Table 2.
Peak principal condyle strains during mastication on different sides.
| Right condyle strain (osteotomy side) |
Left condyle strain |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Non-osteotomy side chews |
Osteotomy side chews |
Chewing sides combined |
Chewing sides combined |
||||||||||
| I.D. # | L/R/U | εMAX (με) | εMIN (με) | angle (degrees) | εMAX (με) | εMIN (με) | angle (degrees) | εMAX (με) | εMIN (με) | angle (degrees) | εMAX (με) | εMIN (με) | angle (degrees) |
| 3 | 31/20/0 | 207 (62) | −178 (37) | 137(6) | 391 (136) | −216 (46) | 148 (7) | 280 (133) | −193 (44) | 141 (8) | |||
| 5 | 0/0/12 | 119 (7) | −78 (4) | 225 (1) | |||||||||
| 6 | 13/13/0 | 90 (21) | −47 (8) | 189 (23) | 79 (43) | −48 (20) | 173 (34) | 85 (33) | −48 (15) | 181 (25) | |||
| 7 | 11/9/0 | 286 (138) | −82 (34) | 170 (7) | 426 (145) | −115 (40) | 169 (7) | 349 (155) | −97 (39) | 170 (7) | |||
| 9 | 17/3/0 | 401 (81) | −128 (28) | 201 (4) | 352 (33) | −104 (3) | 188 (12) | 394 (77) | −124 (27) | 199 (7) | |||
| 10 | 0/0/20 | 218 (72) | −152 (45) | 229 (7) | |||||||||
| 11 | 0/0/32 | 96 (29) | −71 (21) | 119 (25) | |||||||||
| 12 | 12/10/0 | 578 (158) | −225 (60) | 161 (2) | 485 (98) | −187 (37) | 164 (1) | 535 (140) | −208 (53) | 162 (2) | |||
| 13 | 13/12/0 | 113 (35) | −31 (10) | 143 (7) | 88 (35) | −33 (22) | 154(9) | 101 (37) | −32 (16) | 148 (10) | |||
| 15 | 17/12/0 | 197 (40) | −223 (56) | 234 (3) | 317 (50) | −133 (7) | 151 (2) | 247 (74) | −186 (62) | 200 (41) | |||
| 16 | 11/13/0 | 188 (65) | −119 (48) | 119(15) | 149 (73) | −113 (60) | 116 (16) | 167 (73) | −116 (55) | 118 (14) | |||
| 19 | 9/4/11 | 108 (36) | −57 (21) | 158 (4) | 104 (27) | −47 (14) | 157 (5) | 98 (28) | −47 (17) | 157 (4) | 345 (51) | −600 (99) | 87 (5) |
| 20 | 0/0/14 | 182 (52) | −104 (21) | 175 (9) | 232 (44) | −619 (114) | 112 (2) | ||||||
| 21 | 25/0/9 | 140 (92) | −59 (36) | 167 (23) | 156 (115) | −66 (39) | 169 (23) | ||||||
| 22 | 20/0/18 | 275 (141) | −89 (33) | 175 (8) | 325 (152) | −103 (34) | 174 (9) | 163 (70) | −133 (63) | 119(28) | |||
| 23 | 0/0/37 | 446 (191) | −389 (160) | 219 (4) | 67 (34) | −113 (58) | 115 (9) | ||||||
| 25 | 13/3/0 | 157 (84) | −128 (35) | 135 (9) | 107 (56) | −105 (33) | 124 (15) | 148 (81) | −124 (35) | 133 (11) | 563 (136) | −701 (169) | 123 (2) |
| 26 | 17/5/0 | 170 (54) | −71 (23) | 184 (24) | 308 (125) | −105 (38) | 171 (14) | 203 (95) | −79 (30) | 181 (22) | 525 (101) | −670 (134) | 127 (3) |
| 27 | 22/0/0 | 95 (27) | −254 (59) | 236 (2) | 95 (27) | −254 (59) | 236 (2) | 209 (76) | −375 (114) | 124 (4) | |||
| 28 | 11/4/0 | 115 (27) | −65 (22) | 201 (5) | 40 (31) | −37 (17) | 196 (31) | 95 (44) | −58 (24) | 200 (15) | 269 (82) | −527 (125) | 116 (8) |
| Mean | 208 | −117 | 174 | 237 | −104 | 159 | 217 | −126* | 177*** | 297 | −467* | 115*** | |
| S.D. | (133) | (72) | (34) | (158) | (58) | (23) | (132) | (86) | (35) | (172) | (235) | (13) | |
| Mean | 218 | −113 | 169 | 237 | −104 | 159 | 199 | −145* | 184*** | 297 | −467* | 115*** | |
| S.D. | (143) | (66) | (34) | (158) | (58) | (23) | (126) | (118) | (33) | (172) | (235) | (13) | |
Values are means (standard deviations).
Shaded area is subset of individuals with data from right and left chews or from right and left gauges (paired t-test performed).
εMAX, peak tensile principal strain; εMIN, peak compressive principal strain; angle is degrees of εMIN above the occlusal plane.
*
p < 0.05
***
p <0.001