scholarly journals Customized Root-Analogue Implants: A Review on Outcomes from Clinical Trials and Case Reports

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2296
Author(s):  
Telma Dantas ◽  
Sara Madeira ◽  
Michael Gasik ◽  
Paula Vaz ◽  
Filipe Silva
Keyword(s):  
Clinical Trials ◽  
Dental Implant ◽  
Animal Studies ◽  
Soft Tissues ◽  
Case Reports ◽  
Qualitative Synthesis ◽  
Custom Made ◽  
Dental Rehabilitation ◽  
Electronic Database Search ◽  
Manufacturing Techniques

(1) It is estimated that 10% of the world’s population will need a dental implant in their lifetime. Despite all the advances in the comprehension of dental implant designs, materials and techniques, traditional implants still have many limitations. Customized root-analogue implants are, therefore, gaining increased interest in dental rehabilitation and are expected to not only preserve more hard and soft tissues but also avoid a second surgery and improve patient overall satisfaction. In this sense, the aim of this review was to collect and analyse the clinical trials and case reports on customized root-analogue implants available in the literature; (2) This review was carried out according to the PRISMA Statement. An electronic database search was performed using five databases: PubMed, Google Scholar, Medline, Science Direct, and Scopus. The following keywords were used for gathering data: custom-made, dental implants, root-analogue, anatomical, customized and tooth-like; (3) 15 articles meeting the inclusion criteria—articles reporting clinical trials, case reports or animal studies and articles with root-analogue implants and articles with totally customized implant geometries—were selected for the qualitative synthesis. The design and manufacturing techniques, implant material and surface treatments were assessed and discussed; (4) The performance of some root-analogue implants with specific features (i.e., macro-retentions) was successful, with no signs of infection, periodontitis nor bleeding during the follow-up periods.

scholarly journals Limited Evidence Suggests Benefits of Single Visit Revascularization Endodontic Procedures - A Systematic Review

2019 ◽  
Vol 30 (6) ◽  
pp. 527-535 ◽  
Author(s):  
Giampiero Rossi-Fedele ◽  
Bill Kahler ◽  
Nagendrababu Venkateshbabu
Keyword(s):  
Clinical Trials ◽  
Animal Studies ◽  
Randomized Clinical Trials ◽  
Case Reports ◽  
Risk Of Bias ◽  
Permanent Teeth ◽  
Single Visit ◽  
Multiple Treatment ◽  
High Concentrations

Abstract Revascularization endodontic procedures commonly require multiple treatment sessions. However, single visit procedures may be advantageous from the clinical and patient management standpoints. The purpose of this review was to evaluate the outcomes of single-visit revascularization endodontic procedures for the management of immature permanent teeth with non-vital pulp. Two electronic databases (Scopus and PubMed) were searched, from their inception to July 2018, for studies that assessed clinical and/or radiographic and/or histologic outcomes of single-visit revascularization endodontic procedures performed in immature permanent teeth with non-vital pulp. Case reports, animal studies and clinical trials were included. The quality of case reports was appraised by Joanna Briggs Institute Critical Appraisal Checklist for Case Reports. The quality of randomized clinical trials was assessed by the revised Cochrane risk of bias tool for randomized trials. The risk of bias for animal studies was assessed using SYRCLE’s risk of bias tool. Tabulation followed by narrative synthesis was used to draw conclusions. Seven studies satisfied the selection criteria. Five were classified as case reports, one as a randomized clinical trial and one as animal study. The latter presented with a high risk of bias, whilst the remaining showed a low risk. The evidence supporting the potential use of single-visit revascularization endodontic procedures is scarce. Successful single-visit revascularization endodontic procedures commonly include the use of high concentrations of sodium hypochlorite and EDTA combined with the use of agitation systems. Further clinical trials with long term follow up are needed to confirm the results of the current review.

