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International Journal of Oral & Maxillofacial Implants

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https://www.readbyqxmd.com/read/28403249/accuracy-of-cone-beam-computed-tomography-grayscale-density-in-determining-bone-architecture-in-the-posterior-mandible-an-in-vivo-study-with-microcomputed-tomography-validation
#1
Feng Wang, Wei Huang, Yiqun Wu, Jesus Montanero-Fernandez, Rachel A Sheridan, Hom-Lay Wang, Alberto Monje
PURPOSE: The aim of this study was to analyze the reliability of cone beam computed tomography (CBCT) in assessing the grayscale density (GSD) of bone by comparing it with microcomputed tomography (μ-CT) data. MATERIALS AND METHODS: A total of 50 subjects with lost mandibular molars were included in the study. To assess the bone GSD, a previously fabricated template made of acrylic resin with a 2-mm-diameter metal rod was positioned, and CBCT was performed. The bone biopsies for μ-CT analysis were then obtained during implant surgery...
April 12, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28403248/effect-of-buccal-implant-inclination-on-stresses-around-two-implant-retained-overdentures-with-resilient-stud-attachments
#2
Moustafa Abdou Elsyad, Karima Salah Abid, Elsayed Abd Elkhalek
PURPOSE: This study aimed to evaluate the effect of buccal implant inclination on stresses around two-implant-retained overdentures with resilient stud attachments. MATERIALS AND METHODS: Four acrylic models representing a mandibular edentulous ridge were constructed. For each model, two implants were placed at canine areas. Models were classified into four types according to the degree of buccal implant inclination: Group I (GI, 0 degrees), Group II (GII, 10 degrees), Group III (GIII, 20 degrees), and Group IV (GIV, 30 degrees)...
April 12, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28403247/early-complications-of-immediate-loading-in-edentulous-full-arch-restorations-a-retrospective-analysis-of-88-cases
#3
Iñaki Cercadillo-Ibarguren, Alba Sánchez-Torres, Rui Figueiredo, Eduard Valmaseda-Castellón
PURPOSE: To describe the clinical outcomes and complications related to provisional prostheses after full-arch implant-supported rehabilitation by means of an immediate loading protocol. MATERIALS AND METHODS: This retrospective cohort study included patients who were consecutively treated with full-arch implant-supported restorations with a minimum of four implants (Replace Select Tapered TiUnite, Nobel Biocare AB) per arch and conical abutments (multi-unit, Nobel Biocare AB) by means of an immediate loading protocol...
April 12, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28334060/bone-repair-process-in-defects-of-diabetic-rats-filled-with-autogenous-bone-graft-and-covered-with-homogenous-bone-matrix-membrane-or-polytetrafluoroethylene-membrane
#4
Carlos Alberto Timóteo, Alessandra Marcondes Aranega, Elio Hitoshi Shinohara, Juliana Zorzi Coléte
PURPOSE: To analyze the process of repair of bone defects in diabetic rats filled with autogenous bone and covered with membranes of homogenous bone matrix or expanded polytetrafluoroethylene (ePTFE). MATERIALS AND METHODS: One hundred twenty male rats were divided into two groups: group 1 (IC), without systemic alterations (control), received an intravenous injection of citrate buffer at 0.01 M, pH 4.5; group 2 (IID) (diabetic) received an intravenous injection of streptozotocin (Sigma-Aldrich) dissolved in 0...
March 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28334059/abutment-disconnection-reconnection-affects-peri-implant-marginal-bone-levels-a-meta-analysis
#5
Theofilos Koutouzis, Fatemeh Gholami, John Reynolds, Tord Lundgren, Georgios A Kotsakis
PURPOSE: Preclinical and clinical studies have shown that marginal bone loss can be secondary to repeated disconnection and reconnection of abutments that affect the peri-implant mucosal seal. The aim of this systematic review and meta-analysis was to evaluate the impact of abutment disconnections/reconnections on peri-implant marginal bone level changes. MATERIALS AND METHODS: To address this question, two reviewers independently performed an electronic search of three major databases up to October 2015 complemented by manual searches...
