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Clinical Oral Implants Research

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https://www.readbyqxmd.com/read/29148597/three-dimensional-analysis-of-bone-remodeling-following-ridge-augmentation-of-compromised-extraction-sockets-in-periodontitis-patients-a-randomized-controlled-study
#1
Mario Aimetti, Valeria Manavella, Lisa Corano, Elena Ercoli, Cristina Bignardi, Federica Romano
OBJECTIVES: The aim of this study was to analyze linear and volumetric hard tissue changes in severely resorbed alveolar sockets after ridge augmentation procedure and to compare them with spontaneous healing using three-dimensional cone beam computed tomography (CBCT). MATERIAL AND METHODS: Thirty patients (mean age 53.2 ± 6.3 years) requiring tooth extraction for advanced periodontitis were randomly allocated to test and control groups. The test sites were grafted using a collagenated bovine-derived bone (DBBM-C) covered with a collagen membrane, while control sites had spontaneous healing...
November 17, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29090511/fracture-behavior-marginal-gap-width-and-marginal-quality-of-vented-or-pre-cemented-cad-cam-all-ceramic-crowns-luted-on-y-tzp-implants
#2
Lucia K Zaugg, Simon Meyer, Nadja Rohr, Isabella Zehnder, Nicola U Zitzmann
OBJECTIVES: To investigate the fracture behavior and marginal gap region of CAD/CAM fabricated lithium disilicate (L) and zirconium dioxide (Z) crowns using palatal venting (PV), pre-cementation with custom analogs (CA), or conventional cementation technique (SP) with adhesive cement (A) or resin-modified glass ionomer cement (B). MATERIAL AND METHODS: Twelve groups (n = 6) were set according to material (L, Z), cement (A, B), and technique (PV, CA, SP). Specimens were thermo-mechanical aged (TML), loaded until fracture (LF) and fracture patterns recorded...
October 31, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29080268/histomorphometric-analyses-of-area-fraction-of-different-ratios-of-bio-oss-%C3%A2-and-bone-prior-to-grafting-procedures-an-in-vitro-study-to-demonstrate-a-baseline
#3
Hanna Aludden, Anna Dahlin, Thomas Starch-Jensen, Christer Dahlin, Arne Mordenfeld
OBJECTIVE: The objective of this study was to estimate the area fraction of different ratios of Bio-Oss(®) and bone, prior to grafting in an in vitro model to demonstrate a histomorphometric baseline. METHODS: Bio-Oss(®) particles were mixed with autogenous bone from pig jaw in three different ratios (50:50, 80:20 and 100:0) and packed in rice paper in a standardized procedure. Histomorphometric analyses were performed in 25 specimens and 74 regions of interest...
October 27, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29072346/effects-of-modified-abutment-characteristics-on-peri-implant-soft-tissue-health-a-systematic-review-and-meta-analysis
#4
REVIEW
Ignacio Sanz-Martín, Ignacio Sanz-Sánchez, Ana Carrillo de Albornoz, Elena Figuero, Mariano Sanz
OBJECTIVES: The purpose of this systematic review was to evaluate the impact of the abutment characteristics on peri-implant tissue health and to identify the most suitable material and surface characteristics. METHODS: A protocol was developed aimed to answer the following focused question: "Which is the effect of the modification of the abutment design in regard to the maintenance of the peri-implant soft tissue health?" Further subanalysis aimed to investigate the impact of the abutment material, macroscopic design, surface topography and surface manipulation...
October 26, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29071736/histopathological-comparison-of-healing-after-maxillary-sinus-augmentation-using-xenograft-mixed-with-autogenous-bone-versus-allograft-mixed-with-autogenous-bone
#5
Pablo Galindo-Moreno, Juan G de Buitrago, Miguel Padial-Molina, Juan Emilio Fernández-Barbero, Javier Ata-Ali, Francisco O Valle
OBJECTIVE: To compare the clinical and histologic outcomes of two different grafting materials (allograft and xenograft) when combined with autogenous bone and covered with a collagen membrane for sinus augmentation. MATERIAL AND METHODS: A parallel case series of fourteen patients in need of a unilateral sinus augmentation was evaluated in this study. Seven patients received a graft composed by autologous cortical bone (ACB) and anorganic bovine bone in a ratio of 1:1; the other seven patients received ACB mixed with an allograft in the same ratio...
