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Clinical Oral Implants Research

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https://www.readbyqxmd.com/read/28786494/maxillary-sinus-augmentation-with-leukocyte-and-platelet-rich-fibrin-and-deproteinized-bovine-bone-mineral-a-split-mouth-histological-and-histomorphometric-study
#1
Nejat Nizam, Gülnihal Eren, Aliye Akcalı, Nikolaos Donos
OBJECTIVES: To evaluate the effect of leukocyte and platelet-rich fibrin (L-PRF) in combination with deproteinized bovine bone mineral (DBBM) on bone regeneration in maxillary sinus augmentation. MATERIAL AND METHODS: Thirteen patients (nine males and four females, mean age ± SD; 49.92 ± 10.37) were enrolled to the study. 26 maxillary sinus augmentation procedures were randomly performed using DBBM and L-PRF mixture (test) or DBBM alone (control) in a split-mouth design...
August 8, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28736922/effect-of-implantoplasty-on-fracture-resistance-and-surface-roughness-of-standard-diameter-dental-implants
#2
Xavier Costa-Berenguer, Marta García-García, Alba Sánchez-Torres, Mariano Sanz-Alonso, Rui Figueiredo, Eduard Valmaseda-Castellón
OBJECTIVE: To assess the effect of implantoplasty on the fracture resistance, surface roughness, and macroscopic morphology of standard diameter (4.1 mm) external connection dental implants. MATERIALS AND METHODS: An in vitro study was conducted in 20 screw-shaped titanium dental implants with an external connection. In 10 implants, the threads and surface were removed and polished with high-speed burs (implantoplasty), while the remaining 10 implants were used as controls...
July 23, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28736870/alveolar-bone-resorption-after-primary-tooth-loss-has-a-negative-impact-on-straightforward-implant-installation-in-patients-with-agenesis-of-the-lower-second-premolar
#3
Kristina Bertl, Michael H Bertl, Patrick Heimel, Maria Burt, André Gahleitner, Andreas Stavropoulos, Christian Ulm
OBJECTIVES: To compare the alveolar bone dimensions in patients with lower second premolar (P2) agenesis prior to and after primary molar loss on CT scans, and assess the possibility for straightforward implant placement. METHODS: Alveolar bone dimensions were evaluated on 150 mandibular CT scans in three groups: (i) agenesis of P2, with the primary tooth in situ, and regularly erupted first premolar (P1) and molar (M1) (AW); (ii) agenesis of P2, without the primary tooth in situ for ≥3 m, but regularly erupted P1 and M1 (AWO); and (iii) P1, P2, and M1 regularly erupted (CTR)...
July 23, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28733984/implant-treatment-in-pharmacologically-immunosuppressed-liver-transplant-patients-a-prospective-controlled-study
#4
Víctor Paredes, Rosa María López-Pintor, Jesús Torres, Juan Carlos de Vicente, Mariano Sanz, Gonzalo Hernández
OBJECTIVES: The main objective of this prospective study was to evaluate the long-term outcome of implant therapy in liver transplant patients (LTP). The secondary goal was to assess several implant- and patient-dependent variables, such as peri-implantitis (PI), peri-implant mucositis (PIM), bone loss (BL), and immediate postoperative complications. MATERIAL AND METHODS: Two groups, including 16 pharmacologically immunosuppressed LTP and 16 matched controls, received 52 and 54 implants, respectively, between 1999 and 2008...
July 21, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28719032/the-effect-of-experimental-diabetes-and-glycaemic-control-on-guided-bone-regeneration-histology-and-gene-expression-analyses
#5
M Retzepi, E Calciolari, I Wall, M P Lewis, N Donos
OBJECTIVES: To investigate the effect of experimental diabetes and metabolic control on intramembranous bone healing following guided bone regeneration (GBR). MATERIAL AND METHODS: Ninety-three Wistar rats were allocated to three experimental groups, healthy (H), uncontrolled diabetes (D) and controlled diabetes (CD). Twenty one days following diabetes induction, a standardised 5-mm defect was created at the mid-portion of each parietal bone. In 75 animals (25H, 25D, 25CD), one defect was treated with an intracranial and extracranial membrane according to the GBR principle, and one defect was left empty (control); five animals per group were then randomly sacrificed at 3, 7, 15, 30 and 60 days and processed for decalcified histology...
