scholarly journals CLINICAL STUDIES OF THE STABILITY AND PROCESS OF OSTEOINTEGRATION OF DENTAL IMPLANTS DURING IMMEDIATE AND DELAYED IMPLANTATION

2021 ◽  
Vol 16 (4) ◽  
pp. 97-103
Author(s):  
Petr Grishin ◽  
Elena Kalinnikova
Keyword(s):  
Dental Implants ◽  
Clinical Studies ◽  
Alveolar Bone ◽  
Primary Stability ◽  
Implant Surface ◽  
Delayed Implantation ◽  
Clinical Observations ◽  
Osseointegrated Implants ◽  
Surface Microstructures ◽  
The Stability

Subject. Analysis of the literature confirms that there is a definite relationship between surface microstructure, implant geometry, thread design and primary stability, and osseointegration processes. To date, a sufficient number of works on direct and delayed implantation have accumulated. However, there is not enough convincing clinical data on the quantitative assessment of primary stability at different periods of the osseointegration process. Despite the existence of experimental and clinical observations, it seems impossible to make a definite judgment about the mechanism of such a relationship. This chapter presents clinical studies of the stability and osseointegration of dental implants when performing, according to the indications, in 414 patients of direct and delayed implantation using implant systems with different surface microstructures. Goal. Conduct clinical studies of quantitative indicators of stability and osseointegration of implants with different microstructure of the surface during direct and delayed implantation. Methodology. For the clinical study of primary stability and the process of osseointegration during direct and delayed implantation with immediate functional loading, implant systems with different surface microstructures were used: Alfa Bio, Mis, Astra-Tech, Dentium, Ostem, Antogher, and also Humana Dental with an innovative surface. Osseointegrated implants have been used to achieve a predictable treatment outcome in clinical cases with partial or complete adentia, as well as in the presence of single, included defects. Results. There were no significant differences in stability indicators at the time of implant placement in the alveolar bone, depending on the type of implant and the method of implantation. Conclusions. In the process of integration of the implant into the bone tissue at a later date, the indicators of stability and osseointegration improve. The relationship between the appearance of the implant surface, primary stability and the time of its adaptation was revealed.

scholarly journals The effect of microstructure of the surface, the design and dimension of dental implants on their stability and the process of osteointegration during immediate and delayed implantation. PartII

2021 ◽  
Vol 108 (4) ◽  
pp. 34-38
Author(s):  
P. Grishin ◽  
◽  
E. Mamaeva ◽  
E. Kalinnikova ◽  
A. Kozlov ◽  
...  
Keyword(s):  
Primary Stability ◽  
Implant Surface ◽  
Surface Design ◽  
Resonance Analysis ◽  
Delayed Implantation ◽  
Size Type ◽  
The Stability ◽  
The Moment ◽  
Immediate Implantation

Abstract. This article presents the results of a clinical study of the stability and process of osteointegration implants of 11 known implant dental systems. The effect of the microstructure of 3 types of implant surface (HSTTM, SLA and RBM) and their design features (shape, size, type of carving) on the indicators of their stability and osteointegration process during immediate and delayed implantation with immediate functional load is shown and analyzed. The stability of the implants and the dynamics of the quality of osteointegration were determined by the devices «Osstell Mentor» and «Periotest» in the process of treatment, starting from the moment of implant installation in different eras (2 weeks, 1 month, 2 months and 3 months). 414 patients between the ages of 20 and 70 were monitored. Of these, there are 249 and 165 male women. The average age of the operated patients was: for men – 54 years for women – 49 years. All patients were divided into two groups of the first – 109 patients who after extraction were directly implanted into the hole of the remote tooth with the subsequent immediate load, the second group – 305 patients who were delayed implantation with immediate load. A total of 1,302 implants were installed. The study revealed a link between the type of surface of the implant, primary stability and the time of its osteointegration during certain periods of clinical observation. The results of the study demonstrated the important role of combining microstructure of the surface, design and dimension features, the type of insertion of implants on their primary stability and the process of osteointegration in the conduct of both immediate and delayed implantation. Key words: frequency resonance analysis, damping, stability, osteointegration, fixation, implants, periotestometry, immediate implantation.

