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International Journal of Oral & Maxillofacial Implants

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https://www.readbyqxmd.com/read/29894551/sinus-floor-elevation-using-the-lateral-approach-and-window-repositioning-and-a-xenogeneic-bone-substitute-as-a-grafting-material-a-histologic-histomorphometric-and-radiographic-analysis
#1
Georges Tawil, Mike Barbeck, Ronald Unger, Peter Tawil, Franck Witte
PURPOSE: Sinus floor elevation using the lateral approach and bone window repositioning and a xenogeneic bone substitute (Cerabone) has been well documented clinically. The purpose of this histologic and histomorphometric study was to determine the fate of the window, its contributing role in the healing process, and the osseoconductivity and resorption potential of the high-temperature sintered bovine bone used, as well as to correlate the histomorphometric results with sinus depth and lateral wall thickness as determined on cone beam computed tomography (CBCT)...
June 12, 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29894550/stability-of-implant-abutment-connection-after-using-the-rescue-kit-an-in-vitro-study
#2
Achim Sprenger, Kristupas Gutauskas, Andreas Filippi, Martin Rosentritt, Sebastian Kühl
PURPOSE: To evaluate whether removing a fractured abutment screw with a specific rescue device negatively affects the success of a new restoration in terms of early abutment loosening. MATERIALS AND METHODS: Implants (n = 10) with a regular platform of 4.1 mm (tissue level [TL]) and implants (n = 10) with a reduced diameter of 3.3 mm (bone level [BL]) were used. The screws of eight respective abutments for both implant types were artificially weakened in order to fracture during torque application for abutment insertion...
June 12, 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29894549/effects-of-taper-angle-and-sealant-agents-on-bacterial-leakage-along-the-implant-abutment-interface-an-in-vitro-study-under-loaded-conditions
#3
Arda Ozdiler, Nursen Bakir-Topcuoglu, Guven Kulekci, Gulbahar Isik-Ozkol
PURPOSE: The aim of this study was to compare the bacterial leakage of conical internal connection implants with different taper angles (5.4, 12, 45, and 60 degrees) and examine the efficiency of a disinfectant agent and a silicone sealant agent in the prevention of bacterial leakage under loaded conditions. MATERIALS AND METHODS: Twenty-one implant-abutment connections were studied from each implant system (Ankylos Implants, Dentsply; Bego Semados S Implants, Bego; Trias Implants, Servo-Dental; DTI Implants, DTI), for a total of 84 implants...
June 12, 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29894548/retention-and-stability-of-rigid-telescopic-and-milled-bar-attachments-for-implant-supported-maxillary-overdentures-an-in-vitro-study
#4
Moustafa Abdou ELsyad, Tarek Ahmed Soliman, Ahmed Khalifa Khalifa
PURPOSE: This study aimed to evaluate and compare the retention and stability of rigid telescopic and milled bar attachments for implant-supported maxillary overdentures. MATERIALS AND METHODS: An acrylic resin model of the edentulous maxilla without alveolar undercuts was fabricated, and four implants were inserted in the canine and second premolar areas of the model. Two experimental overdentures were constructed and connected to the model with either rigid telescopic (RTA) or milled bar (MBA) attachments...
June 12, 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29894547/evaluation-of-peri-implant-bone-stress-on-d1-bone-using-a-computerized-torque-measuring-implant-motor-a-study-on-photoelastic-resin-blocks
#5
Mirko Andreasi Bassi, Paolo Arosio, Danilo Alessio Di Stefano
PURPOSE: Recently, a torque-measuring micromotor that calculates the integral (I) of torque-depth curve at implant insertion was developed. This device was used to investigate the correlation between (I) and mechanical stress in photoelastic resin blocks with the density of D1 bone. MATERIALS AND METHODS: Using the micromotor, 40 implants (3.75 × 12 mm) were placed in 40 D1 blocks that had been prepared in four different ways. Four groups of 10 blocks each were prepared according to tunnel length (12 or 14 mm) and debris removal (yes or no)...
June 12, 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30025012/inferior-alveolar-nerve-medialization-for-dental-implant-placement-case-report-with-the-introduction-of-a-new-technique
#6
Reza Sharifi, Majid Beshkar, Mahmoud Reza Mobayeni, Mahboube Hasheminasab
Inferior alveolar nerve repositioning is an option for treating the edentulous posterior mandible with insufficient bone height above the inferior alveolar canal. This report presents a case in which inferior alveolar nerve medialization was performed for placing dental implants. In the second postoperative week, mandibular fracture occurred after biting on a relatively solid piece of food, which was treated conservatively.
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30025011/infraposition-of-implant-retained-maxillary-incisor-crown-placed-in-an-adult-patient-case-report
#7
Roberto Cocchetto, Luigi Canullo, Renato Celletti
Several studies have clearly shown that osseointegrated implants, when inserted in growing bone, such as in adolescents, do not follow the eruptive path of adjacent teeth; instead, they act like ankylosed teeth, remaining in a stationary position for the lifetime, thus developing a progressive infraposition of the implant-supported crown. However, further studies have demonstrated that similar changes also occur in adult patients, although mostly in a small amount and over long time spans. Here the case of a female patient aged 35 years is presented, in which infraposition of the maxillary central incisor developed in a very short time (15 months)...
