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International Journal of Oral & Maxillofacial Implants

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https://www.readbyqxmd.com/read/29355856/bone-graft-and-substitutes-associated-with-titanium-dome-for-vertical-bone-formation-in-osseointegrated-implants-histomorphometric-analysis-in-dogs
#1
Mario Vinicius Zendron, Matheus Völz Cardoso, Giovana Fuzeto Veronesi, Daniel Romeu Benchimol de Resende, Carla Andreotti Damante, Adriana Campos Passanezi Sant'ana, Sebastião Luis Aguiar Greghi, Mariana Schutzer Ragghianti Zangrando
PURPOSE: This animal study investigated vertical bone formation (VBF) around implants and used histomorphometric analysis to compare different bone-filling materials associated with a massive titanium dome as a tissue barrier. MATERIALS AND METHODS: Seven dogs were submitted to surgical procedures with extraoral access to the lower edge of the mandible, and four implants were semi-inserted in each animal. Each implant received one treatment: autogenous bone with clot (AB), control clot (C), synthetic graft (Biogran [BG]), or xenograft (Bio-Oss [BO])...
January 19, 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29355855/retentive-force-of-zirconia-implant-crowns-on-titanium-bases-following-different-surface-treatments
#2
Celin Arce, Nathaniel C Lawson, Perng-Ru Liu, Chee Paul Lin, Daniel A Givan
PURPOSE: Screw-retained zirconia implant crowns with an internal titanium base have favorable mechanical properties compared with single-piece zirconia implant crowns; however, the screw-retained implant crowns require adequate bonding between the zirconia crown and the titanium base. This study measured the retention between a titanium base and a full-contour zirconia implant crown following different surface treatments of their bonded surfaces. MATERIALS AND METHODS: Full-contour screw-retained zirconia implant crowns were fabricated to fit a titanium base...
January 19, 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29253039/the-research-of-dishevelled-2-in-dental-implant-osseointegration-of-hyperlipidemic-rats
#3
Xiaofei Dong, Zhifeng Wang, Hui Wang, Jing Lan
PURPOSE: To investigate the influence of dishevelled-2 (Dvl2) protein and the phosphorylation and ubiquitination of Dvl2 on dental implant osseointegration in hyperlipidemic rats. MATERIALS AND METHODS: Thirty-six Wistar rats were divided equally into two groups: an experimental group fed with a high-fat diet for 8 weeks and a control group fed with a normal diet for 8 weeks. Serum lipids were detected, and titanium implants were placed into bilateral proximal metaphysis of rats' femurs...
December 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29340355/human-histologic-evidence-of-new-bone-formation-and-osseointegration-between-root-dentin-unplanned-socket-shield-and-dental-implant-case-report
#4
Charles Schwimer, Gregory A Pette, Howard Gluckman, Maurice Salama, Jonathan Du Toit
The socket-shield technique described 7 years ago has since grown in its reporting in the literature as a valid method of ridge preservation at immediate implant placement. To date, large clinical cohorts with up-to-4-year follow-up have been reported. Additionally, evidence of tissue histology at the dental implant and socket-shield has been demonstrated in the animal model. However, human histologic evidence has not yet been available, and the clinician's uncertainty regarding the tissues that may form between the socket-shield and dental implant may remain unanswered until now...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29340354/implant-mandibular-overdentures-retained-by-immediately-loaded-implants-a-1-year-randomized-trial-comparing-patient-based-outcomes-between-mini-dental-implants-and-standard-sized-implants
#5
Kostas Zygogiannis, Irene Ha Aartman, Daniel Wismeijer
PURPOSE: The aim of this 1-year randomized trial was to determine the stability and the magnitude of the effect of converting patients' conventional mandibular dentures to implant overdentures (IODs) on their satisfaction and oral health-related quality of life (OHRQoL). The IODs were retained either with two immediately loaded interconnected standard-diameter implants or with four immediately loaded mini dental implants (MDIs). MATERIALS AND METHODS: Fifty completely edentulous subjects complaining about insufficient retention of their mandibular dentures were randomly assigned to two groups; 25 patients received IODs retained with four MDIs and 25 patients received IODs retained with two standard-sized tissue level (STL) interconnected implants...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29340353/clinical-performance-of-one-piece-screw-retained-implant-crowns-based-on-hand-veneered-cad-cam-zirconia-abutments-after-a-mean-follow-up-period-of-2-3-years
