Table 3: Grading of dental enamel pathology in patients according to celiac positivity and effect of a GFD for 1 year.

Celiac + DED atCeliac + DED AfterNonceliac + DED atNonceliac + DEDGIa versus GIIaGIb versus GIIb
start of study1 year on GFDstart of studyafter 1 year
(25) (25)(115)(115)
(GIa)(GIb) (GIIa)(GIIb)

Normal06 (24%)04 (3.48%) 𝑋 2 = 1 3 . 0 4
𝑃 = 0 . 0 0 0 3

Grade 17 (28%)7 (28%)80 (69.57%)78(67.38%) 𝑋 2 = 1 5 . 0 8 𝑋 2 = 6 . 8 1
𝑃 = 0 . 0 0 0 1 𝑃 = 0 . 0 0 9 1
𝑋 2 = 0 . 8 0 and 𝑃 = 0 . 3 7 0 5 𝑋 2 = . 0 8 and 𝑃 = 0 . 7 7 6 1

Grade 210 (40%)6 (24%)22 (19.13%)21 (18.26%) 𝑋 2 = 5 . 0 7 𝑋 2 = 0 . 4 3
𝑃 = 0 . 0 2 4 3 𝑃 = 0 . 5 0 9 8
𝑋 2 = 1 . 4 7 and 𝑃 = 0 . 2 2 5 3 𝑋 2 = 0 . 0 3 and 𝑃 = 0 . 8 6 5 7

Grade 36 (24%)4(16%)11 (9.57%)10 (8.7%) 𝑋 2 = 4 . 0 1 𝑋 2 = 0 . 2 7
𝑃 = 0 . 0 4 5 2 𝑃 = 0 . 6 0 5 9
𝑋 2 = 1 . 2 2 and 𝑃 = 0 . 2 6 9 5 𝑋 2 = 0 . 0 5 and 𝑃 = 0 . 8 1 8 9

Grade 42 (8%)2 (8%)2 (1.74%)2 (1.74%) 𝑋 2 = 2 . 9 0 𝑋 2 = . 4 4
𝑃 = 0 . 0 8 8 6 𝑃 = 0 . 5 0 6 6
𝑋 2 = 2 . 0 8 and 𝑃 = 0 . 1 4 8 9 𝑋 2 = 0 . 0 0 and 𝑃 = 1 . 0 0 0 0