scholarly journals The effect of microstructure of the surface, the design and dimension of dental implants on their stability and the process of osteointegration during immediate and delayed implantation

2021 ◽  
Vol 107 (3) ◽  
pp. 58-63
Author(s):  
P. Grishin ◽  
◽  
E. Mamaeva ◽  
E. Kalinnikova ◽  
A. Kozlov ◽  
...  
Keyword(s):  
Primary Stability ◽  
Implant Surface ◽  
Surface Design ◽  
Resonance Analysis ◽  
Delayed Implantation ◽  
Size Type ◽  
The Stability ◽  
The Moment ◽  
Immediate Implantation

Abstract. This article presents the results of a clinical study of the stability and process of osteointegration implants of 11 known implant dental systems. The effect of the microstructure of 3 types of implant surface (HSTTM, SLA and RBM) and their design features (shape, size, type of carving) on the indicators of their stability and osteointegration process during immediate and delayed implantation with immediate functional load is shown and analyzed. The stability of the implants and the dynamics of the quality of osteointegration were determined by the devices «Osstell Mentor» and «Periotest» in the process of treatment, starting from the moment of implant installation in different eras (2 weeks, 1 month, 2 months and 3 months). 414 patients between the ages of 20 and 70 were monitored. Of these, there are 249 and 165 male women. The average age of the operated patients was: for men – 54 years for women – 49 years. All patients were divided into two groups of the first – 109 patients who after extraction were directly implanted into the hole of the remote tooth with the subsequent immediate load, the second group – 305 patients who were delayed implantation with immediate load. A total of 1,302 implants were installed. The study revealed a link between the type of surface of the implant, primary stability and the time of its osteointegration during certain periods of clinical observation. The results of the study demonstrated the important role of combining microstructure of the surface, design and dimension features, the type of insertion of implants on their primary stability and the process of osteointegration in the conduct of both immediate and delayed implantation. Key words: frequency resonance analysis, damping, stability, osteointegration, fixation, implants, periotestometry, immediate implantation.

scholarly journals Biomechanics in dental implants

2021 ◽  
Vol 7 (3) ◽  
pp. 131-136
Author(s):  
Poonam Prakash ◽  
Ambika Narayanan
Keyword(s):  
Dental Implants ◽  
Fibrous Tissue ◽  
Primary Stability ◽  
Biological Tissues ◽  
Implant Design ◽  
Implant Fixation ◽  
Implant Surface ◽  
Bone Apposition ◽  
Functional Connection ◽  
Secondary Stage

Achieving primary stability in dental implants is crucial factor for accomplishing successful osteointegration with bone. Micro-motions higher than the threshold of 50 to 100 μm can lead to formation of fibrous tissue at the bone-to-implant interface. Therefore, osteointegration may be vitiated due to insufficient primary stability. Osseointegration is defined as a direct and functional connection between the implant biomaterial and the surrounding bone tissue. Osseointegration development requires an initial rigid implant fixation into the bone at the time of surgery and a secondary stage of new bone apposition directly onto the implant surface. Dental implants function to transfer the load to the surrounding biological tissues. Due to the absence of a periodontal ligament, its firm anchorage to bone, various forces acting on it and the presence of prosthetic components, they share a complex biomechanical relationship. The longevity of these osseointegrated implants depend on optimizing these complex interactions. Hence, the knowledge of forces acting on implant, design considerations of implant and bone mechanics is essential to fabricate an optimized implant supported prosthesis.

scholarly journals Full Mouth Rehabilitation with Implant-Supported Prostheses for Severe Periodontitis: A Case Report