July 18, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28710793/safety-and-performance-of-a-novel-collagenated-xenogeneic-bone-block-for-lateral-alveolar-crest-augmentation-for-staged-implant-placement
#6
Alberto Ortiz-Vigón, Iñaki Suarez, Sergio Martínez-Villa, Ignacio Sanz-Martín, Juan Bollain, Mariano Sanz
OBJECTIVES: To evaluate the performance and safety of placing a collagenated xenogeneic bone block (CXBB) graft for the lateral bone augmentation of the alveolar crest prior to implant placement. MATERIAL & METHODS: In patients with single or multiple tooth gaps and a severe horizontal collapse of the alveolar ridge, a ridge augmentation procedure was performed using CXBB fixated with osteosynthesis screws to the atrophic bone crest and complemented with deproteinized bovine bone mineral particles (DBBM) and a native bilayer collagen membrane (NBCM)...
July 14, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28664585/effect-of-fatigue-loading-on-the-fracture-strength-and-failure-mode-of-lithium-disilicate-and-zirconia-implant-abutments
#7
Adham Elsayed, Sebastian Wille, Majed Al-Akhali, Matthias Kern
OBJECTIVE: The aim of this study was to test five types of implant restorations using titanium, zirconia and lithium disilicate abutments after being subjected to long-term fatigue loading. MATERIALS AND METHODS: Forty single-tooth implant restorations were assembled on titanium implants (FairTwo; FairImplant). The restorations differed only in the type of abutment used and were divided into five groups [Ti: titanium; Zr: zirconia with no metal base; ZrT: zirconia with titanium base; LaT: lithium disilicate abutment with titanium base; and LcT: lithium disilicate hybrid-abutment-crown with titanium base]...
June 30, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28653343/guided-bone-regeneration-at-zirconia-and-titanium-dental-implants-a-pilot-histological-investigation
#8
Goran I Benic, Daniel S Thoma, Ignacio Sanz-Martin, Fernando Munoz, Christoph H F Hämmerle, Antonio Cantalapiedra, Jens Fischer, Ronald E Jung
AIM: To test whether guided bone regeneration (GBR) of peri-implant defects at zirconia (ZrO2 ) implants differs from GBR at titanium (Ti) implants regarding the bone integration of the implant and of the grafting material. MATERIALS AND METHODS: Maxillary premolars and molars were extracted in seven dogs. After 5 months, four semi-saddle bone defects were created in each maxilla. Implant placement and simultaneous GBR were performed using the following randomly assigned modalities: (1) ZrO2 implant + deproteinized bovine bone mineral (DBBM) granules + a collagen membrane (CM), (2) ZrO2 implant + DBBM with 10% collagen matrix + CM, (3) ZrO2 implant + DBBM block + CM, and (4) Ti implant + DBBM granules + CM...
June 26, 2017: Clinical Oral Implants Research
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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/27659183/performance-and-safety-of-collagenated-xenogeneic-bone-block-for-lateral-alveolar-ridge-augmentation-and-staged-implant-placement-a-monocenter-prospective-single-arm-clinical-study
#15
Frank Schwarz, Ilja Mihatovic, Shahram Ghanaati, Jürgen Becker
OBJECTIVES: To assess the clinical safety and performance of collagenated xenogeneic bone block (CXBB) for lateral alveolar ridge augmentation and two-stage implant placement. MATERIAL & METHODS: In ten patients exhibiting a single-tooth gap, the surgical procedure included the preparation of mucoperiosteal flaps, a rigid fixation of CXBB (Geistlich Bio-Graft(®) ) using an osteosynthesis screw, and contour augmentation. After 24 weeks of submerged healing, the primary endpoint was defined as the final ridge width sufficient to place an adequately dimensioned titanium implant at the respective sites...
