[Effects of citric acid and tetracycline HCL treatment on periodontal healing].

The aim of the present study was to examine if a new connective tissue attachment is established following citric acid and tetracycline HCI treatment of roots, surgically deprived of its attachment apparatus. The 2. and 3. premolars of three dogs were used. After elevation of mucoperiostal flaps alveolar bone was removed extending a level of 2/3 of the roots. Then, teeth were treated with %1 citric acid PH 1 and Tetracycline HCI (Aquas solution) for 3 minutes and 4 teeth were used as control. After the 21 days of healing period the groups were evaluated histopathologically. The results indicate that citric acid and tetracycline treatment increase the amount of new attachment, inhibit the down growth of the dento gingival epithelium, allowing more time for the repopulation of periodontal ligament cells on the root surfaces.