Abstract
The aim of this study will be to evaluate qualitatively the periodontal collagen fibers and quantitatively fibroblasts in the periodontium of rats treated with nicotine submitted to systemic supplementation with Coenzyme Q10. Sixty-four male rats (Wistar) will be divided into 4 groups (n=16). Throughout the experiment, animals will receive two subcutaneous injections of either 3mg/kg nico…