2010 ◽  
Vol 4 (1) ◽  
pp. 165-171 ◽  
Author(s):  
Sompop Bencharit ◽  
Debra Schardt-Sacco ◽  
Michael B Border ◽  
Colin P Barbaro
Keyword(s):  
Dental Implants ◽  
Bone Grafting ◽  
Alveolar Bone ◽  
Primary Stability ◽  
Healing Time ◽  
Oral Rehabilitation ◽  
Implant Placement ◽  
Periodontal Inflammation ◽  
Severe Periodontitis ◽  
Full Mouth Rehabilitation

Oral rehabilitation for a patient with severe loss of alveolar bone and soft tissue resulting from severe periodontitis presents a challenge to clinicians. Replacing loosening natural teeth with fixed prostheses supported by dental implants often requires either gingival surgery or bone grafting. The outcome of the bone grafting is sometimes unpredictable and requires longer healing time and/ or multiple surgeries. The presence of periodontal inflammation and periapical lesions often delay the placement of bone grafts as well as dental implants. Here we present a clinical case of a patient undergone full mouth reconstruction with implant-supported fixed prostheses. We demonstrated that early placement of implants (three weeks after extractions) with minimal bone grafting may be an alternative to conventional bone grafting followed by implant placement. We believe that primary stability during implant placement may contribute to our success. In addition, composite resin gingival material may be indicated in cases of large fixed implant prostheses as an alternative to pink porcelain.

scholarly journals Surface Modified Techniques and Emerging Functional Coating of Dental Implants

Coatings ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1012
Author(s):  
Heng Dong ◽  
Hui Liu ◽  
Na Zhou ◽  
Qiang Li ◽  
Guangwen Yang ◽  
...  
Keyword(s):  
Dental Implants ◽  
Alveolar Bone ◽  
Functional Coatings ◽  
Implant Surface ◽  
Functional Coating ◽  
Bioactive Coatings ◽  
Coating Methods ◽  
Surface Modified ◽  
Related Proteins ◽  
Physical And Chemical

Dental implants are widely used in the field of oral restoration, but there are still problems leading to implant failures in clinical application, such as failed osseointegration, marginal bone resorption, and peri-implantitis, which restrict the success rate of dental implants and patient satisfaction. Poor osseointegration and bacterial infection are the most essential reasons resulting in implant failure. To improve the clinical outcomes of implants, many scholars devoted to modifying the surface of implants, especially to preparing different physical and chemical modifications to improve the osseointegration between alveolar bone and implant surface. Besides, the bioactive-coatings to promote the adhesion and colonization of ossteointegration-related proteins and cells also aim to improve the osseointegration. Meanwhile, improving the anti-bacterial performance of the implant surface can obstruct the adhesion and activity of bacteria, avoiding the occurrence of inflammation related to implants. Therefore, this review comprehensively investigates and summarizes the modifying or coating methods of implant surfaces, and analyzes the ossteointegration ability and anti-bacterial characteristics of emerging functional coatings in published references.

Influence of Bisphosphonates on Alveolar Bone Loss Around Osseointegrated Implants

2011 ◽  
Vol 37 (3) ◽  
pp. 335-346 ◽  
Author(s):  
Talal M Zahid ◽  
Bing-Yan Wang ◽  
Robert E Cohen
Keyword(s):  
Dental Implants ◽  
Alveolar Bone ◽  
Smoking Status ◽  
Estimating Equation ◽  
Implant Failure ◽  
Success Rates ◽  
Osseointegrated Implants ◽  
The University ◽  
The Relationship

Abstract The relationship between bisphosphonates (BP) and dental implant failure has not been fully elucidated. The purpose of this retrospective radiographic study was to examine whether patients who take BP are at greater risk of implant failure than patients not using those agents. Treatment records of 362 consecutively treated patients receiving endosseous dental implants were reviewed. The patient population consisted of 227 women and 135 men with a mean age of 56 years (range: 17–87 years), treated in the University at Buffalo Postgraduate Clinic from 1997–2008. Demographic information collected included age, gender, smoking status, as well as systemic conditions and medication use. Implant characteristics reviewed included system, date of placement, date of follow-up radiographs, surgical complications, number of exposed threads, and implant failure. The relationship between BP and implant failure was analyzed using generalized estimating equation (GEE) analysis. Twenty-six patients using BP received a total of 51 dental implants. Three implants failed, yielding success rates of 94.11% and 88.46% for the implant-based and subject-based analyses, respectively. Using the GEE statistical method we found a statistically significant (P  =  .001; OR  =  3.25) association between the use of BP and implant thread exposure. None of the other variables studied were statistically associated with implant failure or thread exposure. In conclusion, patients taking BP may be at higher risk for implant thread exposure.

