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Implant Dentistry

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https://www.readbyqxmd.com/read/28234709/surgical-and-patient-factors-affecting-marginal-bone-levels-around-dental-implants-a-comprehensive-overview-of-systematic-reviews
#1
Miriam Ting, Matthew S Tenaglia, Gary H Jones, Jon B Suzuki
OBJECTIVES: The objective of this systematic review was to perform a comprehensive overview of systematic reviews and meta-analyses of surgical and patient factors affecting marginal bone loss around osseointegrated dental implants in humans. MATERIAL AND METHODS: Electronic databases were searched for systematic reviews and meta-analyses published up to November 2015. RESULTS: Of the 41 articles selected, 11 evaluated implant factors, 10 evaluated patient factors, 19 evaluated surgical protocol-related factors, and one evaluated all three factors...
February 23, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28234708/the-palatal-window-for-treating-an-incompletely-augmented-maxillary-sinus
#2
Salvatore Florio, Takanori Suzuki, Sang-Choon Cho
Maxillary sinus augmentation through a lateral window is reported as one of the most predictable bone augmentation procedures before implant placement. The elevation of the membrane represents a delicate and crucial step that allows the creation of the space for the bone graft material. If the elevation is not completed, the regenerated bone might be inadequate for the implant placement. In this case, a new intervention will be necessary to complete the bone augmentation. Reaccessing from a lateral window, however, would be challenging due to thickness of the buccal boney wall because of the first grafting procedure; therefore, a different approach has to be used...
February 23, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28234707/osseointegration-of-titanium-implants-with-different-rough-surfaces-a-histologic-and-histomorphometric-study-in-an-adult-minipig-model
#3
Massimo Del Fabbro, Silvio Taschieri, Elena Canciani, Alessandro Addis, Federica Musto, Roberto Weinstein, Claudia Dellavia
BACKGROUND: Many chemical and physical modifications of titanium surfaces were introduced, aiming at improving surface bioactivity, but few comparative evidence exists. OBJECTIVE: To evaluate histologically in minipigs the osseointegration of implants made of commercially pure (CP) titanium or titanium alloy, treated by different roughening procedures. MATERIAL AND METHODS: Three sandblasted acid-etched (SA) surfaces, 2 anodized (AN), and 1 double acid-etched (DAE) were compared...
February 23, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28207598/newly-formed-bone-induced-by-recombinant-human-bone-morphogenetic-protein-2-a-histological-observation
#4
Azumi Hirata, Takaaki Ueno, Peter K Moy
PURPOSE: To observe, histologically, bone induced by recombinant human bone morphogenetic protein-2 (rhBMP-2) in onlay grafted and sinus lifted alveolaris. MATERIAL AND METHODS: Eighteen patients were treated with rhBMP-2 at concentration 1.5 mg/mL with an absorbable collagen sponge (ACS). The treated bone was harvested with small trephine bur at 5 or 7 months after surgery for the micro Computer Scanning (CT) and light microscopic observation. RESULTS: Micro CT showed clearly 3-dimensional trabecular bone structure...
February 14, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28207597/implant-anchorage-in-the-nasopalatine-canal-for-the-rehabilitation-of-severely-atrophic-maxilla
#5
Pâmela Leticia Dos Santos, Gustavo Henrique Souza Silva, Raquel Damazia da Silva, Fernanda Rayssa Da Silva Pereira, Jéssica Lemos Gulinelli
PURPOSE: This study aimed to describe the clinical case of implant placement in the nasopalatine canal as an aid for atrophic maxilla rehabilitation. CASE REPORT: The surgical procedure was carried out in 2 stages, the first part consisted of a surgery to lift the maxillary sinus membrane associated with the xenogeneic bone placement and the second part consisted of the surgery for the implants placement, both under local anesthesia. A number of seven osseointegrated implants were placed in the maxilla, one was anchored in the nasopalatine canal region after having its neurovascular content emptied by means of the use of drill threads of the implant system...
