“Histological Assessment of Albino Rats Periodontal ligament in different ages comparing its width with human”

Abstract

The periodontal ligament is a fibrous connective tissue that is highly innervated and vascularized. Periodontal ligament connects the root of teeth with the alveolar bone. Aging, which we broadly define as the time-dependent functional decline that affects most living organisms, has attracted curiosity and excited imagination throughout the history of human kind. One of the few areas in which reasonable progress is being made in the age-related changes is connective tissue. Among aged connective tissues is periodontal ligament, The morphology of the Periodontal ligament changes as age increases. Aim of the study: This Study aimed to assess the histological changes of periodontal ligament in different ages of albino rats and correlating these changes with corresponding human ages. This was achieved by: 1-Light microscope: a) Routine histological examination of specimens from rats stained by hematoxylin and eosin. b) Special staining techniques of specimens from rats to examine ground substance and collagen by PAS and Masson’s trichrome respectively. 2-Radiographically: