Abstract:
BACKGROUND:Accurate recording of implant location is required so that definitive restorations are properly supported and do not place additional stresses on the implants. Movement of impression copings inside the impression material using an open-tray or close-tray impression technique during clinical and laboratory phases may cause inaccuracy in transferring the three-dimensional spatial orientation of implants intraorally to the definitive cast. Consequently, the restoration may require corrective procedures. AIM:This in vitro study compared the accuracy of two different impression techniques with two different impression coping shapes using polyether impression material to obtain precise definitive casts. MATERIALS AND METHODS:Two reference acrylic resin models (Technovits 4000, Heraeus Kulzer GmbH & Co., Wehrheim, Germany) with five internal connection implants having different shapes of impression copings (Implantium [Dentium, Seoul, South Korea] and Replace Select [Nobel Biocare AB, Göteborg, Sweden]) were fabricated. Twenty medium-consistency polyether impressions of these models were made with square and conical impression copings of each system using open-tray and close-tray techniques. Matching implant replicas were screwed into the impression copings in the impressions. Impressions were poured with type IV stone, and the positional accuracy of the implant replica heads in x-, y-, and z-axes (represented in [Δr]) and also rotational displacement (ΔΘ) were evaluated using a coordinate measuring machine (Mistral, DEA Brown&Sharpe, Grugliasco, Italy). These measurements (linear and rotational displacements) were compared with the measurements calculated on the reference resin models that served as control, and data were analyzed with a two-way analysis of variance at α = 0.05. RESULTS:Less inaccuracy occurred in less retentive shape impression copings (Replace Select) compared with the more retentive one (Implantium) (p(r) < .001 and p(Θ) < .001), but there was no significant difference between direct and indirect impression techniques (p(r) and p(Θ) > .05). CONCLUSION:The impression coping shape had more impact on impression inaccuracy than impression technique did. Understanding of the magnitude and variability of distortion when employing certain impression-making methods and impression coping shapes helps the clinician to select a better implant component and impression technique.
journal_name
Clin Implant Dent Relat Resjournal_title
Clinical implant dentistry and related researchauthors
Rashidan N,Alikhasi M,Samadizadeh S,Beyabanaki E,Kharazifard MJdoi
10.1111/j.1708-8208.2009.00241.xsubject
Has Abstractpub_date
2012-04-01 00:00:00pages
218-25issue
2eissn
1523-0899issn
1708-8208pii
CID241journal_volume
14pub_type
杂志文章abstract:BACKGROUND:One possible complication of implant surgery in the posterior maxilla is the displacement of implants into the maxillary sinus. PURPOSE:To report on clinical and radiological findings and on biological, surgical, and biomechanical considerations in cases of implant displacement. MATERIALS AND METHODS:This ...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12244
更新日期:2016-02-01 00:00:00
abstract:PURPOSE:To prospectively assess the outcome of immediate rehabilitation of extremely atrophic mandibles by a full-arch fixed bridge anchored to four implants. MATERIAL AND METHODS:Twenty patients with edentulous mandibles were included in the study. Each patient received a full-arch fixed bridge supported by two axial...
