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https://www.readbyqxmd.com/read/29333323/alveolar-ridge-preservation-with-an-open-healing-approach-using-single-layer-or-double-layer-coverage-with-collagen-membranes
#1
Ho-Keun Choi, Hag-Yeon Cho, Sung-Jo Lee, In-Woo Cho, Hyun-Seung Shin, Ki-Tae Koo, Hyun-Chang Lim, Jung-Chul Park
Purpose: The aim of this prospective pilot study was to compare alveolar ridge preservation (ARP) procedures with open-healing approach using a single-layer and a double-layer coverage with collagen membranes using radiographic and clinical analyses. Methods: Eleven molars from 9 healthy patients requiring extraction of the maxillary or mandibular posterior teeth were included and allocated into 2 groups. After tooth extraction, deproteinized bovine bone mineral mixed with 10% collagen was grafted into the socket and covered either with a double-layer of resorbable non-cross-linked collagen membranes (DL group, n=6) or with a single-layer (SL group, n=5)...
December 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29302285/implant-failure-and-history-of-failed-endodontic-treatment-a-retrospective-case-control-study
#2
Georgios S Chatzopoulos, Larry F Wolff
Background: Residual bacterial biofilm and/or bacteria in planktonic form may be survived in the bone following an extraction of an infected tooth that was endodontically treated unsuccessfully Failed endodontic treatment may be associated with failure of implants to osseointegrate in the same sites. Therefore, the aim of this retrospective case-control study is to examine the risk of implant failure in previous failed endodontic sites. Material and Methods: This retrospective case-control study is based on 94 dental records of implants placed at the University of Minnesota School of Dentistry...
November 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29284979/evaluation-of-the-accuracy-of-cone-beam-computed-tomography-for-immediate-implant-placement-a-case-report
#3
B Saravanan, P Jayavelu, R Riaz, A R Tariqsalam
Diagnostic imaging acts as a distinctive method in analyzing and drawing in the appropriate treatment protocol for any procedure. Pertaining to immediate implant placement, determining the bone width and height plays a vital role in the success of the implant therapy. This visualization of the measurements done preoperatively will enhance the treatment by reducing the overall time span of the procedure. Currently, cone beam computed tomography (CBCT) plays a significant role in the preoperative determination of the measurements of the tooth and the bone...
November 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/29281613/clinical-evaluation-of-complications-in-implant-supported-dentures-a-4-year-retrospective-study
#4
Sabiha Zelal Ülkü, Filiz Acun Kaya, Ersin Uysal, Belgin Gulsun
BACKGROUND Implants that can be used in the prosthetic rehabilitation of full and partial edentulous patients are now frequently used due to advances in dentistry. Despite advanced methods of applications, failures and complications can still be seen. The aim of our study was to evaluate clinical prosthetic values and complications that occurred during 4-year follow-up in implant-supported restorations. MATERIAL AND METHODS This retrospective study included 40 patients who received oral rehabilitation with an implant-supported prosthesis...
December 27, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29240199/late-dental-implant-failures-associated-with-retained-root-fragments-case-reports-with-histologic-and-sem-analysis
#5
Marc L Nevins, Laureen Langer, Peter Schupbach
Interest has recently developed in the purposeful retention of root fragments with their periodontal apparatus to support bone and soft tissue at immediate implant sites in the esthetic zone. This methodology is designed to avoid bone grafting, connective tissue grafts, and the use of membranes and may have short-term benefits in terms of tissue preservation. However, it is not completely without long-term risks. At times, implants may be unintentionally placed into edentulous sites where root fragments remain...
January 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29234747/flapless-vs-flapped-implant-insertion-in-patients-with-controlled-type-2-diabetes-subjected-to-delayed-loading-1-year-follow-up-results-from-a-randomised-controlled-trial
#6
Kaushal Kishor Agrawal, Jitendra Rao, Mohd Anwar, Kalpana Singh, D Himanshu
PURPOSE: To compare the outcome of dental implants placed following full-thickness flap surgery with flapless surgery in controlled type 2 diabetic patients. MATERIALS AND METHODS: A total of 92 controlled type 2 diabetic patients, who needed missing mandibular first molars to be replaced by implants, were selected for a single-centre, parallel group, double-blinded randomised controlled trial. Patients were randomly allocated into two groups: flap (46 patients) vs flapless (46 patients) implant placement...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/29220087/dual-energy-based-metal-segmentation-for-metal-artifact-reduction-in-dental-computed-tomography
#7
Mohamed A A Hegazy, Mohamed Elsayed Eldib, Daniel Hernandez, Myung Hye Cho, Min Hyoung Cho, Soo Yeol Lee
PURPOSE: In a dental CT scan, the presence of dental fillings or dental implants generates severe metal artifacts that often compromise readability of the CT images. Many metal artifact reduction (MAR) techniques have been introduced, but dental CT scans still suffer from severe metal artifacts particularly when multiple dental fillings or implants exist around the region of interest. The high attenuation coefficient of teeth often causes erroneous metal segmentation, compromising the MAR performance...
