char = A;code = 65 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = s;code = 115 char = p;code = 112 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = s;code = 115 char = t;code = 116 char = u;code = 117 char = d;code = 100 char = y;code = 121 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = n;code = 110 char = a;code = 97 char = t;code = 116 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = r;code = 114 char = c;code = 99 char = u;code = 117 char = r;code = 114 char = y;code = 121 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = p;code = 112 char = o;code = 111 char = s;code = 115 char = u;code = 117 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = n;code = 110 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = a;code = 97 char = m;code = 109 char = a;code = 97 char = l;code = 108 char = g;code = 103 char = a;code = 97 char = m;code = 109 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = u;code = 117 char = t;code = 116 char = i;code = 105 char = s;code = 115 char = m;code = 109 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = i;code = 105 char = t;code = 116 char = y;code = 121 char = .;code = 46 result sql = A prospective study of prenatal mercury exposure from maternal dental amalgams and autism severity.
A prospective study of prenatal mercury exposure from maternal dental amalgams and autism severity.char = D;code = 68 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = a;code = 97 char = m;code = 109 char = a;code = 97 char = l;code = 108 char = g;code = 103 char = a;code = 97 char = m;code = 109 char = s;code = 115 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = 5;code = 53 char = 0;code = 48 char = %;code = 37 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = r;code = 114 char = c;code = 99 char = u;code = 117 char = r;code = 114 char = y;code = 121 char = ;code = 32 char = (;code = 40 char = H;code = 72 char = g;code = 103 char = );code = 41 char = ;code = 32 char = h;code = 104 char = a;code = 97 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = u;code = 117 char = s;code = 115 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = i;code = 105 char = s;code = 115 char = t;code = 116 char = r;code = 114 char = y;code = 121 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = s;code = 115 char = t;code = 116 char = ;code = 32 char = 1;code = 49 char = 5;code = 53 char = 0;code = 48 char = ;code = 32 char = y;code = 121 char = e;code = 101 char = a;code = 97 char = r;code = 114 char = s;code = 115 char = ,;code = 44 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = H;code = 72 char = g;code = 103 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = p;code = 112 char = o;code = 111 char = s;code = 115 char = u;code = 117 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = d;code = 100 char = u;code = 117 char = r;code = 114 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = k;code = 107 char = e;code = 101 char = y;code = 121 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = v;code = 118 char = e;code = 101 char = l;code = 108 char = o;code = 111 char = p;code = 112 char = m;code = 109 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = p;code = 112 char = e;code = 101 char = r;code = 114 char = i;code = 105 char = o;code = 111 char = d;code = 100 char = s;code = 115 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = s;code = 115 char = s;code = 115 char = o;code = 111 char = c;code = 99 char = i;code = 105 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = a;code = 97 char = u;code = 117 char = t;code = 116 char = i;code = 105 char = s;code = 115 char = m;code = 109 char = ;code = 32 char = s;code = 115 char = p;code = 112 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = r;code = 114 char = u;code = 117 char = m;code = 109 char = ;code = 32 char = d;code = 100 char = i;code = 105 char = s;code = 115 char = o;code = 111 char = r;code = 114 char = d;code = 100 char = e;code = 101 char = r;code = 114 char = s;code = 115 char = ;code = 32 char = (;code = 40 char = A;code = 65 char = S;code = 83 char = D;code = 68 char = s;code = 115 char = );code = 41 char = .;code = 46 char = ;code = 32 char = T;code = 84 char = h;code = 104 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = s;code = 115 char = t;code = 116 char = u;code = 117 char = d;code = 100 char = y;code = 121 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = a;code = 97 char = m;code = 109 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = c;code = 99 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = H;code = 72 char = g;code = 103 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = p;code = 112 char = o;code = 111 char = s;code = 115 char = u;code = 117 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = n;code = 110 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = a;code = 97 char = m;code = 109 char = a;code = 97 char = l;code = 108 char = g;code = 103 char = a;code = 97 char = m;code = 109 char = s;code = 115 char = ;code = 32 char = d;code = 100 char = u;code = 117 char = r;code = 114 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = c;code = 99 char = y;code = 121 char = ;code = 32 char = a;code = 97 char = m;code = 109 char = o;code = 111 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = 1;code = 49 char = 0;code = 48 char = 0;code = 48 char = ;code = 32 char = q;code = 113 char = u;code = 117 char = a;code = 97 char = l;code = 108 char = i;code = 105 char = f;code = 102 char = y;code = 121 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = p;code = 112 char = a;code = 97 char = r;code = 114 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = i;code = 105 char = p;code = 112 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = b;code = 98 char = o;code = 111 char = r;code = 114 char = n;code = 110 