February 14, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28207599/long-term-implant-survival-after-100-maxillary-sinus-augmentations-using-plasma-rich-in-growth-factors
#6
Ismael Khouly, Simón Pardiñas López, Ignacio Aliaga, Stuart J Froum
PURPOSE: To identify determinants of long-term implant survival after sinus augmentation procedure (SAP) using a combination of plasma rich in growth factors (PRGF) and graft material. MATERIALS AND METHODS: Patients were included in this retrospective study if they underwent SAP through a lateral wall approach using PRGF in combination with mainly xenograft, and received implants restored for at least 1 year. Sociodemographic, behavioral and implant characteristics (clinical factors, implant details, surgical details, prosthesis details, and complications) were analyzed...
February 13, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28157816/synthesis-and-characterization-of-%C3%AE-tricalcium-phosphate-derived-from-haliotis-sp-shells
#7
Kyeong-Rok Kang, Zheng-Gang Piao, Jae-Sung Kim, In-A Cho, Min-Ji Yim, Bok-Hee Kim, Ji-Su Oh, Jun Sik Son, Chun Sung Kim, Do Kyung Kim, Sook-Young Lee, Su-Gwan Kim
PURPOSE: To develop a methodology for the synthesis of β-tricalcium phosphate (β-TCP, Ca3(PO4)2) from the shell of Haliotis sp. (abalone shell) and to verify its characterization and biocompatibility. MATERIALS AND METHODS: Calcium oxide (CaO) was synthesized from abalone shell by sintering and was suspended in distilled water to prepare calcium hydroxide (Ca(OH)2). For the synthesis of calcium carbonate (CaCO3), carbon dioxide was used to infuse Ca(OH)2 at pH 7...
February 2, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28157815/resistance-of-mandibular-polyurethane-replicas-to-fracture-after-removal-of-blocks-from-the-symphysis-and-ramus
#8
Mohanad Al-Sabbagh, Georgios Romanos, Scott R Price, David A Puleo, Fonda G Robinson, Mark V Thomas
BACKGROUND: When block grafts are harvested intraorally, the donor sites may act as stress concentrators and alter the structural integrity of the mandible. PURPOSE: The study aimed to compare displacement and load failure between intact polyurethane mandibular replicas and similar replicas from which blocks were taken at the symphysis or the ramus. It also aimed to identify trends of load failure. MATERIALS AND METHODS: Thirty-five mandibular replicas were tested to failure with an electromagnetic material testing unit...
February 2, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28125520/influence-of-maxillary-sinus-width-on-new-bone-formation-after-transcrestal-sinus-floor-elevation-a-proof-of-concept-prospective-cohort-study
#9
Teresa Lombardi, Claudio Stacchi, Federico Berton, Tonino Traini, Lucio Torelli, Roberto Di Lenarda
PURPOSE: Graft maturation in the maxillary sinus requires adequate angiogenesis and osteoprogenitor cells migration from the surrounding bony walls: the aim of this study was to analyze the correlation between sinus cavity dimensions and new bone formation after transcrestal sinus floor elevation (tSFE). METHODS: Patients needing maxillary sinus augmentation (residual crest height ≤ 4 mm) were treated with tSFE using xenogeneic granules. Six months later, bone-core biopsies were retrieved for histological analysis in the implant insertion sites...
January 25, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28125519/maxillary-sinus-dimensions-decrease-as-age-and-tooth-loss-increase
#10
Miguel Velasco-Torres, Miguel Padial-Molina, Gustavo Avila-Ortiz, Raúl García-Delgado, Francisco OʼValle, Andrés Catena, Pablo Galindo-Moreno
OBJECTIVE: To investigate the correlation between patient-dependent variables and dimensional variations of the maxillary sinus. METHODS: In this cross-sectional study, a total of 394 individual cone-beam computed tomography scans were evaluated by one calibrated examiner to measure the total volume of the maxillary sinus, the distance between the medial and the lateral walls at 5, 10, and 15 mm vertically from the sinus floor, the height of septa (if present), and the height of the maxillary sinus cavity from both the alveolar crest and the sinus floor to the meatus...
