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Peri-implantitis

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https://www.readbyqxmd.com/read/29786704/peri-implant-tissue-score-pits-as-a-measure-of-success-applied-to-869-dental-implants-from-a-retrospective-clinical-study
#1
Zbyněk Mazur, Ladislav Korábek, Daniel Mazur
OBJECTIVE: This article presents a methodology of a comprehensive score for assessment and monitoring of dental implant success from the peri-implant tissue perspective. It involves only standard and minimally invasive techniques accessible to general dental practices, without the need for special equipment. METHODS AND MATERIALS: The proposed score methodology combines existing consensual global knowledge regarding aspects of dental implant success with the standard examination tools accepted for regular recall assessment...
May 17, 2018: Quintessence International
https://www.readbyqxmd.com/read/29781768/guided-bone-regeneration-and-implant-placement-in-association-with-a-coronally-positioned-palatal-sliding-flap-a-17-year-follow-up-case-report
#2
Carlo Maiorana, Pier Paolo Poli, Mario Beretta
The aim of the present case report was to show the 17-year hard and soft tissues stability of guided bone regeneration procedure associated with dental implants insertion. A 52-year-old male patient presented with a partial edentulism in the upper right maxilla. A graft consisting of deproteinized bovine bone mineral and autogenous bone stabilized by a non-resorbable expanded polytetrafluoroethylene membrane was used to reconstruct the missing bone applying the biological principles of guided bone regeneration...
May 21, 2018: Journal of Oral Implantology
https://www.readbyqxmd.com/read/29781224/influence-of-different-drilling-preparation-on-cortical-bone-a-biomechanical-histological-and-micro-ct-study-on-sheep
#3
Michele Stocchero, Marco Toia, Yohei Jinno, Francesca Cecchinato, Jonas P Becktor, Yoshihito Naito, Anders Halldin, Ryo Jimbo
OBJECTIVE: The aim of this study was to investigate the extent of cortical bone remodeling between two different drilling protocols by means of histomorphometric, µ-CT, and biomechanical analyses. MATERIAL AND METHODS: A total of 48 implants were inserted into the mandible of six sheep following two drilling protocols: Group A (Test, n = 24), undersized preparation; Group B (Control, n = 24), non-undersized preparation. The animals were euthanatized to obtain 5 and 10 weeks of implantation time...
May 20, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29779286/-methods-of-removing-failed-implants
#4
Wan-Rong Wang, Xiao-Feng Chang, Long-Long He
Implant restoration has become one of the most regular methods of restoring dentition defect or edentulous. Implant placement and osseointegration are partly unreserved (fracture, implant is not in the correct three-dimensional position and cannot be repaired, peri-implantitis-affected nonmobile implants) need to be removed. This article reviews the different methods of removing implants and discusses the limitations of each method, as well as the complications that may occur during the procedure.
April 1, 2018: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29778881/polymerase-chain-reaction-pcr-based-methods-promising-molecular-tools-in-dentistry
#5
REVIEW
Shahriar Shahi, Sepideh Zununi Vahed, Nazanin Fathi, Simin Sharifi
Polymerase chain reaction (PCR) has become a popular diagnosis and research technique in dentistry. Several studies show that its high sensitivity and specificity allow it as a precise, efficient, and rapid method for detection, identification, and quantification of microorganism. Several genetic polymorphisms can be determined along with detection of immune and inflammatory markers, therefore providing the more accurate perception into the mechanisms underlying the dental and periodontal disease. This review paper discusses the application of PCR as a diagnostic technique in periodontology, endodontic infections, implant-related, and peri-implantitis infection, immune and inflammatory markers identification and genetic polymorphism as well as application of next generation sequencing and gene microarray technology in dentistry mentioned...