#6
Nicole Schnider, Fiona Alena Forrer, Urs Brägger, Stefan Paul Hicklin
PURPOSE: The aim of this study was to evaluate the clinical performance of one-piece, screw-retained implant crowns based on hand-veneered computer-aided design/computer-aided manufacture (CAD/CAM) zirconium dioxide abutments with a crossfit connection at least 1 year after insertion of the crown. MATERIALS AND METHODS: Consecutive patients who had received at least one Straumann bone level implant and one-piece, screw-retained implant crowns fabricated with CARES zirconium dioxide abutments were reexamined...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29340352/bone-healing-at-functionally-loaded-and-unloaded-screw-shaped-implants-supporting-single-crowns-a-histomorphometric-study-in-humans
#7
Daichi Yonezawa, Adriano Piattelli, Riccardo Favero, Mauro Ferri, Giovanna Iezzi, Daniele Botticelli
PURPOSE: To evaluate histologically and histomorphometrically the effect of a delayed load on healing at implants with a moderately rough surface. MATERIALS AND METHODS: Two solid titanium screw-shaped devices, 5 mm long and 3.5 mm in diameter, were inserted in the distal segments of the alveolar ridge of 16 volunteer patients in a nonsubmerged fashion. After 2 months, one implant was loaded, while the other was left unloaded. After 2 months, the two implants were collected from 10 patients using a sonic instrument, and ground sections were prepared from the biopsy specimens...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29340351/effect-of-low-level-laser-on-the-healing-of-bone-defects-filled-with-autogenous-bone-or-bioactive-glass-in-vivo-study
#8
Guilherme Santos Moreira, Patrick Henry Machado Alves, Luis Augusto Esper, Michyele Cristhiane Sbrana, Gisele da Silva Dalben, Karin Hermana Neppelenbroek, Ana Lúcia Pompéia Fraga de Almeida
PURPOSE: This study evaluated the effect of low-level laser therapy (LLLT) on the healing of bone defects filled with autogenous bone or bioactive glass. MATERIALS AND METHODS: A critical size defect with 5-mm diameter was created on the calvaria of 60 adult male rats divided into 6 groups (n = 10): group C (control), group LLLT (LLLT - GaAlAs, wavelength of 780 nm, power of 100 mW, energy density of 210 J/cm2 per point during 60 seconds/point, in five points, only once, after creation of the surgical defect), group AB (autogenous bone), group AB+LLLT (autogenous bone + LLLT), group BG (bioactive glass), group BG+LLLT (bioactive glass + LLLT)...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29340350/estimating-the-importance-of-significant-risk-factors-for-early-dental-implant-failure-a-monte-carlo-simulation
#9
Oğuz Buhara, Salahi Pehlivan
PURPOSE: The purpose of this study was to develop a probabilistic estimation of the strength of risk factors associated with early dental implant failure and rank them by importance. MATERIALS AND METHODS: A systematic literature search was performed on PubMed, Web of Knowledge, Scopus, Cochrane Central Register of Controlled Trials, and grey literature up to April 2017. A total of 368 records were identified. Following the removal of duplicate and irrelevant records, 56 were screened...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29340349/prevalence-of-dental-implants-and-evaluation-of-peri-implant-bone-levels-in-patients-presenting-to-a-dental-school-a-radiographic-cross-sectional-2-year-study
#10
Eylem Ayhan Alkan, Lian Ping Mau, John Schoolfield, Gary F Guest, David L Cochran
PURPOSE: To evaluate the number of patients with dental implants who present to a dental school clinic for screening and to report the prevalence of peri-implant bone level change detected on digital panoramic radiographs of those subjects. MATERIALS AND METHODS: Patient screening files for 9,422 patients over a 2-year period were examined to see how many patients presented with dental implants. Those patients with at least one implant were further evaluated by measuring the bone level on the mesial and distal sides of the implant using the screening radiograph...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29340348/peri-implant-tissues-and-patient-satisfaction-after-treatment-of-vertically-augmented-atrophic-posterior-mandibles-with-intraoral-onlay-block-bone-grafts-a-retrospective-3-year-case-series-follow-up-study