March 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28334058/benchmarking-outcomes-in-implant-prosthodontics-partial-fixed-dental-prostheses-and-crowns-supported-by-implants-with-a-turned-surface-over-10-to-28-years-at-the-university-of-toronto
#6
Asbjørn Jokstad, Anne M Gussgard, Joseph Fava, Mark Lin, Babak Shokati, Eszter Somogyi-Ganss, Brenton Winnett, Mohammed Zahran
PURPOSE: The aim of this noninterventional, retrospective study was to benchmark the outcomes of patients with partial fixed prostheses supported by implants treated at the University of Toronto at least 10 years earlier. A study protocol for assessing outcomes on like patients developed at the University of Bern, Switzerland, was followed. MATERIALS AND METHODS: All patients who had received at least one implant before 2002 were considered eligible to be included in the study (n = 298)...
March 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28334057/esthetic-and-patient-centered-outcomes-of-single-implants-a-retrospective-study
#7
Björn Gjelvold, Bruno Ramos Chrcanovic, Ingrid Collin Bagewitz, Jenö Kisch, Tomas Albrektsson, Ann Wennerberg
PURPOSE: The aims of this clinical study were to retrospectively evaluate implant survival, patient satisfaction, and radiographic, clinical, and esthetic outcomes following single-implant treatment. MATERIALS AND METHODS: Eighty-seven patients, with a total of 126 implants (XiVE S, Dentsply Implants), who received single implant-retained crowns between 2004 and 2011 were retrospectively evaluated. Implant survival, marginal bone levels (MBL), changes in implant/mesial tooth vertical relationship, pink esthetic score (PES), white esthetic score (WES), patient assessment of the esthetics (visual analog scale), and oral health impact profile (OHIP-14) were evaluated...
March 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28334056/intra-and-postoperative-complications-of-lateral-maxillary-sinus-augmentation-in-smokers-vs-nonsmokers-a-systematic-review-and-meta-analysis
#8
Samaneh Ghasemi, Akbar Fotouhi, Neda Moslemi, Zahra Chinipardaz, Jafar Kolahi, Mojgan Paknejad
PURPOSE: This meta-analysis and systematic review focused on the following question: Does tobacco smoking increase the risk of intra- or postoperative complications of lateral maxillary sinus floor elevation? MATERIALS AND METHODS: The following electronic databases were searched up to and including November 2015 without language restriction: CENTRAL, MEDLINE, Google Scholar, Scopus, Sirous, and Doaj. Studies were included if rates of intra-or postoperative complications of sinus floor elevation in smokers and nonsmokers were recorded separately...
March 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28334055/the-effect-of-coded-healing-abutments-on-treatment-duration-and-clinical-outcome-a-randomized-controlled-clinical-trial-comparing-encode-and-conventional-impression-protocols
#9
Jaafar Abduo, Chen Chen, Eugene Le Breton, Alexandra Radu, Josephine Szeto, Roy Judge, Ivan Darby
PURPOSE: To compare the Encode impression protocol (Biomet 3i) with the conventional impression protocol in terms of treatment duration, clinical accuracy, and outcome up to the first postplacement review of single-implant crowns. MATERIALS AND METHODS: A total of 45 implants were included in this study. The implants were randomly allocated to the Encode group (23 implants) or the conventional group (22 implants). At the time of surgery, all implants received two-piece Encode healing abutments...
March 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28296984/implant-stability-and-bone-characteristics-in-free-fibula-flaps-used-for-jaw-reconstruction-a-prospective-cohort-study
#10
Vinay V Kumar, Ullash Kumar, Vijay Pillai, Vinotha Ponnusamy, Bilal Al-Nawas, Moni A Kuriakose
PURPOSE: The primary objective of this prospective cohort study was to evaluate primary and secondary implant stability values of implants placed into healed free fibula-reconstructed mandibles. The secondary objective was to investigate whether a correlation existed between primary implant stability and the quantity of cortical bone-implant contact and of cortical fibular bone in contact with the implants. MATERIALS AND METHODS: The study participants are patients enrolled in a registered trial (No...