December 8, 2017: Medical Physics
https://www.readbyqxmd.com/read/29201974/the-risk-factors-in-early-failure-of-dental-implants-a-retrospective-study
#8
Hassan Mohajerani, Roozbeh Roozbayani, Shahram Taherian, Reza Tabrizi
Statement of the Problem: Despite the low failure rate of dental implants, recognition of the risk factors can enhance the predictability of failure. Purpose: The aim of this study was to evaluate the risk factors for early implant failure. Materials and Method: This retrospective cohort study was conducted on two groups of patients, the patients with a failed implant before loading and those without a failed implant. Age, gender, implant type, implant surface, implant length, bone type, type of surgery (one- or two-stage) and immediate (fresh socket) or delayed placement of implant were the variables to be assessed in this study...
December 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29199387/early-marginal-bone-stability-of-dental-implants-placed-in-a-transalveolarly-augmented-maxillary-sinus-a-controlled-retrospective-study-of-surface-modification-with-calcium-ions
#9
Eduardo Anitua, Laura Piñas, Mohammad Hamdan Alkhraisat
BACKGROUND: Recently, components of the extracellular cellular matrix have been assessed to enhance the biological response to dental implants. This study aims to assess the effect of surface modification with calcium ions on the early marginal bone loss of dental implants placed in a transalveolarly augmented maxillary sinus. METHODS: A retrospective study of transalveolar sinus floor augmentation was conducted in a single private dental clinic. The predictor variable was the surface of the dental implant...
December 4, 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/29197433/outcomes-of-dental-implant-therapy-in-patients-with-down-syndrome-a-systematic-review
#10
REVIEW
Shariq Najeeb, Zohaib Khurshid, Fahad Siddiqui, Sana Zohaib, Muhammad Sohail Zafar
OBJECTIVES: Patients with Down syndrome (DS) require an earlier and more frequent tooth replacement than rest of the population. The objective of this systematic review is to critically analyze and summarize studies to ascertain the outcomes and survival of dental implants placed in jaws of DS patients. METHODS: Using the key words "dental implants," "Down syndrome," and "prosthodontics," an electronic search was conducted via PubMed/MEDLINE, ISI Web of Science, Google Scholar, Embase, and Central Register of Controlled Trials (CENTRAL) databases by 2 authors, S...
December 2017: Journal of Evidence-based Dental Practice
https://www.readbyqxmd.com/read/29189406/cleidocranial-dysplasia-a-review-of-clinical-radiological-genetic-implications-and-a-guidelines-proposal
#11
Emilie Farrow, Romain Nicot, Axel Wiss, Amélie Laborde, Joël Ferri
In this review, we aimed to depict the clinical, radiological, and genetic features of cleidocranial dysplasia (CCD) and to suggest management guidelines, based on our experience of 8 cases, with an emphasis given to dental complications.The most common craniofacial features of CCD that stand out are a patency of the anterior fontanelle, an inverted pear-shaped calvaria, a hypertelorism, a general midface retrusion, and a mandible prognathism, associated with an excessive mobility of the shoulders, a short stature, and teeth abnormalities such as supernumerary teeth and failure of eruption, in particular...
November 17, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29182488/the-influence-of-prosthesis-design-on-the-outcomes-of-tooth-implants-immediately-placed-and-loaded-by-means-of-one-piece-titanium-restoration
#12
Paolo Toti, Simone Marconcini, Enrica Giammarinaro, Giorgio Pedretti, Antonio Barone, Ugo Covani
Our purpose was to evaluate the occurrence of complications, and the degree of bone loss in a cohort of patients treated with fixed prostheses supported by immediately loaded dental implants. The primary aim was to compare partial versus full-arch Fixed Dental Prostheses. We then tested the effect of sinus lifting. In the present retrospective cohort study, the patients had their implants restored with Fixed Dental Prostheses supported by dental implants positioned in the posterior maxilla and mandible. When necessary, the maxillary sinuses were grafted with particulate autogenous bone...
November 28, 2017: Journal of Oral Implantology
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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