Photoelastic Stress Analysis Surrounding Implant-Supported Prosthesis and Alveolar Ridge on Mandibular Overdentures

Table 2

Averages of the relative tensions (fringes/cm number) in the edges of the implants, corresponding to the interactions, system apparel (implant system Type) × angle of incidence of the force (𝑛=03) and system apparel × place of incidence of the force (𝑛=02).

	Support/Group	Angle of Load*		Place of Load**
		Perpendicular	Inclined	1st Pm	2nd Pm	1st M
01	T (Ridge)	0.63	0.83	0.31	0.94	0.94
02	F (Ridge)	2.50	1.04	1.56	1.88	1.88
03	3 “O” (Ridge)	1.25	1.25	0.63	1.25	1.88
04	2 ERAs + clip (Ridge)	1.25	1.25	0.94	0.94	1.88
05	2 ERAs no clip (Ridge)	1.25	1.46	0.94	1.25	1.88
06	(“O” CaL) (ERA CaR) (Ridge)	1.46	2.29	1.88	1.88	1.88

*Tukey (5%) = 1.205 (interaction system apparel × angle of incidence of the force). Letters for comparisons a to c, when same, averages are similar.
**Tukey (5%) = 1.604 (interaction system apparel × place of incidence of the force). Letter for comparison d, when equal, averages are similar.