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = t;code = 116 char = w;code = 119 char = e;code = 101 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = 1;code = 49 char = 9;code = 57 char = 9;code = 57 char = 0;code = 48 char = -;code = 45 char = 1;code = 49 char = 9;code = 57 char = 9;code = 57 char = 9;code = 57 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = d;code = 100 char = i;code = 105 char = a;code = 97 char = g;code = 103 char = n;code = 110 char = o;code = 111 char = s;code = 115 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = D;code = 68 char = S;code = 83 char = M;code = 77 char = -;code = 45 char = I;code = 73 char = V;code = 86 char = ;code = 32 char = a;code = 97 char = u;code = 117 char = t;code = 116 char = i;code = 105 char = s;code = 115 char = m;code = 109 char = ;code = 32 char = (;code = 40 char = s;code = 115 char = e;code = 101 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = );code = 41 char = ;code = 32 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = A;code = 65 char = S;code = 83 char = D;code = 68 char = ;code = 32 char = (;code = 40 char = m;code = 109 char = i;code = 105 char = l;code = 108 char = d;code = 100 char = );code = 41 char = .;code = 46 char = ;code = 32 char = L;code = 76 char = o;code = 111 char = g;code = 103 char = i;code = 105 char = s;code = 115 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = s;code = 115 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = a;code = 97 char = l;code = 108 char = y;code = 121 char = s;code = 115 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = (;code = 40 char = a;code = 97 char = g;code = 103 char = e;code = 101 char = ,;code = 44 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = d;code = 100 char = e;code = 101 char = r;code = 114 char = ,;code = 44 char = ;code = 32 char = r;code = 114 char = a;code = 97 char = c;code = 99 char = e;code = 101 char = ,;code = 44 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = c;code = 99 char = y;code = 121 char = ;code = 32 char = a;code = 97 char = d;code = 100 char = j;code = 106 char = u;code = 117 char = s;code = 115 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = );code = 41 char = ;code = 32 char = b;code = 98 char = y;code = 121 char = ;code = 32 char = q;code = 113 char = u;code = 117 char = i;code = 105 char = n;code = 110 char = t;code = 116 char = i;code = 105 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = n;code = 110 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = a;code = 97 char = m;code = 109 char = a;code = 97 char = l;code = 108 char = g;code = 103 char = a;code = 97 char = m;code = 109 char = s;code = 115 char = ;code = 32 char = d;code = 100 char = u;code = 117 char = r;code = 114 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = c;code = 99 char = y;code = 121 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = v;code = 118 char = e;code = 101 char = a;code = 97 char = l;code = 108 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = r;code = 114 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = a;code = 97 char = u;code = 117 char = t;code = 116 char = i;code = 105 char = s;code = 115 char = m;code = 109 char = :;code = 58 char = A;code = 65 char = S;code = 83 char = D;code = 68 char = ;code = 32 char = (;code = 40 char = s;code = 115 char = e;code = 101 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = :;code = 58 char = m;code = 109 char = i;code = 105 char = l;code = 108 char = d;code = 100 char = );code = 41 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = a;code = 97 char = b;code = 98 char = o;code = 111 char = u;code = 117 char = t;code = 116 char = ;code = 32 char = 1;code = 49 char = ;code = 32 char = (;code = 40 char = n;code = 110 char = o;code = 111 char = ;code = 32 char = e;code = 101 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = );code = 41 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = <;code = 60 char = ;code = 32 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = =;code = 61 char = 5;code = 53 char = ;code = 32 char = a;code = 97 char = m;code = 109 char = a;code = 97 char = l;code = 108 char = g;code = 103 char = a;code = 97 char = m;code = 109 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = c;code = 99 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = >;code = 62 char = ;code = 32 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = =;code = 61 char = 6;code = 54 char = ;code = 32 char = a;code = 97 char = m;code = 109 char = a;code = 97 char = l;code = 108 char = g;code = 103 char = a;code = 97 char = m;code = 109 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = S;code = 83 char = u;code = 117 char = b;code = 98 char = j;code = 106 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = >;code = 62 char = ;code = 32 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = =;code = 61 char = 6;code = 54 char = ;code = 32 char = a;code = 97 char = m;code = 109 char = a;code = 97 char = l;code = 108 char = g;code = 103 char = a;code = 97 char = m;code = 109 char = s;code = 115 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = 3;code = 51 char = .;code = 46 char = 2;code = 50 char = -;code = 45 char = f;code = 102 char = o;code = 111 char = l;code = 108 char = d;code = 100 char = ;code = 32 char = s;code = 115 char = i;code = 105 char = g;code = 103 char = n;code = 110 char = i;code = 105 char = f;code = 102 char = i;code = 105 char = c;code = 99 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = m;code = 109 char = o;code = 111 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = l;code = 108 char = i;code = 105 char = k;code = 107 char = e;code = 101 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = ;code = 32 char = d;code = 100 char = i;code = 105 char = a;code = 97 char = g;code = 103 char = n;code = 110 char = o;code = 111 char = s;code = 115 