journal_title:Clinical implant dentistry and related research
pub_type: 临床试验,杂志文章
doi:10.1111/j.1708-8208.2009.00265.x
更新日期:2012-06-01 00:00:00
abstract:BACKGROUND:Bone allografts have shown satisfactory clinical results in alveolar ridge reconstructions. However, the process of incorporation and the resorption rates of these grafts are not yet fully understood. PURPOSE:The aim of this study was to use computed tomography (CT), histology, and histomorphometry to asses...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章,随机对照试验
doi:10.1111/cid.12108
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:Information on the microbiota in peri-implantitis is limited. We hypothesized that neither gender nor a history of periodontitis/smoking or the microbiota at implants differ by implant status. MATERIALS AND METHODS:Baseline microbiological samples collected at one implant in each of 166 participants with pe...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12052
更新日期:2014-12-01 00:00:00
abstract:PURPOSE:The purpose of this study is to evaluate the retention of two-piece computer-aided design (CAD)/computer aided manufacturing (CAM) zirconia abutments after artificial aging under simulated oral conditions using three different types of resin-based luting agents. MATERIAL AND METHODS:Twenty-one CAD/CAM-generate...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12060
更新日期:2014-12-01 00:00:00
abstract:PURPOSE:To describe the early bone tissue response to implants with and without micro threads designed to the full length of an oxidized titanium implant. MATERIALS AND METHODS:A pair of two-dimensional finite element models was designed using a computer aided three-dimensional interactive application files of an impl...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12143
更新日期:2015-06-01 00:00:00
abstract:PURPOSE:The purpose of this prospective follow-up study was to evaluate survival and success of early-loaded implants placed in the edentulous mandible and the survival of the fixed dental prostheses (FDPs) after in mean 7.2 years. MATERIALS AND METHODS:Thirty-seven patients (mean age 64.5 years, 18.9% male) received ...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12062
更新日期:2014-12-01 00:00:00
abstract:BACKGROUND:Bone morphogenetic protein-2 (BMP2) has been successfully utilized in dentistry to promote new bone formation because of its osteoinductive ability to recruit mesenchymal progenitor cells and induce their differentiation to bone-forming osteoblasts. Recently, novel biphasic calcium phosphate scaffolds have b...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12384
更新日期:2016-12-01 00:00:00
abstract:BACKGROUND:The aim of this study was to assess survival rate of immediate loading implants placed after split-crest technique. METHODS:Thirty-six patients were enrolled in the study. They underwent placement of 93 dental implants in edentulous region after split-crest ridge expansion procedure. Implants followed an im...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12316
更新日期:2015-10-01 00:00:00
abstract:BACKGROUND:Full-arch immediate function protocols such as the All-on-4 concept need long-term validation. PURPOSE:To report the 5-13 year outcomes of the All-on-4 treatment concept for the rehabilitation of the edentulous maxilla. MATERIALS AND METHODS:This retrospective case series study involved 1072 patients (4288...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12771
更新日期:2019-08-01 00:00:00
abstract:PURPOSE:This study investigated how the primary stability of a dental implant as measured by the insertion torque value (ITV), Periotest value (PTV), and implant stability quotient (ISQ) is affected by varying thicknesses of cortical bone and strengths of trabecular bone using synthetic bone models. MATERIALS AND METH...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/j.1708-8208.2011.00349.x
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND:The effects of the locations of dental implants on treatment outcomes, as evaluated by oral health-related quality of life (OHRQoL) assessment, remain controversial. PURPOSE:To investigate the association between the locations of dental implants and changes in OHRQoL. MATERIALS AND METHODS:Sixty-eight subj...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12497
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND:Studies assessing clinical and radiographic peri-implant parameters around short dental implants (SDIs) in treated generalized aggressive periodontitis (GAgP) patients are scant. OBJECTIVES:This 3-year follow-up study aimed to compare the clinical peri-implant and radiographic bone status around SDIs placed...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12761
更新日期:2019-08-01 00:00:00
abstract:PURPOSE:The aim of this study was to evaluate bone regeneration at surgically created dehiscence buccal defects at implants placed immediately into extraction sockets (IPIES) of small dimensions filled with autogenous bone or deproteinized bovine bone mineral (DBBM) associated with a collagen membrane. MATERIALS AND M...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12328
更新日期:2016-06-01 00:00:00
abstract:BACKGROUND:A real-time surgical navigation system potentially increases the accuracy when used for quad-zygomatic implant placement. PURPOSE:To evaluate the accuracy of a real-time surgical navigation system when used for quad zygomatic implant placement. MATERIALS AND METHODS:Patients with severely atrophic maxillae...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12475
更新日期:2017-06-01 00:00:00
abstract:BACKGROUND:Implant restorations first started with total edentulism. Later, the scientific community gave its approval for restorations in partial edentulism, and only recently some studies confirmed the validity of the treatment for single-tooth replacement. PURPOSE:The purpose of the study was to evaluate implant su...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1708-8208.2000.tb00006.x
