keyword
https://read.qxmd.com/read/32769282/direct-maxillary-sinus-floor-augmentation-and-simultaneous-implant-placement-for-rehabilitation-of-the-severely-resorbed-posterior-maxilla-a-prospective-clinical-study
#21
Pulkit Khandelwal, Vikas Dhupar, Francis Akkara, Neha Hajira
Aims and Objectives: The aim of this prospective clinical study was to evaluate the success of one-stage direct (lateral) sinus lift procedure in severely atrophic posterior maxilla. Materials and Methods: One-stage direct (lateral) sinus lift procedure was carried out at 15 sites in 13 patients. All patients included in the study presented with partially edentulous posterior maxilla with one or more missing teeth and residual bone height less than 5 mm. Three months after surgery, patients were evaluated to access increase in residual bone height, density of new bone formed and implant stability...
May 2020: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://read.qxmd.com/read/32743707/involvement-of-the-maxillary-sinus-ostium-mso-in-the-edematous-processes-after-sinus-floor-augmentation-a-cone-beam-computed-tomographic-study
#22
Shigeru Sakuma, Mauro Ferri, Hideki Imai, Natalia Fortich Mesa, Daniel José Blanco Victorio, Karol Alí Apaza Alccayhuaman, Daniele Botticelli
BACKGROUND: After sinus floor augmentation, a thickening of the sinus mucosa has been described. The aim of the present study was to evaluate the involvement of the maxillary sinus ostium in the edematous processes after a sinus floor augmentation procedure. METHODS: Seventy-two cone-beam computerized tomographies (CBSTs) were taken before sinus floor augmentation and after 1 week and 9 months from surgery and analyses. Sinus mucosa thickness and area, ostium diameter and patency, and extension of the post-surgical transient mucosal thickening in relation to the ostium were evaluated on the CBCTs for all three periods...
September 30, 2020: International Journal of Implant Dentistry
https://read.qxmd.com/read/32724935/graftless-maxillary-sinus-floor-augmentation-with-simultaneous-porcine-bone-layer-insertion-a-1-to-5-year-follow-up-study
#23
Roberto Luongo, Nicola Sgaramella, Tonino Traini, Calogero Bugea
PURPOSE: Evidence suggests that maxillary sinus floor augmentation via a lateral approach can be performed without positioning a bone graft inside, when one or more implants can be placed simultaneously. The aim of this study was to test if the placement of a porcine cortical bone layer underneath the sinus membrane can increase bone formation and implant stability. MATERIALS AND METHODS: One hundred seventy-two patients with posterior maxilla atrophy needing implant rehabilitation were selected...
July 2020: International Journal of Oral & Maxillofacial Implants
https://read.qxmd.com/read/32724927/retrospective-analysis-of-zygomatic-implants-for-maxillary-prosthetic-rehabilitation
#24
Mustafa Yalçın, Serhat Can, Mert Akbaş, Gühan Dergin, Hasan Garip, Barış Altuğ Aydil, Altan Varol
PURPOSE: The aim of this study was to evaluate 141 zygomatic implants for the reconstruction of severely atrophic maxillae. MATERIALS AND METHODS: In this retrospective case series study, zygomatic implants were placed under general anesthesia. Inclusion criteria were as follows: ASA I or ASA II, age older than 18 years, inadequate bone for restoration with conventional implants, alternative augmentation procedures considered either inappropriate or contraindicated, absence of a medical condition related to implant failure, and providing written consent...
July 2020: International Journal of Oral & Maxillofacial Implants
https://read.qxmd.com/read/32724925/histologic-and-micro-ct-analyses-at-implants-placed-immediately-after-maxillary-sinus-elevation-using-large-or-small-xenograft-granules-an-experimental-study-in-rabbits
#25
Katsuhiko Masuda, Erick Ricardo Silva, Karol Al Apaza Alccayhuaman, Daniele Botticelli, Samuel Porfirio Xavier
PURPOSE: To compare the osseointegration at the portion of the implant within the elevated space after sinus elevation using different sizes of xenograft. MATERIALS AND METHODS: Eighteen New Zealand rabbits were selected, antrostomies were prepared bilaterally through the nasal dorsum, and the sinus mucosa was elevated. Deproteinized bovine bone mineral with granules of either 1 to 2 mm (large sites) or 0.250 to 1.0 mm (small sites) were randomly used to fill the elevated space of the two sinuses...
