Table 2 Undergrad Education satisfaction comparison of 3 + 4 and 4 + 4 systems for Korean dental students

3.52 (n = 107)

0.793

3.83 (n = 143)

0.831

−2.965

0.003

Course Satisfaction

Natural Sciences

3.51 (n = 99)

1.073

3.78 (n = 132)

0.832

−2.120

0.035

Engineering

3.02 (n = 108)

0.867

3.56 (n = 133)

0.949

−4.590

<  0.001

Medicine

3.94 (n = 108)

0.852

3.18 (n = 117)

0.952

5.223

<  0.001

Humanities

3.61 (n = 109)

0.720

3.41 (n = 120)

0.886

1.937

0.054

Social Sciences

3.47 (n = 109)

0.760

3.25 (n = 120)

0.901

2.023

0.044

Convergence Studies

3.59 (n = 109)

1.020

3.08 (n = 137)

0.802

4.206

<  0.001

Statistics

2.99 (n = 109)

1.084

3.64 (n = 137)

0.855

−5.269

<  0.001

Life Science

3.59 (n = 105)

0.958

3.65 (n = 140)

0.944

−0.485

0.628

Earth Science

2.69 (n = 108)

1.116

2.80 (n = 129)

1.018

− 0.810

0.419