August 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27458031/hard-and-soft-tissue-changes-following-alveolar-ridge-preservation-a-systematic-review
#16
REVIEW
Neil MacBeth, Anna Trullenque-Eriksson, Nikolaos Donos, Nikos Mardas
OBJECTIVE: Two focused questions were addressed within this systematic review. Q1) What is the effect of alveolar ridge preservation on linear and volumetric alveolar site dimensions, keratinised measurements, histological characteristics and patient-based outcomes when compared to unassisted socket healing. Q2) What is the size effect of these outcomes in three different types of intervention (guided bone regeneration, socket grafting and socket seal). MATERIALS AND METHODS: An electronic search (MEDLINE, EMBASE, Cochrane Central Register LILACS, Web of Science) and hand-search was conducted up to June 2015...
August 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27392811/decontamination-of-titanium-implants-using-physical-methods
#17
Ashwaq A Al-Hashedi, Marco Laurenti, Veronique Benhamou, Faleh Tamimi
OBJECTIVES: Current decontamination methods of titanium (Ti) implant present limited success in achieving predictable re-osseointegration. We hypothesized that even though these techniques could be useful in elimination of bacteria, they might be unsuccessful in removing organic contaminants and restoring the original surface composition. The aim of this study was to assess the effect of four decontamination methods on the surface chemistry and bacterial load of biofilm-contaminated implant surfaces in order to improve implant surface decontamination...
August 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27392532/the-relationship-between-facial-bone-wall-defects-and-dimensional-alterations-of-the-ridge-following-flapless-tooth-extraction-in-the-anterior%C3%A2-maxilla
#18
Stephen T Chen, Ivan Darby
PURPOSE: To evaluate the relationship between defects of the facial socket wall at extraction and dimensional changes 8 weeks later in maxillary central and lateral incisor sockets. MATERIALS AND METHODS: A total of 34 consecutive patients requiring single tooth implants in the anterior maxilla (27 central and 7 lateral incisors) were evaluated. Orofacial external ridge, bone dimensions and the location of the socket bone crest were measured at extraction and again 8...
August 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27378477/lateral-approach-for-sinus-floor-elevation-large-versus-small-bone-window-a-split-mouth-randomized-clinical-trial
#19
Nicola Baldini, Chiara D'Elia, Andrea Bianco, Cecilia Goracci, Massimo de Sanctis, Marco Ferrari
OBJECTIVES: To test whether a reduction of bone window dimension, in a split-mouth randomized study design, focused on lateral sinus floor elevations, can achieve better results than a wider window in terms of augmented bone height and a reduction of patient discomfort and surgical complications. MATERIALS AND METHODS: Of the sixteen subjects enrolled in the study, each underwent a bilateral sinus lift procedure based on two different access flaps to maxillary sinus...
August 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27357723/bone-stability-around-implants-in-elderly-patients-with-reduced-bone-mineral-density-a-prospective-study-on-mandibular-overdentures
#20
Luke Chow, Tak Wah Chow, John Chai, Nikos Mattheos
OBJECTIVE: The purpose of this prospective clinical study was to determine whether reduced bone mineral density (BMD) is correlated with a higher risk for dental implant therapy in an elderly patient population. MATERIAL AND METHODS: Seventy-nine patients recruited at the Prince Philip Dental Hospital were provided with 2-implant-supported mandibular overdentures. Skeletal BMD was recorded before the implant therapy. The World Health Organization Osteoporosis Diagnosis Classification (femoral neck score) was utilized to define the osteoporosis status of patients...
August 2017: Clinical Oral Implants Research
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