July 2020: International Journal of Oral & Maxillofacial Implants
https://read.qxmd.com/read/32716570/remodelling-of-sinus-bone-grafts-according-to-the-distance-from-the-native-bone-a-histomorphometric-analysis
#26
Tulio Bonna Pignaton, Rubens Spin-Neto, Carlos Eduardo de Almeida Ferreira, Carolina Borges Martinelli, Guilherme José Pimentel Lopes de Oliveira, Elcio Marcantonio
OBJECTIVES: To evaluate graft remodelling according to the distance from the native bone in maxillary sinuses grafted with anorganic bovine bone (ABB). MATERIAL AND METHODS: Bilateral sinus grafting was performed in twenty patients with residual bone height <5 mm before implant placement. After 8 months, biopsy samples were harvested, and histomorphometric analysis was performed to examine bone formation according to the distance (in mm) from the native bone (sinus floor)...
July 27, 2020: Clinical Oral Implants Research
https://read.qxmd.com/read/32715479/the-vertical-course-of-bone-regeneration-in-maxillary-sinus-floor-augmentations-a-histomorphometric-analysis-of-human-biopsies
#27
Florian Beck, Karoline Maria Reich, Stefan Lettner, Patrick Heimel, Stefan Tangl, Heinz Redl, Christian Ulm
BACKGROUND: Maxillary sinus floor augmentation (MSFA) is a well-established and predictable augmentation method in severely resorbed maxillae. However, data on the vertical course of bone graft consolidation within the maxillary sinus are rare. The aim of the present study was to quantify the vertical distribution of new bone formation in MSFA and to characterize the vertical gradient of bone graft consolidation. MATERIAL AND METHODS: 85 human sinus biopsies were harvested 6±1 months after MSFA...
July 27, 2020: Journal of Periodontology
https://read.qxmd.com/read/32663302/complication-and-salvage-of-sinus-floor-elevation-in-the-maxillary-sinus-with-asymptomatic-and-non-calcified-fungus-colonization-a-case-report
#28
Won-Bae Park, Young-Jin Kim, Jung Soo Park, Ji-Young Han, Hyun-Chang Lim
The present study aimed to report: i) the sequela of sinus floor elevation (SFE) in the posterior maxilla with severe sinus membrane thickening and an undiagnosed fungal colonization but a patent ostium; and ii) a treatment course without implant removal. A 73-year-old woman underwent dental implant placement in the left posterior maxillary area. Although the patient was asymptomatic, severe sinus membrane thickening with Haller cells was observed on a radiographic examination, but the ostium was patent. After SFE and simultaneous implant placement, the patient developed acute sinusitis and was referred to an otolaryngologist...
July 14, 2020: Journal of Oral Implantology
https://read.qxmd.com/read/32663265/osseodensified-crestal-sinus-window-augmentation-an-alternative-procedure-to-the-lateral-window-technique
#29
Nilesh Salgar
A novel minimally invasive technique, osseodensification, is proposed to facilitate maxillary sinus bone graft augmentation. The Osseodensified Crestal Window overcomes the previous limitations of traditional crestal approaches with respect to residual bone height (RBH) of ≤ 1.5 mm as well as vertical height of augmentation (> 10 mm). Three patients, healthy and non-smoking, with three distinct and difficult clinical situations requiring sinus augmentation and having a maximum of 1.5 mm RBH (0.4 mm - 1...
July 14, 2020: Journal of Oral Implantology
https://read.qxmd.com/read/32662834/the-effectiveness-of-l-prf-in-the-treatment-of-schneiderian-membrane-large-perforations-long-term-follow-up-of-a-case-series
#30
Carolina Mendonça de Almeida Malzoni, Lelis Gustavo Nicoli, Gustavo da Col Dos Santos Pinto, Claudio Marcantonio, Suzana Cristina Pigossi, Vinicius Aparecido Zotesso, Mario Henrique Arruda Verzola, Victor Gonçalves, Elcio Marcantonio, Daniela Leal Zandim-Barcelos
The perforation of the Schneiderian membrane (SM) is a common surgical complication during the sinus floor augmentation procedure (SFA). Different approaches have been proposed to close completely the SM perforation and to avoid graft contamination or migration and postoperative sinus infection. In this context, the leukocyte and platelet-rich fibrin (L-PRF) membranes have been proposed to SM perforation treatment due to its natural adhesive property and resistance. Thus, these case series aim to evaluate the effectiveness of platelet rich fibrin (L-PRF) in the treatment of SM large perforations during SFA...
