View clinical trials related to Tooth Loss.
Filter by:Patients who have severe crowding that require four premolars extraction will be treated in this study. The efficacy of the clear aligners and vestibular fixed appliances will be assessed. The treatment result of these two different methods will be explored using the Peer Assessment Rating (PAR) in two different times (T0: Before treatment, T1: After treatment) and the American Board of Orthodontics Objective Grading System (ABO-OGS) after treatment (T1). There are two groups: First group (Experimental): the patients in this group will be treated using clear aligners. Second group (Control): the patients in this group will be treated using fixed appliances.
This study aims to evaluate the levels of cytokines, chemokines and growth factors in peri-implant sulcular fluid (PISF) during healing and osseointegration at osteotomy sites prepared either with piezosurgery (PS) or drills (D). Fourteen patients having bilateral partial edentulism in the posterior maxilla were enrolled and 38 osteotomies were prepared. Implants were placed with one-stage surgery. Insertion torque, early healing index, probing depth and modified gingival and plaque indices and crestal bone (CB) loss were measured. PISF was collected from 4 sites from each implant at weeks 2, 4, 8, 12 and 24. PISF samples were analysed by a 30-Plex immunoassay. Effect of time and osteotomy method on molecules employed Brunner-Langer method.
The aim of the study was to determine whether implant length and the crown-to-implant (C/I) ratio influence implant stability and the loss of the surrounding marginal bone, and whether short implants can be used instead of sinus augmentation procedures.
Twenty-nine patients needing single tooth replacement in aesthetic area were treated by extraction and socket preservation with saddle connective tissue graft between September 2009 and February 2012. Computed Tomography scan were taken at baseline just after the surgery and 3 months later. Long- term evaluation of this particular socket management procedure was evaluated by recalling successfully seventeen of theses patients in June 2016. At this time, a clinical and radiographical consultation was done and Cone Beam CT was taken. Horizontal and vertical bone dimensional changes were then assessed thanks to 3D imaging analysis and esthetic and implants outcomes were evaluated.
A Clinical Trial to study the effectiveness between two, tooth socket grafting materials namely, Freeze Dried Bone Allograft (human derived bone particles) and Leukocytic-Platelet Rich Fibrin (the patient's own centrifuged blood). The purpose of this study is to compare the effects (good and bad) of Bone Allograft to Platelet Rich Fibrin to see which material would be the most effective in maintaining the volume of the gum and bone of the jaw during the healing phase as well as minimizing the amount of pain and/or swelling following tooth extraction.
Total of 48 subjects were randomly assigned to treatment groups: UT Health Science Center at San Antonio Chi Mei Medical Center, Tainan, Taiwan Patients require a maxillary non-molar extraction site that is planned to be replaced by a dental implant and crown. This includes Straumann BL SLActive: Narrow (3.3mm) & Regular (4.1mm) Crossfit implants in all available lengths. Patients were randomly selected to receive either FDBA (test) or Autogenous bone + DBBM (control/standard) for contour augmentation.
The aim of this research project is emphasize the benefit of the digital workflow compared to conventional impressions and crown processing with standard la procedures. The objectives of the present study are to measure and compare the global cost, the time spent in the dental chair and in the lab and the fit of both digital and conventional workflow. Additionally, patient centered outcomes will be recorded.
To evaluate the change in patient Oral Health-related Quality of Life (OHRQoL) from wearing a cobalt chrome (CoCr) removable partial denture (RPD) to wearing the Solvay Dental 360TM polymer Removable Partial Denture (RPD) for 8 weeks.
This study is being conducted to compare the outcomes of two separate surgical techniques used in tooth extraction and ridge preservation. Ridge preservation is done to potentially minimize the amount of bone loss that occurs between the tooth extraction and implant or bridge placement, as compared to leaving the extraction site empty. There are two techniques that are commonly used for these procedures, either to close the surgical site of the extracted tooth with sutures (closed flap technique) or to leave the extraction site open to heal naturally (open flap technique). In the open flap technique there will be sutures used to secure and hold down the material used to cover the wound, called a non-resorbable membrane. The flaps will remain in their natural position, the site will fill up naturally with new tissue from the bottom up and then close itself in from the sides. The investigators want to see which technique offers better healing and reduces bone loss.
The purpose of this study is to evaluate the safety and efficacy of the gene-activated bone substitute consisting of octacalcium phosphate and plasmid DNA encoding vascular endothelial growth factor (VEGF) for maxillofacial bone regeneration. The patients with congenital and acquired maxillofacial bone defects and alveolar ridge atrophy will be enrolled.