View clinical trials related to Implant Site Reaction.
Filter by:The aim of this randomized clinical study is the evaluation of the peri-implant mucosal tissues and the marginal bone level, after positioning the transition shoulder from the intraosseous to the transmucosal portion, with an equicrestal position (at the level of the bone crest) or subcrestal (under the bone crest level).
To evaluate the effect of static magnetic field on dental implant to bone integration.
Dentin grafts are categorized into mineralized dentin, partially demineralized dentin matrix (PDDM), and demineralized dentin matrix (DDM). Mineralized dentin can be obtained from a dentin grinder and was found to be less effective in bone formation, while DDM is biocompatible and osteoinductive. Thus, PDDM which requires a partial demineralization process is an interesting point of research to be studied for its ability for contour augmentation in the esthetic zone.
The increased benefits to the edentulous population from implant supported overdenture is overwhelming in terms of better quality of life, emotional stability, improved function, enhanced esthetics and clinical comfort.1-6 Implant supported prosthesis is considered a viable option for partially edentulous patients7. The oral rehabilitation of a long anterior mandibular edentulous span with a fixed or removable implant-supported prosthesis using appropriate prostheses have been a target in oral implant research for the last year. The longevity of any implant prosthesis depends on successful osseointegration and implant stability. Cone beam computed tomography (CBCT ) has also been used extensively for the follow-up of dental implants and is considered one of the tools for assessing implant success
Compare ISQ values of implants placed in antral area in native bone vs regenerated bone with a follow-up at 3 months to compare values changes.
The current trial aim was to evaluate clinically and radiographically the changes around dental implants inserted immediately in maxillary anterior esthetic zone using a novel combination of autogenous demineralized dentin graft (ADDG) with socket shield technique (SST) and compared this approach to socket shield technique (SST) alone. The present study included 50 participants, aged 20 to 45, with teeth that needed to be extracted. After Kafrelsheikh University research ethics committee approval, participants were randomized into 2 groups: the control group patients underwent immediate implantation using SS protocol, while the study group patients underwent the same procedure, but ADDG was created using the extracted palatal portion of the tooth; and then placed in the peri-implant gap defect.
Nowadays, artificial intelligence technology with machine learning as the main means has been increasingly applied to the oral field, and has played an increasingly important role in the examination, diagnosis, treatment and prognosis assessment of oral diseases. Among them, machine learning is an important branch of artificial intelligence, which refers to the system learning specific statistical patterns in a given data set to predict the behavior of new data samples [8]. Machine learning is divided into two main categories: Supervised learning and Unsupervised learning. Whether there is supervision depends on whether the data entered is labeled or not. If the input data is labeled, it is supervised learning. Unlabeled learning is unsupervised. Supervised learning is a kind of learning algorithm when the correct output of the data set is known. Because the input and output are known, it means that there is a relationship between the input and output, and the supervised learning algorithm is to discover and summarize this "relationship". Unsupervised learning refers to a class of learning algorithms for unlabeled data. The absence of label information means that patterns or structures need to be discovered and summarized from the data set.
In clinical implant treatment, the healing abutment or temporary abutment needs to be removed or replaced multiple times after implant insertion and before prosthesis restoration. During this process, the friction between connective tissue around the implant cannot be avoided. Different from natural periodontal tissue, soft tissue around the implant lacks the periodontal ligament barrier and periodontal ligament blood supply, and is more likely to be damaged during repeated wearing. The integrity, health and stability of the peri-implant connective tissue is crucial to the implant osseointegratio. Through randomized controlled trials and meta-analysis, Marco Tallarico et al found that repeated removal of one-stage abutments can significantly increase bone resorption. Based on this situation, the design of implant neck and abutment, especially the design concept of smooth collar, has attracted widespread attention. The design of smooth collars with different heights can isolate the mechanical damage of the abutment to the connective tissue around the implant to different degrees. Among them, the On1 two-stage abutment has a smooth collar with a height of 1.75-2.5mm, and the Nobel implants have a smooth neck design ranging from 0-0.75mm to protect the connective tissue around the implant. Through a systematic review and meta-analysis, Qing-qing Wang et al concludes that direct mechanical stimulation from the abutment has long-term adverse effects on peri-implant connective tissue and bone tissue. However, whether the On1 two-stage abutment has a positive effect on the stabilization of the peri-implant soft tissue and bone tissue remains to be studied. At the same time, the relative height of the smooth collar increased by the On1 abutment in the implants with different neck designs varies to some extent, and further research is still needed to provide evidence about the effect of the On1 abutment on the tissue surrounding the implants with different neck designs. In conclusion, this study took On1 two-stage abutment and traditional one-stage abutment as the research objects to compare and evaluate the clinical effects of the two in different implant neck design.
After implant restoration, the surrounding tissue, including the gingiva and alveolar bone, will inevitably reconstruct. The study found that gingival recession was easy to occur in the aesthetic area of upper anterior teeth within 1 year after implantation, which was mainly due to the absorption of labial alveolar bone. In order to avoid absorption, the thickness of the labial bone plate should not be less than 2mm, which is difficult to achieve in the anterior tooth area. Therefore, guided bone regeneration (GBR) should be performed in the implant area, which can provide more than 5mm bone increment in the vertical and horizontal positions with long-term stability, being beneficial for the maintenance of the buccal contour and the stability of the soft and hard tissues in the aesthetic area. In this study, the inorganic bone matrix extracted from bovine bone (Geistlich, Gegreen, Haiao, etc.) was used for GBR in the area with insufficient bone volume in the anterior dental implant area. The commercially available xenogeneic bone graft substitutes can be divided into large particles (1-2mm) and small particles (0.25-1mm) according to the particle size. Previous studies have found that in 6 months after implantation, the change of vertical bone height around the implant (i.e. the height from the top of alveolar ridge to the shoulder of the implant) is related to the particle size of bone powder, and large particles of bone powder may have better performance in maintaining the vertical bone height due to the following reasons: 1. Large bone particles may show better mechanical properties and better mechanical compression resistance. 2. Large bone particles may show more reasonable pore size and porosity, which may provide better environment for the growth of new bone. 3. Large bone particles may achieve more reasonable and balanced bone remodeling. However, the effect of bone particle sizes on the maintenance of soft and hard tissue around the bone graft area is still inconclusive. Thus, the purpose of this study is to compare the effects of large and small bone particle sizes on the stability of soft and hard tissues around the bone graft area within 3 years after implant restoration in the anterior tooth area.
This study aims to evaluate retention ,chewing efficiency and masticatory performance of flexible versus CAD/CAM partial dentures opposing to fixed implant retained restorations.