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30025010/a-comparison-of-esthetic-features-of-pre-existing-natural-tooth-versus-post-implant-restoration-in-the-esthetic-zone-a-retrospective-12-month-follow-up
#8
Erhan Dursun, Guo-Hao Lin, Sahand Taheri, Stephen J Chu, Hom-Lay Wang, Tolga F Tözüm
PURPOSE: To correlate the link between natural teeth located in esthetic regions of the arches before extraction with their definitive dental implant restorations, and to propose a new and contemporary esthetic index based on the natural dentition (EIND) preoperatively. MATERIALS AND METHODS: Patients possessing a high smile line with teeth requiring implant replacement therapy in the maxillary anterior region were included. Clinical intraoral photographs and periapical digital radiographs taken before extraction and 10 ± 1...
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30025009/a-prospective-multicenter-study-on-radiographic-crestal-bone-changes-around-dental-implants-placed-at-crestal-or-subcrestal-level-one-year-findings
#9
Claudio Gatti, Fulvio Gatti, Maurizio Silvestri, Francesco Mintrone, Roberto Rossi, Gabriele Tridondani, Giacomo Piacentini, Paola Borrelli
PURPOSE: To compare the peri-implant radiographic crestal bone changes around implants placed at the subcrestal or crestal level. MATERIALS AND METHODS: Systemically healthy patients with at least two missing teeth requiring implant-supported fixed prosthetic restorations were enrolled in the study. Implants were randomly placed either 1 mm subcrestally or at the bone crest level. Radiographic examination was performed using the long-cone parallel technique and customized film holders...
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30025008/long-term-esthetic-outcome-of-tissue-level-and-bone-level-implants-in-the-anterior-maxilla
#10
Carola Siebert, Dominik Rieder, Jochen Eggert, Manfred Gerhard Wichmann, Siegfried Martin Heckmann
PURPOSE: The aim of this study was to assess and compare the esthetic outcome of tissue-level (TL) and bone-level (BL) implants that had been placed as single implants in the anterior maxilla. MATERIALS AND METHODS: Between 2001 and 2008, patients were treated using TL implants (Straumann). From 2008 until 2012, patients received the newly developed BL implant (Straumann). All patients with a single anterior maxillary implant who came to check-ups regularly were contacted and invited to take part in the study...
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30025007/molecular-assessment-of-human-peri-implant-mucosal-healing-at-laser-modified-and-machined-titanium-abutments
#11
Austin Leong, Ingeborg De Kok, Daniela Mendonça, Lyndon F Cooper
PURPOSE: To compare, by gene profiling analysis, the molecular events underscoring peri-implant mucosa formation at machined vs laser-microgrooved implant healing abutments. MATERIALS AND METHODS: Forty endosseous implants were placed by a one-stage approach in 20 healthy subjects in nonadjacent sites for single-tooth restorations. In a split-mouth design, machined smooth and laser-microgrooved healing abutments were randomly assigned in each subject. Peri-implant mucosa adjacent to healing abutments was harvested by tissue punch biopsy at either 1, 2, 4, or 8 weeks following abutment placement...
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30025006/bone-volume-dynamics-and-implant-placement-torque-in-horizontal-bone-defects-reconstructed-with-autologous-or-xenogeneic-block-bone-a-randomized-controlled-split-mouth-prospective-clinical-trial
#12
Rafael Guimarães Lima, Tito Guimarães Lima, Carlos Eduardo Francischone, Cecilia Turssi, Neuza Maria Souza Picorelli Assis, Bruno Salles Sotto-Maior
PURPOSE: The aim of this study was to evaluate volumetric stability of autologous and xenogeneic block grafts and primary stability of implants in maxillary grafted areas. MATERIALS AND METHODS: Each patient received one autologous block and xenogeneic block, both covered with a membrane. Bone thickness measurements clinically and tomographically were made before, immediately, and 6 months postoperatively. After 6 months, identical implants were placed in each grafted area, and primary stability was measured...
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30025005/cone-beam-computed-tomography-assessment-of-the-buccal-bone-thickness-in-anterior-maxillary-teeth-relevance-to-immediate-implant-placement
#13
Joseph Gakonyo, Adnaan Jabir Mohamedali, Edward Kabubei Mungure
PURPOSE: Peri-implant bone thickness is an important local factor that could influence esthetic outcomes in immediate implant therapy. The aim of this study was to assess the thickness of the buccal bone overlying the anterior maxillary teeth in Kenyans. MATERIALS AND METHODS: A total of 184 cone beam computed tomography (CBCT) scans that met the inclusion criteria were retrospectively studied. Buccal bone thickness of all maxillary anterior teeth was assessed, resulting in a total of 1,104 teeth...
