Abstract：
PURPOSE:The purpose of this study was to evaluate the rotational freedom between implant and abutment counterpart of two abutments types over external hexagon implants submitted to mechanical cycling. MATERIALS AND METHODS:Ten implants with external hexagon (3.75 mm × 13 mm), five cast abutments, and five premachined abutments both with 4.1 mm plataform size were used in this study. Ten metallic crowns were fabricated using the two types of abutments and were fixed to each implant using titanium screws (Ti6Al4V). Rotational freedom measurements were made before and after the cast procedure and after the mechanical cycling. Groups were classified according to the rotational misfit register using University of California, Los Angeles abutment and implants as new (group 1 = G1); using crowns and implants after crown casting (group 2 = G2); and using crowns and implants after mechanical cycling (group 3 = G3). Oblique loading of 120N at 1.8 Hz and 5 × 10(5) cycles was applied on specimen. RESULTS:Statistical analysis (p < .05) showed that no significant difference was observed when cast abutment was compared with premachined abutment after casting (p = .390) and mechanical cycling (p = .439); however, significant difference was noted before the casting (p = .005) with higher values for the cast abutments. CONCLUSIONS:Within the limitations of this in vitro study, it could be concluded that the abutment type used do not influenced the rotational freedom after casting and the amount of applied cycles (500,000 cycles) was not sufficient to significantly alter the values of rotational freedom at the implant/abutment joint.
journal_name
Clin Implant Dent Relat Resjournal_title
Clinical implant dentistry and related researchauthors
Junqueira MC,Silva TE,Ribeiro RF,Faria AC,Macedo AP,de Almeida RPdoi
10.1111/j.1708-8208.2011.00430.xsubject
Has Abstractpub_date
2013-12-01 00:00:00pages
927-33issue
6eissn
1523-0899issn
1708-8208journal_volume
15pub_type
杂志文章abstract：BACKGROUND:Straumann® BoneCeramic™ is a synthetic biphasic calcium phosphate (BCP) aimed for sinus floor augmentation. Long-term follow-up of implants placed in BCP after sinus augmentation is still missing. PURPOSE:The primary aim of the study was to compare survival rates and marginal bone loss of Straumann SLActive...
journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
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更新日期：2016-10-01 00:00:00
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journal_title：Clinical implant dentistry and related research
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journal_title：Clinical implant dentistry and related research
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journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
doi：10.1111/j.1708-8208.2005.tb00064.x
更新日期：2005-01-01 00:00:00
abstract：PURPOSE:In vivo bone response was assessed by removal torque, hystological and histometrical analysis on a recently developed biomedical Ti-15Mo alloy, after surface modification by laser beam irradiation, installed in the tibia of rabbits. MATERIALS AND METHODS:A total of 32 wide cylindrical Ti-15Mo dental implants w...
journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
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abstract：BACKGROUND:Long-term data (>10 years) concerning the survival and success rates of implants and implant-supported prostheses are scarce. PURPOSE:The present investigation represents one of the first studies on dental implants covering an observational period of 25 years. MATERIALS AND METHODS:This study presents the ...
journal_title：Clinical implant dentistry and related research
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abstract：BACKGROUND:Different attachment systems for mandibular two-implant overdentures could influence levels of patient satisfaction. Positive consensus of the majority of patients being satisfied does not preclude the possibility of dissatisfaction for some. PURPOSE:To evaluate patient satisfaction and dissatisfaction befo...
journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章,随机对照试验
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journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
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更新日期：2000-01-01 00:00:00
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journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
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journal_title：Clinical implant dentistry and related research
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journal_title：Clinical implant dentistry and related research
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journal_title：Clinical implant dentistry and related research
pub_type： 临床试验,杂志文章,随机对照试验
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更新日期：2004-01-01 00:00:00
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journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
doi：10.1111/j.1708-8208.2008.00125.x
更新日期：2009-12-01 00:00:00
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journal_title：Clinical implant dentistry and related research
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更新日期：2014-04-01 00:00:00
abstract：BACKGROUND:Although small perforation of the maxillary sinus schneiderian membrane is a well-documented complication during lateral sinus floor elevation (LSFE), complete perforations larger than 10 mm often result in discontinuation of surgery. Reports on reentry LSFE and its long-term outcomes are sparse. PURPOSE:To...
