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Clinical Oral Implants Research

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https://www.readbyqxmd.com/read/28626970/surgical-treatment-of-peri-implantitis-intrabony-lesions-by-means-of-deproteinized-bovine-bone-mineral-with-10-collagen-7-year-results
#1
Mario Roccuzzo, Dario Pittoni, Andrea Roccuzzo, Lorena Charrier, Paola Dalmasso
OBJECTIVES: The aim of this study was to evaluate the long-term results of the surgical treatment of single peri-implantitis intrabony defects, by means of deproteinized bovine bone mineral with 10% collagen (DBBMC). MATERIAL AND METHODS: The original population consisted of 26 patients with one crater-like defect, around either sandblasted and acid-etched (SLA) or titanium plasma-sprayed (TPS) dental implants, with a probing depth (PD) ≥6 mm and no implant mobility (Roccuzzo et al...
June 18, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28626888/clinical-and-radiographic-evaluation-of-early-loaded-narrow-diameter-implants-5-year-follow-up-of-a-multicenter-prospective-clinical-study
#2
Pablo Galindo-Moreno, Peter Nilsson, Paul King, Nils Worsaae, Alexander Schramm, Miguel Padial-Molina, Carlo Maiorana
OBJECTIVE: This study was initiated to evaluate the 5-year implant survival rate and marginal bone levels around a 3.0-mm implant when replacing a single tooth in the anterior region. MATERIALS AND METHODS: The study was designed as a prospective, single-arm, multicenter clinical study. Patients missing 12, 22, 32, 31, 41 or 42 teeth were included, and implants of 3.0 mm diameter and different lengths were placed by a one-stage surgery protocol. Definitive cemented crowns were placed 6-10 weeks later...
June 18, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28626865/positional-changes-of-maxillary-central-incisors-following-orthodontic-treatment-using-single-crown-implants-as-fixed-reference-markers
#3
E B Brahem, B Holm, L Sonnesen, N Worsaae, K Gotfredsen
OBJECTIVES: This follow-up study (1) compares tooth displacement of central incisors in patients with and without pre-implant orthodontic treatment and (2) investigates whether sex, age, or orthodontic retention have an effect on tooth displacement after the insertion of single-crown implants. MATERIALS AND METHODS: Fifty-seven patients - thirty-seven with (test group) and twenty without pre-implant orthodontic treatment (control group) - were rehabilitated with 89 single-crown implants in the upper maxilla...
June 18, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28593727/influence-of-a-collagen-membrane-positioned-subjacent-the-sinus-mucosa-following-the-elevation-of-the-maxillary-sinus-a-histomorphometric-study-in-rabbits
#4
Takahisa Iida, Evandro Carneiro Martins Neto, Daniele Botticelli, Karol Alí Apaza Alccayhuaman, Niklaus P Lang, Samuel P Xavier
OBJECTIVE: To evaluate the healing after elevation of the sinus mucosa when a collagen membrane was placed between the sinus mucosa and a xenograft used as filler. MATERIALS AND METHODS: Eighteen rabbits were used. Sinus mucosa elevation was performed bilaterally, and a collagen membrane was applied subjacent to the sinus mucosa only at a randomly selected test site. At both sites, a collagenated corticocancellous porcine bone was placed within the elevated space and the access window was covered with a collagen membrane...
June 7, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28574217/primary-ridge-augmentation-with-collagenated-xenogenic-block-bone-substitute-in-combination-with-collagen-membrane-and-rhbmp-2-a-pilot-histological-investigation
#5
Goran I Benic, Myung-Jae Joo, So-Ra Yoon, Jae-Kook Cha, Ui-Won Jung
OBJECTIVE: The aim of this pilot study was to test whether a porcine collagenated bone substitute block (PCBB) and collagen membrane (CM) loaded with bone morphogenetic protein-2 (BMP-2) used for horizontal ridge augmentation differ from PCBB and CM without BMP-2 regarding the osseointegration of the grafting material and the maintenance of the ridge contour. MATERIAL AND METHODS: Two semi-saddle bone defects were created in each side of the mandible of six dogs...
