Method of Entry Layout under Synergistic Effects of Abutment Stress and Dynamic Stress

Table 4

Parameters used in the mathematical models.

Parameters	Values
a1	2
a2	15
a3	20.37386
a4	−0.13327
a5	14.62614
b1	0.001379
b2	2.449
b3	−0.5203
P	10
R	40
c1	0.5463
c2	−24.289
c3	270
c4	22.4
γH	15
d1	−0.00075
d2	0.1257
d3	3.437
d4	−0.00335