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https://www.readbyqxmd.com/read/29340355/human-histologic-evidence-of-new-bone-formation-and-osseointegration-between-root-dentin-unplanned-socket-shield-and-dental-implant-case-report
#1
Charles Schwimer, Gregory A Pette, Howard Gluckman, Maurice Salama, Jonathan Du Toit
The socket-shield technique described 7 years ago has since grown in its reporting in the literature as a valid method of ridge preservation at immediate implant placement. To date, large clinical cohorts with up-to-4-year follow-up have been reported. Additionally, evidence of tissue histology at the dental implant and socket-shield has been demonstrated in the animal model. However, human histologic evidence has not yet been available, and the clinician's uncertainty regarding the tissues that may form between the socket-shield and dental implant may remain unanswered until now...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29333323/alveolar-ridge-preservation-with-an-open-healing-approach-using-single-layer-or-double-layer-coverage-with-collagen-membranes
#2
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/29327431/enhanced-bone-regeneration-and-visual-monitoring-via-super-paramagnetic-iron-oxide-nanoparticle-scaffold-in-rats
#3
Shuying Hu, Yi Zhou, Yantao Zhao, Yang Xu, Feimin Zhang, Ning Gu, Junqing Ma, Mark A Reynolds, Yang Xia, Hockin H K Xu
A main challenge for use of scaffolds in bone engineering involves non-invasive monitoring in vivo and enhanced bone regeneration. The tissue-repair effect of super-paramagnetic iron oxide nanoparticles (SPIONs) was demonstrated previously by our group. However, testing in vivo is needed to confirm in vitro results. Here, SPIONs loaded gelatin sponge (GS) was used as a scaffold (SPIONs-GS) and implanted in the incisor sockets of Sprague-Dawley rats. Incisor sockets filled with nothing and filled with GS served as controls...
January 12, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29327257/biomechanical-characterisation-of-bone-anchored-implant-systems-for-amputation-limb-prostheses-a-systematic-review
#4
REVIEW
Alexander Thesleff, Rickard Brånemark, Bo Håkansson, Max Ortiz-Catalan
Bone-anchored limb prostheses allow for the direct transfer of external loads from the prosthesis to the skeleton, eliminating the need for a socket and the associated problems of poor fit, discomfort, and limited range of movement. A percutaneous implant system for direct skeletal attachment of an external limb must provide a long-term, mechanically stable interface to the bone, along with an infection barrier to the external environment. In addition, the mechanical integrity of the implant system and bone must be preserved despite constant stresses induced by the limb prosthesis...
January 11, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29315121/cervical-total-disk-arthroplasty
#5
Timothy T Roberts, Ryan J Filler, Jason W Savage, Edward C Benzel
In the United States, cervical total disk arthroplasty (TDA) is US Federal Drug Administration (FDA) approved for use in both 1 and 2-level constructions for cervical disk disease resulting in myelopathy and/or radiculopathy. TDA designs vary in form, function, material composition, and even performance in vivo. However, the therapeutic goals are the same: to remove the painful degenerative/damaged elements of the intervertebral discoligamenous joint complex, to preserve or restore the natural range of spinal motion, and to mitigate stresses on adjacent spinal segments, thereby theoretically limiting adjacent segment disease (ASDis)...
January 8, 2018: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29303859/three-dimensional-radiological-assessment-of-alveolar-bone-volume-preservation-using-bovine-bone-xenograft
#6
Ali Al Qabbani, Sausan Al Kawas, Noor Hayati A Razak, Saad Wahby Al Bayatti, Hamid Hammad Enezei, A Rani Samsudin, Suzina Sheikh Ab Hamid
INTRODUCTION: Alveolar bone is critical in supporting natural teeth, dental implants as well as a removable and fixed prosthesis. Alveolar bone volume diminishes when its associated natural tooth is lost. OBJECTIVE: The aim of this study is to evaluate the effectiveness of bovine bone granules on alveolar bone socket augmentation for ridge preservation following atraumatic tooth extraction. MATERIALS AND METHODS: Twenty medically fit patients (12 males and 8 females aged between 18 and 40 years) who needed noncomplicated tooth extraction of 1 mandibular premolar tooth were divided randomly and equally into 2 groups...
January 4, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29303409/clinical-evaluation-of-a-new-synthetic-resorbable-dental-membrane-a-case-series-study
#7
Hélène Martin Thomé, David Bourdin, Nicolas Strube, Afchine Saffarzadeh, Jean-Francois Morlock, Guillaume Campard, Charles Evanno, Alain Hoornaert, Pierre Layrolle
For the regeneration of small osseous defects, dental membranes are commonly used in oral and maxillofacial surgery. A new synthetic resorbable membrane has recently demonstrated its biocompatibility and bone regeneration capacity in preclinical studies. This membrane is made of poly-D,L-lactic/glycolic acid 85/15 (PLGA), has a bi-layered structure with a dense film to prevent gingival epithelial cell invasion and a micro-fibrous layer to support osteogenic cells and bone healing. This membrane completely degrades by hydrolysis in 4 to 6 months without signs of inflammation...