June 2, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28556432/randomized-controlled-clinical-trial-comparing-one-piece-and-two-piece-dental-implants-supporting-fixed-and-removable-dental-prostheses-4-to-6-year-observations
#6
Felix B Gamper, Goran I Benic, Ignacio Sanz-Martin, Asgeir G Asgeirsson, Christoph H F Hämmerle, Daniel S Thoma
OBJECTIVES: To test whether or not a one- (S1) and a two-piece (S2) dental implant systems render the same biological, technical, and esthetic outcomes regarding implants and implant-supported reconstructions over an observation period of 4 to 6 years. MATERIALS AND METHODS: Sixty patients were randomly assigned to receive S1 or S2 implants. The implants were restored with either fixed or removable prostheses. The insertion of the final reconstruction was chosen as baseline...
May 29, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28543806/effect-of-microthreads-on-coronal-bone-healing-of-narrow-diameter-implants-with-reverse-tapered-design-in-beagle-dogs
#7
Yun-Young Chang, Su-Hwan Kim, Keun-Oh Park, Jeong-Ho Yun
OBJECTIVES: The objective of this study was to investigate the effect of microthreads on the coronal bone healing of narrow-diameter implants with reverse-tapered design. MATERIAL AND METHODS: A total of 52 implants were classified into two groups according to presence or absence of coronal microthreads, the reverse-tapered narrow-diameter implant (RTN) group, and the reverse-tapered narrow-diameter implant with microthreads (RTNM) group. The implants were installed in split-mouth design in the edentulous mandible of six dogs...
May 22, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28432698/quantitative-evaluation-of-metal-artifacts-using-different-cbct-devices-high-density-materials-and-field-of-views
#8
Marina Codari, Karla de Faria Vasconcelos, Laura Ferreira Pinheiro Nicolielo, Francisco Haiter Neto, Reinhilde Jacobs
OBJECTIVE: To objectively compare the influence of different cone-beam computed tomography (CBCT) devices, high-density materials and field of views (FOVs) on metal artifact expression. MATERIAL AND METHODS: For this in vitro study, three customized acrylic resin phantoms containing high-density materials cylinders: titanium, copper-aluminum alloy and amalgam were scanned on three CBCT devices using high-resolution protocols, same voxel size (0.2 mm) and different FOVs...
April 22, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28422326/alveolar-ridge-dimensional-changes-following-ridge-preservation-procedure-with-novel-devices-part-3-histological-analysis-in-non-human-primate-model
#9
Yingying Su, Jianxia Tang, Seiko Min, Lijia Guo, Yitong Liu, Yilin Xie, Jimin Xiong, Songlin Wang, Mauricio G Araújo, Homayoun H Zadeh, Yi Liu
OBJECTIVES: This study sought to investigate the histological changes following tooth extraction, ridge preservation and augmentation, using novel devices designed to obturate the oral orifice of extraction sockets (SocketKAP™) and provide structural support for sockets with defective bony walls (SocketKAGE™) in a non-human primate model. MATERIAL AND METHODS: Six Macaca fascicularis were imaged by cone beam computed tomography to register their preoperative alveolar bone...
April 19, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28407306/the-influence-of-the-emergence-profile-on-the-amount-of-undetected-cement-excess-after-delivery-of-cement-retained-implant-reconstructions
#10
M Sancho-Puchades, D Crameri, M Özcan, I Sailer, R E Jung, C H F Hämmerle, D S Thoma
OBJECTIVE: To test whether or not one of two emergence profile designs (concave or convex) is superior to the other in terms of remaining cement following cementation of reconstructions on individualized abutments and careful cement removal. MATERIALS AND METHODS: A central incisor with a single implant-supported reconstruction was selected as a model. Six types of abutments (n = 10) with two different emergence profile designs (concave (CC) and convex (CV)) and three crown-abutment margin depths (epimucosal, 1...
