Light and electron microscopic study of the initial attachment of principal fibers to the alveolar bone surface in rat molars

Citation
Mn. Islam et al., Light and electron microscopic study of the initial attachment of principal fibers to the alveolar bone surface in rat molars, J PERIOD RE, 35(6), 2000, pp. 344-351
Citations number
32
Language
INGLESE
art.tipo
Article
Categorie Soggetti
da verificare
Journal title
JOURNAL OF PERIODONTAL RESEARCH
ISSN journal
0022-3484 → ACNP
Volume
35
Issue
6
Year of publication
2000
Pages
344 - 351
Database
ISI
SICI code
0022-3484(200012)35:6<344:LAEMSO>2.0.ZU;2-X
Abstract
This study was designed to observe the principal fibers and alveolar bone i n various developmental stages in rat molars using tight and transmission e lectron microscopy and to elucidate the mechanism of initial principal fibe r attachment to the alveolar bone surface. Maxillary alveolar bone between the 2nd and 3rd molars of 20- and 25-day-old rats was used. A proteoglycan- rich, fiber-poor, and electron dense layer formed on the alveolar bone surf ace before the principal fiber organization. This layer was not seen before principal fibers had started to develop. Principal fibers first contacted and then became embedded in this layer. With further development, new bone deposited on this layer and around already attached principal fibers. These findings suggest that this electron dense, proteoglycan-rich layer may act as an adhesive factor to mediate the initial attachment of principal fiber s to the alveolar bone surface.