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Ridge preservation

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https://www.readbyqxmd.com/read/28105590/case-report-on-managing-incomplete-bone-formation-after-bilateral-sinus-augmentation-using-a-palatal-approach-and-a-dilating-balloon-technique
#1
Tobias K Boehm
BACKGROUND: Patients with resorbed edentulous alveolar ridges in the posterior maxilla often require lateral window sinus augmentation procedures prior to implant placement. Lateral window sinus augmentation procedures can produce incomplete bone augmentation as consequence of surgical and healing complications producing unusual and complex sinus anatomy. Although incomplete bone formation after sinus augmentation has been described in a previous case reports, this is the first case report that describes grafting these compromised sites prior to implant placement...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28050319/the-hidden-x-suture-a-technical-note-on-a-novel-suture-technique-for-alveolar-ridge-preservation
#2
Jung-Chul Park, Ki-Tae Koo, Hyun-Chang Lim
PURPOSE: The present study investigated the impact of 2 different suture techniques, the conventional crossed mattress suture (X suture) and the novel hidden X suture, for alveolar ridge preservation (ARP) with an open healing approach. METHODS: This study was a prospective randomized controlled clinical trial. Fourteen patients requiring extraction of the maxillary or mandibular posterior teeth were enrolled and allocated into 2 groups. After extraction, demineralized bovine bone matrix mixed with 10% collagen (DBBM-C) was grafted and the socket was covered by porcine collagen membrane in a double-layer fashion...
December 2016: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28027162/critical-issues-in-radiation-protection-knowledge-management-for-preserving-radiation-protection-research-and-development-capabilities
#3
Shaheen Azim Dewji
As a hub of domestic radiation protection capabilities, Oak Ridge National Laboratory's Center for Radiation Protection Knowledge has a mandate to develop and actuate a formal knowledge management (KM) effort. This KM approach exceeds recruitment and training efforts but focuses on formalized strategies for knowledge transfer from outgoing subject matter experts in radiation protection to incoming generations. It is envisioned that such an effort will provide one avenue for preserving domestic capabilities to support stakeholder needs in the federal government and the nuclear industry while continuing to lead and innovate in research and development on a global scale...
February 2017: Health Physics
https://www.readbyqxmd.com/read/28017140/molecular-cellular-and-pharmaceutical-aspects-of-filling-biomaterials-during-the-management-of-extraction-sockets
#4
Antonio Barone, Fortunato Alfonsia, Valentina Borgia, Giovanna Iezzi, Adriano Piattelli, Ugo Covani, Paolo Tonelli
After a tooth extraction both hard and soft tissues undergo dimensional changes. The use of a ridge preservation technique at the moment of the tooth extraction could help could help to prevent the volume loss, thus simplifying the subsequent prosthetic and/or implant therapy. Some studies were conducted in order to examine the biomaterials and the surgical technique used for ridge preservation procedures. Clinical, histological, volumetric and molecular outcomes were registered and analysed in different studies, in order to comprehend the biological events and the consequences of a socket preservation procedure and to allow the clinician to make the correct choice...
December 23, 2016: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/28000281/clinical-relevance-of-dimensional-bone-and-soft-tissue-alterations-post-extraction-in-esthetic-sites
#5
REVIEW
Vivianne Chappuis, Mauricio G Araújo, Daniel Buser
The key to achieving pleasing esthetics in implant dentistry is a thorough understanding of the biological processes driving dimensional bone and soft tissue alterations post-extraction. The aim of the present report is first to characterize the extent of bone and soft tissue changes post-extraction and second to identify potential factors influencing tissue preservation in order to facilitate successful treatment outcomes. The facial bone wall thickness has been identified as the most critical factor influencing bone resorption and can be used as a prognostic tool in order to identify sites at risk for future facial bone loss subsequent to tooth extraction...