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30025004/classification-systems-for-peri-implantitis-a-narrative-review-with-a-proposal-of-a-new-evidence-based-etiology-codification
#14
Marco Tallarico, Luigi Canullo, Hom-Lay Wang, David L Cochran, Silvio Mario Meloni
PURPOSE: To present the different definitions of peri-implantitis proposed in the literature and to propose a new evidence-based etiology-driven classification of peri-implantitis to accurately and fully describe the etiology of peri-implantitis. MATERIALS AND METHODS: Full-text papers on the selected topic were obtained for all abstracts and titles that appeared to meet the inclusion criteria. Additional papers were included from the reference lists of the selected studies...
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30025003/predicting-patient-reported-outcomes-of-dental-implant-treatment
#15
Kayo Mukawa, Daisuke Higuchi, Chisako Furuyama, Kazuyoshi Baba
PURPOSE: To investigate whether pretreatment patient-related factors are associated with the outcomes of dental implant treatment through multidimensional evaluations of oral health-related quality of life and health-related quality of life using the Oral Health Impact Profile (OHIP) and the 36-Item Short Form Health Survey (SF-36) developed from the Medical Outcomes Study, respectively. MATERIALS AND METHODS: Oral health-related quality of life was evaluated using the Japanese version of the OHIP, and health-related quality of life was evaluated using scores for the mental component summary (MCS) and physical component summary (PCS) dimensions of the SF-36...
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30025002/evaluation-of-microbial-contamination-in-the-inner-surface-of-titanium-implants-before-healing-abutment-connection-a-prospective-clinical-trial
#16
George Alexandre de Barros Lucena, Rafael Scaf de Molon, Antonio J Moretti, Jamil Awad Shibli, Delane Maria Rêgo
PURPOSE: The objective of this investigation was to assess the microbiologic contamination in the inner surface of titanium implants prior to prosthetic abutment placement. MATERIALS AND METHODS: The study population consisted of partially edentulous individuals who had previously received at least one internal hexagon titanium dental implant. A bacterial sample of the inner surface of the individual dental implant was taken after surgical reopening for healing abutment placement...
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30025001/are-intraoral-radiographs-accurate-in-determining-the-peri-implant-marginal-bone-level
#17
Michele Cassetta, Roberto Di Giorgio, Ersilia Barbato
PURPOSE: The primary objective of this study was to assess the accuracy of periapical radiographs in determining the peri-implant marginal bone level. The accuracy of the linear measurements on radiographs was considered as the absolute difference between the true, intraoperative or surgical marginal bone level measurements (direct bone measurements during surgical procedures) and the radiographic measured distances. The secondary aims were to identify the variables influencing the radiographic evaluation (arch: mandible/maxilla; implant location: anterior/posterior; timing of implant placement: "early delayed" and "prolonged delayed")...
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30025000/interventions-to-maintain-locator-retained-mandibular-overdentures-on-both-external-hex-and-internal-connection-implants-a-retrospective-study
#18
Lucia Fernandez-Estevan, Javier Montero, Eduardo J Selva Otaolaurruchi, Maria Fernanda Sola Ruiz
PURPOSE: To quantify the rate of maintenance interventions of mandibular prostheses: complete dentures and overdentures retained by two implants, with either internal hex or external hex connections. MATERIALS AND METHODS: This study analyzed patients with edentulous mandibles treated with distinct treatment protocols: a control group received complete dentures; a second group received Locator-retained overdentures supported by two external hex connection implants; and a third group received overdentures supported by internal hex connection implants...
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30024999/antimicrobial-efficacy-of-photodynamic-therapy-and-light-activated-disinfection-against-bacterial-species-on-titanium-dental-implants
#19
Bleron Azizi, Ana Budimir, Blerim Mehmeti, Suzana Jakovljević, Ivona Bago, Elizabeta Gjorgievska, Dragana Gabrić
PURPOSE: The aim of this study was to evaluate the efficacy of photodynamic therapy (PDT) and light-activated disinfection (LAD) against a 3-day-old bacterial suspension prepared from three different bacterial species present on titanium dental implants, and to analyze the possible alterations of the implant surfaces as a result of the PDT and LAD. MATERIALS AND METHODS: The study was conducted on 72 titanium dental implants contaminated with a bacterial suspension prepared from three bacterial species: Prevotella intermedia, Aggregatibacter actinomycetemcomitans, and Porphyromonas gingivalis...
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30024998/correlation-between-implant-geometry-implant-surface-insertion-torque-and-primary-stability-in-vitro-biomechanical-analysis
#20
Antonello Falco, Marco Berardini, Paolo Trisi
PURPOSE: Primary implant stability represents the first step for successful osseointegration. The knowledge of the correlation between host bone density, insertion torque, and implant macrogeometry seems to be fundamental to achieve sufficient primary implant bone fixation in each clinical situation. The purpose of this study was to measure, in vitro, the impact of dental implant macrogeometry and insertion torque values on primary stability in relation to different bone densities, representing both the human mandible and maxilla...
July 2018: International Journal of Oral & Maxillofacial Implants
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