Explore the vast range of titles available.

Reduction of the bone dimensions after tooth loss leads to complications during dental implant placement and prosthetic rehabilitation of the patient. Ridge augmentation procedures aim to increase the available bone volume and provide adequate surface area for the following treatment. Different methods and materials are suggested for the purposes of guided bone regeneration. This case report represents the management of a severe bone atrophy with a 3D printed titanium mesh.

Aim : The aim of this randomized clinical trial was to compare the qualitative (linear alveolar ridge changes) and quantitative (healing complications) outcomes after guided bone regeneration (GBR) using a custom-made 3D printed titanium mesh versus titanium reinforced dense PTFE membrane for vertical and horizontal augmentation of deficient alveolar ridges. Materials and methods : Forty patients (40 defect sites) were included in the analysis. The patients were divided into two groups – a test group that received custom made Ti mesh and a control group which received a titanium reinforced dense polytetrafluoroethylene membrane. This case series documented consecutive patients treated with vertical bone augmentation to facilitate the future placement of dental implants. The procedure was performed using xenograft and autograft in a ratio of 1:1. Baseline vertical and horizontal deficiencies, acquired bone height and width as well as absolute bone gain (height and width) were recorded radiographically; postoperative complication rate was recorded clinically. Results : The absolute bone height acquired for the test group was 3.65±1.73 mm, and for the control group - 4.24±2.19 mm; the absolute bone width acquired for the test group was 2.48±1.03 mm and for the control group - 2.60±0.82 mm. Postop complication rate was 33.3% for the test group and 38.9% for the control group. Conclusion : The use of a custom-made 3D printed titanium mesh for needs of vertical and horizontal guided bone regeneration showed results comparable to those of – Ti d-PTFE both in terms of height and width gain and complication rate.

Over recent years, the usage of autologous platelet concentrates (APCs) has risen in hard tissue regeneration and oral implantology. The purpose of the present review is to offer an overview of the use of three APC techniques in dentistry: platelet-rich plasma (PRP), platelet-rich fibrin (PRF), and concentrated growth factor (CGF). A narrative summary of articles published between January 2011 and April 2022 is provided. The PubMed, Cochrane Library, Scopus, and Embase databases were used to conduct the search. The following keywords were used in the preliminary: “VEGF”, “TGF-b1”, “PRP”, “PRF”, “CGF”, AND “sinus augmentation” OR “implants” OR “peri-implantitis” OR “socket preservation” OR “MRONJ”. A total of 82 articles was finally included. The review then takes into account the application of the three techniques in different areas of treatment—including oral implantology, sinus floor elevation, peri-implantitis, socket preservation, and medication-related osteonecrosis of the jaw (MRONJ)—as well as their advantages and disadvantages.

Here we review the knowledge on the local biological immunological response (formation of \"pseudo periosteum\" of the host) to two types of nonresorbable membranes used in the horizontal and vertical alveolar ridge augmentation: the titanium-reinforced polytetrafluoroethylene membrane and the titanium mesh membrane. A literature search was conducted including available in vitro, in vivo, and clinical studies on cellular and molecular immunological response to these two types of nonresorbable membranes, in particular the formation of \"pseudo periosteum\". Emerging data demonstrates that despite barrier membranes being considered as bioinert, they still elicit an immunological response from the body. The outcome of this reaction is the formation of a thin fibrous capsule referred to as \"pseudo periosteum\". There are almost no biomaterials that are truly bioinert and this makes no exception for the nonresorbable membranes used in the guided bone regeneration. This iatrogenically made tissue is hypothesized to have a number of advantages and drawbacks. However, more research is needed in that area to truly understand its nature and importance to the guided bone regeneration process.

Introduction : Tooth extraction is still one of the most common dental procedures, routinely performed for a variety of reasons. Tooth extraction forceps and elevators are well-known extraction instruments which have been the standard in tooth extraction procedures for well over a hundred years. Physics forceps are one possible alternative, aiming to perform less traumatic and more predictable extractions. Aim : The aim of study was to compare the effectiveness of physics forceps as an alternative, less traumatic, tool to the conventional extraction forceps. Materials and methods : All patients in the study were split into two groups: 26 patients in whom conventional extraction forceps were used (a control group) and 28 patients in whom we used physics forceps (a study group). For each group, we assessed the success of the extraction, the buccal cortical plate preservation, pain experience, and early wound healing. Results : There was no statistically significant difference in extraction success scores between the two groups. Physics forceps extractions preserved the buccal cortical plate in 81.1% of instances, while traditional forceps extractions did so in 71.8%. The patients in the study group reported less pain on the seventh day. At 10 days, the study group had a marginally higher proportion of completely healed extraction wounds. Conclusions : Atraumatic extractions preserve more hard and soft tissues at the extraction site. Physics forceps are a tool similar to the well-known conventional extraction forceps. They provide for somewhat better results in most extractions.

