Active clinical trials for "Tooth Loss"

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.

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.

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.

Objectives - To evaluate the 4-year clinical outcomes of ceramic veneered Computer Aided Design/Computer Aided Manufacturing (CAD/CAM) Co-Cr single crowns supported by natural teeth in posterior regions. Material and methods - Eighty-nine patients were provided with 120 ceramic veneered CAD/CAM Co-Cr single crowns replacing either premolars and molars. Specific inclusion criteria were needed and tooth preparations were standardized and performed by 2 expert prosthodontists. CAD/CAM Co-Cr frameworks were fabricated and veneered with ceramics. The restorations were cemented using a eugenol-free zinc oxide luting agent. The patients were recalled after 1, 6, 12, 24, 36 and 48 months. The survival and success of the restorations were evaluated. The technical and esthetic outcomes were examined using the United States Public Health Service criteria. The biologic outcomes were analyzed at abutment and contralateral teeth and descriptive statistics were performed.

Primary Endpoints : The implant survival and success rate of V3 and C1 implants will be compared. Implant success rate will be evaluated by measuring the peri-implant bone remodeling from baseline to 1 year post insertion. The hypothesis is those implant survival rates of the test (V3) and control group (C1) are similar and that test V3 implant allows less peri-implant bone loss. Secondary Endpoints : The thickness of hard tissue in the buccal aspect of the V3 and C1 implants will be compared. The bone thickness will be measured in cone beam computerized tomography (CBCT) on the day of implantation, 4 and at one year after the final restoration. The hypothesis is that V3 implant allows thicker bone dimension in the cervical area.

In this split-mouth controlled study, implants placed using the alveolar ridge expansion technique will be compared to those placed in native bone with sufficient horizontal bone width. The Piezosurgery device and Bone expanders (Mectron,Italy) will be employed in an alveolar ridge expansion technique.

Fixed-partial dentures fabricated of zircon-oxide ceramics were introduced in dentistry some time ago. However, the survival rate of all-ceramic extended (up to 47mm) fixed-partial dentures is unknown. The hypothesis was that long FDPs fabricated of zirkon-oxide withstand masticatory forces in the posterior and anterior regio of the jaw.

This study aims to assess the treatment outcomes (clinical, functional and subjective) of full arch rehabilitations supported by implants with or without an immediate loading protocol. In this randomized clinical trial 20 fully edentulous patients were treated with full arch rehabilitations on dental implants. In half of the sample, the implants were loaded immediately by means of abutments after emplacement of the implant; but in the counterparts these abutments were connected to implants two months after the surgery (conventional protocol), and until that time the dentures were retained by healing abutments. Treatment outcomes were assessed at 2, 6 and 12 months after surgery. Clinical outcomes were quantified on the basis of implant failure rate, marginal bone loss and the peri-implant gingival index. Functional outcomes were calculated according to masticatory performance, estimated by the mixed fraction of a two-coloured chewing gum after 5, 10 and 15 chewing strokes, by the occlusal force recorded by pressure-sensitive sheets and by the bioelectrical muscular activity. The subjective outcomes of the treatment were assessed using both the oral satisfaction scale (visual analogue scale) and the Spanish version of the Oral Health Impact Profile (OHIP-20).

The purpose of this research is to determine if one's own bone marrow tissue can help regenerate (grow) bone in the area of the jaw where an implant will be placed. The name of the process is called Bone Repair Cell (BRC) Therapy. A sample of bone marrow tissue will be collected and sent to a laboratory where it will be processed to form more cells. These new cells will then be transplanted in the regenerative site or sinus floor augmentation site. The researchers are testing to see if these cells (BRC) will help form bone indicating. The research will also determine if the implant will be more stable in the area with new bone growth.

The purpose of this study was to investigate and compare the variation in mandibular relation recorded by the gothic arch methods and the K7 method using cone beam computed tomography (CBCT)