更新日期:2000-01-01 00:00:00
abstract:PURPOSE:The study aims to determine if midline mandibular dental implants pose a risk for the midline lingual canal (MLC). MATERIALS AND METHODS:Cone beam computed tomography was used to scan 122 mandibles (31 black males; 28 black females; 32 white males and 31 white females). Midsagittal sections in the reconstructe...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12080
更新日期:2015-02-01 00:00:00
abstract:BACKGROUND:Customized sealing socket abutment (SSA) has been claimed to optimize the peri-implant hard and soft tissues in type 1 implant placement. However, the evidence to claim the benefits of this technique over the use a conventional healing abutment remains weak. PURPOSE:The aim of this retrospective study was t...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12974
更新日期:2021-01-13 00:00:00
abstract:BACKGROUND:Peri-implant mucositis is very common and, when left untreated, can progress to the more serious condition of peri-implantitis. Therefore, early diagnosis, adequate treatment and, in particular, adherence to a peri-implant supportive therapy are extremely important for the management of peri-implant mucositi...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12833
更新日期:2019-10-01 00:00:00
abstract:BACKGROUND:Recently, the present team reported the 1-year data of one-stage surgery and mainly early loading performed in edentulous mandibles using 750 turned Brånemark System implants in 152 patients. PURPOSE:The aim of the present investigation was to retrospectively evaluate the 1-year results of the same treatmen...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/j.1708-8208.2007.00060.x
更新日期:2008-03-01 00:00:00
abstract:PURPOSE:To prospectively assess long-term (20 year) clinical, radiographic, and patient-reported outcomes of an elderly population provided with mandibular implant-supported overdentures. MATERIALS AND METHODS:A total of 53 elderly (aged ≥60 years at the time of treatment) were provided with two endosseous implants su...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12772
更新日期:2019-08-01 00:00:00
abstract:BACKGROUND:The replacement of a single tooth or several teeth by means of single-implant restorations is an increasingly used method that needs long-term validation. PURPOSE:The goal of this study was to evaluate the outcome of single-implant restorations by means of fixed restorations and to define the prognosis thro...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/j.1708-8208.2000.tb00119.x
更新日期:2000-01-01 00:00:00
abstract:BACKGROUND:Implant surface topography influences the bone response after implantation. However, the importance of surface orientation is not known. PURPOSE:The aim of this study was to investigate the bone tissue response and the stability of titanium implants prepared with isotropic and anisotropic surfaces of simila...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/j.1708-8208.2005.tb00042.x
更新日期:2005-01-01 00:00:00
abstract:OBJECTIVE:Regardless of gingival health and subgingival microbiology, production of cytokines within peri-implant tissues may be different from that of teeth. The objective of this study was to describe the peri-implant levels of pro-inflammatory cytokines and subgingival microbiology in clinically healthy sites. MATE...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/j.1708-8208.2010.00299.x
更新日期:2012-08-01 00:00:00
abstract:BACKGROUND:Peri-implantitis is an infection of the implant surface caused by adhesion of bacteria that generate bone resorption and sometimes even consequent implant loss. Both screw-retained and cemented fixed implants are affected. PURPOSE:The purpose of this study is to investigate the morphological defects at the ...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12133
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Insufficient residual alveolar bone height is a common deterrent in the placement of dental implants in the posterior maxilla. The use of autografts, xenografts, allografts and alloplasts or a combination between them has been demonstrated to be effective for increasing bone height and bone volume in the def...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章,随机对照试验
doi:10.1111/cid.12289
更新日期:2015-10-01 00:00:00
abstract:PURPOSE:The objective of this study was to evaluate the immediate bone damage and bone repair after osteotomy for implants using conventional drills and drills powered by piezoelectric motor. MATERIALS AND METHODS:Twelve rabbits received a tibial osteotomy with a conventional drill (control), with a diamond like carbo...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12907
更新日期:2020-06-01 00:00:00
abstract:BACKGROUND:Implant treatment in the partially edentulous maxilla is often challenging because of minimum bone volumes in distal direction. PURPOSE:The aim of this study was to evaluate, after 1 year of loading, the outcome of three-unit fixed partial dentures supported by two implants in the retrocanine triangle. MAT...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/j.1708-8208.2009.00170.x
更新日期:2010-12-01 00:00:00
abstract:BACKGROUND:Air abrasion (AA) is one of the decontamination methods that have demonstrated promising results in treating peri-implant diseases. PURPOSE:This systematic review aimed at evaluating the in vitro effect of AA on surface change, cleaning efficacy, and biocompatibility of titanium surfaces and at comparing it...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12747
更新日期:2019-04-01 00:00:00
abstract:BACKGROUND:Immediately-loaded, narrow-diameter implants can be a less invasive alternative for the implant-supported fixed rehabilitation of narrow, posterior crests. PURPOSE:To determine the stability and marginal bone level (MBL) changes of narrow-diameter, titanium-zirconium (TiZr) implants placed with flapless sur...
journal_title:Clinical implant dentistry and related research
pub_type: 杂志文章
doi:10.1111/cid.12392
更新日期:2016-12-01 00:00:00