scholarly journals Periodontal Bone-Ligament-Cementum Regeneration via Scaffolds and Stem Cells

Cells ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 537 ◽  
Author(s):  
Jin Liu ◽  
Jianping Ruan ◽  
Michael D. Weir ◽  
Ke Ren ◽  
Abraham Schneider ◽  
...  
Keyword(s):  
Stem Cells ◽  
Gene Therapy ◽  
Tooth Loss ◽  
Soft Tissues ◽  
Alveolar Bone ◽  
Periodontal Regeneration ◽  
Periodontal Tissues ◽  
Oral And Maxillofacial Region ◽  
And Function ◽  
Bone Remains

Periodontitis is a prevalent infectious disease worldwide, causing the damage of periodontal support tissues, which can eventually lead to tooth loss. The goal of periodontal treatment is to control the infections and reconstruct the structure and function of periodontal tissues including cementum, periodontal ligament (PDL) fibers, and bone. The regeneration of these three types of tissues, including the re-formation of the oriented PDL fibers to be attached firmly to the new cementum and alveolar bone, remains a major challenge. This article represents the first systematic review on the cutting-edge researches on the regeneration of all three types of periodontal tissues and the simultaneous regeneration of the entire bone-PDL-cementum complex, via stem cells, bio-printing, gene therapy, and layered bio-mimetic technologies. This article primarily includes bone regeneration; PDL regeneration; cementum regeneration; endogenous cell-homing and host-mobilized stem cells; 3D bio-printing and generation of the oriented PDL fibers; gene therapy-based approaches for periodontal regeneration; regenerating the bone-PDL-cementum complex via layered materials and cells. These novel developments in stem cell technology and bioactive and bio-mimetic scaffolds are highly promising to substantially enhance the periodontal regeneration including both hard and soft tissues, with applicability to other therapies in the oral and maxillofacial region.

scholarly journals Role of Calprotectin as a Biomarker in Periodontal Disease

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Lili Wei ◽  
Mingwen Liu ◽  
Haofei Xiong
Keyword(s):  
Periodontal Disease ◽  
Calcium Binding ◽  
Alveolar Bone ◽  
Inflammatory Diseases ◽  
Periodontal Tissues ◽  
Adaptive Immune ◽  
S 100 ◽  
And Function ◽  
Plaque Biofilm

Periodontal disease (PD) is a common infectious and inflammatory disease characterised by inflammation of tissues surrounding and supporting the teeth and destruction of the associated alveolar bone, eventually resulting in tooth loss. This disease is caused by periodontopathic bacteria in plaque biofilm and resultant innate and adaptive immune responses in periodontal tissues. Calprotectin (CLP) is a calcium-binding protein of the S-100 protein family and is found to be induced by activated granulocytes, monocytes, and epithelial cells. CLP has been shown to play an important role in numerous inflammatory diseases and disorders. Increasing evidence indicates that CLP is involved in the progression of PD, and its levels may be associated with disease severity and outcome of periodontal treatments. This review will summarise recent studies regarding the presence, regulation, and function of CLP in PD. The findings indicate that CLP may be an effective biomarker for diagnosis and treatment for the PD.

scholarly journals Local Injection of Allogeneic Stem Cells from Apical Papilla Enhanced Periodontal Tissue Regeneration in Minipig Model of Periodontitis

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Guoqing Li ◽  
Nannan Han ◽  
Xiuli Zhang ◽  
Haoqing Yang ◽  
Yangyang Cao ◽  
...  
Keyword(s):  
Stem Cells ◽  
Tissue Regeneration ◽  
Alveolar Bone ◽  
Local Injection ◽  
Swine Model ◽  
Periodontal Tissue ◽  
Clinical Assessments ◽  
Periodontal Tissues ◽  
Periodontal Tissue Regeneration ◽  
Apical Papilla

