The aim of this study is to investigate epidemiology and treatment possibilities of black stains, with the assessment of a possible correlation with patients' dietary habits.~Patients will be randomly divided into three groups. For each group, clinical evaluation will be performed at the study begin, after 2 and after 6 months.~At the study begin, evaluation of black stains with Gasparetto's classification will be assessed; then professional oral hygiene with ultrasonic scaler will be performed, plus glycine and polish; then, products for home oral care will be given to patients, depending on the groups. The clinical situation will be re-evaluated after 2 and after 6 months.~Home oral care will be performed as follows:~Group 1: patients will use 2 Forhans GengiFor tables (between foods) and Forhans Scudo Naturale toothpaste containing lactoferrin.~Group 2: patients will use Biorepair Peribioma chewing-gum for 10 minutes/day and Biorepair Peribioma toothpaste containing probiotics.~Group 3: patients will choose the best product for their home oral care.
The aim of this study is to investigate epidemiology and treatment possibilities of black stains, with the assessment of a possible correlation with patients' dietary habits.~Patients will be randomly divided into three groups. For each group, clinical evaluation will be performed at the study begin, after 2 and after 6 months.~At the study begin, evaluation of black stains with Gasparetto's classification will be assessed; then professional oral hygiene with ultrasonic scaler will be performed, plus glycine and polish; then, products for home oral care will be given to patients, depending on the groups. The clinical situation will be re-evaluated after 2 and after 6 months. Home oral care will be performed with different products, containing lactoferrin (group 1) and probiotics (group 2). The control group (Group 3) will use normal products.