Ora-Clens 1-TDC Periodontal - Support Healthy Teeth and Gums in Dogs and Cats - Safe and Non-invasive - 120 Capsules Ora-Clens 1-TDC supports healthy teeth and gums in dogs and cats. Ora-Clens 1-TDC Periodontal contains a modified molecule, 1-tetradecanol complex, that is a clinically proven and veterinarian-recommended way to combat periodontal disease It is recommended for natural support of gum tissue and joint health as an anti-inflammatory.