Fig. 4

Scanning electron micrograph. Optimizing group showing rough, irregular and destruction in the buccal cortical plate (a). The buccal cortical plate in the control group shows a regular and smooth bone surface topography uniform outline of the nutritive canal (arrowhead) (× 500) (b). Generalized roughness and porosity is noted in the buccal cortical plate in GOG group with irregular border of the nutritive canals (arrowhead). Massive abrasion and discontinuation of the bone surface is also observed (× 500) (c,d). the buccal cortical plate in the ExTG shows enhanced bone surface topography and restoration of the normal architecture. Decrease in the surface roughness is noted. Slight irregularities at the internal border of the nutritive canals (× 500) (e,f)