Skip to main content

Table 3 Perceptions, clinical experience, and continuing education aspects of GDPs, Pediatric Dentists and Other Dental Specialists regarding MIH

From: Knowledge, perception, and clinical experiences on molar incisor hypomineralization amongst Portuguese dentists

Questions Total
N = 257
N (%)
GDPs
N = 130
N (%)
PDs
N = 24
N (%)
ODSs
N = 103
N (%)
p-value
In your clinical practice, do you find cases of MIH?
Yes 212 (82.5) 104 (80.0) 24 (100) 84 (81.6) 0.0574
No 45 (17.5) 26 (20.0) 0 (0.0) 19 (18.4)
What is the most common type of dental development defect that you find in your clinical practice?
White opacities 50 (19.5) 30 (23.1) 2 (8.3) 18 (17.5)  < 0.001
Yellow/brown opacities 82 (31.9) 45 (34.6) 5 (20.8) 32 (31.1)
Post-eruptive fractures 4 (1.6) 1 (0.8) 2 (8.3) 1 (1.0)
None 18 (7.0) 9 (6.9) 0 (0.0) 9 (8.7)
Post-eruptive fractures and Yellow/brown opacities 13 (5.1) 1 (0.8) 5 (20.8) 7 (6.8)
White opacities and Yellow/brown opacities 78 (30.4) 40 (30.8) 7 (29.2) 31 (30.1)
White opacities. Yellow/brown opacities and Post-eruptive fractures 12 (4.7) 4 (3.1) 3 (12.5) 5 (4.9)
What other permanent teeth have you found MIH defects in?
Premolars 7 (2.7) 3 (2.3) 1 (4.2) 3 (2.9) 0.438
Second permanent molars 45 (17.5) 31 (23.8) 2 (8.3) 12 (11.7)
Canines 5 (1.9) 2 (1.5) 0 (0.0) 3 (2.9)
Canines and Premolars 1 (0.4) 0 (0.0) 0 (0.0) 1 (1.0)
Premolars and Second permanent molars 9 (3.5) 5 (3.8) 0 (0.0) 4 (3.9)
Canines and Second permanent molars 5 (1.9) 3 (2.3) 0 (0.0) 2 (1.9)
None 185 (72.0) 86 (66.2) 21 (87.5) 78 (75.7)
Do you notice these defects in deciduous second molars?
Yes 95 (37.0) 42 (32.3) 20 (83.3) 33 (32.0)  < 0.001
No 162 (63.0) 88 (67.7) 4 (16.7) 70 (68.0)
Do you have any idea if the incidence of MIH has been increasing?
Yes 131 (51.0) 63 (48.5) 23 (95.8) 45 (43.7)  < 0.001
No 126 (49.0) 67 (51.5) 1 (4.2) 58 (56.3)
In case you identify a defect of this type (MIH), would you refer it to a pediatric dentist for differentiated treatment?
Yes. or when possible 213 (82.9) 98 (75.4) 94 (91.3)  < 0.001
No 44 (17.1) 32 (24.6) 9 (8.7)
In your opinion, does MIH represent a public health problem similar to tooth decay?
Yes 195 (75.9) 95 (73.1) 22 (91.7) 78 (75.7) 0.148
No 62 (24.1) 35 (26.9) 2 (8.3) 25 (24.3)
What type of preventive treatment do you usually apply for these teeth?
Fluor varnish 160 (62.3) 93 (71.5) 16 (66.7) 51 (49.5)  < 0.001
Diamino-fluoride of silver 13 (5.1) 4 (3.1) 1 (4.2) 8 (7.8)
CCP-ACP or cracked amorphous casein phosphate 44 (17.1) 10 (7.7) 15 (62.5) 19 (18.4)
Crack Sealant 100 (38.9) 58 (44.6) 3 (12.5) 39 (37.9)
Others 66 (25.7) 31 (23.8) 5 (20.8) 30 (29.1)
What type of treatment do you usually apply for MIH?
Microabrasion 47 (18.3) 24 (18.5) 6 (25.0) 17 (16.5)  < 0.001
Infiltrating resin 86 (33.5) 51 (39.2) 5 (20.8) 30 (29.1)
Glass ionomer 97 (37.7) 48 (36.9) 18 (75.0) 31 (30.1)
Composite 144 (56.0) 71 (54.6) 14 (58.3) 59 (57.3)
Amalgam 3 (1.2) 0 (0.0) 0 (0.0) 3 (2.9)
Preformed crowns 73 (28.4) 27 (20.8) 17 (70.8) 29 (28.2)
Extraction 6 (2.3) 1 (0.8) 3 (12.5) 2 (1.9)
In your opinion, do you feel confident in diagnosing MIH?
Very confident 20 (7.8) 5 (3.8) 10 (41.7) 5 (4.9)  < 0.001
Trusting 129 (50.2) 66 (50.8) 13 (54.2) 50 (48.5)
Little confident 90 (35.0) 47 (36.2) 1 (4.2) 42 (40.8)
Not at all confident 18 (7.0) 12 (9.2) 0 (0.0) 6 (5.8)
In your opinion, do you feel confident in managing your MIH treatment?
Very confident 14 (5.4) 2 (1.5) 7 (29.2) 5 (4.9)  < 0.001
Trusting 76 (29.6) 39 (30.0) 14 (58.3) 23 (22.3)
Little confident 135 (52.5) 69 (53.1) 3 (12.5) 63 (61.2)
Not at all confident 32 (12.5) 20 (15.4) 0 (0.0) 12 (11.7)
Do you receive any information about MIH?
Yes 13 (5.1) 3 (2.3) 7 (29.2) 3 (2.9)  < 0.001
No 244 (94.9) 127 (97.7) 17 (70.8) 100 (97.1)
Would you like to know more about Hypomineralization?
Diagnosis 178 (69.3) 95 (73.1) 15 (62.5) 68 (66.0) 0.048
Etiology 171 (66.5) 84 (64.6) 16 (66.7) 71 (68.9)
Treatment 228 (88.7) 123 (94.6) 21 (87.5) 84 (81.6)
No 16 (6.2) 2 (1.5) 2 (8.3) 12 (11.7)
  1. GDPs General Dental Practitioners, MIH molar incisor hypomineralization, PDs Pediatric Dentists, ODSs Other Dental Specialties
  2. Statistically significant (p < 0.05), Pearson’s chi-square (χ2) test