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Failed dental implant

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https://www.readbyqxmd.com/read/29150957/randomized-controlled-clinical-two-center-study-using-xenogeneic-block-grafts-loaded-with-recombinant-human-bone-morphogenetic-protein-2-or-autogenous-bone-blocks-for-lateral-ridge-augmentation
#1
Daniel S Thoma, Michael Payer, Norbert Jakse, Stefan P Bienz, Jürg Hüsler, Patrick R Schmidlin, Ui-Won Jung, Christoph H F Hämmerle, Ronald E Jung
OBJECTIVES: to test whether or not the use of a xenogeneic block loaded with recombinant human bone morphogenetic protein-2 (rhBMP-2) results in different bone quantity and quality compared to an autogenous bone block. MATERIALS AND METHODS: 24 patients with insufficient bone volume for implant placement were randomly assigned to two treatment modalities: a xenogeneic bone block loaded with rhBMP-2 (test) or an autogenous bone block (control). The horizontal ridge width was evaluated prior to augmentation, after augmentation and at 4 months...
November 18, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29140382/implant-mandibular-overdentures-retained-by-immediately-loaded-implants-a-1-year-randomized-trial-comparing-the-clinical-and-radiographic-outcomes-between-mini-dental-implants-and-standard-sized-implants
#2
Kostas Zygogiannis, Irene Ha Aartman, Azin Parsa, Ali Tahmaseb, Daniel Wismeijer
PURPOSE: The aim of this 1-year randomized trial was to evaluate and compare the clinical and radiographic performance of four immediately loaded mini dental implants (MDIs) and two immediately loaded standard-sized tissue-level (STL) implants, placed in the interforaminal region of the mandible and used to retain mandibular overdentures (IODs) in completely edentulous patients. MATERIALS AND METHODS: A total of 50 completely edentulous patients wearing conventional maxillary dentures and complaining about insufficient retention of their mandibular dentures were divided into two groups; 25 patients received four MDIs and 25 patients received two STL implants...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29117045/bone-augmentation-using-allogeneic-bone-blocks-with-recombinant-bone-morphogenetic-protein-2
#3
Craig M Misch
PURPOSE: Because of limitations of the absorbable collagen sponge (ACS), recombinant bone morphogenetic protein (rhBMP-2) requires a scaffolding device for ridge augmentation. MATERIALS AND METHODS: Twenty-one patients were treated with 37 allogeneic block grafts and rhBMP-2/ACS. Cone-beam computed tomography (CBCT) was used to measure the ridge at 2 points preoperatively, postoperatively, and after graft healing. Dental implants were placed after 6 months of healing...
November 6, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/29045800/survival-and-complications-of-single-dental-implants-in-the-edentulous-mandible-following-immediate-or-delayed-loading-a-randomized-controlled-clinical-trial
#4
M Kern, W Att, E Fritzer, S Kappel, R G Luthardt, T Mundt, D R Reissmann, M Rädel, M Stiesch, S Wolfart, N Passia
It was the aim of this 24-mo randomized controlled clinical trial to investigate whether the survival of a single median implant placed in the edentulous mandible to retain a complete denture is not compromised by immediate loading. Secondary outcomes were differences in prosthetic complications between the loading principles. Each of the 158 patients who received an implant was randomly assigned to the immediate loading group ( n = 81) or the delayed loading group ( n = 77). Recall visits were performed 1 mo after implant placement (for only the delayed loading group) and 1, 4, 12, and 24 mo after implant loading...
October 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/29032854/intrasinusal-locking-technique-a-novel-use-of-the-ring-block-technique-at-sinus-perforations-for-simultaneous-implant-placement
#5
A Sindel, M M Özarslan, Ö Özalp
Ten patients who underwent sinus lift surgery with simultaneous implant placement using the intrasinusal locking technique were evaluated retrospectively. All patients were scheduled for sinus floor elevation procedures with simultaneous implant placement. Schneiderian membrane perforation occurred during the lifting procedure, and conventional methods failed to repair the perforation. Therefore, an autogenous bone ring was placed at the base of the maxillary sinus and was locked to the alveolar crest with a dental implant...
October 9, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29032313/influence-of-platform-diameter-in-the-reliability-and-failure-mode-of-extra-short-dental-implants
#6
Dimorvan Bordin, Edmara T P Bergamo, Estevam A Bonfante, Vinicius P Fardin, Paulo G Coelho
PURPOSE: To evaluate the influence of implant diameter in the reliability and failure mode of extra-short dental implants. MATERIALS AND METHODS: Sixty-three extra-short implants (5mm-length) were allocated into three groups according to platform diameter: Ø4.0-mm, Ø5.0-mm, and Ø6.0-mm (21 per group). Identical abutments were torqued to the implants and standardized crowns cemented. Three samples of each group were subjected to single-load to failure (SLF) to allow the design of the step-stress profiles, and the remaining 18 were subjected to step-stress accelerated life-testing (SSALT) in water...