scholarly journals A Review of Acupuncture Treatment for Infertility

2021 ◽  
Vol 38 (4) ◽  
pp. 257-264
Author(s):  
Hea sun Chun ◽  
Ho-Sueb Song
Keyword(s):  
Clinical Trials ◽  
Clinical Study ◽  
Animal Studies ◽  
Polycystic Ovarian Syndrome ◽  
Acupuncture Treatment ◽  
Case Reports ◽  
Infertility Treatment ◽  
Control Group ◽  
Search Terms ◽  
Ovarian Syndrome

The purpose of this study was to analyze acupuncture treatment methods and acupoint used to treat infertility in the last decade. The data were retrieved from 2010.1 to 2021.8. using national and international electronic databases (PubMed, EMBASE, OASIS, NDSL, and KISS). “Infertility,” “sterility,” “acupuncture,” “electroacupuncture,” “bloodletting,” “pharmacopuncture,” were used as search terms. All studies were mainly concerned with acupuncture treatment of infertility, but the studies which were not related included; (1) infertility or acupuncture treatment; (2) animal studies; (3) review/meta/protocol or clinical study; comparative studies and case reports which were excluded from this review. Only clinical trials for acupuncture treatment of infertility were included in this review (n = 18). For infertility treatment studies using acupuncture, polycystic ovarian syndrome was the main cause of infertility, the most common acupoint used was CV4, CV3, CV6, SP6, BL23, and the treatment effect significantly improved in the group receiving acupuncture treatment compared with the control group, or the group taking Western medicine alone. In some studies, the group using acupuncture treatment did not show side effects. Acupuncture is an effective treatment for infertility.

scholarly journals Charcot knee — presentation, diagnosis, management — a scoping review

2021 ◽  
Author(s):  
Victor Lu ◽  
James Zhang ◽  
Azeem Thahir ◽  
Andrew Zhou ◽  
Matija Krkovic
Keyword(s):  
Scoping Review ◽  
Animal Studies ◽  
Case Reports ◽  
Weight Bearing ◽  
Case Series ◽  
Joint Effusion ◽  
Future Research ◽  
Charcot Arthropathy ◽  
Qualitative Synthesis ◽  
Entry Site

Abstract Background Charcot arthropathy is a progressive, non-infectious, destructive inflammatory process. Charcot arthropathy of the knee (CK) is rare and diagnosis is often delayed, resulting in detrimental outcomes. This scoping review aims to investigate the literature on CK, present the pathognomonic features of CK to aid early diagnosis, and suggest gaps in the literature for future research. Methods A systematic search of PubMed, EMBASE, Web of Science for literature relevant to CK was performed. Primary studies such as case reports, case series, retrospective studies were included. Review articles and animal studies were excluded. Results Of the 513 results, 58 were included in qualitative synthesis. Average time from symptom onset to CK diagnosis was 50.5 months. Eighteen and twenty-one studies included patients who had diabetes mellitus and syphilis, respectively. Twenty-one studies reported pain as a presenting complaint, but the degree of pain didn’t correspond with the level of destruction. Oedema and joint effusion were noticed in 34 studies. Twenty-nine studies reported lower limb hypoesthesia and 17 studies reported decreased tendon reflex. Twenty-eight studies reported initial conservative treatment, often in a knee brace with minimal weight bearing, 9 of which needed subsequent surgical management. Twelve studies utilised arthrodesis, with fracture at the intramedullary nail entry site being the most common complication. Twenty-four studies utilised TKA. Conclusion The literature on CK remains sparse, with most publications being case reports. Given that CK dramatically reduces quality of life, increases morbidity of patients, there is need for more literature on evidence-based options for early diagnoses and management.

scholarly journals Vitamin D Supplementation for Prevention of Dental Implant Failure: A Systematic Review

2022 ◽  
Vol 2022 ◽  
pp. 1-5
Author(s):  
Alaa Makke
Keyword(s):  
Vitamin D ◽  
Dental Implant ◽  
Significant Relationship ◽  
Animal Studies ◽  
Retrospective Studies ◽  
Case Reports ◽  
Case Series ◽  
Vitamin D Supplementation ◽  
Implant Failure ◽  
Vitamin D Levels