Background. Discovering suitable seeding cells and simple application technique will be beneficial for MSC-mediated treatment of periodontitis. Stem cells from apical papilla (SCAPs) might be the candidate seeding cell for the periodontal tissues regeneration based on their origin and characters. In this research, we investigated the effect of SCAPs on periodontal tissue regeneration in swine by local injection. Methods. We established experimental periodontitis model in miniature pigs and then treated them with SCAPs by local injection. Clinical assessments, computed tomography (CT) scanning, histologic examination, and quantitative measurements were used to evaluate the effect of periodontal tissues regeneration. Results. At 12 weeks after injection, clinical assessments showed that probing depth, gingival recession, and attachment loss values were 5.44±0.77 mm versus 7.33±1.0 mm (p<0.01), 2.33±0.33 mm versus 2.11±0.69 mm (p>0.05), and 7.78±0.84 mm versus 9.44±1.07 mm (p<0.01) in SCAPs group and 0.9% NaCl group, respectively. CT scan results showed a significant increase of 12.86 mm3 alveolar bone regeneration in SCAPs group compared with 0.9% NaCl group. In addition, histopathology results demonstrated remarkable regeneration in SCAPs group, whereas regeneration of periodontal tissue was hardly found in 0.9% NaCl group. Conclusion. Local injection of SCAPs could effectively restore tissue defects brought about by periodontitis in the swine model. Thus, SCAPs, as an easily accessible dental-deriving stem cell, may serve as an alternative application for periodontitis treatment.

scholarly journals Stem Cells for Periodontal Regeneration

2013 ◽  
Vol 16 (1) ◽  
pp. 7-11 ◽  
Author(s):  
A. Pejcic ◽  
D. Kojovic ◽  
D. Mirkovic ◽  
I. Minic
Keyword(s):  
Stem Cells ◽  
Growth Factors ◽  
Surgical Procedures ◽  
Adult Stem Cells ◽  
Periodontal Regeneration ◽  
Human Stem Cells ◽  
Barrier Membranes ◽  
Periodontal Tissues ◽  
Grafting Materials ◽  
Potential Use

Abstract Periodontal regeneration is considered to be biologically possible but clinically unpredictable. In periodontitis, inflammation manifests clinically as loss of supporting periodontal tissues and regeneration of damaged tissue is the main goal of treatment. For decades, periodontists have sought to repair the damage through a variety of surgical procedures, and use of grafting materials and growth factors, and of barrier membranes. Reports have emerged that demonstrate which populations of adult stem cells reside in the periodontal ligaments of humans and other animals. This opens the way for new cell-based therapies for perio-dontal regeneration. This review provides an overview of adult human stem cells and their potential use in perio-dontal regeneration.

scholarly journals The expression levels of MicroRNA-146a, RANKL and OPG after non-surgical periodontal treatment

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Mandana Sattari ◽  
Ramezan Ali Taheri ◽  
Reza ArefNezhad ◽  
Hossein Motedayyen
Keyword(s):  
Healthy Subjects ◽  
Soft Tissues ◽  
Alveolar Bone ◽  
Periodontal Treatment ◽  
Control Group ◽  
Mrna Levels ◽  
Clinical Attachment Loss ◽  
Periodontal Tissues ◽  
Group A ◽  
Group B

Abstract Objective MicroRNA-146a (miR-146a) is a regulator of inflammatory response. Periodontitis is a disease with immune pathophysiology of the periodontium in which the inflammation results in the destruction of the soft tissues and alveolar bone. Therefore, the aim of this study was to investigate the expressions of miR-146a, OPG, and RANKL in diseased and healthy periodontal tissues to understand whether miR-146a expression level may associate with OPG and RANKL mRNA levels and OPG/RANKL ratio after non-surgical periodontal treatment. Methods The levels of miR-146a, RANKL, and OPG in gingival tissues from patients with generalized periodontitis stages II and III and grades A and B (n = 15, group A), patients with generalized periodontitis stages III and IV and grade C (n = 15, group B), and healthy individuals (n = 10) were determined by real-time PCR. The associations of miR-146a expression with OPG and RANKL levels were evaluated. Results The levels of miR-146a in two subgroups within periodontitis patients were significantly higher than healthy subjects (P < 0.0001). MiR-146a showed the increased level in group A of patients compared with group B (P < 0.05). Clinical parameters such as probing depth (PD) and clinical attachment loss (CAL) were significantly higher in patients than control group (P < 0.05). The levels of OPG and RANKL were increased in patients compared with healthy subjects, although the elevated levels were not statistically significant. MiR-146a was not associated with OPG and RANKL levels and OPG/RANKL ratio. Conclusions The results of this study failed to show the associations of miR-146a level with OPG and RANKL levels and OPG/RANKL ratio in periodontitis after non-surgical periodontal treatment.

scholarly journals Are Sphingolipids and Serine Dipeptide Lipids Underestimated Virulence Factors ofPorphyromonas gingivalis?