February 2017: Periodontology 2000
https://www.readbyqxmd.com/read/27994892/natural-tooth-pontic-an-instant-esthetic-option-for-periodontally-compromised-teeth-a-case-series
#6
Rishi Raj, Kriti Mehrotra, Ipshita Narayan, Triveni Mavinakote Gowda, D S Mehta
Sudden tooth loss in the esthetic zone of the maxillary or mandibular anterior region can be due to trauma, periodontal disease, or endodontic failure. The treatment options for replacing the missing tooth can vary between removable prosthesis, tooth-supported prosthesis, and implant-supported prosthesis. Irrespective of the final treatment, the first line of management would be to provisionally restore the patient's esthetic appearance at the earliest, while functionally stabilizing the compromised arch. Using the patient's own natural tooth as a pontic offers the benefits of being the right size, shape, and color and provides exact repositioning in its original intraoral three-dimensional position...
2016: Case Reports in Dentistry
https://www.readbyqxmd.com/read/27990504/the-clinical-value-of-membranes-in-bone-augmentation-procedures-in-oral-implantology-%C3%A2-a-systematic-review-of-randomised-controlled-trials
#7
Brend P Jonker, Maarten W K Roeloffs, Eppo B Wolvius, Justin Pijpe
PURPOSE: To determine the clinical value of membranes in bone augmentation procedures such as ridge augmentation with simultaneous (one-stage) and delayed (two-stage) implant placement, sinus augmentation surgery, ridge preservation and immediate implant placement. MATERIALS AND METHODS: In April 2016, Embase, Medline (Ovid-SP), Cochrane Central, Web of Science and PubMed (as supplied by the publisher) were searched. There were no restrictions regarding language or publication date...
2016: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/27987520/-dental-implantation-and-soft-tissue-augmentation-after-ridge-preservation-in-a-molar-site-a-case-report
#8
L P Zhao, Y L Zhan, W J Hu, H J Wang, Y P Wei, M Zhen, T Xu, Y S Liu
For ideal implant rehabilitation, an adequate bone volume, optical implant position, and stable and healthy soft tissue are required. The reduction of alveolar bone and changes in its morphology subsequent to tooth extraction will result in insufficient amount of bone and adversely affect the ability to optimally place dental implants in edentulous sites. Preservation of alveolar bone volume through ridge preservation has been demonstrated to reduce the vertical and horizontal contraction of the alveolar bone crest after tooth extraction and reduce the need for additional bone augmentation procedures during implant placement...
December 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27977824/soft-tissue-closure-of-grafted-extraction-sockets-in-the-anterior-maxilla-a-modified-palatal-pedicle-connective-tissue-flap-technique
#9
Edgard El Chaar, Sarah Oshman, Giuseppe Cicero, Alejandro Castano, Cinzia Dinoi, Leila Soltani, Yoonjung Nicole Lee
Localized ridge resorption, the consequence of socket collapse, following tooth extraction in the anterior maxilla can adversely affect esthetics, function, and future implant placement. Immediate grafting of extraction sockets may help preserve natural ridge contours, but a lack of available soft tissue can compromise the final esthetic outcome. The presented modified rotated palatal pedicle connective tissue flap is a useful technique for simultaneous soft tissue coverage and augmentation of grafted sockets to improve esthetic outcome...
January 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/27891638/regenerative-potential-of-leucocyte-and-platelet-rich-fibrin-l-prf-part-b-sinus-floor-elevation-alveolar-ridge-preservation-and-implant-therapy-a-systematic-review
#10
REVIEW
Ana B Castro, Nastaran Meschi, Andy Temmerman, Nelson Pinto, Paul Lambrechts, Wim Teughels, Marc Quirynen
AIM: To analyse the effect of Leucocyte- and Platelet Rich Fibrin (L-PRF) on bone regeneration procedures and osseointegration. MATERIALS AND METHODS: An electronic and hand search was conducted in three databases (MEDLINE, EMBASE and Cochrane). Only randomised clinical trials, written in English where L-PRF was applied in bone regeneration and implant procedures, were selected. No follow-up restrictions were applied. RESULTS: A total of 14 articles were included and processed...
