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Table 3 Intraclass correlation coefficient (ICC) in MZ, DZ, and sibling groups

From: Twin study—genetic comparison of matrix versus intramatrix rotation in the mandible and three different occlusal planes

Variables ICCMZ ICCDZ ICCSib
Bisected OP (to SN) 0.83*** 0.64* 0.62**
Bisected OP (to FH) 0.85*** 0.35 0.48
Functional OP (to SN) 0.75*** 0.49 0.57
Functional OP (to FH) 0.79*** 0.41 0.36
MM bisector OP (to SN) 0.87*** 0.66* 0.68*
MM bisector OP (to FH) 0.86*** 0.59 0.51
Mn. plane angle (to SN): MR 0.87*** 0.62 0.55
Mn. plane angle (to FH) 0.86*** 0.49 0.41
Palatal plane angle (to SN) 0.82*** 0.48 0.65*
Palatal plane angle (to FH) 0.82*** 0.53 0.53*
Corpus axis (to SN): TR 0.85*** 0.61 0.45
Corpus axis (to FH) 0.81*** 0.51 0.24
Corpus axis (to MP): IR 0.74** 0.67* 0.24
  1. MZ Monozygotic twin, DZ Dizygotic twin, Sib Sibling, OP Occlusal plane, SN SN plane, FH FH plane, MP Mandibular plane, MR Matrix rotation, TR Total rotation, IR Intramatrix rotation
  2. *P < .05, **P < .01, ***P < .001