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Clinical Implant Dentistry and related Research

Jianming Zhang, Xingying Qi, Xiaoding Luo, Dan Li, Haorong Wang, Ting Li
BACKGROUND: Platelet-rich fibrin (PRF) has been widely used in oral implantology and other fields, but benefits of the fresh PRF (FPRF (fresh platelet-rich fibrin)) were consequently limited because of its short-term application. Thus, a protocol for the combination of PRF and lyophilization comes up in the present study to address the issue of PRF storage and delayed clinical application, which has little been reported in this field at home and abroad by now. PURPOSE: The aim of the present study was to evaluate the applicability of lyophilized platelet-rich fibrin (Ly-PRF) used as the scaffold material for craniofacial tissue regeneration and to compare its biochemical properties with commonly used fresh PRF...
February 13, 2017: Clinical Implant Dentistry and related Research
Hadi Antoun, Michel Karouni, Jérémy Abitbol, Ons Zouiten, Torsten Jemt
BACKGROUND: Few large-scale follow-up studies are reported on routine implant treatment. PURPOSE: To report retrospective data on early inflammatory and early implant failures in a large number of routine patients at one private referral clinic. MATERIALS AND METHODS: A total of 1017 patients were consecutively provided with 3082 implants with an anodized surface (Nobel Biocare AB) at 1592 implant operations between 2000 and 2011. All patients reported with mucosa inflammation and bone loss and/or implant failures to the first annual examination were identified...
February 10, 2017: Clinical Implant Dentistry and related Research
Fernando Verdugo, Agurne Uribarri, Antonio D'Addona
BACKGROUND: Mucosal recession (MR) and bone loss can compromise anterior implant esthetics. PURPOSE: To evaluate tissue stability and clinical outcomes of anterior implants augmented with autogenous block transplants long-term. MATERIALS AND METHODS: This prospective cross-sectional clinical study analyzed facial tissue recession of anterior implants augmented with autogenous bone blocks and compared them to adjacent teeth in forty patients 52 months post-augmentation...
February 10, 2017: Clinical Implant Dentistry and related Research
Tim Joda, Marco Ferrari, Urs Brägger
BACKGROUND: The technical development of digital processing allows the production of anatomically full-contoured implant-supported restorations. PURPOSE: The aim of this prospective clinical trial was to analyze the treatment concept of monolithic lithium disilicate (LS2) single-unit restorations in a complete digital workflow. MATERIAL AND METHODS: Forty-four patients were restored with 50 screw-retained monolithic implant LS2 crowns bonded to pre-fabricated titanium abutments on soft tissue level implants (Institut Straumann AG, Basel, Switzerland) in premolar and molar sites...
January 16, 2017: 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
Daniel Deluiz, Luciano Santos Oliveira, Fábio Ramôa Pires, Teresita Reiner, Luciana Armada, Marcus A Nunes, Eduardo Muniz Barretto Tinoco
BACKGROUND: Severe alveolar atrophy often presents a challenge for the implant surgery. The significant lack of bone in the alveolar ridges may compromise the final restorations both from the aesthetic and functional standpoints. OBJECTIVES: To evaluate the behavior of bone block allografts for the maxillary augmentation and to investigate its incorporation, remodeling, and implant survival rates in two different healing time points. MATERIAL AND METHODS: Sixty-six consecutive patients (52 female/14 male, mean age: 57...
February 2017: Clinical Implant Dentistry and related Research
Silvio Mario Meloni, Marco Tallarico, Milena Pisano, Erta Xhanari, Luigi Canullo
BACKGROUND: High primary implant stability is considered one of the main factors necessary for achieving predictable treatment outcomes with immediately loaded implant-supported screw-retained fixed complete denture prosthesis (FCDP). PURPOSE: To evaluate the 5-year clinical and radiographic outcomes of immediately loaded implants placed in edentulous patients using computer-assisted template-guided surgery to support a FCDP. MATERIALS & METHODS: Patients in need to be restored with a FCDP in the mandible or maxilla were included in this prospective study/ and treated using computer-assisted template-guided surgery...