November 28, 2016: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/27891316/histologic-and-histomorphometric-evaluation-of-two-grafting-materials-cenobone-and-itb-mba-in-open-sinus-lift-surgery
#11
Babak Amoian, Maryam Seyedmajidi, Hamidreza Safipor, Sediqe Ebrahimipour
AIMS AND OBJECTIVES: Alveolar ridge reduction caused after tooth extraction can be minimized through ridge preservation and application of graft materials. The aim of this study was to compare the histologic and histomorphometric aspects of bone particulated allografts, Cenobone and ITB-MBA, in the reconstruction of vertical alveolar ridge after maxillary sinus augmentation. MATERIALS AND METHODS: This clinical trial was performed among 20 patients. The participants were randomly divided into two groups of 10 participants...
September 2016: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/27883211/tissue-changes-after-ridge-preservation-with-two-xenografts-preliminary-results-from-a-multicenter-randomized-controlled-clinical-trial
#12
Antonio Barone, Paolo Toti, Alessandro Quaranta, Fortunato Alfonsi, Alessandro Cucchi, Bruno Negri, Roberto Di Felice, Saverio Marchionni, Jose' Luis Calvo-Guirado, Ugo Covani, Ulf Nannmark
OBJECTIVES: To evaluate and compare clinical and histological changes after ridge preservation procedures with those of spontaneous healing. MATERIALS_AND_METHODS: Ninety patients were enrolled in the present randomized controlled clinical trial and underwent single-tooth extraction in the premolar/molar areas. Thirty sites were grafted with collagenated cortico-cancellous (coll), 30 sites with cortical (cort) porcine bone and 30 sites underwent natural healing. Primary (vertical and horizontal bone changes after 3-month) and secondary outcomes (histomorphometric after 3 months) were evaluated at implant placement...
November 24, 2016: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/27878769/to-what-extent-residual-alveolar-ridge-can-be-preserved-by-implant-a-systematic-review
#13
REVIEW
Ahmed Khalifa Khalifa, Masahiro Wada, Kazunori Ikebe, Yoshinobu Maeda
BACKGROUND: It has been reported that the load for (or to) implant-supported restoration may lead to bone remodeling as bone resorption and/or formation. While many authors supported the process of bone resorption, others elaborated bone apposition and increasing bone density close and remote to implant body (or fixture). This may suggest the role of the implant to reserve alveolar ridge from physiologic/pathologic resorption. The aim of this systematic review was to predict to how extend dental implants can preserve the residual alveolar ridge based on previous clinical investigations...
December 2016: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/27843719/cranial-bone-histology-of-metoposaurus-krasiejowensis-amphibia-temnospondyli-from-the-late-triassic-of-poland
#14
Kamil Gruntmejer, Dorota Konietzko-Meier, Adam Bodzioch
In this study, 21 skull bones of Metoposaurus krasiejowensis from the Late Triassic of Poland were investigated histologically. Dermal bones show a diploë structure, with an ornamented external surface. The ridges consist of mostly well vascularized parallel-fibered bone; the valleys are built of an avascular layer of lamellar bone. The thick middle region consists of cancellous bone, with varying porosity. The thin and less vascularized internal cortex consists of parallel-fibered bone. The numerous Sharpey's fibers and ISF are present in all bones...
2016: PeerJ
https://www.readbyqxmd.com/read/27824054/record-of-massive-upwellings-from-the-pacific-large-low-shear-velocity-province
#15
Pilar Madrigal, Esteban Gazel, Kennet E Flores, Michael Bizimis, Brian Jicha
Large igneous provinces, as the surface expression of deep mantle processes, play a key role in the evolution of the planet. Here we analyse the geochemical record and timing of the Pacific Ocean Large Igneous Provinces and preserved accreted terranes to reconstruct the history of pulses of mantle plume upwellings and their relation with a deep-rooted source like the Pacific large low-shear velocity Province during the Mid-Jurassic to Upper Cretaceous. Petrological modelling and geochemical data suggest the need of interaction between these deep-rooted upwellings and mid-ocean ridges in pulses separated by ∼10-20 Ma, to generate the massive volumes of melt preserved today as oceanic plateaus...
