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Implant Dentistry

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https://www.readbyqxmd.com/read/28795957/influence-of-abutment-surface-treatments-on-screw-loosening-of-morse-taper-implants
#1
Patricia Mitiko Asanuma Hirayama, Lauren Oliveira Lima Bohner, Juliana Marotti, Washington Steagall, Dalva Cruz Laganá, Pedro Tortamano
PURPOSE: To evaluate the effect of blasting and bonding on abutment surface to prevent screw loosening in Morse taper connections. MATERIAL AND METHODS: Twenty-eight Morse taper connection implants were divided into 4 groups: no treatment (G1), blasting (G2), bonding (G3), and blasting + bonding (G4). In groups G2 and G4, the abutments were blasted with aluminum oxide granules; in groups G3 and G4, the conical abutment region was covered with a thin layer of bond thread lock agent...
August 8, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28767464/role-of-osteogenic-coatings-on-implant-surfaces-in-promoting-bone-to-implant-contact-in-experimental-osteoporosis-a-systematic-review-and-meta-analysis
#2
Alexis Ghanem, Sergio Varela Kellesarian, Tariq Abduljabbar, Nawwaf Al-Hamoudi, Fahim Vohra, Fawad Javed
OBJECTIVE: The aim of this systematic review and meta-analysis was to evaluate the role of osteogenic coatings (placement of a thin film of organic and inorganic osteoinductive and osteoproliferative materials) on implant surfaces in augmenting bone-to-implant contact (BIC) in osteoporotic bone. DATA SOURCES: To answer the focused question "Do osteogenic coatings on implant surfaces increase BIC in osteoporotic bone?" PubMed/MEDLINE, EMBASE, ISI Web of Knowledge, Scopus, and Google-Scholar databases were searched till June 2017 using different combinations of the following key words: bone-to-implant contact, coating, implant surface, osseointegration, and osteoporosis...
July 31, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28753196/prognostic-classification-system-for-implant-recession-defects
#3
Ann M Decker, Fernando Suárez-López Del Amo, Istvan A Urban, Preston D Miller, Hom-Lay Wang
PURPOSE: The etiology and progression of periimplant mucogingival defects are multifactorial. As such, the aim of this study was to discern and discuss the key long-term prognostic factors that change the balance of homeostasis/regeneration in periimplant mucogingival and recession defects. MATERIALS AND METHODS: This report provides cases and a discussion of anatomical factors that affect the long-term maintenance of periimplant soft tissue. RESULTS: The factors guiding long-term maintenance of the periimplant soft tissue apparatus are increasingly complex due to the additive combination of patient-related factors, anatomical variations, and unique material-host interactions...
July 20, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28753195/freehand-versus-guided-surgery-factors-influencing-accuracy-of-dental-implant-placement
#4
William Choi, Bao-Chau Nguyen, Andrew Doan, Sabine Girod, Brice Gaudilliere, Dyani Gaudilliere
INTRODUCTION: Patient anatomy, practitioner experience, and surgical approach are all factors that influence implant accuracy. However, the relative importance of each factor is poorly understood. The present study aimed to identify which factors most critically determine implant accuracy to aid the practitioner in case selection for guided versus freehand surgery. METHODS: One practitioner's ideal implant angulation and position was compared with his achieved position radiographically for 450 implants placed using a conventional freehand method...
July 20, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28719570/immediate-versus-delayed-loading-of-postextraction-implants-a-long-term-retrospective-cohort-study
#5
Tiziano Testori, Silvio Taschieri, Fabio Scutellà, Massimo Del Fabbro
PURPOSE: To compare the long-term clinical and radiographic outcomes between immediate loading (IL) and conventional loading of implants placed immediately in fresh extraction sockets. MATERIALS AND METHODS: Demographic data, implant details, and periapical radiographs of patients were collected. The long-term marginal bone level remodeling and implant survival rate were calculated. RESULTS: Twenty-one patients (mean age 52.55 ± 14.61 years) with 35 implants immediately inserted into postextraction sites (22 immediate loaded and 13 delayed loaded) were analyzed...
July 17, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28719569/stress-analysis-of-zygomatic-implants-on-the-augmented-maxillary-sinus-is-it-necessary-to-graft
#6
Süleyman Kaman, Fethi Atıl, Umut Tekin, Ozkan Ozgul, Mustafa Ercument Önder, Seda Yılmaz, Hamiyet Gungor, Ismail Doruk Kocyigit
PURPOSE: Zygomatic implants are becoming an ideal therapy with advanced implant-supported prosthetic treatment for the posterior atrophic maxilla. The purpose of this study is to examine the quantity and distribution of stress, which was caused by zygomatic implants placed using intrasinus method with or without augmentation to the atrophic posterior maxilla. MATERIALS & METHODS: In this study, 3-dimensional atrophic edentulous maxilla models with and without sinus augmentation are designed with computer-aided programs...
