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Clinical Implant Dentistry and related Research

Bingkun Cheng, Qiang Niu, Yajun Cui, Wei Jiang, Yunzhuan Zhao, Liang Kong
BACKGROUND: Hierarchical hybrid micro/nanostructure implant surfaces are considered to better mimic the hierarchical structure of bone and the nanostructures substantively influence osseointegration through managing cell behaviors. PURPOSE: To enhance implant osseointegration for further clinical application, we evaluated the material properties and osseointegration effects of hierarchical surfaces with different nano-morphologies, using a rat model. MATERIALS AND METHODS: Two representative surface fabrication methods, hydrofluoric (HF) acid etching combined with anodization (HF + AN) or magnetron sputtering (HF + MS), were selected...
January 15, 2017: Clinical Implant Dentistry and related Research
Michael Korsch, Winfried Walther, Andreas Bartols
BACKGROUND: Methacrylate-based cements seem to promote peri-implant tissue inflammation even in the absence of excess cement. PURPOSE: The present study deals with the question of whether the removal of methacrylate cement from the peri-implant sulcus will lead to peri-implant tissues free of inflammation on a 1-year follow-up basis. MATERIAL AND METHODS: Implant supported suprastructures that had been in the mouth for at least 3.5 years either cemented with methacrylate (premier implant cement [PIC]) or zinc eugenol (temp bond [TB]) cement were compared...
January 15, 2017: Clinical Implant Dentistry and related Research
Yao-Te Peng, Chung-Chih Tseng, Yi-Chun Du, Yen-Nien Chen, Chih-Han Chang
BACKGROUND: The study proposed a novel method for converting a radiographic guide into a surgical guide and evaluated its accuracy. MATERIALS AND METHODS: Radiographic guide was reformed with the addition of index rods for geometric conversion method (GCM). Planning implants were projected on geometric projection planes, and the implant positions were measured. The radiographic guide was converted into surgical guide using a generic bench drill machine with GCM data...
January 11, 2017: Clinical Implant Dentistry and related Research
Yi-Chun Ko, Heng-Li Huang, Yen-Wen Shen, Jyun-Yi Cai, Lih-Jyh Fuh, Jui-Ting Hsu
BACKGROUND: Dental implants have become reliable and predictable tools for treating missing teeth. The survival rate of dental implants is markedly influenced by the host bone quality and quantity of the jawbone. A better host bone provides higher initial stability of the dental implant, resulting in better osseointegration and a higher success rate. Host bone quality and quantity are determined by the crestal cortical bone thickness and inner cancellous bone density. OBJECTIVE: The purpose of this study was to determine the crestal cortical bone thickness at dental implant sites in different regions of the jawbone through the use of dental cone-beam computed tomographic (CBCT) images...
January 10, 2017: Clinical Implant Dentistry and related Research
Qian Fu, Anuj Bellare, Yajun Cui, Bingkun Cheng, Shanshan Xu, Liang Kong
BACKGROUND: Owing to simplify the operation and shorten the overall duration of treatment, immediate implantation earned much satisfactory from patients and dentists. The results of immediate implantation determined by osseointegration, we fabricated a micro/nanotextured titanium implants to improve osseointegration immediately after tooth extraction. PURPOSE: The aim of this study was to investigate the effect of hierarchical micro/nanotextured titanium implant on osseointegration immediately after tooth extraction...
December 22, 2016: Clinical Implant Dentistry and related Research
Caroline C Eskow, Thomas W Oates
BACKGROUND: Emerging evidence suggests that implant therapy may be a viable option for diabetic individuals with elevated glycemic levels. PURPOSE: The purpose of this 2 year observational study was to evaluate survival and clinical complications of dental implants following placement in type 2 diabetes individuals having poor glycemic control. MATERIALS AND METHODS: Adult participants (n = 24) with poorly controlled type 2 diabetes (8...
December 19, 2016: Clinical Implant Dentistry and related Research
Sanako Makishi, Kotaro Saito, Hayato Ohshima
BACKGROUND: The role of osteopontin (OPN) in the process of achieving osseointegration following implantation remains to be clarified. PURPOSE: This study aimed to analyze the healing patterns of the bone-implant interface after immediate placement of implants in the maxillae of 4-week-old Opn-knockout (KO) and wild-type (WT) mice. MATERIALS AND METHODS: After maxillary first molars were extracted, cavities were prepared with a drill and titanium implants blasted with ceramic abrasives containing hydroxyapatite/β-tricalcium phosphate were placed...
