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Periodontal healing following experimental injury to root surfaces of human teeth
Author(s) -
HELLDÉN LEIF
Publication year - 1972
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/j.1600-0722.1972.tb00282.x
Subject(s) - cementum , dentistry , dental cementum , dental alveolus , dentin , medicine , wound healing , vestibular system , permanent teeth , root canal , orthodontics , surgery , radiology
– The healing of mechanically traumatized alveolar bone, periodontal membrane, cementum and dentin was studied in relation to the vitality of the tooth. Cavities were made in the vestibular root surfaces of 88 human teeth (44 vital teeth, 20 root‐filled teeth and 24 nonvital not‐root‐filled teeth). The cavities were prepared at a distance from the gingival crevices to avoid contamination of the wound from microbial plaque during the healing process. At the end of the observation period (varying between 7 and 593 d) the teeth were removed together with vestibular bone and gingiva and examined histologically. The first sign of cementum formation was seen 23 d after surgery. When the observation period exceeded 40 d, areas of newly formed cellular cementum were noted on the dentin surfaces of most of the teeth. The statistical analysis did not show any differences in healing pattern between the three groups studied.