January 25, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28125518/a-survey-of-the-opinion-and-experience-of-uk-dentists-part-2-risk-assessment-strategies-and-the-management-of-iatrogenic-trigeminal-nerve-injuries-related-to-dental-implant-surgery
#11
Zehra Yilmaz, Cemal Ucer, Edwin Scher, Jon Suzuki, Tara Renton
BACKGROUND: Dental implant-related iatrogenic injuries are proportionally increasing with dental implant surgery. This study assessed the experience of implant-related trigeminal nerve (TG) injuries among UK dentists. Risk management strategies and management of implant-related inferior alveolar nerve (IAN), mental nerve (MN), and lingual nerve injuries were investigated. METHODS: A survey was distributed among 405 dentists attending an Association of Dental Implantology (ADI) congress, of which 187 completed the survey...
January 25, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28125517/efficacy-of-cone-beam-computed-tomography-in-evaluating-bone-quality-for-optimum-implant-treatment-planning
#12
Jie Liu, Huan-Yu Chen, Hamza DoDo, Hadil Yousef, Allen R Firestone, Jahanzeb Chaudhry, William M Johnston, Damian J Lee, Hany A Emam, Do-Gyoon Kim
PURPOSE: This study examined (1) if cone-beam computed tomography (CBCT) can determine relative differences in bone mineral density distribution using clinical images of patients' mandibular bone and (2) if the relative differences can be used to detect the effects of sex and age on bone mineral density distribution. MATERIALS AND METHODS: Sixty-six clinical CBCT images from patients (36 females and 30 males) of 3 age groups (40, 50, and 60 years) were identified...
January 25, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28114266/clinical-performance-of-narrow-diameter-titanium-zirconium-implants-a-systematic-review
#13
Zahi Badran, Xavier Struillou, Nicolas Strube, David Bourdin, Michel Dard, Assem Soueidan, Alain Hoornaert
PURPOSE: Implant-supported prosthetic rehabilitations are in constant augmentation in everyday dental practice. This is largely due to increasing demand from patients for fixed or implant-stabilized prosthesis, although they are frequently reticent to complex preimplant bone augmentation surgeries, whenever bone volume is lacking. Narrow-diameter implants (NDI; ≤3.5 mm) have been developed to offer relatively simple implant solutions in challenging bone-deficient sites. However, concerns regarding their mechanical properties have been raised...
January 19, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28114265/randomized-controlled-trial-comparing-the-effects-of-2-analgesic-drug-protocols-in-patients-who-received-5-dental-implants
#14
Isaac Fernando Meta, Miriam Bermolen, Ricardo Macchi, Jorge Aguilar
PURPOSE: This randomized controlled trial compares postoperative pain and swelling after placing dental implants in patients treated with nonsteroidal anti-inflammatory drugs (NSAIDs) versus NSAIDs and corticosteroids. MATERIALS AND METHODS: Thirty patients received 5 dental implants each in the interforaminal region of the mandible. All patients were treated with ketorolac tromethamine 10 mg, 2 tablets daily for 2 days and amoxicillin 500 mg, 3 tablets daily for 7 days starting 24 hours before surgery...
January 19, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28114264/alveolar-ridge-splitting-versus-autogenous-onlay-bone-grafting-complications-and-implant-survival-rates
#15
Nur Altiparmak, S S Akdeniz, B Bayram, S Gulsever, S Uckan
PURPOSE: To compare the complications and implant survival rates of localized alveolar ridge deficiencies in the horizontal dimension reconstructed by alveolar ridge splitting (ARS) or autogenous onlay bone grafting (OBG). MATERIALS AND METHODS: Twenty-eight ARS and 28 OBG were performed. The survival rate of the all included implants was evaluated using the clinical and radiographical evaluation criteria of Misch et al. Temporary exposure of graft, mild infection, temporary paresthesia, and bad split were defined as minor complications; permanent exposure of graft, loss of graft, and permanent paresthesia were defined as major complications...