May 17, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29774206/emphysema-following-air-powder-abrasive-treatment-for-peri-implantitis
#6
Sung-Tak Lee, Malavika Geetha Subu, Tae-Geon Kwon
Background: Subcutaneous emphysema refers to swelling caused by the presence of air or gas in the interstices of loose connective tissue. In the head and neck area, it may follow the fascial planes and is characterized by sudden swelling, crepitus on palpation, infrequent pain, and air emboli on radiography. It usually occurs as a complication in dental treatment. Some reports have described subcutaneous emphysema caused by dental procedures; however, severe emphysema related to peri-implantitis after treatment has not been documented...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29772348/biosafety-stability-and-osteogenic-activity-of-novel-implants-made-of-zr-70-ni-16-cu-6-al-8-bulk-metallic-glass-for-biomedical-application
#7
Hiroto Ida, Masahiro Seiryu, Nobuo Takeshita, Masanari Iwasaki, Yoshihiko Yokoyama, Yusuke Tsutsumi, Etsuko Ikeda, Satoshi Sasaki, Shunro Miyashita, Shutaro Sasaki, Tomohiro Fukunaga, Toru Deguchi, Teruko Takano-Yamamoto
Superior mechanical and chemical properties of Zr70 Ni16 Cu6 Al8 bulk metallic glass (BMG) demonstrate its promise as a novel biomaterial for fabrication of implants. The aim of the present study was to validate mechanical, chemical, and biological properties of Zr70 Ni16 Cu6 Al8 BMG through comparison with titanium (Ti). Our data indicated higher tensile strength, lower Young's modulus, and reduced metal ion release of Zr70 Ni16 Cu6 Al8 BMG compared with Ti. Biosafety of bone marrow mesenchymal cells on Zr70 Ni16 Cu6 Al8 BMG was comparable to that of Ti...
May 14, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29772189/comparison-of-intraoral-bone-regeneration-with-iliac-and-alveolar-bmscs
#8
F Wang, Y Zhou, J Zhou, M Xu, W Zheng, W Huang, W Zhou, Y Shen, K Zhao, Y Wu, D Zou
This study compared the osteogenic potential of bone marrow mesenchymal stem cells (BMSCs) of iliac and alveolar origins (I-BMSCs and Al-BMSCs, respectively), which were transplanted in combination with β tricalcium phosphate (β-TCP) in peri-implant bone defects to investigate the osseointegration between dental implants and tissue-engineered bone in dogs. Specifically, I-BMSCs and Al-BMSCs were cultured, characterized, and seeded on β-TCP and subjected to immunoblotting analyses and alkaline phosphatase activity assays...
May 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29771975/development-and-characterization-of-an-oral-multispecies-biofilm-implant-flow-chamber-model
#9
Nadine Kommerein, Katharina Doll, Nico S Stumpp, Meike Stiesch
Peri-implant infections are the most common cause of implant failure in modern dental implantology. These are caused by the formation of biofilms on the implant surface and consist of oral commensal and pathogenic bacteria, which harm adjacent soft and hard tissues and may ultimately lead to implant loss. In order to improve the clinical situation, there has to be a better understanding of biofilm formation on abiotic surfaces. Therefore, we successfully developed a system to cultivate an oral multispecies biofilm model in a flow chamber system, optimized for the evaluation of biofilm formation on solid materials by direct microscopic investigation...
2018: PloS One
https://www.readbyqxmd.com/read/29770323/dental-mesenchymal-stem-cell-based-translational-regenerative-dentistry-from-artificial-to-biological-replacement
#10
REVIEW
Mona K Marei, Rania M El Backly
Dentistry is a continuously changing field that has witnessed much advancement in the past century. Prosthodontics is that branch of dentistry that deals with replacing missing teeth using either fixed or removable appliances in an attempt to simulate natural tooth function. Although such "replacement therapies" appear to be easy and economic they fall short of ever coming close to their natural counterparts. Complications that arise often lead to failures and frequent repairs of such devices which seldom allow true physiological function of dental and oral-maxillofacial tissues...