July 13, 2020: Journal of Oral Implantology
https://read.qxmd.com/read/32655780/endothelial-progenitor-cells-with-stem-cells-enhance-osteogenic-efficacy
#31
Qiong Li, Tao Yu, Fang Wang, Xin Liu, Zuolin Wang
BACKGROUND: Mesenchymal stem cell (MSC)-based bone tissue engineering is a promising treatment option for maxillary sinus augmentation. Rapid vascularization is necessary to enhance the osteoinductive efficacy and prevent necrosis of the tissue-engineered bone. This study investigated whether the co-autotransplantation of endothelial progenitor cells (EPCs) could significantly enhance the in vivo osteogenic efficacy of MSCs and prevent necrosis of the tissue-engineered bone in a maxillary sinus augmentation model in dogs...
2020: American Journal of Translational Research
https://read.qxmd.com/read/32652610/feasibility-and-needs-for-simultaneous-or-staged-bone-augmentation-to-place-prosthetically-guided-dental-implants-after-extraction-or-exfoliation-of-first-molars-due-to-severe-periodontitis
#32
Melissa Rachel Fok, George Pelekos, Maurizio S Tonetti
BACKGROUND: The aim of this study was to retrospectively assess bone volumes, healed ridge topography and possibility to plan prosthetically guided implants (PGI) at least 6 months after extraction or exfoliation of first molars as a consequence of terminal periodontitis (EEFMP). MATERIAL AND METHODS: 45 subjects with Stage III-IV periodontitis providing 74 extraction sites (maxillary=51 and mandibular=23) were included. The degree of residual periodontal support on each root was assessed by combining periodontal and radiographic data...
July 11, 2020: Journal of Clinical Periodontology
https://read.qxmd.com/read/32651646/effect-of-bone-quality-and-quantity-on-the-primary-stability-of-dental-implants-in-a-simulated-bicortical-placement
#33
Stefan Rues, Marc Schmitter, Stefanie Kappel, Robert Sonntag, Jan Philippe Kretzer, Jan Nadorf
OBJECTIVES: Conventional dental implants inserted in the molar region of the maxilla will reach into the sinus maxillaris when alveolar ridge height is limited. When surgery is performed without prior augmentation of the sinus floor, primary stability of the implant is important for successful osseointegration. This study aimed at identifying the impact of bone quality and quantity at the implantation site on primary implant stability of a simulated bicortical placement. MATERIALS AND METHODS: In our in vitro measurements, bone mineral density, total bone thickness and overall cortical bone thickness were assessed by micro-computed tomography (μCT) of pig scapulae, which resembled well the bicortical situation found in human patients...
July 10, 2020: Clinical Oral Investigations
https://read.qxmd.com/read/32648123/evaluation-of-maxillary-sinus-floor-augmentation-with-the-crestal-approach-and-beta-tricalcium-phosphate-a-cone-beam-computed-tomography-3-to-9-year-follow-up
#34
Yoko Oba, Noriko Tachikawa, Motohiro Munakata, Tsuneji Okada, Shohei Kasugai
BACKGROUND: We performed maxillary sinus floor augmentation using the crestal approach and beta-tricalcium phosphate (β-TCP) and a long-term evaluation using cone-beam computed tomography (CBCT). METHODS: Twenty-three patients (30 implants) underwent sinus floor augmentation using the osteotome technique. Subjects underwent CBCT imaging before surgery, immediately after surgery, and at follow-up (≥ 3 years after surgery). We measured the changes in height of the augmented sinus floor (SL), the augmented bone above apex of the implant (BH), and the implant length that projected into the sinus (IL)...
July 10, 2020: International Journal of Implant Dentistry
https://read.qxmd.com/read/32626762/the-effect-of-autologous-platelet-concentrates-on-maxillary-sinus-augmentation-a-meta-analysis-of-randomized-controlled-trials-and-systematic-review
#35
REVIEW
Yusheng Meng, Xingxing Huang, Min Wu, Xiuqiao Yang, Yun Liu
Introduction: To assess the efficacy of the autologous platelet concentrates (APCs) combined with autologous bone or bone substitute for the maxillary sinus floor lifting by a meta-analysis. Materials and Methods: Electronic databases (PUBMED, Web of Science, EMBASE through OVID, and Cochrane Library) were searched until Dec 31, 2019, and only randomized controlled trials (RCTs) in English were identified. Outcome variables included histologic evaluation, the implant stability quotient values, and radiographic evaluation...