July 17, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28719568/effect-of-serial-use-of-bone-morphogenetic-protein-2-and-fibroblast-growth-factor-2-on-periodontal-tissue-regeneration
#7
Ah-Reum Lee, Hyunmin Choi, Jee-Hwan Kim, Sung-Won Cho, Young-Bum Park
PURPOSE: This study evaluates the synergistic effect of serial application of bone morphogenetic protein 2 (BMP2) and fibroblast growth factor 2 (FGF2) on both new bone formation and periodontal tissue regeneration using 1-wall intrabony defect in mongrel dogs. MATERIALS AND METHODS: One-wall defects were created at the mesial aspect of the mandibular first molars of 6 male mongrel dogs. Each mandibular defect received 1 of the 2 experimental treatments randomly (BMP2 or BMP2 + FGF2), and it was allowed to heal for either 4 or 8 weeks postoperatively...
July 17, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28696960/sinus-floor-augmentation-with-ambient-blood-and-an-absorbable-collagen-sponge-a-prospective-pilot-clinical-study
#8
Antoine Berberi, Nabih Nader, Rita Bou Assaf, Hussein Fayyad-Kazan, Saad Khairalah, Nabil Moukarzel
PURPOSE: The aim of this study was to clinically, radiologically, and histologically evaluate a sinus augmentation technique using a resorbable collagen sponge to maintain space between the Schneiderian membrane and the residual crestal bone. MATERIALS AND METHODS: Patients with partially edentulous maxillae were clinically and radiographically evaluated for implant placement. A total of 10 consecutive patients with the bone height for implant placement (<4.0 mm) were enrolled in the study...
July 10, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28570289/hydraulic-transcrestal-sinus-lift-different-patterns-of-elevation-in-pig-sinuses
#9
Yong-Seok Cho, David Chong, Seung-Min Yang, Brandon Kang
PURPOSE: The aim of this study was to evaluate different patterns of sinus membrane elevation in pig jaws. MATERIALS AND METHODS: A total of 30 pig jaws (60 sinuses) were used for the present investigation. The hydraulic Crestal Approach Sinus kit was used to elevate sinus membrane, and different elevation patterns were recorded. RESULTS: There were 4 different scenarios of membrane separation patterns: center dome-shaped elevation, off-center dome-shaped elevation, horizontally spreading membrane elevation, and perforation...
May 30, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28542042/comparison-between-cortical-drill-and-cortical-tap-and-their-influence-on-primary-stability-of-macro-thread-tapered-implant-in-thin-crestal-cortical-bone-and-low-density-bone
#10
Dasom Heo, Young-Ku Heo, Jong-Ho Lee, Jun-Jae Lee, Bongju Kim
OBJECTIVE: To evaluate the effect of different surgical techniques on primary stability, particularly in poor-quality bone with or without a crestal cortical bone. MATERIALS AND METHODS: Three implant site preparation techniques-undersized drilling (UD), undersized drilling and coronal widening with a cortical drill (UD + CD), undersized drilling and coronal tapping with a cortical tap (UD + CT)-were compared in 2 different low-density polyurethane bone models either with or without the crestal cortical bone...
May 23, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28731897/marginal-bone-loss-around-early-loaded-sla-and-slactive-implants-radiological-follow-up-evaluation-up-to-6-5-years
#11
Işil Damla Şener-Yamaner, Gökhan Yamaner, Atilla Sertgöz, Cenk Fatih Çanakçi, Mutlu Özcan
PURPOSE: The aim of this study was to compare marginal bone loss around early-loaded SLA and SLActive tissue-level implants (Straumann Dental Implants; Institut Straumann AG, Basel, Switzerland) after a mean of 81-month follow-up period. MATERIAL AND METHODS: One hundred seven SLA and 68 SLActive implants were placed in 55 patients and loaded with final restoration after 8 and 3 weeks of healing time, respectively. Marginal bone loss around implants was determined radiographically at initial and after a mean observation time ranging between 20 and 81 months...
