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Ridge preservation

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https://www.readbyqxmd.com/read/29140383/a-randomized-split-mouth-clinical-trial-on-effectiveness-of-amnion-chorion-membranes-in-alveolar-ridge-preservation-a-clinical-radiologic-and-morphometric-study
#1
Muyeenul Hassan, Sivaraman Prakasam, Carol Bain, Ahmed Ghoneima, Sean Shih-Yao Liu
PURPOSE: Recent case reports suggest that amnion-chorion membranes (ACM) and dense polytetrafluoroethylene membranes (dPTFE) can be left exposed during ridge preservation. The aim of this study was to compare the effectiveness of these membranes in ridge preservation, particularly when they are intentionally left exposed. MATERIALS AND METHODS: A split-mouth, single-blind, randomized trial design was used to compare treatments with the two membranes in 22 nonmolar sites on the same arch...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29120890/validity-of-collagen-plugs-for-ridge-preservation-in-a-canine-model
#2
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/29095788/is-bone-graft-or-guided-bone-regeneration-needed-when-placing-immediate-dental-implants-a-systematic-review
#3
Hania AlKudmani, Reham Al Jasser, Sebastiano Andreana
AIMS: To systematically review the effect and type of bone graft and guided bone regeneration around immediate implants on hard and soft tissue changes. METHODS: Three electronic databases were searched up to June 2015. Outcomes consisted of hard and soft tissue dimensional changes. RESULTS: Eight studies were included according to inclusion criteria. Immediate implants with bone grafting had superior soft tissue stability and preserved horizontal ridge dimension and buccal plate thickness, when compared to no grafting...
November 1, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/29058731/self-spreading-of-the-wetting-ridge-during-stick-slip-on-a-viscoelastic-surface
#4
S J Park, J B Bostwick, V De Andrade, J H Je
Dynamic wetting behaviors on soft solids are important to interpret complex biological processes from cell-substrate interactions. Despite intensive research studies over the past half-century, the underlying mechanisms of spreading behaviors are not clearly understood. The most interesting feature of wetting on soft matter is the formation of a "wetting ridge", a surface deformation by a competition between elasticity and capillarity. Dynamics of the wetting ridge formed at the three-phase contact line underlies the dynamic wetting behaviors, but remains largely unexplored mostly due to limitations in indirect observation...
November 15, 2017: Soft Matter
https://www.readbyqxmd.com/read/29042746/erratum-comparative-alveolar-ridge-preservation-using-allogenous-tooth-graft-versus-free-dried-bone-allograft-a-randomized-controlled-prospective-clinical-pilot-study
#5
(no author information available yet)
[This corrects the article on p. 211 in vol. 8, PMID: 28839405.].
July 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29023617/socket-shield-technique-for-implant-placement-in-the-esthetic-zone-a-case-report
#6
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
https://www.readbyqxmd.com/read/29023609/thickness-of-the-buccal-plate-in-posterior-teeth-a-prospective-cone-beam-computed-tomography-study
#7
Kayleigh Eaves Temple, John Schoolfield, Marcel E Noujeim, Guy Huynh-Ba, David J Lasho, Brian L Mealey
Buccal plate thickness is an important clinical parameter for postextraction implant treatment planning. The purpose of this study was to assess buccal plate thickness of the posterior maxilla and mandible using cone beam computed tomography (CBCT). A total of 265 patients and 934 teeth met the inclusion criteria for this study. CBCT volumes were taken and aligned for measurement at the ideal midsagittal cross-section. Buccal plate thickness was measured at 1, 3, and 5 mm apical to the alveolar crest. The frequency of thick (≥ 1 mm), thin (< 1 mm), and radiographic absence of the buccal plate were determined...
November 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28983533/posterior-indirect-adhesive-restorations-piar-preparation-designs-and-adhesthetics-clinical-protocol
#8
Federico Ferraris
Posterior indirect adhesive restorations (PIAR) are very common nowadays in clinical practice. The indirect approach is often indicated by a need for cuspal coverage (one or more cusps). With the adhesthetics protocol, the first step is to perform a cavity analysis evaluating the resistance of the tooth after restoration. The structures to be evaluated are, in sequence, the interaxial dentin, ridges, roof of the pulp chamber, and cusps. To improve the strength, the cusps should be covered, when required. The build-up for PIAR is performed with an adhesive technique, and, if possible, with low-shrinkage materials...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28975794/development-of-well-preserved-substrate-versatile-latent-fingerprints-by-aggregation-induced-enhanced-emission-active-conjugated-polyelectrolyte
#9
Akhtar Hussain Malik, Anamika Kalita, Parameswar Krishnan Iyer
The development of highly efficient latent fingerprint (LFP) technology remains extremely vital for forensic and criminal investigations. In this contribution, a straightforward, rapid, and cost-effective method has been established for the quick development of well-preserved latent fingerprint on multiple substrates, including plastic, glass, aluminum foil, metallic surfaces, and so forth, without any additional treatment, based on aggregation-induced enhanced emission-active conjugated polyelectrolyte (CPE) 3,3'-((2-(4-(1,2-diphenyl-2-(p-tolyl)vinyl)phenyl)-7-(7-methylbenzo[c][1,2,5]thiadiazol-4-yl)-9H-fluorene-9,9-diyl)bis(hexane-6,1-diyl))bis(1-methyl-1H-imidazol-3-ium) bromide, revealing clearly the third-level details (ridges, bifurcations, and pores) with high selectivity, high contrast, and no background interference even by blood stains, confirming the ability of the proposed technique for LFP detection with high resolution...