scholarly journals Application of Periodontal Ligament-Derived Multipotent Mesenchymal Stromal Cell Sheets for Periodontal Regeneration

2019 ◽  
Vol 20 (11) ◽  
pp. 2796 ◽  
Author(s):  
Satoru Onizuka ◽  
Takanori Iwata
Keyword(s):  
Dental Implants ◽  
Mesenchymal Stromal Cells ◽  
Stromal Cells ◽  
Clinical Studies ◽  
Periodontal Ligament ◽  
Alveolar Bone ◽  
Periodontal Regeneration ◽  
Multipotent Mesenchymal Stromal Cells ◽  
Inflammatory Disorder ◽  
Barrier Membranes

Periodontitis is a chronic inflammatory disorder that causes destruction of the periodontal attachment apparatus including alveolar bone, the periodontal ligament, and cementum. Dental implants have been routinely installed after extraction of periodontitis-affected teeth; however, recent studies have indicated that many dental implants are affected by peri-implantitis, which progresses rapidly because of the failure of the immune system. Therefore, there is a renewed focus on periodontal regeneration aroundnatural teeth. To regenerate periodontal tissue, many researchers and clinicians have attempted to perform periodontal regenerative therapy using materials such as bioresorbable scaffolds, growth factors, and cells. The concept of guided tissue regeneration, by which endogenous periodontal ligament- and alveolar bone-derived cells are preferentially proliferated by barrier membranes, has proved effective, and various kinds of membranes are now commercially available. Clinical studies have shown the significance of barrier membranes for periodontal regeneration; however, the technique is indicated only for relatively small infrabony defects. Cytokine therapies have also been introduced to promote periodontal regeneration, but the indications are also for small size defects. To overcome this limitation, ex vivo expanded multipotent mesenchymal stromal cells (MSCs) have been studied. In particular, periodontal ligament-derived multipotent mesenchymal stromal cells are thought to be a responsible cell source, based on both translational and clinical studies. In this review, responsible cell sources for periodontal regeneration and their clinical applications are summarized. In addition, recent transplantation strategies and perspectives about the cytotherapeutic use of stem cells for periodontal regeneration are discussed.

scholarly journals Surface treatment of implants: primary stability

2014 ◽  
Vol 62 (4) ◽  
pp. 357-364
Author(s):  
Nathalia Ferraz OLISCOVICZ ◽  
Ronaldo José da SILVA ◽  
César Penazzo LEPRI ◽  
Élcio MARCANTONIO JUNIOR ◽  
Andréa Cândido dos REIS
Keyword(s):  
Resonance Frequency ◽  
Surface Treatment ◽  
Dental Implants ◽  
Primary Stability ◽  
Titanium Implants ◽  
Artificial Bone ◽  
Wood Substrate ◽  
Significance Level ◽  
Implant Placement ◽  
Osseointegrated Implants

OBJECTIVE: The aim of this study was to analyze the primary stability of dental implants with and without surface treatment, by means of resonance frequency, using different materials as substitutes for human bone substrates for insertion. METHODS: Sixteen external hexagon, cylindrical Conexão(r) titanium implants were used, 11.5 mm long by 3.75 mm wide, as follows: 8 Master Porous (MP), with surface treatment and 8 Master Screw (MS) machined. The implant placement was performed on the following substrates: pork rib bone, wood, artificial bone polyurethane National(r) (40, 20, 15 PCF) and Synbone(r). Primary stability was assessed via resonance frequency using an Osstell Mentor(tm) device. Data were analyzed statistically using ANOVA and Tukey's test, with a significance level of 5%. RESULTS: It was found that although MP and MS have a higher value on all substrates, these were not statistically different between groups (p>0.05), except for polyurethane National(r) 20 PCF. When inserted into the wood substrate and polyurethane National(r) 40 PCF, MP and MS had higher values. MP, when inserted into the pig bone, was also statistically equal to these interactions. CONCLUSION: Despite the continuous development of innovations in the characteristics of implant surfaces to assist with the performance of osseointegrated implants, and the fact that our study has found that the surface treatment had no impact on the primary stability checked using ressonance frequency, there is still very little scientific understanding of these effects.