March 17, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28296983/comparing-the-fracture-resistance-of-alternatively-engineered-zirconia-abutments-with-original-equipment-manufactured-abutments-with-different-implant-connection-designs
#11
Joseph M Jarman, Techkouhie Hamalian, Anthony P Randi
PURPOSE: Aftermarket computer-aided design/computer-assisted manufacture (CAD/CAM) milled zirconia (Zr) abutments were recently introduced with minimal independent research regarding their fracture resistance. Third-party manufacturers often alter the original equipment manufacturers' (OEM) design with unknown effects on fracture resistance. These alterations include elimination of the titanium insert with subsequent introduction of Zr into the implant, changes to connection designs and shapes, and/or alterations to prosthetic screw design...
March 15, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28296982/management-of-extraoral-complications-in-a-patient-treated-with-four-zygomatic-implants
#12
Andrew Dawood, Nicholas Kalavresos
This article details the significant complications associated with treatment of a patient who underwent maxillary reconstruction based entirely on zygomatic implants. The use of zygomatic implants is becoming increasingly widespread, and treatment has been shown to be predictable and generally free of surgical complications. However, extending from the maxillary alveolus, alongside or through the maxillary antrum, toward the zygoma or orbital rim, these long implants have the potential to create a range of complications that may be more serious than those encountered with conventional dental implants...
March 15, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28296981/mucosa-thickness-and-peri-implant-crestal-bone-stability-a-clinical-and-histologic-prospective-cohort-trial
#13
Luigi Canullo, Fabio Camacho-Alonso, Marco Tallarico, Silvio Mario Meloni, Erta Xhanari, David Penarrocha-Oltra
PURPOSE: To correlate soft tissue thickness and peri-implant bone remodeling of platform-switching implants. MATERIALS AND METHODS: This comparative prospective trial evaluated, for up to 3 years after implant loading, the influence of soft tissue thickness on changes in peri-implant marginal hard tissue levels. Any patient who was partially edentate in the mandible and required at least two adjacent implant-supported restorations was recruited at the University of Valencia in Spain...
March 15, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28231348/association-between-bone-graft-volume-and-maxillary-sinus-membrane-elevation-height
#14
Tetsuya Sonoda, Takehiro Harada, Nobuyuki Yamamichi, Alberto Monje, Hom-Lay Wang
PURPOSE: Maxillary sinus augmentation via crestal approach has been advocated as an alternative approach for sinus membrane elevation. Presently, no study has examined the relationship between the amount of bone grafting material placed and the final sinus membrane elevation height. Therefore, the present study was aimed at investigating the extent of sinus membrane elevation height depending on the amount of bone grafting material inserted as well as three-dimensionally assessing the likelihood of membrane perforation during membrane elevation...
February 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28231347/histomorphometric-results-after-postextraction-socket-healing-with-different-biomaterials-a-systematic-review-of-the-literature-and-meta-analysis
#15
Stefano Corbella, Silvio Taschieri, Luca Francetti, Roberto Weinstein, Massimo Del Fabbro
PURPOSE: The aim of this systematic review was to investigate which material is the most effective bone substitute for alveolar bone healing by evaluating histomorphometric outcomes after healing of postextraction sockets in humans. MATERIALS AND METHODS: A manual and electronic search (PubMed, EMBASE, Cochrane Library) was performed using a search string prepared ad hoc. Data were statistically analyzed by calculating weighted mean percentage of new bone formation (primary outcome) and weighted mean percentage of residual biomaterial, soft/connective tissue, and nonmineralized tissue (secondary outcomes) in the biopsies...