February 2017: Clinical Implant Dentistry and related Research
Ulf Schepke, Henny J A Meijer, Wouter Kerdijk, Gerry M Raghoebar, Marco Cune
BACKGROUND: Single-tooth replacement often requires a prefabricated dental implant and a customized crown. The benefits of individualization of the abutment remain unclear. PURPOSE: This randomized controlled clinical trial aims to study potential benefits of individualization of zirconia implant abutments with respect to preservation of marginal bone level and several clinical and patient-based outcome measures. MATERIAL AND METHODS: Fifty participants with a missing premolar were included and randomly assigned to standard (ZirDesign, DentsplySirona Implants, Mölndal, Sweden) or computer aided design/computer aided manufacturing (CAD/CAM) customized (Atlantis, DentsplySirona Implants, Mölndal, Sweden) zirconia abutment therapy...
February 2017: Clinical Implant Dentistry and related Research
Vivianne Chappuis, Yeliz Cavusoglu, Daniel Buser, Thomas von Arx
BACKGROUND: The use of autogenous block grafts harvested from intraoral donor sites has proven to be effective for the reconstruction of horizontal bone defects. PURPOSE: The objective of this study was to analyze implant success and the rate of block graft resorption 10 years after ridge augmentation to elucidate contributing factors influencing graft maintenance. MATERIALS AND METHODS: A staged horizontal block graft augmentation was performed in 52 implant sites exhibiting severe horizontal bone atrophy using autogenous block grafts protected by DBBM and collagen membranes...
February 2017: Clinical Implant Dentistry and related Research
Huajie Yu, Xing Wang, Lixin Qiu
BACKGROUND: Very few controlled studies have compared short and long implants placed with appropriate sinus floor elevation techniques. PURPOSE: To compare the 2-year outcomes of 6.5-mm hydrophilic implants placed with osteotome sinus floor elevation (OSFE) and standard implants placed with lateral sinus floor elevation in patients with a severely atrophic posterior maxilla. MATERIALS AND METHODS: Thirty-eight patients with a residual bone height of 4-5 mm were randomized to receive one of the two above-mentioned treatments...
February 2017: Clinical Implant Dentistry and related Research
Xiao-Meng Zhang, Jun-Yu Shi, Ying-Xin Gu, Shi-Chong Qiao, Jia-Ji Mo, Hong-Chang Lai
PURPOSE: The aim of the study was to evaluate the clinical parameters and patient satisfaction of the treatments with short implants compared to longer implants with osteotome sinus floor elevation (OSFE) in atrophic posterior maxillae. MATERIALS AND METHOD: The patient data were retrieved from an ongoing randomized controlled trial (NCT02350075). Patients were randomly allocated into three groups: (group1: short-6 mm implant, group 2: short-8-mm implant with OSFE, group 3: standard-10 mm implant with OSFE)...
February 2017: Clinical Implant Dentistry and related Research
Guillaume Choucroun, Julien Mourlaas, Nur Hafizah Kamar Affendi, Stuart J Froum, Sang-Choon Cho
PURPOSE: To present a classification and assess the presence and degree of cortication of the sinus floor utilizing Computerized Tomography (CT) scan images. MATERIALS AND METHODS: One hundred CT scans, of patient who required a sinus augmentation procedure (SAP), were evaluated and classified according to the Type of sinus floor cortication (SFC). Type 1: sinus floor showing similar or higher density than the surrounding cortical areas. Type 2: sinus floor showing less density than the surrounding cortical areas...
February 2017: Clinical Implant Dentistry and related Research
Roberto S Pessoa, Ravel M Sousa, Leandro M Pereira, Flavio D Neves, Fabio J B Bezerra, Siegfried V N Jaecques, Jos V Sloten, Marc Quirynen, Wim Teughels, Rubens Spin-Neto
OBJECTIVES: To evaluate clinical, radiographic, microbiologic, and biomechanical parameters related to bone remodeling around implants with external hexagon (EH) and Morse-taper (MT) connections. MATERIALS AND METHODS: Twelve totally edentulous patients received four custom-made implants in the interforaminal region of the mandible. Two of those implants had the same macroscopic design, but different prosthetic connections. All patients received an immediate implant-supported prosthesis...
February 2017: Clinical Implant Dentistry and related Research
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