#11
Amparo Aloy-Prósper, David Peñarrocha-Oltra, Maria Peñarrocha-Diago, Federico Hernández-Alfaro, Miguel Peñarrocha-Diago
PURPOSE: To evaluate the peri-implant soft and hard tissues of dental implants placed in vertically regenerated posterior mandibles with intraoral onlay block bone grafts and patient satisfaction at 3-year follow-up. MATERIALS AND METHODS: A retrospective study of patients with dental implants placed in posterior mandibular sites vertically augmented with intraoral onlay block bone grafts was carried out between 2005 and 2009 at the University of Valencia. The outcomes assessed at the 3-year follow-up visit were the peri-implant soft tissues (Plaque Index and Bleeding Index, probing depth, keratinized mucosa width, and recession), implant survival and success rates, marginal bone loss, and patient satisfaction...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29340347/effect-of-attachment-type-on-denture-strain-in-maxillary-implant-overdentures-part-2-palateless-overdentures
#12
Toshihito Takahashi, Tomoya Gonda, Yoshinobu Maeda
PURPOSE: The aim of this study was to examine the deformation modality of palateless maxillary implant overdentures using isolated attachments under various implant configurations. MATERIALS AND METHODS: A maxillary edentulous model with implants inserted in the anterior, premolar, and molar areas was fabricated, and three types of unsplinted attachments-ball, locator, and magnet-were set on the implants distributed in various configurations. Experimental palateless dentures were fabricated, and two strain gauges were attached at the anterior midline of the labial and palatal sides...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29340346/effects-of-local-drug-and-chemical-compound-delivery-on-bone-regeneration-around-dental-implants-in-animal-models-a-systematic-review-and-meta-analysis
#13
Ali Alenezi, Bruno Chrcanovic, Ann Wennerberg
PURPOSE: One of the suggested methods for enhancing osseointegration is the local application of drug agents around implant surfaces. The aim of this review was to evaluate the methods most commonly used for local drug and chemical compound delivery to implant sites and assess their influence on osseointegration. MATERIALS AND METHODS: An electronic search was undertaken in three databases (PubMed, Scopus, Embase). The search was limited to animal experiments using endosseous implants combined with local drug delivery systems...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29340345/intraosseous-temperature-changes-during-implant-site-preparation-in-vitro-comparison-of-thermocouples-and-infrared-thermography
#14
Sönke Harder, Christopher Egert, Sandra Freitag-Wolf, Christian Mehl, Matthias Kern
PURPOSE: Implant-supported dental prostheses are based on the principle of osseointegration, and the success of dental implantation depends on adequate formation of this intimate bone-to-implant contact. The application of heat during the drilling procedure leads to a rise in intraosseous temperature at the prospective implant site, which may result in various complications. The purpose of the present study was to compare the ability of thermocouples and infrared thermography to detect changes in intraosseous temperature during dental implant site preparation...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29340344/biomechanical-comparison-of-different-implant-inclinations-and-cantilever-lengths-in-all-on-4-treatment-concept-by-three-dimensional-finite-element-analysis
#15
Oguz Ozan, Sevcan Kurtulmus-Yilmaz
PURPOSE: The aim of this study was to evaluate the effect of implant inclination and cantilever length on the stress distribution in mandibular cortical bone, implant, abutment, prosthetic framework, and prosthetic screw via three-dimensional (3D) finite element analysis (FEA). MATERIALS AND METHODS: Four different finite element models (0-0, 17-17, 30-30, 45-30) were designed according to the tilting angle (0, 17, 30, and 45 degrees) of the posterior implant and angle of multiunit abutments (0, 17, and 30 degrees)...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29340343/what-is-the-impact-of-epstein-barr-virus-in-peri-implant-infection