April 13, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28397298/micromorphological-differences-of-the-implant-abutment-junction-and-in%C3%A2-vitro-load-testing-for-three-different-titanium-abutments-on-straumann-tissue-level-implants
#11
N Mattheos, C Larsson, L Ma, G Fokas, V Chronopoulos, M Janda
BACKGROUND: The aim of this study was to investigate the micromorphological differences among three commercially available titanium abutments on Straumann implants. Furthermore, the possible impact of functional loading on the micromorphology and potential complications was investigated with the use of in vitro testing. MATERIAL AND METHODS: Three groups of Titanium abutments (A: Straumann Variobase n = 5, B: EBI best Duo n = 5, and C: Implant Direct n = 5) were torqued on Straumann RN implants, as according to each of the manufacturer's instructions...
April 11, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28391648/prevalence-of-proximal-contact-loss-between-implant-supported-fixed-prostheses-and-adjacent-natural-teeth-and-its-associated-factors-a-7-year-prospective-study
#12
Nan-Sim Pang, Chang-Sup Suh, Kee-Deog Kim, Wonse Park, Bock-Young Jung
OBJECTIVES: The aim was to analyze the prevalence rate of proximal contact loss (PCL) between implant-fixed prostheses (IFPs) and adjacent teeth and investigate the associated factors. MATERIAL AND METHODS: One hundred fifty participants were recruited for this prospective study from January 2009 to December 2014. Two hundred thirty-four IFPs supported by 384 implants for the posterior region were followed up until June 2016. The contact tightness had been recorded using aluminum strips of different thicknesses with a regular interval after delivery...
April 8, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28382633/healing-at-the-interface-between-recipient-sites-and-autologous-block-bone-grafts-affixed-by-either-position-or-lag-screw-methods-a-histomorphometric-study-in-rabbits
#13
Marco Caneva, Daniele Botticelli, Evandro Neto Carneiro Martins, Martina Caneva, Niklaus P Lang, Samuel P Xavier
OBJECTIVE: To compare the sequential healing at the interface gap occurring between autologous bone grafts and recipient sites using two types of fixation techniques. MATERIAL AND METHODS: Twenty-four adult male New Zealand white rabbits were used. Two bone grafts were collected from the calvaria and secured to the lateral aspect of the angle of mandible in each animal. Cortical perforations at the recipient sites were performed. However, no modifications were applied to the graft for its adaptation to the recipient site...
April 5, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28378530/guided-bone-regeneration-with-particulate-vs-block-xenogenic-bone-substitutes-a-pilot-cone-beam-computed-tomographic-investigation
#14
Goran I Benic, Daniel S Thoma, Ronald E Jung, Ignacio M Sanz, Silvan Unger, Antonio Cantalapiedra, Christoph H F Hämmerle
AIM: To test whether an equine bone substitute block used for guided bone regeneration (GBR) of peri-implant defects differs from bovine block or particulate bone substitutes regarding the hard and soft tissue contours of the augmented ridge. MATERIAL & METHODS: Two semi-saddle bone defects were prepared in each side of the mandible of eight dogs, and one titanium implant was inserted into every defect. The defects were randomly allocated to receive one of the following treatments: bone augmentation by GBR using (1) particulate deproteinized bovine bone mineral (DBBM) + a collagen membrane (CM), (2) block DBBM + CM, (3) equine bone substitute block + CM, and (4) empty controls...
April 4, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28370489/volumetric-changes-and-peri-implant-health-at-implant-sites-with-or-without-soft-tissue-grafting-in-the-esthetic-zone-a-retrospective-case-control-study-with-a-5-year-follow-up
#15
Stefan P Bienz, Ronald E Jung, Vitor M Sapata, Christoph H F Hämmerle, Jürg Hüsler, Daniel S Thoma
OBJECTIVES: To evaluate the volumetric changes and peri-implant health at implant sites with and without previous soft tissue grafting over a 5-year observation period. MATERIAL AND METHODS: In 18 partially edentulous patients, dental implants were placed in the esthetic zone (15-25) with simultaneous guided bone regeneration, followed by submerged healing. During the healing phase, eight patients (test) received a subepithelial connective tissue graft, whereas 10 patients (control) did not receive any soft tissue augmentation...