October 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28944355/wide-diameter-immediate-post-extractive-implants-vs-delayed-placement-of-normal-diameter-implants-in-preserved-sockets-in-the-molar-region-1-year-post-loading-outcome-of-a-randomised-controlled-trial
#10
Vittorio Checchi, Pietro Felice, Giovanni Zucchelli, Carlo Barausse, Maurizio Piattelli, Roberto Pistilli, Giovanni Grandi, Marco Esposito
PURPOSE: To compare the effectiveness of 6.0 to 8.0 mm-wide diameter implants, placed immediately after tooth extraction, with conventional 4.0 or 5.0 mm diameter implants placed in a preserved socket after a 4-month period of healing in the molar region. MATERIALS AND METHODS: Just after extraction of one or two molar teeth, and with no vertical loss of the buccal bone in relation to the palatal wall, 100 patients requiring immediate post-extractive implants were randomly allocated to immediate placement of one or two 6...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28936043/the-potential-of-mangosteen-garcinia-mangostana-peel-extract-combined-with-demineralized-freeze-dried-bovine-bone-xenograft-to-reduce-ridge-resorption-and-alveolar-bone-regeneration-in-preserving-the-tooth-extraction-socket
#11
Utari Kresnoadi, Maretaningtias Dwi Ariani, Eha Djulaeha, Nike Hendrijantini
BACKGROUND: Following the extraction of a tooth, bone resorption can cause significant problems for a subsequent denture implant and restorative dentistry. Thus, the tooth extraction socket needs to be maintained to reduce the chance of any alveolar ridge bone resorption. OBJECTIVE: The objective of this study is to determine whether the administration of mangosteen peel extracts (MPEs), combined with demineralized freeze-dried bovine bone xenograft (DFBBX) materials for tooth extraction socket preservation, could potentially reduce inflammation by decreased the expression of nuclear factor κβ (NfKb) and receptor activator of nuclear factor-κβ ligand (RANKL), to inhibit alveolar bone resorption, and increased of bone morphogenetic protein-2 (BMP2) expressions to accelerate alveolar bone regeneration...
July 2017: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/28932045/nonmetric-traits-of-permanent-posterior-teeth-in-kerala-population-a-forensic-overview
#12
Tibin K Baby, S Sunil, Sharlene Sara Babu
INTRODUCTION: Dental morphology is a highly heritable characteristic which is stable with time and has a fairly high state of preservation. Nonmetric dental traits have crucial role in ethnic classifications of a population that helps in forensic racial identification purposes. AIMS AND OBJECTIVES: To determine the frequency and variability of possible nonmetric tooth traits using extracted permanent posterior teeth from Kerala population for discerning racial ethnicity...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28930470/structure-related-roles-for-the-conservation-of-the-hiv-1-fusion-peptide-sequence-revealed-by-nuclear-magnetic-resonance
#13
COMPARATIVE STUDY
Soraya Serrano, Nerea Huarte, Edurne Rujas, David Andreu, José L Nieva, María Angeles Jiménez
Despite extensive characterization of the human immunodeficiency virus type 1 (HIV-1) hydrophobic fusion peptide (FP), the structure-function relationships underlying its extraordinary degree of conservation remain poorly understood. Specifically, the fact that the tandem repeat of the FLGFLG tripeptide is absolutely conserved suggests that high hydrophobicity may not suffice to unleash FP function. Here, we have compared the nuclear magnetic resonance (NMR) structures adopted in nonpolar media by two FP surrogates, wtFP-tag and scrFP-tag, which had equal hydrophobicity but contained wild-type and scrambled core sequences LFLGFLG and FGLLGFL, respectively...
October 17, 2017: Biochemistry
https://www.readbyqxmd.com/read/28905475/evaluation-of-volumetric-dimensional-changes-in-posterior-extraction-sites-with-and-without-arp-using-a-novel-imaging-device
#14
Carolina Sbordone, Paolo Toti, Ranieri Martuscelli, Franco Guidetti, Massimo Porzio, Ludovico Sbordone
BACKGROUND: Alveolar ridge volume loss may be minimized when postextraction sockets are filled by bone substitutes. PURPOSE: The aim of the study was to measure the effect of alveolar ridge preservation (ARP) in maintaining the external contour of the ridge after fresh socket grafting with or without particulate anorganic bovine bone mineral (BBM) and resorbable barrier covering. MATERIALS AND METHODS: In the present controlled study, patients subjected to single-tooth extraction were allocated to 2 groups: postextraction sockets grafted with bovine bone mineral (bbm), and naturally healing sockets (nat)...
