scholarly journals The Human Amniotic Mesenchymal Stem Cells (hAMSCs) Improve the Implant Osseointegration and Bone Regeneration in Maxillary Sinus Floor Elevation in Rabbits

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Lu Yin ◽  
Zhi-xuan Zhou ◽  
Ming Shen ◽  
Ning Chen ◽  
Fei Jiang ◽  
...  
Keyword(s):  
Bone Regeneration ◽  
Maxillary Sinus ◽  
Bone Volume ◽  
Control Group ◽  
Sinus Floor Elevation ◽  
Dental Implantation ◽  
Posterior Maxilla ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Elevation

Insufficient bone height in the posterior maxilla is a challenging problem in dental implantation. Bio-Oss, though routinely used in maxillary sinus floor elevation (MSFE), is not osteoinductive. Human amniotic mesenchymal cells (hAMSCs) isolated from placental tissues have potential for multidifferentiation and immunomodulatory properties and can be easily obtained without the need for invasive procedures and without ethical concerns. This is the first study to use hAMSCs to improve implant osseointegration and bone regeneration after MSFE. Human AMSCs were loaded into a fibrin gel and injected into rabbit MSFE models. The rabbits were assigned to four groups (n=3 per group), i.e., the control group, the hAMSC group, the Bio-Oss group, and the hAMSC/Bio-Oss group. The animals were sacrificed at postsurgery for four and twelve weeks and evaluated by histology and immunohistochemistry. Bone volume, bone volume/tissue volume, bone-to-implant contact ratio, and vessel-like structures in the hAMSC/Bio-Oss group were significantly better than those in other groups in the peri-implant and augmented areas. Immunofluorescence staining showed that alkaline phosphatase (ALP) activities of two hAMSC groups were higher than those of the other two groups. Sequential fluorescent labeling was performed in all of the 12-week groups. Observations showed that hAMSCs accelerated mineralized deposition rates on implant surfaces and in bone-augmented areas. These data demonstrated that hAMSCs could enhance implant osseointegration and bone regeneration after MSFE and might be used to optimize dental implantation in the future.

scholarly journals Schneider Membrane Elevation in Presence of Sinus Septa: Anatomic Features and Surgical Management

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Mario Beretta ◽  
Marco Cicciù ◽  
Ennio Bramanti ◽  
Carlo Maiorana
Keyword(s):  
Maxillary Sinus ◽  
Lateral Approach ◽  
Sinus Lift ◽  
Sinus Floor Elevation ◽  
Posterior Maxilla ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
The Right ◽  
Maxillary Sinus Floor Elevation ◽  
Gothic Arch

Maxillary sinus floor elevation via a lateral approach is a predictable technique to increase bone volume of the edentulous posterior maxilla and consequently for dental implants placement. The sinus floor is elevated and it can be augmented with either autologous or xenogeneic bone grafts following an opening bone window created on the facial buccal wall. Maxillary septa are walls of cortical bone within the maxillary sinus. The septa shape has been described as an inverted gothic arch arising from the inferior or lateral walls of the sinus and may even divide the sinus into two or more cavities. Some authors have reported a higher prevalence of septa in atrophic edentulous areas than in nonatrophic ones. Radiographic identification of these structures is important in order to perform the right design of the lateral window during sinus lift. Aim of this investigation is to highlight the correct steps for doing sinus lift surgery in presence of those anatomic variations. Clinicians should always perform clinical and radiographic diagnosis in order to avoid complications related to the sinus lift surgery.

Indirect Osteotome Maxillary Sinus Floor Elevation: An Update

2012 ◽  
Vol 38 (6) ◽  
pp. 799-804 ◽  
Author(s):  
Javier Romero-Millán ◽  
Luis Martorell-Calatayud ◽  
Maria Peñarrocha ◽  
Berta García-Mira
Keyword(s):  
Maxillary Sinus ◽  
Survival Rates ◽  
Graft Material ◽  
Sinus Floor Elevation ◽  
Posterior Maxilla ◽  
Membrane Perforation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Bone Height ◽  
Maxillary Sinus Floor Elevation

The objective was to review publications on indirect osteotome maxillary sinus floor elevation (OMSFE) procedures. Studies published between 1999 and 2010 on patients with a minimum of 1 year of follow-up were analyzed. Fourteen studies were included. Indirect OMSFE is indicated for a bone height of 6–8 mm. More bone height was gained when graft material was used. Schneiderian membrane perforation was the most frequent complication. Survival rates varied between 93.5% and 100%. Osteotome sinus membrane elevation is a predictable and effective procedure for placing implants in areas of the posterior maxilla with low bone height.

scholarly journals Surgical Complications Associated to Maxillary Sinus Floor Elevation in Implantology

2019 ◽  
pp. 155-164
Author(s):  
Deisy E. Quispe Damián DDS, MSc ◽  
Carmen T. Castro-Ruiz DDS, MSc ◽  
Gerardo Mendoza Azpur DDS, MSc
Keyword(s):  
Literature Review ◽  
Maxillary Sinus ◽  
Surgical Complications ◽  
Sinus Floor Elevation ◽  
Posterior Maxilla ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Implant Therapy ◽  
Bone Height ◽  
Maxillary Sinus Floor Elevation

Maxillary sinus floor elevation has been extensively documented as a safe and predictable procedure for gaining vertical bone height in the atrophic posterior maxilla. Even though, complications have been reported, which can potentially jeopardize the outcome of the regeneration and implant therapy. Therefore, the purpose of this literature review is to present, debate and analyze the different complications that can occur during a sinus floor elevation.

scholarly journals Maxillary Sinus Floor Elevation for Dental Implants: Revision Results of Research Oriented to Bone Regeneration

2018 ◽  
Vol 1 (2) ◽  
pp. 123-128
Author(s):  
Sergio Olate
Keyword(s):  
Surgical Technique ◽  
Bone Regeneration ◽  
Maxillary Sinus ◽  
Dental Implants ◽  
Sinus Floor Elevation ◽  
Research Teams ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Research Criteria ◽  
Maxillary Sinus Floor Elevation

Research oriented to bone regeneration and reconstruction has been growing and national and international research teams have complied with the development of sustained and sustainable research criteria. The aim of this work is to present the results of investigations realized by different centers to which the author is affiliated, making an analysis of maxillary sinus reconstruction for dental implants. We revised research during the last 6 years related to the surgical technique, anatomical analyses, and definition, as well as choice of bone graft. We determined the main conclusions of the analyses, innovative research to optimize efficiency in major sinus reconstruction was established, as was the technique modification for different cases.

Human Maxillary Sinus Floor Elevation as a Model for Bone Regeneration Enabling the Application of One-Step Surgical Procedures

2013 ◽  
Vol 19 (1) ◽  
pp. 69-82 ◽  
Author(s):  
Elisabet Farré-Guasch ◽  
Henk-Jan Prins ◽  
Janice R. Overman ◽  
Christiaan M. ten Bruggenkate ◽  
Engelbert A.J.M. Schulten ◽  
...  
Keyword(s):  
Bone Regeneration ◽  
Maxillary Sinus ◽  
Surgical Procedures ◽  
Sinus Floor Elevation ◽  
One Step ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Elevation
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