March 29, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28370406/6-mm-long-implants-loaded-with-fiber-reinforced-composite-resin-bonded-fixed-prostheses-frcrbfdps-a-5-year-prospective-study
#16
Fabio Rossi, Niklaus P Lang, Emanuele Ricci, Lorenzo Ferraioli, Claudio Marchetti, Daniele Botticelli
AIM: To evaluate the clinical and radiographic outcomes and the survival rates of fiber-reinforced composite resin-bonded fixed prostheses (FRCRBFDPs) placed in the posterior area supported by two short (6 mm) implants. MATERIALS AND METHODS: Twenty consecutive patients received 40 SLActive 6-mm-long implants with a diameter of 4.1 mm (n = 29) or 4.8 mm (n = 11). Insertion torques and RFA (Resonance Frequency Analysis) were measured at implant installation...
March 28, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28370361/randomized-clinical-trial-of-ridge-preservation-using-porcine-bone-cross-linked-collagen-vs-bovine-bone-non-cross-linked-collagen-cone-beam-computed-tomographic-analysis
#17
Hyun-Chang Lim, Ui-Won Jung, Hoon You, Jung-Seok Lee
PURPOSE: The aim of this study was to radiographically compare horizontal and vertical alterations of the alveolar ridge after ridge preservation using different combinations of biomaterials. MATERIALS AND METHODS: The patients were randomly assigned into two groups: (a) the test group, which received collagenated porcine bone plus cross-linked collagen membrane (n = 15), and (b) the control group, which received collagenated bovine bone plus non-cross-linked collagen membrane (n = 15)...
March 28, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28349601/guided-bone-regeneration-of-non-contained-mandibular-buccal-bone-defects-using-deproteinized-bovine-bone-mineral-and-a-collagen-membrane-an-experimental-in%C3%A2-vivo-investigation
#18
Mariano Sanz, Luca Ferrantino, Fabio Vignoletti, Massimo de Sanctis, Tord Berglundh
AIM: The aim of this pre-clinical in vivo study was to analyse different stages of wound healing after guided bone regeneration in non-contained mandibular buccal bone defects. MATERIALS AND METHODS: Eighteen female beagle dogs, between 1.5 and 2 years old, were used. Buccal bone defects were created in the mandible following extraction of the mesial roots of M1, P4, the distal root of P3 and booth roots of P2. Augmentation procedures of the healed defects were performed 3 months later using a bone replacement graft (T1), an absorbable collagen membrane (T2) or a combination of both procedures (T3)...
March 27, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27417919/three-dimensional-assessment-of-crestal-bone-levels-at-titanium-implants-with-different-abutment-microstructures-and-insertion-depths-using-micro-computed-tomography
#19
Kathrin Becker, Inka Klitzsch, Martin Stauber, Frank Schwarz
OBJECTIVES: To (i) assess the impact of insertion depth and abutment microstructure on the three-dimensional crestal bone-level changes at endosseous titanium implant using μCT and computerized image processing and (ii) to correlate the findings with previously reported histology. MATERIAL & METHODS: Titanium implants (conical abutment connection) were inserted in each hemimandible of n = 6 foxhounds with the implant shoulder (IS) located either in epicrestal (0 mm), supracrestal (+1 mm) or subcrestal (-1 mm) positions and randomly (split-mouth design) connected with machined or partially micro-grooved healing abutments...
June 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27335212/patient-related-outcome-measures-with-implant-therapy-after-5%C3%A2-years
#20
Valerie H S Tey, Rachel Phillips, Ken Tan
OBJECTIVE: To analyze patients' perception of implant therapy in partial edentulism, after 5 years with implant-supported reconstructions. MATERIAL AND METHODS: Patients who received dental implants at the National Dental Centre, Singapore 3-9 years earlier (mean: 5.2 years) were invited to participate in the study. Responders were examined clinically, and asked to answer a questionnaire with 13 statements. RESULTS: Of the 880 patients, 206 patients, with 329 implants, agreed to participate...
June 2017: Clinical Oral Implants Research
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