Histological, immunohistochemical and radiographic evaluation of Amitriptyline administration on the periodontium of albino rats (An experimental study).

p-value was considered significant at <0.05, highly significant at <0.001 and insignificant at >0.05. 3 Results 3.1 H&E results Histological examination of control group revealed gingival mucosa covered with keratinized stratified squamous epithelium that showed short columnar basal cell layer resting on well-defined basement membrane, polygonal prickle cells and flattened granular cell layer covered by thin and regular esinophilic keratin layer.

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