Background. Many factors play a significant role in osseointegration and healing after dental implant insertion and restoration. Some factors are related to dental biomaterials, such as the dental implant, prosthesis, and grafting materials. Other factors can be connected to operator skills and accumulated experience. Local and systemic patient-related factors are crucial in determining the success of the dental implant. Thorough examination and analysis of local factors using available examination tools are vital to prepare the implant candidate for such treatment. The patient’s systemic condition directly affects the healing of the dental implant. One of the most overlooked systemic factors is the patients’ vitamin D level, which influences bone formation around the implant and subsequent osseointegration. The current review examined the available literature regarding the association between vitamin D supplementation and dental implant osseointegration. Methods. Data of this review were derived from recent research available on PubMed, Google Scholar, and Scopus. Inclusion criteria were the relation between the vitamin D serum and dental implant osseointegration or failure. The Systematic Reviews and Meta-Analyses (PRISMA) checklist was followed to perform the review. The study’s outcome was the need for vitamin D supplementation to prevent implant failure. Results. Five human studies (including case reports, case series, and retrospective studies) and six animal studies. All included studies discussed the relationship between vitamin D, early dental implant failure, and bone implant contact. Three retrospective studies found no significant relationship between vitamin D supplementation and EDIFs in humans. On the other hand, one retrospective study showed a significant relationship in humans. A case report and case series claimed that the implant was successfully placed after vitamin D supplementation. A total of four animal studies showed a significant relationship between vitamin D supplementation and osseointegration of the dental implant. Two animal studies showed no significant association. Conclusion. To ensure optimal treatment outcomes, it is recommended to supplement the patient with vitamin D if the serum level is not within the normal range. Further clinical studies and case reports are needed to confirm the association between serum vitamin D levels and osseointegration.

Surgical treatment of extensive perianal hidradenitis

2020 ◽  
Vol 99 (9) ◽  
Keyword(s):  
Surgical Treatment ◽  
Hidradenitis Suppurativa ◽  
Soft Tissues ◽  
Case Reports ◽  
Radical Excision ◽  
Skin Flaps ◽  
Perianal Area ◽  
Apocrine Glands ◽  
Patient Preparation ◽  
Two Stages

Introduction: Perianal hidradenitis suppurativa is a chronic recurrent inflammatory, suppurative, and fistulising disease of apocrine glands, adjacent anal canal and soft tissues. Perianal area is the second most common affected area after axilla. There are three grades of the disease. Hidradenitis suppurativa represents a chronic, recurrent, deep-seated folliculitis resulting in abscesses, followed by the formation of sinus tracts and subsequent scarring. Perianal hidradenitis suppurativa is the last and the most serious grade of the disease and a specific access is needed for patient preparation and surgical treatment alone. The currently preferred method of treatment for patients with extensive perianal hidradentitis is excision and closure with combination of skin flaps, primary suture and skin graft in one or two stages. Case reports: There are three case reports of perianal hidradenitis suppurativa in this article. The local and overall initial treatment of patients followed by a radical excision and closure with a rotation skin flaps and skin grafts is described. The final results were satisfactory, with no recurrence or serious complication.

Modulation of Matrix Metalloproteinases by Plant-Derived Products

2020 ◽  
Vol 20 ◽  
Author(s):  
Nur Najmi Mohamad Anuar ◽  
Nurul Iman Natasya Zulkafali ◽  
Azizah Ugusman
Keyword(s):  
Clinical Trials ◽  
Natural Products ◽  
Matrix Metalloproteinases ◽  
Animal Studies ◽  
Current Knowledge ◽  
In Vitro Models ◽  
In Vivo Studies ◽  
Extracellular Matrix Components