December 12, 2016: Clinical Implant Dentistry and related Research
Jing Ge, Chi Yang, Jiawei Zheng, Yingkai Hu
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 distal to the M2 compared with non-grafting after impacted M3 removal. MATERIALS AND METHODS: A total of 60 sites in 51 adult patients were enrolled and randomly assigned to the control group or the test group...
December 8, 2016: Clinical Implant Dentistry and related Research
Feng Wang, Wenjie Zhou, Alberto Monje, Wei Huang, Yueping Wang, Yiqun Wu
PURPOSE: To investigate the influence of maturation timing upon histological, histomorphometric and clinical outcomes when deproteinized bovine bone mineral (DBBM) was used as a sole biomaterial for staged maxillary sinus floor augmentation (MSFA). MATERIALS AND METHODS: Patients with a posterior edentulous maxillary situation and a vertical bone height ≤ 4 mm were included in this study. A staged MSFA was carried out. After MSFA with DBBM as a sole grafting material, biopsy cores were harvested with simultaneous implant placement followed by a healing period of 5, 8, and 11 months, respectively...
November 16, 2016: Clinical Implant Dentistry and related Research
Ron Doornewaard, Véronique Christiaens, Hugo De Bruyn, Magnus Jacobsson, Jan Cosyn, Stijn Vervaeke, Wolfgang Jacquet
Publications from 2011 to 2015 were selected to evaluate effect of implant surface roughness on long-term bone loss as surrogate for peri-implantitis risk. 87 out of 2,566 papers reported the mean bone loss after at least 5 years of function. Estimation of the proportion of implants with bone loss above 1, 2, and 3 mm as well as analysis the effect of implant surface roughness, smoking, and history of periodontitis was performed. By means of the provided statistical information of bone loss (mean and standard deviation) the prevalence of implants with bone loss ranging from 1 to 3 mm was estimated...
November 15, 2016: Clinical Implant Dentistry and related Research
Mona Monzavi, Sammy Noumbissi, Hessam Nowzari
BACKGROUND: Despite increased popularity of Zirconia dental implants, concerns have been raised regarding low temperature degradation (LTD) and its effect on micro-structural integrity. PURPOSE: This study evaluated the effect of LTD on four types of Zirconia dental implants at 0, 30, and 60 years of artificial aging. The impact of aging on t-m transformation and micro crack formation was measured. MATERIALS AND METHODS: Accelerated aging at 15 and 30 hours, approximating 30 and 60 years in vivo, aged 36 Zirconia dental implants: Z systems(®) (A), Straumann(®) (B), Ceraroot(®) (C), and Zeramex(®) (D)...
November 9, 2016: Clinical Implant Dentistry and related Research
Roni Kolerman, Eitan Mijiritsky, Eitan Barnea, Areeje Dabaja, Joseph Nissan, Haim Tal
BACKGROUND: To validate the concept of immediate implant placement and nonfunctional loading for use in the esthetically sensitive anterior maxilla, clinical trials should ideally include objective esthetic criteria. PURPOSE: This study analyzed procedural results as graded by the pink esthetic score and white esthetic score (PES/WES). METHODS: Thirty-nine suitable patients (mean follow-up 44.82 ± 28 months) were evaluated. RESULTS: Thirty-eight implants fulfilled stringent criteria for successful osseointegration: absence of peri-implant radiolucency, implant mobility, suppuration, and pain...
November 2, 2016: Clinical Implant Dentistry and related Research
Simona Minozzi, Daniele Panetta, Massimo De Sanctis, Valentina Giuffra
BACKGROUND: During archaeological excavation, carried out in the S. Francesco Monastery at Lucca (Tuscany, Italy), a golden dental appliance was discovered. The prosthesis was found, together with commingled human remains, in the collective tomb of the aristocratic family of the Guinigi, a powerful family who governed Lucca from 1392 until 1429. The exact archaeological dating of the prosthesis was not possible, but some elements suggest a dating to the beginning of the 17th century. PURPOSE: Aim of the paper is to study and describe the dental appliance trough a multidisciplinary approach...