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = a;code = 97 char = u;code = 117 char = t;code = 116 char = i;code = 105 char = s;code = 115 char = m;code = 109 char = ;code = 32 char = (;code = 40 char = s;code = 115 char = e;code = 101 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = );code = 41 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = m;code = 109 char = p;code = 112 char = a;code = 97 char = r;code = 114 char = i;code = 105 char = s;code = 115 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = A;code = 65 char = S;code = 83 char = D;code = 68 char = ;code = 32 char = (;code = 40 char = m;code = 109 char = i;code = 105 char = l;code = 108 char = d;code = 100 char = );code = 41 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = a;code = 97 char = n;code = 110 char = ;code = 32 char = s;code = 115 char = u;code = 117 char = b;code = 98 char = j;code = 106 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = <;code = 60 char = ;code = 32 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = =;code = 61 char = 5;code = 53 char = ;code = 32 char = a;code = 97 char = m;code = 109 char = a;code = 97 char = l;code = 108 char = g;code = 103 char = a;code = 97 char = m;code = 109 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = D;code = 68 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = a;code = 97 char = m;code = 109 char = a;code = 97 char = l;code = 108 char = g;code = 103 char = a;code = 97 char = m;code = 109 char = ;code = 32 char = p;code = 112 char = o;code = 111 char = l;code = 108 char = i;code = 105 char = c;code = 99 char = i;code = 105 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = s;code = 115 char = h;code = 104 char = o;code = 111 char = u;code = 117 char = l;code = 108 char = d;code = 100 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = H;code = 72 char = g;code = 103 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = p;code = 112 char = o;code = 111 char = s;code = 115 char = u;code = 117 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = w;code = 119 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = d;code = 100 char = u;code = 117 char = r;code = 114 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = c;code = 99 char = h;code = 104 char = i;code = 105 char = l;code = 108 char = d;code = 100 char = -;code = 45 char = b;code = 98 char = e;code = 101 char = a;code = 97 char = r;code = 114 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = a;code = 97 char = g;code = 103 char = e;code = 101 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = o;code = 111 char = s;code = 115 char = s;code = 115 char = i;code = 105 char = b;code = 98 char = i;code = 105 char = l;code = 108 char = i;code = 105 char = t;code = 116 char = y;code = 121 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = s;code = 115 char = u;code = 117 char = b;code = 98 char = s;code = 115 char = e;code = 101 char = q;code = 113 char = u;code = 117 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = f;code = 102 char = e;code = 101 char = t;code = 116 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = p;code = 112 char = o;code = 111 char = s;code = 115 char = u;code = 117 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = d;code = 100 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = u;code = 117 char = t;code = 116 char = c;code = 99 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = s;code = 115 char = .;code = 46 char = <;code = 60 char = b;code = 98 char = r;code = 114 char = /;code = 47 char = >;code = 62 result sql = Dental amalgams containing 50% mercury (Hg) have been used in dentistry for the last 150 years, and Hg exposure during key developmental periods was associated with autism spectrum disorders (ASDs). This study examined increased Hg exposure from maternal dental amalgams during pregnancy among 100 qualifying participants born between 1990-1999 and diagnosed with DSM-IV autism (severe) or ASD (mild). Logistic regression analysis (age, gender, race, and region of residency adjusted) by quintile of maternal dental amalgams during pregnancy revealed the ratio of autism:ASD (severe:mild) were about 1 (no effect) for < or =5 amalgams and increased for > or =6 amalgams. Subjects with > or =6 amalgams were 3.2-fold significantly more likely to be diagnosed with autism (severe) in comparison to ASD (mild) than subjects with < or =5 amalgams. Dental amalgam policies should consider Hg exposure in women before and during the child-bearing age and the possibility of subsequent fetal exposure and adverse outcomes.
Publication: Acta Neurobiol Exp (Wars) 2009 ;69(2)::189-97.
Publication Date: 2009
Study Author(s): Geier, David A;Kern, Janet K;Geier, Mark R;
Institution: Institute of Chronic Illnesses, Inc., Silver Spring, Maryland, USA.
Shortcut link to this study:
Dental amalgams containing 50% mercury (Hg) have been used in dentistry for the last 150 years, and Hg exposure during key developmental periods was associated with autism spectrum disorders (ASDs). This study examined increased Hg exposure from maternal dental amalgams during pregnancy among 100 qualifying participants born between 1990-1999 and diagnosed with DSM-IV autism (severe) or ASD (mild). Logistic regression analysis (age, gender, race, and region of residency adjusted) by quintile of maternal dental amalgams during pregnancy revealed the ratio of autism:ASD (severe:mild) were about 1 (no effect) for < or =5 amalgams and increased for > or =6 amalgams. Subjects with > or =6 amalgams were 3.2-fold significantly more likely to be diagnosed with autism (severe) in comparison to ASD (mild) than subjects with < or =5 amalgams. Dental amalgam policies should consider Hg exposure in women before and during the child-bearing age and the possibility of subsequent fetal exposure and adverse outcomes.
PMID: 19593333