: Matrix metalloproteinases (MMPs) are a group of zinc-dependent metallo-endopeptidase that are responsible towards the degradation, repair and remodelling of extracellular matrix components. MMPs play an important role in maintaining a normal physiological function and preventing diseases such as cancer and cardiovascular diseases. Natural products derived from plants have been used as traditional medicine for centuries. Its active compounds, such as catechin, resveratrol and quercetin, are suggested to play an important role as MMPs inhibitors, thereby opening new insights into their applications in many fields, such as pharmaceutical, cosmetic and food industries. This review summarises the current knowledge on plant-derived natural products with MMP-modulating activities. Most of the reviewed plant-derived products exhibit an inhibitory activity on MMPs. Amongst MMPs, MMP-2 and MMP-9 are the most studied. The expression of MMPs is inhibited through respective signalling pathways, such as MAPK, NF-κB and PI3 kinase pathways, which contribute to the reduction in cancer cell behaviours, such as proliferation and migration. Most studies have employed in vitro models, but a limited number of animal studies and clinical trials have been conducted. Even though plant-derived products show promising results in modulating MMPs, more in vivo studies and clinical trials are needed to support their therapeutic applications in the future.

scholarly journals Mechanical Properties and Corrosion Resistance of TiAl6V4 Alloy Produced with SLM Technique and Used for Customized Mesh in Bone Augmentations

2021 ◽  
Vol 11 (12) ◽  
pp. 5622
Author(s):  
Nicola De Angelis ◽  
Luca Solimei ◽  
Claudio Pasquale ◽  
Lorenzo Alvito ◽  
Alberto Lagazzo ◽  
...  
Keyword(s):  
Sem Analysis ◽  
Bone Augmentation ◽  
Specific Test ◽  
Chemical Action ◽  
Three Point Bending ◽  
Custom Made ◽  
Manufacturing Techniques ◽  
Mechanical Properties And Corrosion ◽  
Flexural Tests ◽  
Applied Stresses

Bone augmentation procedures represent a real clinical challenge. One option is the use of titanium meshes. Additive manufacturing techniques can provide custom-made devices in titanium alloy. The purpose of this study was to investigate the material used, which can influence the outcomes of the bone augmentation procedure. Specific test samples were obtained from two different manufacturers with two different shapes: surfaces without perforations and with calibrated perforations. Three-point bending tests were run as well as internal friction tests to verify the Young’s modulus. Test samples were placed in two different buffered solutions and analyzed with optical microscopy. A further SEM analysis was done to observe any microstructural modification. Three-point flexural tests were conducted on 12 specimens. Initial bending was observed at lower applied stresses for the perforated samples (503 MPa) compared to non-perforated ones (900 MPa); the ultimate flexural strength was registered at 513 MPa and 1145 MPa for perforated and non-perforated samples, respectively. Both microscopic analyses (optical and SEM) showed no significant alterations. Conclusions: A normal masticatory load cannot modify the device. Chemical action in the case of exposure does not create macroscopic and microscopic alterations of the surface.

scholarly journals Immediate Post-Extraction Short Implant Placement with Immediate Loading and without Extraction of an Impacted Maxillary Canine: Two Case Reports

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2757
Author(s):  
José Antonio Moreno-Rodríguez ◽  
Julia Guerrero-Gironés ◽  
Francisco Javier Rodríguez-Lozano ◽  
Miguel Ramón Pecci-Lloret
Keyword(s):  
Dental Implant ◽  
Alveolar Bone ◽  
Case Reports ◽  
Young Patients ◽  
Aesthetic Result ◽  
First Choice ◽  
Surgical Extraction ◽  
Impacted Canine ◽  
Short Implant

For the treatment of impacted maxillary canines, traction associated with a complete orthodontic treatment is the first choice in young patients. However, in adults, this treatment has a worse prognosis. The surgical extraction of the impacted tooth can result in a series of complications and a compromised alveolar bone integrity, which may lead to the requirement of a bone regeneration/grafting procedure to replace the canine with a dental implant. These case reports aimed to describe an alternative treatment procedure to the surgical extraction of impacted maxillary canines in adults. Following clinical and computerized tomography-scan (CT-Scan) examination, the possibility of maintaining the impacted canine in its position and replacing the temporary canine present in its place with a dental implant was planned. A short dental implant with an immediate provisional crown was placed, without contacting the impacted canine. At 3 months follow-up, a definitive metal-ceramic restoration was placed. Follow-up visits were performed periodically. The implant site showed a physiological soft tissue color and firmness, no marginal bone loss, no infection or inflammation, and an adequate aesthetic result in all follow-up visits. These results suggest that the treatment carried out is a valid option to rehabilitate with an osseointegrated short implant area where a canine is included, as long as there is a sufficient amount of the remaining bone.