January 5, 2018: Journal of Oral Implantology
https://www.readbyqxmd.com/read/29302588/extraction-socket-sealing-using-palatal-gingival-grafts-and-resorbable-collagen-membranes
#8
Sang-Yun Kim, Young-Kyun Kim, Hyun-Suk Kim, Pil-Young Yun, Su-Gwan Kim, Yong-Hun Choi
Background: Socket sealing surgery is performed for the preservation of the form and volume of the soft tissue by covering the resulting socket with autogenous soft tissue graft or membrane barriers. This procedure is usually necessary to improve the esthetic results of the maxillary anterior or premolar areas. Methods: This study retrospectively investigated cases involving the open membrane technique or socket sealing surgery with a palatal gingival graft or collagen membrane where implant placement and bone grafting were performed immediately after tooth extraction...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29282871/minimally-invasive-esthetic-ridge-preservation-with-growth-factor-enhanced-bone-matrix
#9
Marc L Nevins, Sherif Said
OBJECTIVES: Extraction socket preservation procedures are critical to successful esthetic implant therapy. Conventional surgical approaches are technique sensitive and often result in alteration of the soft tissue architecture, which then requires additional corrective surgical procedures. This case series report presents the ability of flapless surgical techniques combined with a growth factor-enhanced bone matrix to provide esthetic ridge preservation at the time of extraction for compromised sockets...
December 28, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29280075/effect-of-flapless-ridge-preservation-with-two-different-alloplastic-materials-in-sockets-with-buccal-dehiscence-defects-volumetric-and-linear-changes
#10
Nadja Naenni, Vitor Sapata, Stefan P Bienz, Minas Leventis, Ronald E Jung, Christoph H F Hämmerle, Daniel S Thoma
OBJECTIVE: To test whether or not one out of two alloplastic materials used for ridge preservation (RP) is superior to the other in terms of volumetric and linear ridge changes over time. MATERIALS AND METHODS: In 16 adult beagle dogs, the distal roots of P3 and P4 were extracted and 50% of the buccal bone plate removed. Ridge preservation was performed randomly using two different alloplastic bone grafting substitutes (poly lactic-co-glycolic acid (PLGA) coated biphasic calcium phosphate particles consisting of 60% hydroxyapatite (HA) and 40% beta-tricalcium phosphate (ß-TCP=test 1), (a biphasic calcium phosphate consisting 60% HA and 40% ß-TCP=test 2) and a resorbable collagen membrane or a control group (sham)...
December 26, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29240211/retrospective-analysis-of-the-outcome-of-ridge-preservation-with-anorganic-bovine-bone-minerals-microcomputed-tomographic-assessment-of-wound-healing-in-grafted-extraction-sockets
#11
Neema Bakhshalian, Marcelo Freire, Seiko Min, Ivy Wu, Homayoun H Zadeh
A total of 68 extraction sockets were grafted with anorganic bovine bone mineral and covered by dense polytetrafluoroethylene membrane. Quantitative analysis of three-dimensional microcomputed tomography imaging of core samples retrieved after a mean of 21.0 ± 14.2 weeks revealed 40.1% bone volume fraction (bone volume [BV]/total volume [TV]) and 12% residual graft. Evidence of de novo bone formation was observed in the form of discrete islands of newly formed bone in direct apposition to graft particles, separated from parent bone...
January 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29240203/scar-tissue-formation-following-alveolar-ridge-preservation-a-case-control-study
#12
Stefan Fickl, Frederic Kauffmann, Christian F Stappert, Anke Kauffmann, Ulrich Schlagenhauf
The aim of this retrospective case control study was to compare a porcine collagen matrix (Mucograft Seal, Geistlich) with a free gingival punch graft with respect to size, invagination, and color of resulting soft tissue scar formation. Following definition of inclusion and exclusion criteria, 22 patients were retrospectively included in this study. The patients were divided into two groups. In group A, the extraction socket was filled with bovine bone mineral (Bio-Oss, Geistlich) and covered with a free gingival punch graft...
