Table 3-8: Result on crack length per area for diffused stained mesocracks (DSM).
                            Diffused stained mesocracks (mm/mm2) Far                                                       Near
          Hole
          Type          Mean        Std. Dev       Mean       Std. Dev
          Control         0.19         0.11         0.12         0.08
          Drilled         0.11         0.07         0.1          0.06
          Foramen         0.11         0.07         0.26         0.19

Intra-Osteonal microcracks

       Arc length per area is the measure corresponding to this type of damage. For the case of intra-osteonal microcrack and the interaction of hole type, proximity to the hole and strain level, there is no significant ANOVA (P=0.4896). After the strain level factor is eliminated from the analyses, significance results from the interaction of hole type and proximity to the hole (P=0.0165). The single ANOVA for hole type is low but not significant (P=0.0671), as expected, the single significance analysis for intra-osteonal cracks and proximity to the hole is relevant (P=0.0007). As a consequence Fisher's PLSD test for proximity to the hole uncovers a significant value between near and far regions (P=0.0002) (Figure 3-11), where more cracks of this type are found in the near regions, or the regions closest to the holes.

       The low non-significant value in concerning the hole type, further suggests that additional analysis is necessary. Effectively, Fisher's PLSD uncovers a significance between foramen and control sections (P= 0.0067) and between foramen and drilled sections (P= 0.0192) (Figure 3-12). In both cases the foramen section shows more intraosteonal microcracks (10M), or arc length per area than the drilled and the control sections. There is no significant discrepancy between drill and control sections, though the drill section exposes more length per area of this type of damage. Far away from the