journal_title：Clinical implant dentistry and related research
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更新日期：2020-10-01 00:00:00
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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：BACKGROUND:In previous studies, immediate implant placement in molar sites has been widely applied. PURPOSE:To study the clinical effect and feasibility of immediate implant placement combined with maxillary sinus floor elevation utilizing the transalveolar approach and nonsubmerged healing for failing teeth in the ma...
journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章,随机对照试验
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更新日期：2019-06-01 00:00:00
abstract：BACKGROUND:Studies on the biological processes in different bone types and the reaction of different bone types to biomaterials are often hindered because of the difficulties in sampling procedures and lack of sensitive techniques. PURPOSE:The purpose was to assess the suitability of quantitative polymerase chain reac...
journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
doi：10.1111/j.1708-8208.2009.00195.x
更新日期：2011-06-01 00:00:00
abstract：BACKGROUND:Improvements of soft tissue to the abutment surface results in more stable peri-implant conditions, however, few human histological studies have compared soft tissue responses around different abutment materials. PURPOSE:To describe the peri-implant tissue around 3 abutment materials; titanium, zirconia, an...
journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章,随机对照试验
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更新日期：2018-04-01 00:00:00
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journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
doi：10.1111/j.1708-8208.2008.00115.x
更新日期：2009-09-01 00:00:00
abstract：BACKGROUND:In the past few decades, very little research has been carried out to modify implant surfaces to improve osteointegration through the regulation of immune cells. PURPOSE:The aim of this study is to investigate whether the poly(dopamine) (pDA)-assisted immobilization of IL4 on titanium surfaces could modulat...
journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
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更新日期：2019-10-01 00:00:00
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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
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journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
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更新日期：2014-08-01 00:00:00
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journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
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更新日期：2015-01-01 00:00:00
abstract：BACKGROUND:Three millimeter is considered as the minimum distance to obtain soft and bone tissue stability in case of adjacent implants. The possibility to preserve peri-implant bone level using a platform switching connection has questioned this concept. PURPOSE:The study evaluates soft tissue maintenance and margina...
journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章,随机对照试验
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更新日期：2020-08-01 00:00:00
abstract：BACKGROUND:There are no studies that have evaluated the correlation between self-rated pain, peri-implant clinical and radiographic parameters (plaque index [PI], bleeding on probing [BOP], probing depth [PD], and crestal bone loss [CBL]) and whole salivary interleukin (IL)-1β, IL-6, and tumor necrosis factor-alpha (TN...
journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
doi：10.1111/cid.12866
更新日期：2019-12-01 00:00:00
abstract：BACKGROUND:Immediate occlusal implant loading has been documented as a viable treatment option for various indications. However, documentations related to full-arch rehabilitation are usually limited to treatment of one jaw at a time, thereby leaving the opposing dentition unchanged. Furthermore, clinical documentation...
journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
doi：10.2310/j.6480.2005.00027.x
更新日期：2006-01-01 00:00:00
abstract：BACKGROUND:Extraction of impacted mandibular third molar (M3) has been cited as causing osseous defect at the distal aspect of the adjacent second molar (M2). PURPOSE:This randomized controlled trial was aimed to evaluate the effect of autogenous bone grafting in situ for regeneration of periodontal osseous defect dis...
journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章,随机对照试验
doi：10.1111/cid.12466
更新日期：2017-06-01 00:00:00
abstract：BACKGROUND:Maxillary sinus floor elevation surgery is widely used as a preimplantology method to permit implant insertion. Nevertheless, very few data are available about long-term stability of dental implants inserted in grafted sites. PURPOSE:The aims of the present study were to evaluate the evolution of resonance ...
journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
doi：10.1111/j.1708-8208.2008.00113.x
更新日期：2009-09-01 00:00:00
abstract：BACKGROUND:Association between long-term structural changes of grafted bone and outcomes of the implants is not clear. PURPOSE:Morphometrical measurements and implant success were analyzed in subjects of particulate cellular bone and marrow (PCBM) reconstruction of the jawbone. MATERIALS AND METHODS:Subjects were 30 ...
journal_title：Clinical implant dentistry and related research
pub_type： 杂志文章
doi：10.1111/cid.12723
更新日期：2019-04-01 00:00:00