January 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29234230/traumatic-eye-ball-luxation-a-stepwise-approach-to-globe-salvage
#13
Himika Gupta, Srivalli Natarajan, Sushrut Vaidya, Shipra Gupta, Dinesh Shah, Raj Merchant, Shrikant Deshpande
Craniofacial trauma is often associated with orbital and ocular injuries. We report a case of a 21-year-old male with motor vehicular accident, orbital roof blow-in fracture, cerebrospinal fluid (CSF) leak, and left sided globe luxation with corneal abrasion and complete conjunctival denuding. The patient was managed by a multispeciality team and the eyeball was protected by amniotic membrane graft (AMG) biological dressing with novel use of inverted sterile metallic bowl as mechanical protection till the patient stabilized...
October 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/29195696/insufficient-evidence-about-benefits-of-socket-preservation-after-tooth-extraction-in-outcomes-important-to%C3%A2-patients
#14
Romina Brignardello-Petersen
No abstract text is available yet for this article.
November 23, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/29187751/demonstration-of-chemistry-at-a-point-through-restructuring-and-catalytic-activation-at-anchored-nanoparticles
#15
Dragos Neagu, Evangelos I Papaioannou, Wan K W Ramli, David N Miller, Billy J Murdoch, Hervé Ménard, Ahmed Umar, Anders J Barlow, Peter J Cumpson, John T S Irvine, Ian S Metcalfe
Metal nanoparticles prepared by exsolution at the surface of perovskite oxides have been recently shown to enable new dimensions in catalysis and energy conversion and storage technologies owing to their socketed, well-anchored structure. Here we show that contrary to general belief, exsolved particles do not necessarily re-dissolve back into the underlying perovskite upon oxidation. Instead, they may remain pinned to their initial locations, allowing one to subject them to further chemical transformations to alter their composition, structure and functionality dramatically, while preserving their initial spatial arrangement...
November 30, 2017: Nature Communications
https://www.readbyqxmd.com/read/29142657/extraction-socket-preservation-using-porcine-derived-collagen-membrane-alone-or-associated-with-porcine-derived-bone-clinical-results-of-randomized-controlled-study
#16
Renzo Guarnieri, Luigi Stefanelli, Francesca De Angelis, Francesca Mencio, Giorgio Pompa, Stefano Di Carlo
Objectives: The aim of present randomized controlled clinical trial was to clinically evaluate hard tissue changes after extraction socket preservation procedures compared to natural spontaneous healing. Material and Methods: Thirty patients were enrolled in the present study and underwent single-tooth extraction in the premolar/molar areas. Ten sites were grafted with porcine-derived bone covered by collagen membrane, 10 covered by porcine-derived collagen membrane alone, and 10 underwent natural spontaneous healing...
July 2017: Journal of Oral & Maxillofacial Research
https://www.readbyqxmd.com/read/29123314/retraction-note-socket-preservation
#17
L Fee
No abstract text is available yet for this article.
November 10, 2017: British Dental Journal
https://www.readbyqxmd.com/read/29120890/validity-of-collagen-plugs-for-ridge-preservation-in-a-canine-model
#18
Dong-Min Kim, Hyun-Chang Lim, Ji-Youn Hong, Seung-Il Shin, Jong-Hyuk Chung, Yeek Herr, Seung-Yun Shin
PURPOSE: The purpose of the present study was to evaluate healing outcomes after collagen plug insertion in extraction-related defects. MATERIALS AND METHODS: The third and fourth mandibular premolars in canines were extracted, and the septal bone was removed. The following treatments were performed for the defects: porcine atelo-collagen plug, bovine atelo-collagen plug, and no intervention (control). The experimental animals were killed after 6, 12, or 24 weeks (n = 4, respectively)...
November 7, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/29061357/saving-natural-teeth-intentional-replantation-protocol-and-case-series
#19
Derek Grzanich, Gabriella Rizzo, Renato Menezes Silva
INTRODUCTION: Intentional replantation is a reliable and predictable treatment for cases in which nonsurgical endodontic retreatment failed or is impractical and endodontic surgery is hampered because of anatomic limitations. METHODS AND RESULTS: This article presents a protocol for intentional replantation illustrated with some interesting cases. The cases presented here are from patients (average age, 61 years) with no contributing medical history. The cases are molars with previous failed endodontic treatment/retreatment and diagnosed with apical periodontitis...
October 20, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29023617/socket-shield-technique-for-implant-placement-in-the-esthetic-zone-a-case-report
#20
Matthias Petsch, Benedikt Spies, Ralf-Joachim Kohal
Improvements in implant design, placement protocols, and sequences for reconstruction in the anterior region have enabled clinicians to provide their patients with esthetically acceptable results. Yet from a clinical standpoint, the predictable preservation of the peri-implant soft tissue remains challenging and tissue grafting is often necessary to compensate for ridge contour changes in postextraction sites. In animal and clinical studies, the socket shield technique has shown its potential to prevent resorption of buccal tissues...
November 2017: International Journal of Periodontics & Restorative Dentistry
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