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Table 2 Perceptions and clinical experience concerning the clinical appearance, diagnosis, and prevalence of MIH

From: Knowledge, perceptions, and clinical experience regarding Molar-Incisor Hypomineralization among a group of general dental practitioners, pediatric dentists, and other dental specialists in Egypt: a cross-sectional study

Questions   GDPs
N (%)
PDs
N (%)
DSs
N (%)
P value
Do you encounter teeth with MIH in your practice? (yes)   192 (74.7%) 110 (100%) 128 (96.2%) < 0.001*
Regarding severity of the defect: which of the following do you most frequently observe in your practice? White demarcation
Yellow/Brown demarcation
Post-eruptive enamel breakdown
28 (14.5%)
128 (66.3%)
37 (19.2%)
19 (17.3%)
78 (70.9%)
13 (11.8%)
11 (8.5%)
88 (68.2%)
30 (23.3%)
0.085
In your practice, do you encounter demarcated hypomineralized defects in permanent teeth other than the FPMs and incisors? (yes)   44 (22.9%) 53 (48.2%) 72 (55.8%)  < 0.001*
- If yes; please name the tooth/teeth Canines
Premolars
Second permanent molars
31 (70.5%)
10 (22.7%)
3 (6.8%)
24 (42.1%)
20 (35.1%)
13 (22.8%)
52 (58.4%)
21 (23.6%)
16 (18%)
0.047*
How frequently do you observe this defect in the second primary molar in comparison to the first permanent molar? More frequently
Less frequently
The same as for the first permanent molar
Not sure
5 (2.6%)
130 (67.4%)
5 (2.6%)
53 (27.5%)
3 (2.7%)
95 (86.4%)
2 (1.8%)
10 (9.1%)
0 (0)
100 (78.1%)
0 (0)
28 (21.9%)
0.002*
How confident do you feel when diagnosing teeth with MIH? Very confident
Confident
Unconfident
Very unconfident
10 (5.2%)
105 (54.4%)
76 (39.4%)
2 (1%)
19 (17.3%)
77 (70.0%)
14 (12.7%)
0 (0)
16 (12.4%)
106 (82.2%)
7 (5.4%)
0 (0)
0.001*
Do you think that a significant percentage of caries is caused by MIH? Yes
No
Not sure
95 (37.0%)
66 (25.7%)
96 (37.4%)
59 (53.6%)
32 (29.1%)
19 (17.3%)
47 (35.3%)
66 (49.6%)
20 (15.0%)
< 0.001*
Do you think teeth with MIH represent a clinical problem? (yes)   236 (91.8%) 106 (96.4%) 130 (97.7%) 0.133
- If yes, how serious/severe do you think is MIH in your community? Mild
Moderate
Severe
Not sure
83 (33.9%)
125 (51.0%)
24 (9.8%)
13 (5.3%)
25 (23.1%)
64 (59.3%)
14 (13.0%)
5 (4.6%)
39 (29.5%)
84 (63.6%)
3 (2.3%)
6 (4.5%)
0.022*
  1. *p < 0.05 = significant difference