar consumption has a greater role in producing caries than does the total amount of sugar consumed 97 (37) 97 (37) 0 (0) 88 (28) 81 (26) -7 (−2) 94 (34) 86 (31) 94 (34)
 Using fluoride toothpaste is more important than the brushing technique for preventing caries 0 (0) 63 (24) 63 (24) 3 (1) 13 (4) 10 (3) 17 (6) 17 (6) 17 (6)
 The best time to refer a pregnant woman for emergency dental procedure is in second semester 71 (27) 87 (33) 16 (6) 56 (18) 66 (21) 10 (3) 75 (27) 78 (28) 75 (27)
 The main cause of periodontal diseases is dental plaque 82 (31) 100 (38) 18 (7) 72 (23) 84 (27) 12 (4) 86 (31) 89 (32) 86 (31)
Medical domain
 Periodontal diseases can cause LBW 61 (23) 90 (34) 29 (11) 75 (24) 78 (25) 3 (1) 64 (23) 75 (27) 64 (23)
 Periodontal diseases can cause problems in diabetes control 63 (24) 97 (37) 34 (13) 75 (24) 75 (24) 0 (0) 75 (27) 78 (28) 75 (27)
 Periodontal diseases can cause cardiovascular disease 79 (30) 90 (34) 11 (4) 94 (30) 92 (29) −2 (−1) 92 (33) 92 (33) 92 (33)
 Antidepressants increase the risk of dental caries 47 (18) 87 (33) 40 (15) 53 (17) 59 (19) 6 (2) 58 (21) 67 (24) 58 (21)
 Analgesics increase the risk of dental caries 29 (11) 68 (26) 39 (15) 25 (8) 44 (14) 19 (6) 47 (17) 50 (18) 47 (17)
 Antihypertensive drugs increase the risk of dental caries 13 (5) 71 (27) 58 (22) 28 (9) 34 (11) 6 (2) 28 (10) 31 (11) 28 (10)
  1. Group A: Booklet + CME course + pamphlet, Group B: Pamphlet, Group C: Control, Pre: before, Post: after the intervention