September 21, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28972882/immediate-reconstruction-of-failed-implants-in-the-esthetic-zone-using-a-flapless-technique-and-autogenous-composite-tuberosity-graft
#7
Gerry M Raghoebar, Henny J A Meijer, Baucke van Minnen, Arjan Vissink
We describe a technique for immediate reconstruction of bone after removal of failed dental implants in the esthetic region to optimize the esthetic outcome of retreatment. We conducted a study of 16 consecutive patients in whom the bony defect resulting from implant removal was immediately reconstructed with a combined autogenous bone and soft tissue graft harvested from the maxillary tuberosity. After a healing period of 3 months, implants were inserted. At 1 year after placement of the definitive restoration, no implants had been lost, the peri-implant tissues were healthy, the aesthetics scored with the pink esthetic score were favorable, and the patients were satisfied...
September 11, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28962664/a-new-concept-for-implant-borne-dental-rehabilitation-how-to-overcome-the-biological-weak-spot-of-conventional-dental-implants
#8
Nils-Claudius Gellrich, Björn Rahlf, Rüdiger Zimmerer, Philipp-Cornelius Pott, Majeed Rana
BACKGROUND: Every endosseous dental implant is dependent on an adequate amount and quality of peri-implant hard and soft tissues and their fully functional interaction. The dental implant could fail in cases of insufficient bone and soft tissues or due to a violation of the soft to hard tissues to implant shoulder interface with arising of a secondary bone loss. METHOD: To overcome this biological weak-spot, we designed a new implant that allows for multi vector endosseous anchorage around the individual underlying bone, which has to be scanned by computed tomography (CT) or Cone beam CT (CBCT) technique to allow for planning the implant...
September 29, 2017: Head & Face Medicine
https://www.readbyqxmd.com/read/28935490/immediate-loading-of-subcrestally-placed-dental-implants-in-anterior-and-premolar-sites
#9
Anders Henningsen, Ralf Smeets, Kai Köppen, Susanne Sehner, Frank Kornmann, Alexander Gröbe, Max Heiland, Till Gerlach
PURPOSE: Immediate loading of dental implants has been evolving into an appropriate procedure for the treatment of partially edentulous jaws. The purpose of this study was to evaluate the clinical success and radiological outcome of immediately and delayed loaded dental implants in anterior and premolar sites. MATERIALS AND METHODS: In this retrospective study, data of 163 individuals requiring tooth removal with subsequent implant placement in anterior and premolar sites were analyzed...
August 23, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28906510/retrospective-analysis-on-survival-rate-template-related-complications-and-prevalence-of-peri-implantitis-of-694-anodized-implants-placed-using-computer-guided-surgery-results-between-1-and-10-years-of-follow-up
#10
Marco Tallarico, Silvio Mario Meloni
PURPOSE: To report survival rate, early surgical template-related complications, and prevalence of peri-implantitis of dental implants placed in private practices using computer-guided, template-assisted surgery and followed between 1 and 10 years. MATERIALS AND METHODS: The present retrospective multicenter study evaluated data collected from fully or partially edentulous patients, with anodized-surface implants placed using computer-guided, template-assisted surgery between January 2006 and December 2015...
September 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28904311/retrospective-cohort-clinical-investigation-of-a-dental-implant-with-a-narrow-diameter-and-short-length-for-the-partial-rehabilitation-of-extremely-atrophic-jaws
#11
Paulo S Maló, Miguel A de Araújo Nobre, Armando V Lopes, Ana S Ferro
We investigated the short-term clinical outcomes of narrow-diameter short-length implants for the fixed-prosthetic partial rehabilitation of extremely resorbed jaws. Twenty-three patients requiring partial rehabilitations with narrow-platform short-length implants in any jaw were included in this study. In total, 30 implants 3.3 mm in diameter and 7 (n = 15 implants) or 8.5 (n = 15 implants) mm in length were inserted. The primary outcome measure was implant cumulative survival rate (CSR); the secondary outcome measures were marginal bone resorption at 1 and 3 years and the incidence of biologic and mechanical complications...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28898112/functional-odontoblastic-like-cells-derived-from-human-ipscs
#12
H Xie, N Dubey, W Shim, C J A Ramachandra, K S Min, T Cao, V Rosa
The induced pluripotent stem cells (iPSCs) have an intrinsic capability for indefinite self-renewal and large-scale expansion and can differentiate into all types of cells. Here, we tested the potential of iPSCs from dental pulp stem cells (DPSCs) to differentiate into functional odontoblasts. DPSCs were reprogrammed into iPSCs via electroporation of reprogramming factors OCT-4, SOX2, KLF4, LIN28, and L-MYC. The iPSCs presented overexpression of the reprogramming genes and high protein expressions of alkaline phosphatase, OCT4, and TRA-1-60 in vitro and generated tissues from 3 germ layers in vivo...