November 1, 2016: Clinical Implant Dentistry and related Research
Weerapan Aunmeungtong, Thongnard Kumchai, Frank P Strietzel, Peter A Reichart, Pathawee Khongkhunthian
BACKGROUND: Dental implant-retained overdentures have been chosen as the treatment of choice for complete mandibular removable dentures. Dental implants, such as mini dental implants, and components for retaining overdentures, are commercially available. However, comparative clinical studies comparing mini dental implants and conventional dental implants using different attachment for implant-retained overdentures have not been well documented. PURPOSE: To compare the clinical outcomes of using two mini dental implants with Equator(®) attachments, four mini dental implants with Equator attachments, or two conventional dental implants with ball attachments, by means of a randomized clinical trial...
November 1, 2016: Clinical Implant Dentistry and related Research
Leonardo Amorfini, Marco Migliorati, Sara Drago, Armando Silvestrini-Biavati
BACKGROUND: Implant-simulation software can now be used to improve treatment planning, guide surgery, and ensure more accurate implant placement. PURPOSE: The aim of this study was to evaluate the outcome of a guided surgery protocol versus a conventional protocol. MATERIALS AND METHODS: Twenty-six patients were randomly assigned to Guided Surgery or Conventional Surgery. In test group implants were placed in the maxilla using a tooth supported model-based surgical guide with a minimally invasive flap and immediately loaded...
October 28, 2016: Clinical Implant Dentistry and related Research
Tiziano Testori, Carlo Clauser, Matteo Deflorian, Matteo Capelli, Francesco Zuffetti, Massimo Del Fabbro
BACKGROUND: A new, computerized diagnostic tool, called the Longevity Protocol, was recently developed to predict implant failure. The present retrospective analysis was undertaken to assess the prognostic validity of this protocol. MATERIALS AND METHODS: A selected group of patients who had been treated with implants over the past 10 years at six dental clinics and experienced implant failure were included in the analysis. Another group of patients with similar characteristics, not experiencing implant failure, was used as control...
December 2016: Clinical Implant Dentistry and related Research
Stefan Krennmair, Michael Weinländer, Michael Malek, Thomas Forstner, Gerald Krennmair, Michael Stimmelmayr
PURPOSE: This prospective study evaluated the clinical and radiographic outcome of distally cantilevered 4-implant-supported fixed mandibular prostheses (4-ISFMP) with distal implants either in axial or distally tilted direction. MATERIAL AND METHODS: Forty-one mandibulary edentulous patients received acrylic veneered 4-ISFMP with casted framework. Based on distal implant placement direction patients were assigned to 2 groups: 21 patients with four (2 anterior/2 posterior) axial implants (axial-group I) and 20 patients with 2 anterior axial/2 distal tilted implants (tilted-group II)...
December 2016: Clinical Implant Dentistry and related Research
Xiao-Xiao Zhang, Jun-Yu Shi, Ying-Xin Gu, Hong-Chang Lai
BACKGROUND: There have been few studies investigating the long-term outcome of early-loaded implants with segmented bridgeworks on fully edentulous maxillae. PURPOSE: To evaluate the long-term predictability of early-loaded Straumann implant-supported fixed segmented bridgeworks in edentulous maxillae. MATERIAL AND METHODS: Ninety-one implants were placed in 12 patients with edentulous maxillae. After a healing period of 6 weeks, the abutments were tightened followed by cementing of fixed full-arch prostheses...
December 2016: Clinical Implant Dentistry and related Research
Roni Kolerman, Joseph Nissan, Arkadi Rahmanov, Eran Zenziper, Shimshon Slutzkey, Haim Tal
OBJECTIVES: Radiologic and biologic assessment of immediately restored Implants combined with guided bone regeneration (GBR) and free connective tissue graft. METHODS: 1-4 year retrospective study involving 34 patients treated with maxillary immediately restored anterior single-implants. Soft tissue dimensions, radiographic bone loss, and biological and prosthetic complications were assessed. RESULTS: During the mean follow up period of 29 months the study group presented a mean mesial bone loss of 1...
December 2016: Clinical Implant Dentistry and related Research
David Furze, Ashley Byrne, Sonia Alam, Julia-Gabriela Wittneben
BACKGROUND: Achieving an optimal esthetic result using dental implants is challenging. Fixed implant-supported provisional crowns are often used to customize the emergence profile and to individualize the surrounding peri-implant soft tissue. PURPOSE: The objective of this study is to evaluate whether the use of a provisional implant-supported crown leads to an esthetic benefit on implants that are placed in the esthetic zone. The null hypothesis is that there is no-difference between the two study groups...
December 2016: Clinical Implant Dentistry and related Research
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