2018: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/29770239/comparison-of-marginal-bone-loss-between-internal-and-external-connection-dental-implants-in-posterior-areas-without-periodontal-or-peri-implant-disease
#11
Dae-Hyun Kim, Hyun Ju Kim, Sungtae Kim, Ki-Tae Koo, Tae-Il Kim, Yang-Jo Seol, Yong-Moo Lee, Young Ku, In-Chul Rhyu
Purpose: The purpose of this retrospective study with 4-12 years of follow-up was to compare the marginal bone loss (MBL) between external-connection (EC) and internal-connection (IC) dental implants in posterior areas without periodontal or peri-implant disease on the adjacent teeth or implants. Additional factors influencing MBL were also evaluated. Methods: This retrospective study was performed using dental records and radiographic data obtained from patients who had undergone dental implant treatment in the posterior area from March 2006 to March 2007...
April 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29770237/quantitative-measurement-of-peri-implant-bone-defects-using-optical-coherence-tomography
#12
Sulhee Kim, Se-Ryong Kang, Hee-Jung Park, Bome Kim, Tae-Il Kim, Won-Jin Yi
Purpose: The purpose of this study was to visualize and identify peri-implant bone defects in optical coherence tomography (OCT) images and to obtain quantitative measurements of the defect depth. Methods: Dehiscence defects were intentionally formed in porcine mandibles and implants were simultaneously placed without flap elevation. Only the threads of the fixture could be seen at the bone defect site in the OCT images, so the depth of the peri-implant bone defect could be measured through the length of the visible threads...
April 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29767434/regenerative-surgical-therapy-for-peri-implantitis-using-deproteinized-bovine-bone-mineral-with-10-collagen-enamel-matrix-derivative-and-doxycycline-a-prospective-3-year-cohort-study
#13
Faustino Mercado, Stephen Hamlet, Saso Ivanovski
OBJECTIVES: There is limited evidence regarding the long-term efficacy of regenerative treatment for peri-implantitis. The aim of this study was to evaluate a combination therapy of deproteinized bovine bone mineral with 10% collagen (DBBMC), enamel matrix derivative (EMD) and Doxycycline in the regeneration of bone defects associated with peri-implantitis. METHODS: Thirty patients diagnosed with peri-implantitis (BoP/suppuration, probing depth greater than 4 mm, minimum radiographic bone loss of 20%, at least 2 years in function) were enrolled in the study...
May 16, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29763504/investigational-clinical-trial-of-a-prototype-optoelectronic-computer-aided-navigation-device-for-dental-implant-surgery
#14
Asbjørn Jokstad, Brenton Winnett, Joseph Fava, David Powell, Eszter Somogyi-Ganss
PURPOSE: New digital technologies enable real-time computer-aided (CA) three-dimensional (3D) guidance during dental implant surgery. The aim of this investigational clinical trial was to demonstrate the safety and effectiveness of a prototype optoelectronic CA-navigation device in comparison with the conventional approach for planning and effecting dental implant surgery. MATERIALS AND METHODS: Study participants with up to four missing teeth were recruited from the pool of patients referred to the University of Toronto Graduate Prosthodontics clinic...
May 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29763495/early-response-of-fibroblasts-and-epithelial-cells-to-pink-shaded-anodized-dental-implant-abutments-an-in-vitro-study
#15
Federico Mussano, Tullio Genova, Marco Laurenti, Elisa Zicola, Luca Munaron, Paola Rivolo, Pietro Mandracci, Stefano Carossa
PURPOSE: This research aimed to assess whether pink-shaded anodized surfaces could enhance the adhesion of soft tissue cells compared with untreated machined titanium surfaces. MATERIALS AND METHODS: Two types of Ti-Al-V titanium samples were prepared: machined titanium (Ti) and anodized titanium (AnoTi). The microstructure was studied by means of a scanning electron microscope. X-ray photoelectron spectroscopy (XPS) was carried out as well. The wetting properties were investigated by the sessile drop technique with water and diiodomethane...