October 26, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29044723/the-effects-of-crown-venting-or-pre-cementing-of-cad-cam-constructed-all-ceramic-crowns-luted-on-ytz-implants-on-marginal-cement-excess
#6
Lucia K Zaugg, Isabella Zehnder, Nadja Rohr, Jens Fischer, Nicola U Zitzmann
OBJECTIVES: The purpose of this study was to analyze the cement excess produced when cementing CAD/CAM-fabricated lithium disilicate (L) or zirconium dioxide (Z) crowns using adhesive cement (A) or resin-modified glass ionomer cement (B). Three different cementation techniques were applied: palatal venting (PV), pre-cementation with custom analogs (CA), and conventional standard procedure (SP). MATERIALS AND METHODS: Seventy-two crowns (36 each material) were assigned to 12 experimental groups depending on the restoration material (L, Z), type of cement (A, B), and cementation technique (PV, CA, SP)...
October 17, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29034567/timeframe-of-socket-cortication-after-tooth-extraction-a-retrospective-radiographic-study
#7
Kristina Bertl, Edmund Benjamin Kukla, Rajaa Albugami, Florian Beck, André Gahleitner, Andreas Stavropoulos
OBJECTIVES: To assess the timeframe between tooth extraction and radiographically detectable socket cortication in humans. METHODS: Two hundred and fifty patients with a CT scan ≤36 months after tooth extraction were included. First, three orthoradial multiplanar reconstruction slices, representing the major part of the extraction socket, were scored regarding the degree of bone healing as (i) healed, that is, complete/continuous cortication of the socket entrance, or (ii) non-healed...
October 15, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28994192/narrow-and-regular-diameter-implants-in-the-posterior-region-of-the-jaws-to-support-single-crowns-a-3-year-split-mouth-randomized-clinical-trial
#8
André Barbisan de Souza, Flávia Sukekava, Livia Tolentino, João Batista César-Neto, João Garcez-Filho, Mauricio G Araújo
OBJECTIVES: The objective of this 3-year split-mouth randomized controlled clinical study was to compare narrow-diameter implants (NDIs) to regular-diameter implants (RDIs) in the posterior region of the jaws (premolars and molars) in regards to (i) the marginal bone level (MBL) and (ii) implant and prosthesis survival and success rates. MATERIAL AND METHODS: A total of 22 patients were included in the study. Each patient received at least one implant of each diameter (Ø3...
October 9, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28971532/new-bone-formation-and-trabecular-bone-microarchitecture-of-highly-porous-tantalum-compared-to-titanium-implant-threads-a-pilot-canine-study
#9
Jin Whan Lee, Hai Bo Wen, Prabhu Gubbi, Georgios E Romanos
AIM: This study evaluated new bone formation activities and trabecular bone microarchitecture within the highly porous region of Trabecular Metal™ Dental Implants (TM) and between the threads of Tapered Screw-Vent® Dental Implants (TSV) in fresh canine extraction sockets. MATERIALS AND METHODS: Eight partially edentulated dogs received four implants (4.1 mmD × 13 mmL) bilaterally in mandibular fresh extraction sockets (32 TM, 32 TSV implants), and allowed to heal for 2, 4, 8, and 12 weeks...
October 2, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28940708/clinical-and-patient-reported-outcomes-of-zirconia-based-implant-fixed-dental-prostheses-results-of-a-prospective-case-series-5%C3%A2-years-after-implant-placement
#10
Benedikt Christopher Spies, Siegbert Witkowski, Kirstin Vach, Ralf-Joachim Kohal
OBJECTIVE: To evaluate the clinical and patient-reported outcome of all-ceramic zirconia implant supported fixed dental prostheses (FDPs) 5 years after implant installation. MATERIALS AND METHODS: Thirteen patients were treated with two terminally placed one-piece zirconia implants for a three-unit FDP each. The FDPs consisted of a CAD/CAM-fabricated zirconia framework over-pressed with a fluor-apatite veneering ceramic and were adhesively cemented. Survival and success were assessed by applying modified US Public Health Service (USPHS) criteria and preparation of Kaplan-Meier (KM) plots...
