Abstract:
:In the present study, the influence of initial instability on the healing of titanium implants was studied in 9 lop-eared rabbits. Titanium implants (Brånemark System) were inserted in the tibiae, a location with cortical bone only, in such a way that they were either stable (control), rotation-mobile, or totally mobile. Implants were also inserted in the distal femoral condyles, representing an implantation bed with mainly cancellous bone, so they either showed no initial mobility (control) or were rotation-mobile. After 12 weeks of healing, the implants were retrieved, together with surrounding bone, fixed, dehydrated, and embedded in plastic resin. About 10 micron thick ground sections were prepared for light microscopic morphometry. The mineralized bone to titanium contact, and the amount of bone occupying the threads, were calculated, whereafter the outcome of the different locations were compared. All retrieved implants were clinically stable at the of the experiment. For the tibia sites, a statistically significant less bone to titanium contact, and a less amount of bone in the threads, were found for the totally mobile implants, as compared to the corresponding initially stable controls. Moreover, a statistically significant higher amount of bone was found in the threads of the rotation-mobile implants inserted in the femoral condyle as compared to their initially stable controls. The study indicated that initial rotation-mobility, independent if it occurs in cortical or trabecular bone, does not necessarily lead to an inferior integration of unloaded implants. However, initial total implant mobility within the cortical layer results in a statistically significant less amount of bone around the implants, as compared to stable controls.
journal_name
Clin Oral Implants Resjournal_title
Clinical oral implants researchauthors
Ivanoff CJ,Sennerby L,Lekholm Usubject
Has Abstractpub_date
1996-06-01 00:00:00pages
120-7issue
2eissn
0905-7161issn
1600-0501journal_volume
7pub_type
杂志文章abstract:AIM:The purpose of this in vitro study was to investigate the influence of degree of stiffness of implant-abutment connection of a Brånemark implant system on load- deflection ratios in three dimensions of the beam-end of a screw-retained stiff cantilever beam when subjected to vertically directed loads. MATERIAL AND ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2012.02563.x
更新日期:2013-11-01 00:00:00
abstract::Mandibular bone density, vertebral density and resorption of the edentulous ridge were correlated in a group of 17 partially edentulous subjects. Bone density was quantified by Quantitative Computerized Tomography; resorption was evaluated on panoramic radiographs. Mean bone density in dentate areas was significantly ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1034/j.1600-0501.1999.100503.x
更新日期:1999-10-01 00:00:00
abstract:OBJECTIVES:The aim of the present study was to evaluate and compare naturally occuring and ligature-induced peri-implantitis bone defects in humans and dogs. MATERIAL AND METHODS:Twenty-four partially and fully edentulous patients undergoing peri-implant bone augmentation procedures due to advanced peri-implant infect...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2006.01320.x
更新日期:2007-04-01 00:00:00
abstract:OBJECTIVE:To evaluate the influence of the configuration of the marginal aspect of implants placed immediately into extraction sockets on peri-implant hard tissue adaptation. MATERIAL AND METHODS:In 6 Labrador dogs, endodontic treatments of the mesial roots of 1 M1 were performed and the distal roots were removed. 2 P...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12262
更新日期:2014-10-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate a new design of the cervical portion of dental implant with the objective to increase the volume of peri-implant tissues in the crestal area. MATERIALS AND METHODS:Forty-eight tapered dental titanium implants with internal conical connection were implanted in healed alve...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12978
更新日期:2018-07-01 00:00:00
abstract:BACKGROUND:Cement-retained fixed implant-supported restorations involve the risk of excess cement, which can associate peri-implantitis. In connection with routine therapy using a methacrylate cement (Premier Implant Cement, Premier(®) Dental Products Company, Plymouth Meeting, PA, USA) to retain fixed implant-supporte...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12173
更新日期:2014-07-01 00:00:00
abstract:OBJECTIVES:Electrospun cotton wool-like nanocomposite (ECWN) is a novel synthetic bone substitute that incorporates amorphous calcium phosphate nanoparticles into a biodegradable synthetic copolymer poly(lactide-co-glycolide). The objectives of this study were to develop a tooth extraction socket model in sheep for bon...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12673
更新日期:2016-07-01 00:00:00
abstract:AIM:To spectrophotometrically and visually test whether the peri-implant mucosal color differs from the color of the natural gingiva. MATERIAL AND METHODS:Forty single implants in the incisor and premolar region of 40 patients were assessed 3-7 years after implant placement. The differences of the color components lig...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12781
