Table 2.

Principal stress distributions within mandibular bone about the first molar.

Models	Model A		Model B		Model C		Model D
Mandibular regions	1st Principal	3rd Principal	1st Principal	3rd Principal	1st Principal	3rd Principal	1st Principal	3rd Principal
	MPa	MPa	MPa	MPa	MPa	MPa	MPa	MPa
Mesial	0.0678	−0.6858	0.5682	−1.1842	0.5683	−1.2497	0.0476	−2.9229
Distal	0.3240	−1.4606	0.3873	−2.9878	0.1401	−3.4564	0.8327	−4.4230
Lingual	0.4605	−0.2243	1.0551	−0.1918	0.7376	−0.3386	0.9415	−0.1087
Buccal	0.1805	−0.2521	0.3399	−0.8702	0.2673	−0.7362	0.5908	−2.1959