2020: BioMed Research International
https://read.qxmd.com/read/32618176/histomorphometric-evaluation-of-bovine-bone-and-equine-bone-matrix-in-maxillary-sinus-floor-augmentation-a-systematic-review
#36
L Mancini, C Manilia, F Casalena, M Capogreco, G Marzo, E Marchetti
The aim of this study was to evaluate the efficiency of bovine and equine bone substitute materials used in sinus augmentation techniques. The research protocol was carried out using the PubMed database, including articles from October 2019 until February 2020 and those in English only. The search on PubMed (MED-LINE) was carried out with the following keywords: sinus augmentation OR sinus lift AND bovine bone graft OR equine bone matrix. The articles identified included randomised clinical trials, cross-sectional studies and case series...
May 2020: Journal of Biological Regulators and Homeostatic Agents
https://read.qxmd.com/read/32618100/effectiveness-of-strontium-doped-brushite-bovine-derived-hydroxyapatite-and-synthetic-hydroxyapatite-in-rabbit-sinus-augmentation-with-simultaneous-implant-installation
#37
Da-Zhuang Lu, Yan-Bo Zhang, Wei Dong, Wen-Juan Bi, Xiao-Jie Feng, Li-Ming Wen, Hong Sun, Hui Chen, Lu-Yang Zang, Meng-Chun Qi
Various bone substitutes have been applied in sinus augmentation (SA) to overcome insufficient bone height at the posterior maxilla region caused by pneumatized sinus and severe alveolar bone resorption after teeth loss. However, their effectiveness in SA needs to be further elucidated. In this study, strontium-doped brushite (Sr-DCPD), a new bone substitute, together with bovine-derived hydroxyapatite (bHA) and synthetic hydroxyapatite (sHA) was used in rabbit maxillary SA with simultaneous implant installation...
July 3, 2020: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://read.qxmd.com/read/32596764/efficacy-of-stem-cell-allograft-in-maxillary-sinus-bone-regeneration-a-randomized-controlled-clinical-and-blinded-histomorphometric-study
#38
Josh Whitt, Mohanad Al-Sabbagh, Dolphus Dawson, Ehab Shehata, Moly Housley-Smith, Alejandro Tezanos, Ahmad Kutkut
PURPOSE: This study aimed to evaluate the quality and quantity of newly generated bone in the maxillary sinus grafted with stem cell-based allograft material. METHODS: This study was a single site, prospective, blinded, randomized, and controlled clinical trial. Eleven subjects with 18 edentulous posterior maxillary sites requiring sinus augmentation for delayed implant placement using a lateral window approach were enrolled. At the time of sinus augmentation, test sinus was grafted with stem cell-based allograft (Osteocel Plus; NuVasive Therapeutics), while the control sinus was grafted with conventional cortico-cancellous allograft (alloOss; ACE Surgical)...
June 29, 2020: International Journal of Implant Dentistry
https://read.qxmd.com/read/32588341/promoting-osseointegration-of-dental-implants-in-dog-maxillary-sinus-floor-augmentation-using-dentin-matrix-protein-1-transduced-bone-marrow-stem-cells
#39
Dong Ma, Yuanyin Wang, Yongxiang Chen, Gang Yang, Xin Liu
BACKGROUND: Beta-tricalcium phosphate (β-TCP) has been employed successfully as a synthetic graft material in maxillary sinus floor augmentation (MSFA) for placing dental implants. However, the lack of osteogenic and osteoinductive properties of this substitute invariably results in bone regeneration of low quality and quantity. The purpose of this study was to determine whether loading dentin matrix protein-1 (DMP1) gene-modified bone marrow mesenchymal stem cells (BMSCs) onto β-TCP promoted bone regeneration and osteointegration of dental implants in MSFA of dogs...
June 25, 2020: Tissue Engineering and Regenerative Medicine
https://read.qxmd.com/read/32551715/an-atraumatic-approach-to-internal-sinus-lifting-the-motorized-expansion-drill-technique
#40
Michael K Sonick, Debby Hwang, Rui Ma
This case series demonstrates internal maxillary sinus elevation and placement of 37 posterior implants in 34 private practice patients using sequential motorized expander burs exclusively to infracture the sinus border and embed bone graft material (allograft or xenograft) for vertical augmentation. With this technique, manual osteotome/malleting was completely avoided, improving surgical control and the patient experience. Sinus borders were lifted by a mean of 3.92 mm in ridges that had an average residual height of 7...
June 2020: Compendium of Continuing Education in Dentistry
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