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International Journal of Oral & Maxillofacial Implants

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https://www.readbyqxmd.com/read/28520823/comparison-of-tunnel-and-crestal-incision-techniques-in-reconstruction-of-localized-alveolar-defects
#1
Nur Altiparmak, Sina Uckan, Burak Bayram, Sıdıka Soydan
PURPOSE: The aim of this study was to compare the complication rates of recipient sites prepared using two incision techniques: crestal and tunnel. MATERIALS AND METHODS: In this prospective study, patients underwent augmentation procedures (68 patients; 75 sites) by the same surgeon that were performed consecutively using the crestal incision technique (27 horizontal, 10 vertical; crestal group) or the tunnel incision technique (27 horizontal, 11 vertical; tunnel group)...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28518187/in-vitro-shock-absorption-tests-on-implant-supported-crowns-influence-of-crown-materials-and-luting-agents
#2
Martin Rosentritt, Sibylle Schneider-Feyrer, Michael Behr, Verena Preis
PURPOSE: To investigate the force absorption capacity of implant-supported crowns made of different restorative materials and connected to abutments with different luting agents. MATERIALS AND METHODS: Molar crowns were milled of different computer-aided design/computer-aided manufacture materials (n = 8 crowns per material): polymethyl methacrylate, polyether ether ketone, composite, lithium disilicate, titanium, and zirconia. Crowns were mounted on titanium implant replicas using different luting agents: uncemented, temporarily cemented (zinc oxide-eugenol cement), conventionally cemented (zinc oxide phosphate cement), and adhesively bonded...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28518186/molecular-activity-and-osseointegration-after-single-dose-irradiation-an-in-vivo-study
#3
Jan Nyberg, Gisela Helenius, Christer Dahlin, Carina B Johansson, Omar Omar
PURPOSE: Irradiation results in deleterious effects on bone healing and integration of titanium implants. The impact of irradiation on osseointegration has been demonstrated in histologic studies, but the underlying molecular mechanisms have not been explored. This study aimed to investigate the effects of single-dose irradiation on the expression of biologic mediators crucial for inflammation, bone formation, and bone remodeling and to relate these molecular activities to implant stability after a 5-week healing period...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28518185/osteogenic-potential-of-adipose-derived-macrospheroids-cocultured-with-cd11b-monocytes
#4
Hidemi Nakata, Maiko Yamamoto, Emi Okada, Tomoko Nagayama, Munemitsu Miyasaka, Shohei Kasugai, Shinji Kuroda
PURPOSE: Among potential cell-based therapies, adipose-derived stem cells (ASCs) have been proposed as a promising source of stem cells for tissue regeneration. Although many recent clinical trials have investigated the use of adipose tissue or ASCs in transplantation, analysis of the microstructures of outgrowing macrosized spheroids (macrospheroids) or three-dimensional coculture of ASC spheroids and monocyte/macrophage lineages has not been performed. The aim of this study was to analyze the microstructures of murine-derived ASC macrospheroids and the growth and osteogenic potential of these macrospheroids in a three-dimensional environment and after calcification induction by coculture with monocytes...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28518184/a-method-for-minimizing-rotational-errors-of-implant-prostheses
#5
Hyeonjong Lee, Kung-Rock Kwon, Janghyun Paek, Ahran Pae, Kwantae Noh
PURPOSE: Rotational errors of implants can occur during two stages: when connecting impression copings with implants, and when connecting impression copings with analogs. The aim of this study was to determine ways to minimize these rotational errors. MATERIALS AND METHODS: Three types of implants were prepared: a tissue-level implant with an internal octagon 8-degree Morse taper connection, a bone-level implant with an internal hex 11-degree Morse taper connection, and a bone-level implant with an external hex connection...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28518183/preclinical-evaluation-of-a-crown-splinted-custom-root-shaped-implant
#6
Elias D Kontogiorgos, Poorva Gharpure, Eberechukwu O Iheanacho, Christopher J Gonzales, Lynne A Opperman
OBJECTIVE: To test whether a Maryland bridge-type splint provides adequate stability for a custom root-shaped implant to osseointegrate in a manner substantially equivalent to that of a threaded implant. METHODS: Six beagle dogs were subjected to intraoral impressions and cone beam scans that were used to fabricate custom root-shaped implants (RTIs) and crowns. Premolars in the mandible (P4) and in the maxilla (P3) were extracted, and 24 RTIs were immediately placed in extraction sockets...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28518182/triple-layered-closure-of-an-oroantral-fistula-a-case-report
#7
Eric George
Oroantral fistulae (OAF) are surgical sequelae that require complete resection and often leave large defects for the surgeon to repair. Closing these lesions is often technique sensitive and requires a detailed protocol, which, if not adhered to, can lead to recurrence. This case report presents a combined approach to closing an OAF by first excising the fistula and then resecting to retrieve the buccal fat pad to form a pedicle graft over the wound site. Next, a platelet-rich fibrin membrane is sandwiched over the buccal fat pad and completely covered by a buccal advancement flap...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28518181/a-semi-automatic-algorithm-for-preliminary-assessment-of-labial-gingiva-and-alveolar-bone-thickness-of-maxillary-anterior-teeth
#8
Sheng-Hung Chen, Hsun-Liang Chan, Yongning Lu, Sim-Heng Ong, Hom-Lay Wang, Eng Hong Ko, Po-Chun Chang
PURPOSE: Soft and hard tissue volumes are critical for implant placement and long-term stability. Although the literature has adequately addressed tissue biotypes of Western populations, pertinent information about Asian populations is limited. This study aimed to evaluate the soft and hard tissue profiles of the maxillary anterior teeth of the Taiwanese population using a semi-automatic algorithm. MATERIALS AND METHODS: Cone beam computed tomography images of 11 adults with well-aligned maxillary anterior teeth were overlaid with those of cast models, based on the tooth crowns manually outlined by two independent observers...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28518180/the-effects-of-laser-with-different-parameters-and-crosshatching-on-fibroblast-adhesion-and-proliferation-to-implant-surfaces
#9
Hakki Çelebi, Pembegül Uyar Arpacı, Ilhami Çelik, Serhan Akman
PURPOSE: To compare the adhesion and proliferation effect of HGF-1 cells on pure titanium disks when the surfaces are unprocessed (machined surfaces after slicing) or modified with a laser. MATERIALS AND METHODS: Twenty-eight titanium disks were divided into four groups. Three surface topographies were created using an erbium fiber laser: group 1 (unidirectional application [no crosshatch]), group 2 (crosshatching in two directions), and group 3 (crosshatching in three directions)...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28518179/cleaning-disinfection-and-sterilization-protocols-employed-for-customized-implant-abutments-an-international-survey-of-100-universities-worldwide
#10
Luigi Canullo, Marco Tallarico, Stephen Chu, David Pennarocha, Mutlu Özcan, Paolo Pesce
PURPOSE: American and European standards recommend sterilization of customized abutments before connecting them to implants, as customized abutments are considered semi-critical medical devices. Since standardized procedures could not be identified in the literature on implantology, this survey evaluated the protocols employed at different universities worldwide to clean, disinfect, and/or sterilize customized abutments before their connection to bone-level implants. MATERIALS AND METHODS: The survey took place between October 2015 and January 2016...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
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
#11
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/28403247/early-complications-of-immediate-loading-in-edentulous-full-arch-restorations-a-retrospective-analysis-of-88-cases
#12
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/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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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/28231348/association-between-bone-graft-volume-and-maxillary-sinus-membrane-elevation-height
#20
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
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