View clinical trials related to Tooth Loss.
Filter by:This study is a controlled, randomized clinical trial over about 16-months (active phase). 40 patients in need of replacement of a single tooth with a minimal crestal bone width of 4 - 5mm and suitable for simultaneous GBR (Guided Bone Regeneration) procedure as well as at least a neighboring tooth on its mesial aspect will be consecutively recruited at the Department of Dental Medicine and Oral Health Graz. Volunteers will be screened and eligible subjects will be randomized to two different groups. In group 1 implants with regular neck design (Astra Tech Implant EV C, Dentsply Implants Manufacturing GmbH, Hanau, Germany) and GBR procedure (BioOss® and BioGide®, Geistlich, Wolhusen, Schweiz) fixed with two membrane pins (Hipp Medical AG, Kolbingen, Germany) will be used; in group 2 implants with sloped marginal configuration (Astra Tech Implant Profile EV C, Dentsply Implants Manufacturing GmbH, Hanau, Germany) without bone augmentation are used. The dimension of the bony defect and amount of lingual-buccal bone height discrepancy (max. 5mm) respectively bone width will be evaluated using a 3-D volume tomography (Planmeca ProMax® 3D Max, Planmeca, Helsinki, Finland), which is needed for digital planning (Simplant Planning Software, Leuven, Belgium) of the implant position, length and diameter as well.
The primary aim of the study is to compare the outcome of one vs two visits endodontics (root canal treatments) performed in general dental practice of infected (necrotic) teeth, one and four years after treatment. Secondary aims are to compare the root filling quality and the frequency of complications for both treatment modalities. A pilot study will identify the shortcomings of the protocol, which will be revised accordingly. A multi-center study in several clinics from five counties throughout Sweden is planned. Consecutive eligible patients (see inclusion and exclusion criteria) with one tooth each will be included. The study sample size calculation was based on a judgement that a minimal worthwhile effect of less than 10% was not clinically relevant. The presumption was that successful outcomes would be of 75% and 65% for the different treatment arms, respectively. Three hundred and fifty six patients per group are thus needed to detect that difference as statistical significant with a power of 80% and an alfa-error of 5%. To compensate for around 30% drop-outs a number of 1000 patients will be recruited. Patients will be randomly enrolled in two arms: one in which the endodontic treatment (root canal treatment) is performed in one visit, and in the other arm in two visits. The allocation sequences for one vs multiple visit endodontics will be computer generated followed by a dark colored envelope concealed allocation. The patients will be contacted by telephone 5-7 days post-operatively, and a control visit at the clinic will be scheduled one month post-operatively to assess complications related to the treatment. A clinical control will be performed at the clinic one and four years after treatment. Intra-oral radiographs will be taken. The radiographs will be examined by two blinded and independent observers. A successful outcome is defined by clinical and radiographic normalcy. The statistical methods selected to analyse the primary outcome will be the Chi square test of 2x2 tables, or Fisher´s exact test when proportions are small and the expected value <5. The calculations will be two-tailed. Results will be considered statistically significant at p<0.05.
The main objective is to evaluate the success / failure rate of CeraRoot ceramic implants (one piece) during five year follow up.
To assess vertical bone height gain with Geistlich Bio-Oss Collagen used in conjunction with simultaneous implant installation in transcrestal approach sinus augmentation.
Compare the survival rate of the implants placed using the ultrasonic technique and placed using conventional drilling, with an immediate load on the aesthetic zone.
The aim of this study is to test the hyaluronic acid hydrogel impact on the healing acceleration of xenogenic bone substitutes used in ridge preservation. Following tooth extraction, bone particles are mixed with the hyaluronic acid gel and grafted in the tooth socket. at the implant placement phase, a cone beam computer assisted tomography file is recorded in order to compare it with the baseline and a biopsy to evaluate the histological consequences.
This study aims to characterize the healing pattern following soft tissue augmentation procedure concomitant to implant placement.
The primary aim of this study is to introduce a new effective and efficient 3D printed design of an intra-oral space maintainer. The secondary aim of the study is to: Evaluate the clinical performance of 3D printed space maintainer versus conventional metal band and loop over a period of 6 months regarding their functional , biological aspects and patient satisfaction.
Study the effect of neurectomy of nasopalatine nerve on the sensation of anterior palate in patients undergoing rehabilitation of anterior maxillary ridge with dental implant
The study aims to clarify the usefulness of 3D-printed replicas in association with autotransplantation of teeth in children and young adults.