September 21, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28845539/long-term-outcomes-of-narrow-diameter-implants-in-posterior-jaws-a-retrospective-study-with-at-least-8-year-follow-up
#11
Jun-Yu Shi, Feng-Yuan Xu, Long-Fei Zhuang, Ying-Xin Gu, Shi-Chong Qiao, Hong-Chang Lai
OBJECTIVE: The aim of this study was to evaluate the long-term survival, complications, peri-implant conditions, marginal bone loss, and patient satisfaction of fixed dental prostheses supported by narrow diameter implants (NDIs) in the posterior jaws. MATERIALS AND METHODS: This study was designed as a retrospective cohort study with a mean follow-up time of 10.1 years (SD: 2.5 years). Patients receiving NDIs in posterior jaw were reviewed. Implant survival, hardware complication, modified plaque index (mPI), peri-implant probing depth (PPD), percentage of bleeding on probing (BOP%), marginal bone loss (MBL), and patient satisfaction were evaluated...
August 28, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27766693/implant-survival-following-sinus-membrane-elevation-without-grafting-and-immediate-implant-installation-with-a-one-stage-technique-an-up-to-40-month-evaluation
#12
Sebastian Stefanski, Börje Svensson, Andreas Thor
PURPOSE: Various augmentation procedures involving the maxillary sinus, using bone substitutes or bone, have been used to enhance bone support for dental implants. The aim of this study was to retrospectively evaluate the status of implants in patients who had undergone a maxillary sinus lift and immediate implant placement without the addition of graft material. MATERIALS AND METHODS: Nineteen patients who had required bone augmentation of their maxillary sinus floor were evaluated in this study...
November 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27743398/survival-of-dental-implants-placed-in-sites-of-previously-failed-implants
#13
Bruno R Chrcanovic, Jenö Kisch, Tomas Albrektsson, Ann Wennerberg
OBJECTIVES: To assess the survival of dental implants placed in sites of previously failed implants and to explore the possible factors that might affect the outcome of this reimplantation procedure. MATERIALS AND METHODS: Patients that had failed dental implants, which were replaced with the same implant type at the same site, were included. Descriptive statistics were used to describe the patients and implants; survival analysis was also performed. The effect of systemic, environmental, and local factors on the survival of the reoperated implants was evaluated...
November 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27743396/soft-tissue-changes-and-crestal-bone-loss-around-platform-switched-implants-placed-at-crestal-and-subcrestal-levels-36-month-results-from-a-prospective-split-mouth-clinical-trial
#14
Mohammad D Al Amri, Sulieman S Al-Johany, Abdulaziz M Al Baker, Mohammad Q Al Rifaiy, Tariq S Abduljabbar, Abdulaziz A Al-Kheraif
OBJECTIVE: The aim of the present 36-month prospective split-mouth clinical trial was to investigate the peri-implant soft tissue changes and crestal bone loss (CBL) around delayed loaded platform-switched implants placed at crestal and subcrestal levels. MATERIAL AND METHODS: Twenty-three individuals with bilaterally missing either mandibular first or second molars were included. The test and control sites were defined as follows: (i) test sites: implants placed 2 mm below the alveolar crest (subcrestal); (ii) control sites: implants placed at bone level (crestal)...
November 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27726186/localized-bone-regeneration-around-dental-implants-using-recombinant-bone-morphogenetic-protein-2-and-platelet-derived-growth-factor-bb-in-the-canine
#15
Daniel S Thoma, Jae-Kook Cha, Vitor M Sapata, Ronald E Jung, Juerg Hüsler, Ui-Won Jung
OBJECTIVES: To test whether or not one of two biological mediators (recombinant human bone morphogenetic protein-2 (rhBMP-2) and recombinant human platelet-derived growth factor (rhPDGF-BB)) is superior to the other and compared with control groups for bone regeneration around implants based on histomorphometrical outcome measures. MATERIALS AND METHODS: Box-type defects (10 × 5 × 5 mm) were prepared on the buccal sides of the left and right edentulous ridge in ten mongrel dogs...