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVE:Estimate changes in augmentation height and volume after lateral guided bone regeneration (GBR) augmentation with different ratios of deproteinized bovine bone mineral (DBBM) and particulate autogenous bone (PAB) and autogenous bone block (ABB), at different time points. MATERIAL AND METHODS:Twenty-four mini...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.13687
更新日期:2020-11-20 00:00:00
abstract:OBJECTIVES:To assess the relationship between smooth and roughened implant surfaces of straight and narrow configurations with respect to microdamage of the bone surface during placement of dental implants. MATERIALS AND METHODS:Straight and tapered, rough and smooth surface Nobel Biocare implants were placed into she...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2010.02024.x
更新日期:2011-06-01 00:00:00
abstract:PURPOSE:The purpose of this prospective study on humans were to evaluate (a) the clinical outcome of alveolar distraction osteogenesis for the correction of vertically deficient edentulous mandibular ridges, (b) the clinical outcome of dental implants placed in the distracted areas, and (c) the quality and quantity of ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2005.01247.x
更新日期:2006-08-01 00:00:00
abstract:OBJECTIVES:Published information regarding the use of rat jawbones for dental implant osseointegration research is limited and often inconsistent. This study assessed the suitability and feasibility of placing dental implants into the rat maxilla and to establish parameters to be used for dental implant research using ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12571
更新日期:2016-12-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to explore effects of implant macrodesign and diameter on initial intraosseous stability and interface mechanical properties of immediately placed implants. MATERIAL AND METHOD:Mandibular premolars of four fresh-frozen human cadavers were extracted. Ø 4.1/4.8 mm ITI TE, Ø 4.1 ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2004.01099.x
更新日期:2005-04-01 00:00:00
abstract:OBJECTIVES:To compare the effectiveness of free-handed (FH), pilot-drill guided (PG) and fully guided (FG) implant surgery by means of the apical global deviation (AGD) in relation to the additional financial cost and time spent. MATERIALS AND METHODS:Thirty-three partially edentulous patients in need of ≥2 implants i...
journal_title:Clinical oral implants research
pub_type: 杂志文章,随机对照试验
doi:10.1111/clr.13399
更新日期:2019-02-01 00:00:00
abstract:BACKGROUND/AIMS:Clinical probing of the soft tissues around oral implants has become a frequently used parameter for clinical monitoring. However, the healing of the disruption of the soft tissue seal as a result of probing has not yet been studied. The purpose of this study was to evaluate the healing events in the pe...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1034/j.1600-0501.2002.130601.x
更新日期:2002-12-01 00:00:00
abstract::The aim of this study is to evaluate a surgical protocol for vertical ridge augmentation in the maxilla and mandible using autogenous onlay bone graft associated with a titanium mesh. A group of 18 partially edentulous patients, presenting the need for vertical bone augmentation of at least 4 mm, were treated before i...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2004.00998.x
更新日期:2004-02-01 00:00:00
abstract::It has been documented that the long-term clinical outcome of the Brånemark system is very favourable. However, failures do occur before and after loading. This study examined the differences in marginal bone loss between standard and self-tapping fixtures and attempted to explain excessive marginal bone loss or loss ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1034/j.1600-0501.1992.030302.x
更新日期:1992-09-01 00:00:00
abstract:OBJECTIVES:In regenerative medicine, surface engineering of bioinert synthetic materials is often required in order to introduce bioactive species that can promote cell adhesion, proliferation, viability and enhanced ECM-secretion functions. The aim of this work is to study cell interaction with alumina-modified surfac...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2008.01642.x
更新日期:2009-03-01 00:00:00
abstract:OBJECTIVES:The aim of this prospective study was to evaluate the Nobel Direct and Nobel Perfect one-piece implants (OPIs) when used for immediate function. MATERIAL AND METHODS:Forty-eight patients were provided with 115 OPIs for loading with a provisional crown or a bridge within 24 h and followed for at least 12 mon...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2007.01346.x
更新日期:2007-08-01 00:00:00
abstract: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) ag...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.13033
更新日期:2018-02-01 00:00:00
abstract:OBJECTIVE:To evaluate the influence of the crown-to-implant ratio (C/I) ratio and different implant prosthetic treatment modalities on crestal bone loss around dental implants placed in the posterior region. MATERIAL AND METHODS:A total of 192 ITI dental implants were consecutively placed in premolars and molars of 83...