September 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28832716/risk-factors-for-implant-failure-a-retrospective-study-in-an-educational-institution-using-gee-analyses
#13
Marcelo Borba, Daniel Deluiz, Eduardo José Veras Lourenço, Luciano Oliveira, Patrícia Nivoloni Tannure
This study aimed to evaluate dental implant outcomes and to identify risk factors associated with implant failure over 12 years via dental records of patients attending an educational institution. Dental records of 202 patients receiving 774 dental implants from 2002 to 2014 were analyzed by adopting a more reliable statistical method to evaluate risk factors with patients as the unit [generalized estimating equation (GEE)]. Information regarding patient age at implantation, sex, use of tobacco, and history of systemic diseases was collected...
August 21, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28827854/immediate-loading-of-short-implants-in-posterior-maxillae-case-series
#14
Eduardo Anitua
BACKGROUND: There is an increasing number of scientific evidence supporting the clinical use of short dental implants. However, few studies have evaluated the long-term outcomes of immediate loading protocols in short implants. This study aims to evaluate immediate loading of short dental implants in the posterior regions of the maxillae. MATERIALS AND METHODS: Patients having short implants in maxillae posterior areas inserted before December, 2010 and immediately loaded were selected...
June 2017: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/28817136/prognosis-of-dental-implants-immediately-placed-in-sockets-affected-by-peri-implantitis-a-retrospective-pilot-study
#15
Eduardo Anitua, Laura Piñas, Leire Begoña, Mohammad Hamdan Alkhraisat
The aim of this study was to describe a protocol and analyze the outcomes of immediate replacement of failed implants due to peri-implantitis. A total of 17 patients (mean age: 58 ± 10 years) had 22 failed implants that were immediately replaced. One implant failed 16 months after insertion, resulting in an implant survival rate of 94.7%. The mean follow-up time was 40 ± 16 months (range: 9-52 months) after insertion. Mesial and distal bone loss were 0.89 ± 0.62 mm and 0.97 ± 0.66 mm, respectively. Immediate implant replacement could be considered in the management of implant failure due to peri-implantitis...
September 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28803735/previously-successful-dental-implants-can-fail-when-patients-commence-anti-resorptive-therapy-a-case-series
#16
M A Pogrel, S L Ruggiero
This article reports a type of localized osteonecrosis that can occur in patients who have had successful osseointegrated implants for many years and then commence anti-resorptive therapy. Eleven female patients were identified who had successful implant insertion, but who were placed on anti-resorptive therapy (bisphosphonates or denosumab) several years later and developed osteonecrosis around the implants. In each case, the osteonecrosis occurred only around the implants and not around the patient's remaining teeth...
August 10, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28796952/implanted-dental-pulp-cells-fail-to-induce-regeneration-in-partial-pulpotomies
#17
F Mangione, M EzEldeen, C Bardet, J Lesieur, M Bonneau, F Decup, B Salmon, R Jacobs, C Chaussain, S Opsahl-Vital
Cell-based partial pulp regeneration is one of the promising approaches to obtain newly formed functional dentin-pulp complex. It relies on the preservation of the healthy tissue while regenerating the damaged pulp. The aim of this study was to investigate whether this regenerative process could be achieved by implanting porcine dental pulp cells (pDPCs) in pulp defects in the minipig. By split-mouth model, self-assembling injectable nanopeptide hydrogel, with and without pDPCs, was implanted after cameral pulpotomy in premolars and molars...
November 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28783506/nanoscale-silver-depositions-inhibit-microbial-colonization-and-improve-biocompatibility-of-titanium-abutments
#18
Supriya Kheur, Nimisha Singh, Dhananjay Bodas, Jean-Yves Rauch, Shantanu Jambhekar, Mohit Kheur, Jyutika Rajwade
Although titanium dental implants are biocompatible, exhibit excellent corrosion resistance and high mechanical resistance, the material fails in providing resistance to infection because it exhibits poor antimicrobial activity. To address these issues, we deposited silver onto titanium abutments (Grade 5 titanium discs) using direct current (DC) sputtering and assessed the antimicrobial activity and biocompatibility of the modified implant material. Atomic absorption spectrometry and X-ray photoelectron spectroscopy were employed to investigate the concentration and elemental composition of the deposited silver...
July 29, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28764310/microleakage-at-the-different-implant-abutment-interface-a-systematic-review
#19
REVIEW
Sunil Kumar Mishra, Ramesh Chowdhary, Shail Kumari
INTRODUCTION: Presence of gap at the implant-abutment interface, leads to microleakage and accumulation of bacteria which can affect the success of dental implants. AIM: To evaluate the sealing capability of different implant connections against microleakage. MATERIALS AND METHODS: In January 2017 an electronic search of literature was performed, in Medline, EBSCO host and Pubmed data base. The search was focused on ability of different implant connections in preventing microleakage...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28758035/selectable-implant-removal-methods-due-to-mechanical-and-biological-failures
#20
Jong-Bin Lee
Dental implant has been restoring the function and esthetics lost from missing tooth. However, biomechanical implant complications are the major cause of failing implants. Therefore, implant removal is one of the indispensable dental treatments. The 70-year-old male and 66-year-old female who had discomfort on posterior implants region came to Department of Periodontology. Conventional method using trephine bur and the new, nontraumatic method using a fixture removal kit were used for implant removal, respectively...
2017: Case Reports in Dentistry
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