May 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29763494/expression-levels-of-semaphorins-3a-3b-4a-and-4d-on-human-peri-implantitis
#16
Marta Ferreira Bastos, Leonardo de Franco, Andressa Cristina Garcia Tebar, Gabriela Giro, Jamil Awad Shibli
PURPOSE: To evaluate the gene expression levels of semaphorins 3A, 3B, 4A, and 4D in both healthy and diseased implants. MATERIALS AND METHODS: Subjects with peri-implantitis presented clinical attachment loss, probing depth ≥ 5 mm, bleeding on probing and/or suppuration, and radiographic bone loss > 4 mm. Peri-implant tissue biopsy specimens were sampled for analysis of the mRNA expression levels for semaphorins 3A, 3B, 4A, and 4D. A real-time polymerase chain reaction was performed, and the gene expression levels of semaphorins in relation to the housekeeping gene were analyzed by using the nonparametric Mann-Whitney test (P < ...
May 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29763360/three-dimensional-finite-element-analisys-of-stress-distribution-in-zirconia-and-titanium-dental-implants
#17
Camilo Andres Villabona, Marco Antônio Amorin Vasco, Edwin Ruales, Karin Apaza Bedoya, Cesar Magalhães Benfatti, Osvaldo Luis Bezzon, Tatiana Miranda Deliberador
Zirconia has been presented as an alternative biomaterial to titanium, commercially presented as a single body implant and / or as an abutment, demonstrating clinically biocompatible favorable results in white and rose aesthetics, However, the amount of long-term in-vivo studies and mechanical tests evaluating the response of stress distribution compared with titanium implants are still limited. The aim of the study was to compare by the finite element method, the principal stresses peaks in the peri implantar bone around titanium and zirconia implants...
May 15, 2018: Journal of Oral Implantology
https://www.readbyqxmd.com/read/29761926/incidence-and-pattern-of-implant-fractures-a-long-term-follow-up-multicenter-study
#18
Jae-Hong Lee, Yeon-Tae Kim, Seong-Nyum Jeong, Na-Hong Kim, Dong-Woon Lee
BACKGROUND: Currently, there is incomplete understanding of the fracture patterns in the implant and their association with clinical factors. PURPOSE: The aim of this study was to investigate the incidence and pattern of implant fracture (IF) by using 9-year, long-term multicenter follow-up data. MATERIALS AND METHODS: The association of the incidence and differences in fracture patterns with clinical factors (based on patient variables and implant variables) was assessed for statistical significance using the Chi-square and Fisher exact test, as appropriate...
May 15, 2018: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29761902/the-influence-of-implant-abutment-connection-to-peri-implant-bone-loss-a-systematic-review-and-meta-analysis
#19
REVIEW
Riccardo Caricasulo, Luciano Malchiodi, Paolo Ghensi, Giuliano Fantozzi, Alessandro Cucchi
PURPOSE: Different implant-abutment connections are available and it has been claimed they could have an effect on marginal bone loss. The aim of this review is to establish if implant connection configuration influences peri-implant bone loss (PBL) after functional loading. METHODS: A specific question was formulated according to the Population, Intervention, Control, and Outcome (PICO): Does the type of implant-abutment connection (external, internal, or conical) have an influence on peri-implant bone loss? A PubMed/MEDLINE electronic search was conducted to identify English language publications published in international journals during the last decade (from 2006 to 2016)...
May 15, 2018: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29761866/occurrence-of-peri-implant-diseases-and-risk-indicators-at-the-patient-and-implant-levels-a-multi-level-cross-sectional-study
#20
Suzana P Pimentel, Roberto Shiota, Fabiano R Cirano, Renato C V Casarin, Vanessa G A Pecorari, Marcio Z Casati, Alex N Haas, Fernanda V Ribeiro
BACKGROUND: High prevalence rates of peri-implant diseases have been reported; however, the lack of standardization of definition criteria has lead to variations in the observed estimates. In addition, scarce data is available concerning patient and implant related factors associated to peri-implantitis. The aim of this study was to determine the prevalence of peri-implant diseases and their risk indicators at the patient and implant levels. METHODS: 147 patients with 490 dental implants were included...
May 15, 2018: Journal of Periodontology
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