2018 ◽  
Vol 86 (7) ◽  
Author(s):  
Ingar Olsen ◽  
Frank C. Nichols
Keyword(s):  
Virulence Factors ◽  
Alveolar Bone ◽  
Periodontal Pathogen ◽  
Cellular Functions ◽  
Content Type ◽  
Periodontal Tissues ◽  
Host Interaction ◽  
Anionic Polysaccharides ◽  
Surface Polysaccharides ◽  
And Function

ABSTRACTThe keystone periodontal pathogenPorphyromonas gingivalisproduces phosphorylated dihydroceramide lipids (sphingolipids) such as phosphoethanolamine dihydroceramide (PE DHC) and phosphoglycerol dihydroceramide (PG DHC) lipids. Phosphorylated DHCs (PDHCs) fromP. gingivaliscan affect a number of mammalian cellular functions, such as potentiation of prostaglandin secretion from gingival fibroblasts, promotion of RANKL-induced osteoclastogenesis, promotion of apoptosis, and enhancement of autoimmunity. InP. gingivalis, these lipids affect anchoring of surface polysaccharides, resistance to oxidative stress, and presentation of surface polysaccharides (anionic polysaccharides and K-antigen capsule). In addition to phosphorylated dihydroceramide lipids, serine dipeptide lipids ofP. gingivalisare implicated in alveolar bone loss in chronic periodontitis through interference with osteoblast differentiation and function and promotion of osteoclast activity. As a prerequisite for designation as bacterial virulence factors, bacterial sphingolipids and serine dipeptide lipids are recovered in gingival/periodontal tissues, tooth calculus, human blood, vascular tissues, and brain. In addition toP. gingivalis, other bacteria of the generaBacteroides,Parabacteroides,Porphyromonas,Tannerella, andPrevotellaproduce sphingolipids and serine dipeptide lipids. The contribution of PDHCs and serine dipeptide lipids to the pathogenesis of periodontal and extraoral diseases may be an underappreciated area in microbe-host interaction and should be more intensively investigated.

scholarly journals Selected Nanomaterials’ Application Enhanced with the Use of Stem Cells in Acceleration of Alveolar Bone Regeneration during Augmentation Process

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1216 ◽  
Author(s):  
Wojciech Zakrzewski ◽  
Maciej Dobrzynski ◽  
Zbigniew Rybak ◽  
Maria Szymonowicz ◽  
Rafal J. Wiglusz
Keyword(s):  
Stem Cells ◽  
Tissue Regeneration ◽  
Alveolar Bone ◽  
Regenerative Process ◽  
Bony Tissue ◽  
Signalling Molecules ◽  
Structural Support ◽  
Periodontal Tissues ◽  
Whole Process ◽  
Regeneration Of Bone Tissue

Regenerative properties are different in every human tissue. Nowadays, with the increasing popularity of dental implants, bone regenerative procedures called augmentations are sometimes crucial in order to perform a successful dental procedure. Tissue engineering allows for controlled growth of alveolar and periodontal tissues, with use of scaffolds, cells, and signalling molecules. By modulating the patient’s tissues, it can positively influence poor integration and healing, resulting in repeated implant surgeries. Application of nanomaterials and stem cells in tissue regeneration is a newly developing field, with great potential for maxillofacial bony defects. Nanostructured scaffolds provide a closer structural support with natural bone, while stem cells allow bony tissue regeneration in places when a certain volume of bone is crucial to perform a successful implantation. Several types of selected nanomaterials and stem cells were discussed in this study. Their use has a high impact on the efficacy of the current and future procedures, which are still challenging for medicine. There are many factors that can influence the regenerative process, while its general complexity makes the whole process even harder to control. The aim of this study was to evaluate the effectiveness and advantage of both stem cells and nanomaterials in order to better understand their function in regeneration of bone tissue in oral cavity.

scholarly journals Tooth-Supporting Hard Tissue Regeneration Using Biopolymeric Material Fabrication Strategies

