A study of periodontal vascularization 10 different laboratory animals

Abstract
The blood vessels of the periodontium of the rat, mouse, hamster, guinea pig, cat and dog were studied with Wachstein and Meisel's technique for the demonstration of adenosine‐triphosphatase. In all species, a vascular plexus was found in the periodontal ligament, running in a general direction parallel to the long axis of the tooth and located closer to bone than to cementum. There was increased vascularity close to areas of active enamel formation (guinea pig molar and continuous growing incisors of all rodents). In the gingival tissues of all animals studied, an important annular plexus was found close to the epithelial cuff.