نتایج جستجو برای: periodontal ligament
تعداد نتایج: 42509 فیلتر نتایج به سال:
1 attachment, which is lost during disease. This type of regeneration is described by the term 'New attachment'. New attachment is the embedding of new periodontal ligament fibres on to new cementum previously denuded by the periodontal disease. Factors interfering with new attachment are plaque, calculus, infected cementum and alterations in mineral density and composition of root. These obsta...
Natural frequencies and vibration modes of four kinds of teeth were calculated by using a mechanical model. The alveolar bone and the tooth were assumed as rigid bodies, while the periodontal ligament was assumed as an elastic spring. All the natural frequencies were within a range of 1 to 10 kHz. The first natural frequencies of four teeth were about 1.5 kHz, and decreased as the root length d...
Cementum was first described by Denton GB in 1835 as a calcified, avascular mesenchymal tissue that covers the entire root surface. It approximately comprises of 50% of hydroxyappetite and 50% of organic matrix which consist of non collagenous and collagenous proteins. Protein extract of mature cementum promotes cell attachment, migration and stimulates protein synthesis of gingival fibroblast ...
It is challenging to completely and predictably regenerate the missing periodontal tissues caused by trauma or disease. To periodontium, there a need consider several aspects that co-occur with development. This study provides an overview of most up-to-date investigations on characteristics immunomodulatory features Periodontal Ligament Stem Cells (PDLSCs) recent interventions performed using t...
Periodontal regeneration represents the ultimate goal of periodontal therapy. The current regenerative techniques have limited success rates especially in advanced periodontal defects. Currently the research is focused on novel cell-based approaches for periodontal regeneration to overcome the limitations of existing treatment. The human clinical trial on stem cells based periodontal regenerati...
introduction : root-end preparation and restoration with an endodontic material are required when nonsurgical endodontic retreatment has failed or is impossible. the present clinical study reports the treatment outcomes of periradicular surgery using calcium-enriched mixture (cem) cement. materials and methods: a prospective outcome study of periradicular surgery using cem was conducted on 14 p...
background: human dental stem cells have high proliferative potential for self-renewal that is important to the regenerative capacity of the tissue. objective: the aim was to isolate human dental pulp stem cells (dpsc), periodontal ligament stem cells (pdlsc) and periapical follicle stem cells (pafsc) for their potential role in tissue regeneration. materials and methods: in this experimental s...
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