Molecules ◽  
2020 ◽  
Vol 25 (20) ◽  
pp. 4802
Author(s):  
Min Guk Kim ◽  
Chan Ho Park
Keyword(s):  
Tissue Engineering ◽  
Tissue Regeneration ◽  
Alveolar Bone ◽  
Critical Role ◽  
Periodontal Regeneration ◽  
Tissue Formation ◽  
Hard Tissue ◽  
Periodontal Tissues ◽  
Mineralized Tissues ◽  
Biomechanical Forces

The mineralized tissues (alveolar bone and cementum) are the major components of periodontal tissues and play a critical role to anchor periodontal ligament (PDL) to tooth-root surfaces. The integrated multiple tissues could generate biological or physiological responses to transmitted biomechanical forces by mastication or occlusion. However, due to periodontitis or traumatic injuries, affect destruction or progressive damage of periodontal hard tissues including PDL could be affected and consequently lead to tooth loss. Conventional tissue engineering approaches have been developed to regenerate or repair periodontium but, engineered periodontal tissue formation is still challenging because there are still limitations to control spatial compartmentalization for individual tissues and provide optimal 3D constructs for tooth-supporting tissue regeneration and maturation. Here, we present the recently developed strategies to induce osteogenesis and cementogenesis by the fabrication of 3D architectures or the chemical modifications of biopolymeric materials. These techniques in tooth-supporting hard tissue engineering are highly promising to promote the periodontal regeneration and advance the interfacial tissue formation for tissue integrations of PDL fibrous connective tissue bundles (alveolar bone-to-PDL or PDL-to-cementum) for functioning restorations of the periodontal complex.

scholarly journals Preliminary Findings of α-Actinin-3 Gene Distribution in Elite Turkish Wind Surfers

2013 ◽  
Vol 16 (1) ◽  
pp. 69-72 ◽  
Author(s):  
K Ulucan ◽  
S Göle ◽  
N Altindas ◽  
A.I. Güney
Keyword(s):  
Stem Cells ◽  
Growth Factors ◽  
Surgical Procedures ◽  
Adult Stem Cells ◽  
Periodontal Regeneration ◽  
Human Stem Cells ◽  
Barrier Membranes ◽  
Periodontal Tissues ◽  
Grafting Materials ◽  
Potential Use

Abstract Periodontal regeneration is considered to be biologically possible but clinically unpredictable. In periodontitis, inflammation manifests clinically as loss of supporting periodontal tissues and regeneration of damaged tissue is the main goal of treatment. For decades, periodontists have sought to repair the damage through a variety of surgical procedures, and use of grafting materials and growth factors, and of barrier membranes. Reports have emerged that demonstrate which populations of adult stem cells reside in the periodontal ligaments of humans and other animals. This opens the way for new cell-based therapies for perio-dontal regeneration. This review provides an overview of adult human stem cells and their potential use in perio-dontal regeneration.

scholarly journals Multidisciplinary Treatment Options of Tooth Avulsion Considering Different Therapy Concepts

2014 ◽  
Vol 8 (1) ◽  
pp. 180-183
Author(s):  
Eckehard Kostka ◽  
Simon Meissner ◽  
Christian H Finke ◽  
Manlio Mandirola ◽  
Saskia Preissner
Keyword(s):  
Tooth Loss ◽  
Soft Tissues ◽  
Alveolar Bone ◽  
Initial Conditions ◽  
Bone Development ◽  
Treatment Options ◽  
Multidisciplinary Treatment ◽  
Treatment Procedure ◽  
Tooth Avulsion ◽  
Evidence Based Therapy

Background: Avulsion of permanent front teeth is a rare accident, mostly affecting children between seven and nine years of age. Replanted and splinted, these teeth often develop inflammation, severe resorption or ankylosis affecting alveolar bone development and have to be extracted sooner or later. Objectives: The purpose of this study was to evaluate different therapy concepts to create a structured concept for the treatment of avulsions. Results: Based on existing therapy concepts, a concept for different initial conditions (dry time, age, growth, tooth, hard and soft tissues) was developed and is presented here. Conclusion: A great deal of research has been performed during recent years and guidelines for the management of avulsions have been published. With the help of this literature it is possible to identify the best treatment procedure for each tooth. Clinical Relevance: The prognosis of avulsed teeth can be improved by considering evidence-based therapy concepts. Resorption, ankylosis and tooth loss could be minimized.

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