Tooth extraction is one of the oldest and most well-known surgical procedures in dental medicine. It is still routinely performed by general practitioners and dental undergraduates. The Benex extraction system allows for the extraction of teeth in a vertical direction, which avoids most trauma against surrounding alveolar bone and soft tissues. The study included 56 patients who were recruited from the Department of Oral Surgery, Medical University—Plovdiv. The patients were split into two groups of 28 patients—Group I (control group) and Group II (study group). For each group, the success of the extraction, buccal cortical plate preservation, pain experience and early wound healing were assessed. There was no statistical significance between the success of the extractions in both groups. The Benex extractions preserved the buccal cortical plate in 95% of the cases, whereas the forceps extractions preserved it in only 71.8%, which is statistically significant. On the seventh day, patients in Group II reported less pain, without a significant difference. There was a significantly bigger number of completely healed extraction wounds on the 10th day. Atraumatic extractions allow for more hard and soft tissues to be preserved in the extraction site. This is essential for a successful outcome and the aesthetically pleasing results of the following dental restoration.

Different barrier membranes and augmentation techniques are used in oral surgery to recover lost bone structures with varied success. Recently, a combination between bone graft materials and Platelet-Rich-Fibrin (PRF) is implemented in the periodontology and implantology. The aim of this case report was to assess the possibility for augmentation of the alveolar ridge in the frontal region of the upper jaw, utilizing a combination of bone graft material, injectable platelet-rich-fibrin (i-PRF) and advanced platelet-rich fibrin (A-PRF). An 18 year-old male with expulsion of tooth 11 and partial fracture of the alveolar ridge was treated with augmentation of the alveolar ridge using bone graft material, injectable platelet-rich-fibrin(i-PRF) and advanced platelet-rich-fibrin (A-PRF). Clinical results were reviewed 4 months after the augmentation and a dental implant was placed. The postoperative period was uneventful. The control CBCT scan showed good organization of new bone allowing placement of a dental implant. The successful clinical and radiographic results of the case suggest that using A-PRF and i-PRF can be beneficial for bone augmentation of the alveolar ridge before implant placement.

Introduction: Sufficient bone volume, as well as the bone quality characteristics are necessary prerequisites to ensure optimal mechanical stability of the implants and subsequent osseointegration. Aim: The aim of the present study was to assess the correlation between bone density values obtained by cone-beam computed tomography (CBCT), the primary stability of dental implants and the histomorphometric analysis of bone quality. Materials and methods: Following tooth extraction, socket preservation with frieze-dried bone allograft or protein-rich fibrin (PRF) was performed on 30 patients with 30 maxillary teeth in the region from second premolar to second premolar. Four months after the procedure, CBCT was used to assess the bone density (Hounsfield units) in the area of extraction. Thirty bone samples were harvested from implant sites using a trephine drill. They were analyzed with Image J software. Immediately after placing the implant, the implant stability quotient was measured using the Osstell Idx device. Results: The results revealed significant correlations between bone density and primary stability along the vestibulo-oral (r=0.392, p=0.032) and mesiodistal axes (r=0.407, p=0.026). Bone density also correlated strongly with the percentage of newly formed bone (r=0.776, p<0.001). Conclusion: Bone quality, in terms of bone density measured in CBCT and new bone formation are correlated to the primary stability of the dental implants and vice versa.

This article aims to describe the behaviour, feelings and emotions of hospitality professionals regarding the phenomenon of handelingsverlegenheid (which we translate as \"awkwardness to act\") in intercultural professional settings. The overall purpose of this study is to understand how middle management employees of the rooms division department of a small-scale commercial learning hotel in Leeuwarden in the Netherlands lead their team in a cross-cultural working environment. Handelingsverlegenheid is strongly related to anxiety/uncertainty management (AUM) theory and implies a professional's lack of proficiency in responding to a multicultural situation at work. This article describes how hospitality professionals experience this phenomenon. Seven semi-structured interviews were conducted with middle managers who were asked to share their feelings, thoughts and emotions about topics such as cross-cultural communication and leading a diverse team to provide an insight into handelingsverlegenheid and their personal experiences of it. The results suggest that low levels of cultural proficiency and lack of experiences communicating with others from a different culture are the main causes of the manifestation of handelingsverlegenheid in the workplace. Implementation of training to increase cultural sensitivity is important to develop required skills and capabilities of the employees. For further research, it is recommended to broaden the focus on handelingsverlegenheid in staff and guest interactions from one small-scale hotel to different types of hospitality organisations. For management practices, it is recommended to support operational staff and the experiences they have dealing with awkward situations stemming from cross-cultural situations at work.