February 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28231345/in-vitro-evaluation-of-three-methods-for-the-retrieval-of-fractured-screw-fragments-from-dental-implants
#16
Rubén Agustín-Panadero, Carlos Labaig-Rueda, Beatriz Castillo-Rodriguez, Alberto Ferreiroa, María Fernanda Solá-Ruíz
PURPOSE: To compare the effectiveness of different methods of fractured screw fragment retrieval from dental implants, comparing a conventional method (use of an exploration probe and ultrasonic tips) with two mechanical retrieval kits. MATERIALS AND METHODS: One hundred thirty-five screws in implant internal connections were fractured to test fragment retrieval comparing three methods: conventional method with the use of an explorer probe and ultrasonic tips (group CE), extraction with a mechanical kit with a guide cylinder (group MK1), and extraction with a mechanical kit without a guide cylinder (group MK2)...
February 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28212455/retrospective-analysis-of-dental-implants-placed-between-2012-and-2014-indications-risk-factors-and-early-survival
#17
Koenraad Grisar, Deepti Sinha, Joseph Schoenaers, Titiaan Dormaar, Constantinus Politis
PURPOSE: The aim of this study was to review the indications for implant placement, early outcomes, and associated risk factors. MATERIALS AND METHODS: A retrospective cohort study design was used. The study was composed of a group of 509 consecutive patients, which represented the total number of patients treated from 2012 to 2014 in the Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Belgium. The authors analyzed the indications for implant placement and the potential risk factors for early implant failure...
February 17, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28212454/clinical-comparison-of-screw-retained-and-screwless-morse-taper-implant-abutment-connections-one-year-postloading-results
#18
Esma Geckili, Onur Geckili, Hakan Bilhan, Omer Kutay, Tayfun Bilgin
PURPOSE: The purpose of this study was to clinically evaluate the screwless Morse taper implant-abutment connection type, in which the retention screw is totally eliminated, in terms of stability, success, periodontal parameters, and marginal bone levels after 1 year of function by comparing it with a passive fit internal implant-abutment connection, wherein a space exists between the matching components. MATERIALS AND METHODS: Each edentulous subject received an implant with a screwless Morse taper connection (MT) in the left canine area of the mandible and an implant with a screw-retained implant-abutment connection (SR) in the right canine area of the mandible...
February 17, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28212453/bone-morphogenetic-protein-2-hybridized-with-nano-anchored-oligonucleotides-on-titanium-implants-enhances-osteogenic-differentiation-in-vivo
#19
Florian Böhrnsen, Jennifer Rublack, Nelia Aeckerle, Anne Foerster, Bernd Schwenzer, Judith Reichert, Dieter Scharnweber, Henning Schliephake
PURPOSE: Previous in vitro studies have shown that DNA oligonucleotides (ODN) can be successfully used as anchor strands for the binding and retarded release of biologically active recombinant human bone morphogenetic protein 2 (rhBMP-2). The aim of the present study was to test the hypothesis that rhBMP-2 bound to the surface of titanium implants through hybridization with nano-anchored ODN strands is biologically active and can enhance the induction of osteogenic markers in peri-implant bone in vivo...
February 17, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28212452/bone-to-implant-contact-and-new-bone-formation-within-human-freeze-dried-bone-blocks-grafted-over-rabbit-calvaria
#20
Zvi Artzi, Karen Anavi-Lev, Avital Kozlovsky, Liat Chaushu, Frank Schwarz, Haim Tal
PURPOSE: To assess the extent of osseointegration with rough-surface implants and new bone formation (NBF) within human freeze-dried bone blocks (h-FDB) grafted over rabbit calvaria. MATERIALS AND METHODS: A total of 18 rectangular h-FDB blocks were stabilized bilaterally to the calvaria of nine New Zealand rabbits by two mini titanium screws each. A total of 18 rough-surface implants (5.0 × 6.0-mm) were placed, 9 simultaneously (immediate placement [IP]) on one side and 9 at 3 months after block grafting (delayed placement [DP]) on the contralateral side...
February 17, 2017: International Journal of Oral & Maxillofacial Implants
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