#16
Luigi Canullo, Paolo Pesce, Daniele Botticelli, Ugo Covani, Sasha Jankovic, Tanja Jovanovic, Mia Rakic
PURPOSE: To compare the qualitative and quantitative profile of Epstein-Barr virus (EBV) at external and internal implant surfaces between participants with peri-implantitis and healthy peri-implant tissues and to quantitatively assess the relation between EBV and periopathogens inside the microbiologic profile associated with peri-implantitis. MATERIALS AND METHODS: Microbiologic specimens were retrieved from 84 patients wearing 190 implants to estimate the levels of EBV and 10 periopathogens in the peri-implant pocket and internal-implant connection using quantitative polymerase chain reaction...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29340342/precision-of-the-connection-between-implant-and-standard-or-computer-aided-design-computer-aided-manufacturing-abutments-a-novel-evaluation-method
#17
Diego Lops, Roberto Meneghello, Luca Sbricoli, Gianpaolo Savio, Eriberto Bressan, Edoardo Stellini
PURPOSE: The aim of this in vitro study was to verify whether or not stock and computer-aided design/computer-aided manufacturing (CAD/CAM) abutments show similar precision in the connection with the respective implants. MATERIALS AND METHODS: Ten CAD/CAM titanium abutments were compared with 10 stock titanium abutments. Each abutment fit a regular-platform implant (Institute Straumann). Implants and abutments were measured independently and then connected. During the connection procedure, the torque was measured using a six-axes load cell...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29140389/influence-of-rhbmp-2-on-guided-bone-regeneration-for-placement-and-functional-loading-of-dental-implants-a-radiographic-and-histologic-study-in-dogs
#18
Heithem Ben Amara, Jung-Won Lee, Jung-Ju Kim, Yun-Mi Kang, Eun-Jung Kang, Ki-Tae Koo
PURPOSE: Evidence on the outcomes of functional loading placed in recombinant human bone morphogenetic protein 2 (rhBMP-2)/acellular collagen sponge (ACS)-induced bone is lacking. The aim of this study was to verify whether guided bone regeneration (GBR) with rhBMP-2/ACS enhances regeneration of missing bone and osseointegration of dental implants subject to functional loading. MATERIALS AND METHODS: Two bilateral standardized large saddle-type defects (≈10 × 10 × 6 mm) were surgically created in each mandible of seven beagle dogs 2 months after tooth extraction...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29140388/titanium-activates-the-dna-damage-response-pathway-in-oral-epithelial-cells-a-pilot-study
#19
Fernando Suárez-López Del Amo, Ivan Rudek, Vivian Petersen Wagner, Manoela D Martins, Francisco O'Valle, Pablo Galindo-Moreno, William V Giannobile, Hom-Lay Wang, Rogerio M Castilho
PURPOSE: To evaluate the effect of titanium (Ti) particles on oral epithelial cell homeostasis and the potential of dental implants to release Ti debris upon insertion. MATERIALS AND METHODS: Dental implants with varying surface treatments were employed to determine the feasibility of particle release during implant placement as well as the impact of free Ti debris on oral epithelial cells. Ti particles derived from implant surfaces were isolated and cultured in direct contact with normal oral epithelial cells for 48 hours...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29140387/full-mouth-rehabilitation-with-calvarium-bone-grafts-and-dental-implants-for-a-papillon-lef%C3%A3-vre-syndrome-patient-case-report
#20
Bassam M Kinaia, Kristyn Hope, Ahmed Zuhaili, Jean Francois Tulasne
Papillon-Lefèvre syndrome (PLS) is a rare autosomal recessive disorder of keratinization associated with palmoplantar keratoderma and severe periodontitis resulting in complete edentulism in late adolescence. The pathognomonic dental features of PLS are pathologic migration, hypermobility, and exfoliation of the teeth without any signs of root resorption. It has been suggested that an effective way to treat PLS patients presenting early in the disease progression is extraction of the erupted primary dentition or hopeless permanent teeth followed by antibiotic coverage with periodontal therapy for the remaining teeth...
November 2017: International Journal of Oral & Maxillofacial Implants
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