November 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27683194/comparison-of-early-osseointegration-of-sla-%C3%A2-and-slactive-%C3%A2-implants-in-maxillary-sinus-augmentation-a-pilot-study
#16
Jamil Alayan, Cedryck Vaquette, Siamak Saifzadeh, Dietmar Hutmacher, Saso Ivanovski
OBJECTIVE: To assess the impact of a hydrophilic implant surface (SLActive(®) ) placed into augmented maxillary sinuses on bone-to-implant contact (BIC) and surrounding tissue composition when compared to a hydrophobic surface (SLA(®) ). MATERIAL AND METHODS: Four sheep underwent bilateral sinus augmentation. Each sinus received anorganic bovine bone mineral + autogenous bone (ABBM + AB). Sixteen implants were subsequently placed 12 weeks postgrafting with each sinus receiving a control (SLA(®) ) and test implant (SLActive(®) )...
November 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28994208/the-fine-print-behind-the-big-picture
#17
EDITORIAL
Lisa J A Heitz-Mayfield
No abstract text is available yet for this article.
October 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27647536/excess-cement-and-the-risk-of-peri-implant-disease-a-systematic-review
#18
REVIEW
Noémie Staubli, Clemens Walter, Julia C Schmidt, Roland Weiger, Nicola U Zitzmann
OBJECTIVE: The aim of this systematic review was to assess the role of excess cement as risk indicator for peri-implant diseases. MATERIAL AND METHODS: A systematic literature search with the keywords peri-implant disease, peri-implant mucositis, peri-implantitis, excess cement, cemented, and screw-retained restorations was performed for articles published by June 2016 using MEDLINE and EMBASE electronic databases, complemented by hand searching. RESULTS: The included 26 publications referring to 21 study groups were published between 1999 and 2016 and comprised 945 subjects with 1010 cemented implant restorations in 10 prospective and eight retrospective studies and eight case reports/series with pronounced heterogeneity of the study designs...
October 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27596293/effects-of-low-frequency-ultrasound-treatment-of-titanium-surface-roughness-on-osteoblast-phenotype-and-maturation
#19
Janina Sedlaczek, Christoph H Lohmann, Ethan M Lotz, Sharon L Hyzy, Barbara D Boyan, Zvi Schwartz
OBJECTIVE: Low-frequency ultrasound is widely used in the treatment of chronically infected wounds. To investigate its feasibility as a method for in situ restoration of metal implant surfaces in cases of peri-implantitis, we evaluated how low-frequency ultrasound affected surface properties of and response of human osteoblast-like MG63 cells to titanium (Ti). MATERIAL AND METHODS: Three Ti surfaces [hydrophobic/smooth (pretreatment, PT); hydrophobic/rough (sandblasted/acid-etched, SLA); and hydrophilic/rough (SLA processed and stored hydrophilicity, mSLA)] were subjected to 25 kHz ultrasound for 10 min/cm(2) ...
October 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27580862/the-effect-of-experimental-osteoporosis-on-bone-regeneration-part-2-proteomics-results
#20
E Calciolari, N Mardas, X Dereka, A K Anagnostopoulos, G T Tsangaris, N Donos
OBJECTIVES: To identify and describe protein expression in a Wistar rat calvarial critical size defect (CSD) model following treatment with guided bone regeneration in healthy and osteoporotic conditions. MATERIAL AND METHODS: Thirty-six 10-month-old female Wistar rats were used. Half of them were ovariectomized (OVX) and fed with a low-calcium diet to induce an osteoporotic-like status. In each animal of both groups, two 5-mm calvarial CSDs were treated with deproteinized bovine bone mineral graft particles and a bilayer collagen membrane...
September 2017: Clinical Oral Implants Research
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