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 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.
The present study aims to evaluate the effect of utilization of BMAC/ collagen on marginal bone changes around immediate implants in the esthetic zone of maxilla. Methodology: Twenty dental implants will be installed in the esthetic zone and patients will be randomly divided into two groups: study group: The jumping gap surrounding the immediate implants will be grafted with BMAC/collagen, whereas in the control group, autograft from the chin will be used to fill the defect. Cone beam CT (CBCT) will be requested Preoperative, immediate and 4 months Postoperative for assessment of marginal bone changes around implants. .
A patient with a tumor lesion of the chest wall undergoes CT scan with a step width of less than 1 mm, then engineers design an individual model to replace the defect. Using a 3D printer, a model is made based on titanium alloy powder. Preoperative preparation takes an average of 14-21 days. The next stage is surgical treatment in the amount of resection of the chest wall with plastic defect with an individual titanium implant. In some cases, the titanium framework is separated from the pleural cavity by a polytetrafluoroethylene plate in order to seal and prevent the development of pulmonary hernias. The advantages of titanium individual prostheses include accurate matching of the implant to the size and characteristics of the defect, individual modeling allows you to repeat the anatomical features of the patient. This method helps to recreate the original shape of the chest, and most importantly, symmetrical, relatively healthy half. With the help of titanium, individualized prostheses are made based on 3D modeling, which will reduce the incidence of complications, accelerate rehabilitation and improve the quality of life of patients with tumor lesions of the chest wall. The postoperative period takes 15-30 days.