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http://dx.doi.org/10.1563/aaid-joi-D-15-00074 | DOI Listing |
Cureus
October 2024
Department of Oral Surgery, Medical University of Varna, Varna, BGR.
Socket preservation (SP) is a method aimed at reducing the post-extraction resorption of the alveolar crest and promoting bone deposition in the socket. It involves procedures such as atraumatic tooth extraction, guided regeneration with barrier membranes and bone substitutes, socket sealing, and immediate implant placement. This research aims to evaluate the influence of the combination of dense polytetrafluoroethylene (d-PTFE) membranes and platelet-rich plasma (PRP) on the vertical post-extraction resorption at the premolar and molar sites.
View Article and Find Full Text PDFJ Oral Implantol
March 2024
MD, DDS, Associate Professor at Department of Medical and Surgery Specialties, Radiological Sciences and Public Health, Dental School, University of Brescia, Brescia, Italy.
After dental extraction a physiological phenomenon of reabsorption of the dentoalveolar process is triggered, especially if periradicular lesions are present, which can sometimes be associated with oro-antral communication in the upper posterior maxilla. With the aim of proposing a minimally invasive approach, 19 patients undergoing tooth extraction in the postero-superior maxilla were recruited. All cases presented an oroantral communication with a diameter of 2-5 mm after tooth extraction and the alveolar process, in some cases, with a partial defect of one or more bony walls.
View Article and Find Full Text PDFClin Implant Dent Relat Res
April 2023
Section of Oral Science, Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy.
Background: The present study aimed to evaluate hard and soft tissue parameters around implants placed in augmented posterior mandible, comparing Ti-reinforced d-PTFE membranes with Ti-meshes covered with collagen membranes, after 3 years of follow-up.
Materials And Methods: Forty eligible patients were randomly assigned to group A (Ti-reinforced d-PTFE membrane) or group B (mesh covered with collagen membrane) for vertical ridge augmentation (VRA) and simultaneous implants. Implants were evaluated using specific peri-implant parameters for bone and soft tissues: probing pocket depth (PPD), modified plaque index (mPI), bleeding on probing (BoP), modified gingival index (mGI), thickness of keratinized tissue (tKT), width of keratinized tissue (wKT), fornix depth (FD), peri-implant bone level (PBL), interproximal bone peaks (IBP), marginal bone loss (MBL), interproximal bone loss (IBL).
Int J Periodontics Restorative Dent
April 2022
Since the introduction of guided bone regeneration (GBR) using nonresorbable membranes, membrane exposure has been categorized as one of the major complications associated with the procedure. Expanded polytetrafluoroethylene (e-PTFE) has a long history of use in GBR, and now the use of high-density PTFE (d-PTFE) is commonly reported in the literature. The major structural difference between these two materials is their permeability to bacteria: e-PTFE has an open-pore microstructure and is permeable to bacteria, while d-PTFE is not.
View Article and Find Full Text PDFJ Contemp Dent Pract
April 2020
Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy.
Aim: The aim of this study was to analyze, by the aid of microbiological analysis and the field emission scanning electron microscopical (FE-SEM) analysis, the role of high-density polytetrafluoroethylene (d-PTFE) membranes in avoiding the microbial colonization of a nanocrystalline hydroxyapatite (nc-HA) bone graft and the involvement of this colonization in the healing process.
Materials And Methods: Six patients underwent extraction of unrecoverable teeth, and a socket preservation technique was carried out with nc-HA synthetic bone graft and then covered with a d-PTFE membrane. After 28 days from surgery, FE-SEM analysis and BioTimer assay technique to assess the microbiological count of streptococci species were carried out.
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