January 19, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28005570/in-vitro-microbiological-analysis-of-bacterial-seal-in-hybrid-zirconia-abutment-tapered-connection
#16
Maurício Marcelo Harlos, Thiago Bezerra da Silva, Daiane C Peruzzo, Marcelo H Napimoga, Julio Cesar Joly, Elizabeth F Martinez
PURPOSE: The aim of this study was to evaluate the bacterial seal at the implant-hybrid zirconia abutment interface and Morse taper-type connections through in vitro microbiological analysis. MATERIALS AND METHODS: Sixteen implants and their respective abutments were divided into 3 groups: test (10 sets), positive control (3 sets), and negative control (3 sets). In the test group, 10 implants were contaminated with Escherichia coli using a sterile inoculating loop to the inner portion of the implants, followed by torque application to the abutment (30 N·cm)...
December 21, 2016: Implant Dentistry
https://www.readbyqxmd.com/read/28002218/color-analysis-of-periimplant-soft-tissues-focusing-on-implant-system-a-case-series
#17
Elena M Varoni, Giuseppe Moltrasio, Marco Gargano, Nicola Ludwig, Giovanni Lodi, Riccardo Scaringi
PURPOSE: To assess the impact of implant system on color harmonization of periimplant mucosa. MATERIALS AND METHODS: In this case series, color of periimplant mucosa was compared with color of natural tooth gingiva. Seventeen intercanine implants were analyzed (11 bone level [BL], 6 tissue level [TL] implants). Colorimetric data, at 2, 4, and 6 mm from gingival margin, were collected through fiber optics reflectance spectroscopy, and color differences calculated as ΔE...
December 19, 2016: Implant Dentistry
https://www.readbyqxmd.com/read/27984336/demineralized-xenogenic-dentin-and-autogenous-bone-as-onlay-grafts-to-rabbit-tibia
#18
Adel Al-Asfour, Payam Farzad, Ala Al-Musawi, Christer Dahlin, Lars Andersson
PURPOSE: The present study was undertaken to evaluate the healing pattern of xenogenic demineralized dentin onlay grafts in comparison with autogenous bone grafts to the rabbit tibia. MATERIAL AND METHODS: Eight 6-month-old New Zealand male rabbits were used in the experiments. Standardized sized dentin blocks from human premolars and similar autogenous bone blocks harvested from tibia were grafted as onlay blocks on each tibia (n = 8 × 2). All animals were killed after a healing period of 12 weeks...
December 15, 2016: Implant Dentistry
https://www.readbyqxmd.com/read/27922455/primary-stability-of-cylindrical-and-conical-dental-implants-in-relation-to-insertion-torque-a-comparative-ex-vivo-evaluation
#19
Henning Staedt, Victor Palarie, Arne Staedt, Jens M Wolf, Karl Martin Lehmann, Peter Ottl, Peer W Kämmerer
INTRODUCTION: The aim of this ex vivo study was to investigate the influence of different insertion torques on primary stability of a conical and a cylindrical implant system. MATERIALS AND METHODS: Thirty-two dental implants (Astra Tech OsseoSpeed 5.0 S × 11 mm cylindrical [n = 16] and 5.0 × 11 mm conical [n = 16]) were inserted with 20, 30, 40, and 45 N·cm into fresh porcine bone of mixed trabecular-cortical quality. Before insertion, bone quality was assessed via cone beam tomography...
December 2, 2016: Implant Dentistry
https://www.readbyqxmd.com/read/27918313/a-comparison-of-the-mechanical-measures-used-for-assessing-orthodontic-mini-implant-stability
#20
Yara K Hosein, S Jeffrey Dixon, Amin S Rizkalla, Ali Tassi
PURPOSE: Mechanical loosening remains a common complication associated with mini-implant failure. The purpose of this study was to compare common mechanical measures of mini-implant stability to determine their association and reliability. MATERIALS AND METHODS: Ninety self-drilling orthodontic mini-implants from 6 manufacturers were inserted into artificial bone blocks. Insertion torques (ITs) and Periotest values (PVs) were measured. Subsequently, mini-implants underwent pull-out testing for measures of pull-out load (POL) and screw displacement (ScrD)...
December 1, 2016: Implant Dentistry
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