scholarly journals Peri-Implantitis In Dental Implants: An Updated Review

2015 ◽  
Vol 9 (2) ◽  
pp. 81-84 ◽  
Author(s):  
V Sharma ◽  
A Kumar ◽  
G Bhayana ◽  
A Dahiya ◽  
N Duggal ◽  
...  
Keyword(s):  
Dental Implants ◽  
Bacterial Infections ◽  
Alveolar Bone ◽  
Treatment Options ◽  
Treatment Modalities ◽  
Surgical Trauma ◽  
Implant Surface ◽  
Probing Depth ◽  
Gradual Loss ◽  
Edentulous Patients

ABSTRACT The use of dental implants has revolutionized the treatment of partially and fully edentulous patients today. While in many cases dental implants have been reported to achieve long-term success, these are also not immune from the complicationsincludingperi-implant mucositis and peri-implantitis. Peri-implantitis is an inflammatory process which involves bone loss around osseointegrated implant in function. The etiology of the disease has been attributed to bacterial infections, occlusal overload, surgical trauma, faulty or incorrect prosthetic design and/ or improper implant placement. Diagnosis is based on changes in colour of the gingiva, bleeding and probing depth of peri-implant pockets, suppuration, x-ray and gradual loss of bone height around the tooth. Treatment modalities will differ depending upon whether it is a case of periimplantmucositis or periimplantitis, Therapeutic objectives focus on control of infection, detoxification of the implant surface and regeneration of the alveolar bone. This review article gives a brief description of etiopathogenesis, diagnosis and various treatment options in the management of periimplant disease.

scholarly journals Experimental rationale for autologous modification of dental implants based on nonwoven titanium material with through porosity

2015 ◽  
Vol 96 (6) ◽  
pp. 1000-1003
Author(s):  
A E Shcherbovskikh
Keyword(s):  
Dental Implants ◽  
Primary Stability ◽  
Implant Stability ◽  
Randomised Study ◽  
Bone Modification ◽  
Study Results ◽  
Conventional Technology ◽  
Titanium Material ◽  
Autologous Bone ◽  
The Stability

Aim. To provide the experimental rationale for technology of autologous modification of dental implants based on non-woven titanium material with a through porosity considering the indicators of peg-spacer primary stability. Methods. Randomised study included 20 preparations of mandible of pigs aged form 9 to 13 months. Periotest method was used for comparative assessment of stability indicators of dental implants models based on non-tissue titanium material with a through porosity that were installed using the conventional technology and by autologous modification using pin spacer diameters of 1.8, 2.0 and 2.3 mm. Results. Increasing the pin spacer diameter from 2.0 to 2.2 mm increases the indicators of stability by 13.33 PT in models of dental implants with sleeve of nonwoven titanium material with a through porosity, by 2.7 PT - with sleeve of nonwoven titanium material modified by autologous bone. Modification of nonwoven titanium material with a through porosity by autologous bone increases implant stability by 13.49 PT with pin spacer diameter of 2.0 mm, by 2.86 PT - with pin spacer diameter of 2.3 mm. Conclusion. The stability of the dental implant model depends on the pin spacer diameter of the intraosseous part and the density of nonwoven titanium material with a through porosity, which is regulated by autologous bone modification. Study results suggest using the technology of autologous modification of dental implants based on nonwoven titanium material with a through porosity widely in clinical practice.

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