scholarly journals Graphene-Doped Poly (Methyl-Methacrylate) (Pmma) Implants: A Micro-CT and Histomorphometrical Study in Rabbits

2021 ◽  
Vol 22 (3) ◽  
pp. 1441
Author(s):  
Antonio Scarano ◽  
Tiziana Orsini ◽  
Fabio Di Carlo ◽  
Luca Valbonetti ◽  
Felice Lorusso
Keyword(s):  
Methyl Methacrylate ◽  
Dental Implant ◽  
Animal Studies ◽  
White Male ◽  
Biological Response ◽  
Medullary Canal ◽  
Poly Methyl Methacrylate ◽  
Titanium Surfaces ◽  
Dental Applications

Background—the graphene-doping procedure represents a useful procedure to improve the mechanical, physical and biological response of several Polymethyl methacrylate (PMMA)-derived polymers and biomaterials for dental applications. The aim of this study was to evaluate osseointegration of Graphene doped Poly(methyl methacrylate) (GD-PMMA) compared with PMMA as potential materials for dental implant devices. Methods—eighteen adult New Zealand white male rabbits with a mean weight of approx. 3000 g were used in this research. A total of eighteen implants of 3.5 mm diameter and 11 mm length in GD-PMMA and eighteen implants in PMMA were used. The implants were placed into the articular femoral knee joint. The animals were sacrificed after 15, 30 and 60 days and the specimens were evaluated by µCT and histomorphometry. Results—microscopically, all 36 implants, 18 in PMMA and 18 in DG-PMMA were well-integrated into the bone. The implants were in contact with cortical bone along the upper threads, while the lower threads were in contact with either newly formed bone or with marrow spaces. The histomorphometry and µCT evaluation showed that the GP-PMMA and PMMA implants were well osseointegrated and the bone was in direct contact with large portions of the implant surfaces, including the space in the medullary canal. Conclusions—in conclusion, the results suggest that GD-PMMA titanium surfaces enhance osseointegration in rabbit femurs. This encourages further research to obtain GD-PMMA with a greater radiopacity. Also, further in vitro and vivo animal studies are necessary to evaluate a potential clinical usage for dental implant applications.

scholarly journals Vitamin C in the Treatment of COVID-19

Nutrients ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 1172
Author(s):  
Gregorio Paolo Milani ◽  
Marina Macchi ◽  
Anat Guz-Mark
Keyword(s):  
Clinical Trials ◽  
Vitamin C ◽  
Respiratory Infections ◽  
Medical Condition ◽  
Case Reports ◽  
Case Series ◽  
Theoretical Background ◽  
Current Evidence ◽  
Vitamin C Supplementation ◽  
Essential Nutrient

Vitamin C is an essential nutrient that serves as antioxidant and plays a major role as co-factor and modulator of various pathways of the immune system. Its therapeutic effect during infections has been a matter of debate, with conflicting results in studies of respiratory infections and in critically ill patients. This comprehensive review aimed to summarize the current evidence regarding the use of vitamin C in the prevention or treatment of patients with SARS-CoV2 infection, based on available publications between January 2020 and February 2021. Overall, 21 publications were included in this review, consisting of case-reports and case-series, observational studies, and some clinical trials. In many of the publications, data were incomplete, and in most clinical trials the results are still pending. No studies regarding prevention of COVID-19 with vitamin C supplementation were found. Although some clinical observations reported improved medical condition of patients with COVID-19 treated with vitamin C, available data from controlled studies are scarce and inconclusive. Based on the theoretical background presented in this article, and some preliminary encouraging studies, the role of vitamin C in the treatment of patients with SARS-CoV-2 infection should be further investigated.

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