August 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28731896/freehand-versus-guided-surgery-factors-influencing-accuracy-of-dental-implant-placement
#12
William Choi, Bao-Chau Nguyen, Andrew Doan, Sabine Girod, Brice Gaudilliere, Dyani Gaudilliere
INTRODUCTION: Patient anatomy, practitioner experience, and surgical approach are all factors that influence implant accuracy. However, the relative importance of each factor is poorly understood. The present study aimed to identify which factors most critically determine implant accuracy to aid the practitioner in case selection for guided versus freehand surgery. METHODS: One practitioner's ideal implant angulation and position was compared with his achieved position radiographically for 450 implants placed using a conventional freehand method...
August 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28731895/our-senior-editorial-reviewers-a-centerpiece
#13
(no author information available yet)
No abstract text is available yet for this article.
August 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28731894/ralph-v-mckinney-jr-award-in-basic-and-clinical-research-for-2017
#14
(no author information available yet)
No abstract text is available yet for this article.
August 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28727618/clinical-study-of-bone-regeneration-by-conditioned-medium-from-mesenchymal-stem-cells-after-maxillary-sinus-floor-elevation
#15
Wataru Katagiri, Junna Watanabe, Naoto Toyama, Masashi Osugi, Kohei Sakaguchi, Hideharu Hibi
OBJECTIVE: This clinical study was undertaken to evaluate the safety of use of the secretome of bone marrow-derived mesenchymal stem cells (MSC-CM) for maxillary sinus floor elevation (SFE). MATERIALS AND METHODS: MSC-CM was prepared from conditioned medium from human bone marrow-derived MSCs. Six partially edentulous patients were enrolled in the study. MSC-CM was mixed with porous beta-tricalcium phosphate (β-TCP) and implanted in 4 patients (experimental group), whereas only β-TCP was implanted in the other 2 patients (control group)...
August 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28719571/mir-27b-3p-suppressed-osteogenic-differentiation-of-maxillary-sinus-membrane-stem-cells-by-targeting-sp7
#16
Wei Peng, Shuangxi Zhu, Xiang Li, Junquan Weng, Songling Chen
OBJECTIVE: To explore the critical role and function of miRNAs in the regulation of development and physiology of maxillary sinus membrane stem cell (MSMSC) osteogenesis. METHODS: Microarray analysis was performed to screen the miRNAs expression profiles during the process of MSMSC osteogenic differentiation. Quantitative real-time polymerase chain reaction was applied to verify the miRNAs expression profiles. Gain- and loss-of-function experiments were used to demonstrate that miR-27b-3p inhibited MSMSC osteoblastic differentiation...
August 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28692444/effect-of-restorative-configurations-and-occlusal-schemes-on-strain-levels-in-bone-surrounding-implants
#17
Jonathan Block, Shlomo Matalon, Gabriela Tanase, Zeev Ormianer
AIM: This study investigated strain levels during and after implant insertion, and during and after simulated mastication, in splinted and nonsplinted restorations with different occlusal schemes. MATERIALS AND METHODS: Fresh bovine bone resembling type I jawbone was collected. Strain gauges were placed at each implant's neck, one horizontally and one vertically. Strains at and after implant insertion were recorded. The restoration was loaded with cyclic load simulating mastication...
August 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28657985/an-exemplary-review
#18
Morton L Perel
No abstract text is available yet for this article.
August 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28639985/implant-site-related-and-patient-based-factors-with-the-potential-to-impact-patients-satisfaction-quality-of-life-measures-and-perceptions-toward-dental-implant-treatment
#19
Ali Orkun Topçu, Nermin Yamalik, Güliz N Güncü, Tolga F Tözüm, Hakan El, Serdar Uysal, Nur Hersek
OBJECTIVES: The present study aimed at evaluating both the implant site-related and patient-based factors with the potential to affect the extent of patients' satisfaction and also their perceptions regarding dental implant treatment. Potential differences between the esthetic evaluations of dental patients and dental specialists were also considered. MATERIALS AND METHODS: Implant-supported fixed prosthesis (n = 164) in 264 anterior esthetic implant sites were included...
August 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28639984/impact-of-implant-surface-micropatterns-on-epithelial-cell-behavior
#20
Yiping Tong, Zhengyu Yang, Ruoxi Du, Siqian Wang, Qiaozhen Zhou, Chongyun Bao, Jianfeng Ma
PURPOSE: This study investigated the effect of topography on cell behavior by screening polydimethylsiloxane (PDMS) molds with different nanoscale micropatterns to determine the ideal surface characteristics for attachment of human epithelial cells. MATERIALS AND METHODS: A soft PDMS mold with regular dot arrays was fabricated based on an aluminum oxide template with ordered nanotube arrays and used as a substrate for cell culture. Cell proliferation, spread, and morphology, as well as features of the extracellular matrix and the actin cytoskeleton were assessed...
August 2017: Implant Dentistry
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