November 8, 2016: Nature Communications
https://www.readbyqxmd.com/read/27804201/qualitative-evaluation-of-crystal-vue-rendering-technology-in-the-assessment-of-fetal-lip-and-palate
#16
Authors Andrea Dall'Asta, Gowrishankar Paramasivam, Christoph Lees
Facial clefts of the lip and alveolar ridge are usually evaluated with conventional ultrasound imaging. However, assessment of the extension of the defect into the palate and the detection of isolated clefts of the secondary palate is often not always possible due to poor acoustic windows. Nevertheless, knowledge of the extent of the cleft has significant prognostic implications in terms of pregnancy choices, surgical and functional outcome. Newly developed three-dimensional (3D) technologies offer the opportunity to develop novel imaging techniques for the evaluation of the secondary palate, although these have not been objectively compared...
November 1, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27796562/myxobolus-axelrodi-n-sp-myxosporea-myxobolidae-a-parasite-infecting-the-brain-and-retinas-of-the-cardinal-tetra-paracheirodon-axelrodi-teleostei-characidae
#17
Alvin C Camus, Jennifer A Dill, Thomas G Rosser, Linda M Pote, Matt J Griffin
An investigation of mortalities in a group of cardinal tetras Paracheirodon axelrodi Meyers, 1936, a popular ornamental fish, revealed myxozoan parasites in ventricles of the brains in 3/10 fish and the ocular retina of a fourth. Parasite impacts were unclear, as additional histopathological findings were present, including bacterial dermatitis and meningitis. Ethanol-preserved specimens pooled from multiple fish were used for morphological characterization of myxospores. Elongate, teardrop myxospores were 20...
January 2017: Parasitology Research
https://www.readbyqxmd.com/read/27788625/evaluation-of-healing-at-molar-extraction-sites-with-and-without-ridge-preservation-a-randomized-controlled-clinical-trial
#18
Christopher J Walker, Thomas J Prihoda, Brian L Mealey, David J Lasho, Marcel Noujeim, Guy Huynh-Ba
BACKGROUND: To date, limited evidence is available specifically evaluating ridge preservation (RP) and implant placement in molar sites. The primary aim of this study was to radiographically compare alveolar ridge changes with and without RP with cone-beam computed tomography (CBCT). METHODS: This parallel, two-arm RCT included forty patients evenly distributed between two treatment groups. Following molar extraction, sites were allowed to heal naturally or received RP with freeze-dried bone allograft covered by a non-resorbable dense polytetrafluoroethylene (dPTFE) membrane...
October 27, 2016: Journal of Periodontology
https://www.readbyqxmd.com/read/27765341/unusual-presentation-of-squamous-cell-carcinoma-of-the-maxilla-in-an-8-year-old-child
#19
Marco A O Magalhaes, Gino R Somers, Paula Sikorski, Vito Forte, Moustafa Abouzgia, Edward Barrett, Grace Bradley
Oral squamous cell carcinoma (OSCC) is extremely rare in patients younger than 20 years of age. We present here a case of OSCC of the maxillary alveolar ridge in an otherwise healthy 8-year-old patient. The clinicohistologic presentation was not typical for mucosal SCC, and the possibility of an intrabony origin from the odontogenic epithelium was considered. The patient was treated with surgical resection, and treatment decisions were made with consideration of the need for eradication of tumor as well as tissue preservation to allow normal growth and development...
November 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/27740654/extraction-socket-management-with-buccal-plate-expansion-preliminary-results-of-a-novel-technique
#20
Alberto Fernandez Ayora, Oscar González-Martín, Eric Rompen, Geoffrey Lecloux, France Lambert
The primary objective of this pilot study was to evaluate a new socket preservation technique involving the intentional expansion of the extraction socket buccal plate using a flapless internal corticotomy and biomaterials. A total of 11 patients requiring tooth extraction were enrolled in this study. The aim of this technique was to maintain or improve the hard and soft tissue contour of the ridge after tooth extraction. All surgical sites healed uneventfully. Significant alveolar bone dimension changes were observed in the coronal region of the ridge (-1...
November 2016: International Journal of Periodontics & Restorative Dentistry
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