September 14, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28895779/combination-of-bone-graft-and-resorbable-membrane-for-alveolar-ridge-preservation-a-systematic-review-meta-analysis-and-trial-sequential-analysis
#15
Giuseppe Troiano, Khrystyna Zhurakivska, Lorenzo Lo Muzio, Luigi Laino, Marco Cicciù, Lucio Lo Russo
INTRODUCTION: Alveolar ridge preservation (ARP) techniques are aimed to reduce the resorption after tooth extraction. The combination of a graft material covered with a resorbable membrane represent one of the most common strategies performed in the clinical practice. The aim of this systematic review was to analyse evidence regarding potential benefits of ARP procedures performed with allogenic/xenogenic grafts in combination with a resorbable membrane coverage in comparison to a spontaneous healing...
September 12, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28894668/mucosal-perfusion-preservation-by-a-novel-shapeable-tissue-expander-for-oral-reconstruction
#16
Daria Barwinska, John Garner, Darrell D Davidson, Todd G Cook, George J Eckert, Sunil S Tholpady, Keith L March, Kinam Park, Clark T Barco
BACKGROUND: There are few methods for expanding oral mucosa, and these often cause complications such as tissue necrosis and expander eruption. This study examines mucosal blood perfusion following insertion of a novel shapeable hydrogel tissue expander (HTE). The canine model used subgingival insertion of HTE following tooth extraction and alveolar bone reduction. The primary goal of this study was to gain understanding of epithelial perfusion and reparative responses of gingival mucosa during HTE expansion...
August 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28885317/ridge-preservation-after-maxillary-third-molar-extraction-using-30-porosity-plga-ha-%C3%AE-tcp-scaffolds-with-and-without-simvastatin-a-pilot-randomized-controlled-clinical-trial
#17
Miguel Noronha Oliveira, Levy Hermes Rau, Aline Marodin, Márcio Corrêa, Letícia Ruhland Corrêa, Aguedo Aragones, Ricardo de Souza Magini
OBJECTIVE: To evaluate clinically and radiographically, in humans, the healing of maxillary third molars postextraction sockets after application of different ridge preservation techniques 3 months after tooth extraction. MATERIALS AND METHODS: Twenty-six sockets (13 patients) were randomly assigned to 4 treatment modalities: deproteinized bovine bone mineral with 10% collagen (DBBM-C), poly(D,L-lactide-co-glycolide) with hydroxyapatite/β-TCP scaffold (PLGA/HA), PLGA/HA/β-TCP with 2...
September 6, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28862584/a-root-volume-study-of-the-adult-dentition-for-ridge-preservation-purposes
#18
John Thousand, Joseph Datar, Kerri Font, Charles A Powell
Ridge preservation has become a common practice to preserve the remaining alveolar bone volume after tooth extraction. The most common volume of graft material in commercially available vials is between 0.50 and 1.00 mL. The clinician must estimate how much grafting material is needed after extracting a tooth. The aim of this study is to provide the clinician with a volumetric guide for selection of graft material for ridge preservation after tooth extraction. Fifteen sets of permanent teeth, each representing a full adult dentition excluding the third molars, were selected at random from a collection of extracted teeth...
September 2017: General Dentistry
https://www.readbyqxmd.com/read/28862469/clinical-applications-of-an-atraumatic-osteotome
#19
Benjamin A Baptist
Osteotomes have long been used in the formation of osteotomies for the placement of dental implants. Their ability to manipulate and compress existing bone without generating heat makes them particularly useful for expanding narrow ridges, elevating delicate sinus membrane, and increasing relative bone density around the osteotomy. Common concerns with these devices include the traumatic force communicated to the patient during use and difficulty controlling force vectors. A new type of osteotome has been developed that is designed to enable the clinician to eliminate the concerns found with traditional osteotomes yet it preserves the best qualities and functionality of this class of device...
September 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28861284/alveolar-socket-preservation-with-demineralised-bovine-bone-mineral-and-a-collagen-matrix
#20
Carlo Maiorana, Pier Paolo Poli, Matteo Deflorian, Tiziano Testori, Federico Mandelli, Heiner Nagursky, Raffaele Vinci
PURPOSE: The aim of the present study was to evaluate the healing of post-extraction sockets following alveolar ridge preservation clinically, radiologically, and histologically. METHODS: Overall, 7 extraction sockets in 7 patients were grafted with demineralised bovine bone mineral and covered with a porcine-derived non-crosslinked collagen matrix (CM). Soft tissue healing was clinically evaluated on the basis of a specific healing index. Horizontal and vertical ridge dimensional changes were assessed clinically and radiographically at baseline and 6 months after implant placement...
August 2017: Journal of Periodontal & Implant Science
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