journal_title:Clinical oral implants research
pub_type: 临床试验,杂志文章
doi:10.1111/j.1600-0501.2006.01307.x
更新日期:2007-12-01 00:00:00
abstract:OBJECTIVES:To investigate: (1) the effect of the lateral window technique for maxillary sinus augmentation on sinus membrane thickness, and (2) to identify factors associated with the mean postoperative surgical space. MATERIAL AND METHODS:This retrospective cohort study included 37 sinuses corresponding to 37 consecu...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2012.02520.x
更新日期:2013-10-01 00:00:00
abstract:AIM:The purpose of this study was to systematically review the literature on the survival rates of palatal implants, Onplants((R)), miniplates and mini screws. MATERIAL AND METHODS:An electronic MEDLINE search supplemented by manual searching was conducted to identify randomized clinical trials, prospective and retros...
journal_title:Clinical oral implants research
pub_type: 杂志文章,评审
doi:10.1111/j.1600-0501.2009.01754.x
更新日期:2009-12-01 00:00:00
abstract:OBJECTIVES:To evaluate implant survival, peri-implant marginal bone loss, technical, and biological complications as well as aesthetic outcomes of zirconia implants in clinical studies. MATERIAL AND METHODS:Electronic (Medline, Embase) and hand searches were performed to identify clinical studies published between Jan...
journal_title:Clinical oral implants research
pub_type: 杂志文章,meta分析
doi:10.1111/clr.13352
更新日期:2018-10-01 00:00:00
abstract:OBJECTIVES:To investigate the effect of treated periodontitis on implant outcomes in partially edentulous individuals compared with periodontally healthy patients. MATERIAL AND METHODS:Longitudinal studies reporting on implant survival, success, incidence of peri-implantitis, bone loss and periodontal status, and on p...
journal_title:Clinical oral implants research
pub_type: 杂志文章,评审
doi:10.1111/clr.12684
更新日期:2016-07-01 00:00:00
abstract:OBJECTIVES:Minor sinus floor elevation is a method with relatively high predictability but is technically demanding. Improvement of the technique and increase in the predictability are desirable. MATERIAL AND METHODS:A clinical protocol for minor sinus floor elevation with SLA-ITI (large grit acid-etched implants with...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2005.01161.x
更新日期:2005-10-01 00:00:00
abstract:AIM OF THE STUDY:To evaluate the survival and success rate of Straumann Bone Level implants placed in vertically atrophied edentulous jaws previously reconstructed with autogenous onlay bone grafts taken from the calvarium or the mandibular ramus. MATERIALS AND METHODS:From 2007 to 2009, 18 patients presenting with ve...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2011.02262.x
更新日期:2012-09-01 00:00:00
abstract:PURPOSE:To assess the influence of complete maxillary sinus volume on the dimensional changes of different grafts used in maxillary sinus lift. MATERIALS AND METHODS:Analysis of 50 surgical procedures of maxillary sinus lift performed on 43 subjects using different grafting materials: fresh frozen allogenic particulat...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/clr.12488
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVES:The aim of this manuscript is to provide a bone map that can be used as a general guide to determine the areas where miniscrews can be safely anchored. MATERIALS AND METHODS:Twenty-one computed tomographies (CTs) of maxilla and mandible were taken by the imaging centre ORTOSCAN and two measures were taken: ...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1111/j.1600-0501.2007.01507.x
更新日期:2008-06-01 00:00:00
abstract::For certain surgical procedures (e.g. placement of implants), an accurate localisation of the mandibular canal is of utmost importance to avoid injuries to the neurovascular bundle. The aim of the present study was to evaluate, on human fresh cadavers (n = 6), the accuracy of conventional spiral tomography for the loc...
journal_title:Clinical oral implants research
pub_type: 杂志文章
doi:10.1034/j.1600-0501.2001.012003230.x
更新日期:2001-06-01 00:00:00