View clinical trials related to Jaw, Edentulous.
Filter by:The study involved 28 edentulous patients (20 female/8 males; average age of 67.75± 8.627 years) rehabilitated with 33 prostheses (17 all-on-4/16 all-on-6) supported by 164 implants.
This study is a randomized clinical trial comparing the conventional method of recording occlusal vertical dimension using Willis gauge from the base of the nose to the base of the chin with the other method using vernier caliper for the length of the index finger to access the satisfaction level of edentulous patients acquiring complete dentures.
Nuvo Tapered IF (internal hexagonal connection) and CF (conical connextion) Implants were designed for the the oral functional rehabilitation using dental implants, allowing for treatment of patients with different bone qualities. The aim of the study is to confirm the long-term safety and clinical performance of implants and abutments of Nuvo IF and CF in daily dental practice setting, by means of prospective collection of clinical data in randomized clinical trial using these devices. Devices will be used , according to manufacturer indications in the IFU. Patients will be followed for 36 months after implant loading.
This will be a prospective, observational study where all implants will be placed in either the maxilla or mandible and loaded immediately (within 48 hours), early (within 6-8 weeks) or delayed (> 8 weeks) with a provisional or definitive prosthesis. The implants will be evaluated yearly for 2 years.
Today, tooth- or implant-supported single crowns and short-span fixed partial dentures can be fabricated on the basis of an intraoral scan, but the scanning accuracy decreases with increasing length of the jaw section to be captured. An accurate scan is also made more difficult by edentulous jaw sections, as these provide the scanner with few landmarks for proper three-dimensional image composition. With respect to both edentulous and edentulous patients with dental implants, the currently available literature does not provide a firm basis for deciding whether such patients can already be scanned with sufficient accuracy. It is considered problematic in this context that the findings on digital impression accuracy, regardless of whether teeth or implants have been scanned, are based almost exclusively on the results of in vitro studies. Conclusions about the accuracy of intraoral scanners under clinical conditions with moving patients and limited accessibility to the structures to be imaged, especially in the presence of blood, saliva or sulcus fluid, are extremely limited based on these data. Therefore, the aim of this study is to determine the clinical scanning accuracy of two current intraoral scanning systems for the three-dimensional acquisition of the position of two interforaminal dental implants in the edentulous mandible. The influence of artificial landmarks to achieve increased scan accuracy will also be tested.
The digital workflow in dental implantology has been used for planning the cases with the intraoral scanners and computer tomography, together helping clinicians to be more accurate and precise. Today, thanks to digital technology clinicians can plan from surgical to the final prosthesis using 3D models and cad-cam machines. The aim of this research is to validate the full digital workflow for the single-tooth implant rehabilitation. A total of 19 patients (22 implants) were included in the present study with mean follow-up time of 2 years. A full-digital workflow was performed on each patient through the design and printing of a surgical guide, the taking of the impression with an intraoral scanner and the CAD-CAM design of the crowns.
the purpose of this study is to clarify the rationale for the choice of the upper or lower jaw for positioning the occlusal splint
The palatal rugae, refer to asymmetrical and irregular elevations of the mucosa located in the anterior third of the palate, on each side of the median palatal raphe and behind the incisive papilla. The lack of the rugae area on the polished areas of the dentures has been suggested to impact phonetics in denture patients due to lack of tactile feedback. Therefore, the aim of this randomized crossover clinical trial was to compare patients' reported satisfaction with their complete dentures and oral health related quality of life, when provided with a denture with a rough palatal surface in the rugae area compared with a polished palatal surface or an open palatal surface.
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).
A crossover clinical trial investigates two novel CAD/CAM techniques for complete removable dental prostheses for edentulous patients, milling and rapid prototyping (3D-printing) in a clinical setting of an undergraduate student clinic. Outcome parameters concern the dentures' trueness, retention, stability, esthetics and occlusion. Secondary outcome parameters include willingness to pay and prosthetic maintenance need.