Loading clinical trials...
Loading clinical trials...
Showing 1-20 of 20 trials
NCT07626827
This prospective randomized crossover clinical trial evaluates and compares the clinical performance and oral health-related quality of life (OHRQoL) of complete dentures fabricated through two additive manufacturing workflows - digital and hybrid - in edentulous patients attending the Dental Clinic of Universidad de Especialidades Espíritu Santo (UEES), Samborondón, Ecuador. In the digital workflow, complete dentures are fabricated using direct intraoral scanning of edentulous ridges, CAD design, and 3D printing. In the hybrid workflow, conventional functional impressions are digitized, followed by CAD design and additive manufacturing of the definitive dentures. Each eligible participant receives two complete denture sets in a randomized crossover sequence (no washout period): Denture Set 1 is worn for 2 months, after which the participant crosses over to Denture Set 2, worn for an additional 2 months. Total active follow-up per participant is approximately 4 months. Following completion of the crossover phase, denture wear is monitored longitudinally for 12 months from the insertion of the second denture set (total study duration approximately 16 months per participant). The study addresses three specific objectives: To determine the clinical success rate of complete dentures fabricated by additive manufacturing under digital and hybrid workflows, evaluating retention, stability, denture base adaptation, occlusal balance, and need for clinical adjustments. To evaluate the impact of complete denture treatment on OHRQoL using the validated OHIP-EDENT questionnaire, assessed at the insertion of each denture set and at the 2-month control of each period (4 measurement points total). To evaluate the relationship between maximum masticatory force (T-Scan digital occlusal analysis system) and denture wear (volumetric 3D digital metrology via STL superimposition), with wear monitored over 12 months from insertion of the second denture set.
NCT07211022
This clinical trial evaluates the accuracy of two digital impression techniques intraoral photogrammetry and intraoral scanning in patients rehabilitated with full-arch implant-supported prostheses (All-on-4 and All-on-6 concepts).
NCT07290322
The goal of this clinical trial is to evaluate denture retention in intra-orally scanned versus extra-orally scanned digitally printed maxillary dentures in completely edentulous patients. The main question is : 1. Do intra-orally scanned dentures provide better retention compared to extra-orally scanned dentures? Researchers will compare the intra-orally scanned denture group to the extraorally scanned denture group to determine if one method leads to superior retention records. Participants will: • Receive both types of dentures (intra-orally scanned and extra-orally scanned), with a three-week wash-out period between each intervention. The study aims to provide evidence on the optimal scanning method for digitally printed maxillary dentures in edentulous patients.
NCT06457321
With a demographically ageing population and increasing patients with missing teeth, the demands on the healthcare system are set to further increase. This project is to prepare the public dental healthcare system to remain sustainable in terms of efficiency of denture production and healthcare manpower (lab technicians, clinician and operation staff). It aims to understand and improve denture fabrication productivity, enhance the treatment efficiency. This new model of care is a change from the current staged treatment process to batch processing assisted by new manufacturing methods, with the goal of improving sustainability and effectiveness of existing clinical and dental lab capacities.
NCT05464914
In the first part, after a brief introduction, the advantages and disadvantages of immediate dentures are compared. There is a detailed discussion on assessment and treatment planning which includes history taking, examination of the soft and hard tissues, current prostheses, occlusion as well as discussion on investigations required and formulating a diagnosis. The first part ends with a summary of types of immediate dentures and denture designs.
NCT06881199
Conventional dentures can be uncomfortable and limit oral functionality due to the polished surfaces covering the palate and rugae areas. A randomized crossover clinical trial was conducted to compare patients' satisfaction and oral health-related quality of life when using dentures with an acrylic or metal palate. The study aimed to determine whether an acrylic palate would provide better sensory feedback and improved oral function. Participants wore each denture and completed a questionnaire. The study's results have implications for the design of complete dentures, as they highlight the importance of considering patient experiences and feedback when selecting materials. By prioritizing patient satisfaction and oral health-related quality of life, dental professionals can enhance denture treatments' effectiveness and improve patients' quality of life.
NCT06846619
The goal of this clinical trial is to evaluate patient satisfaction with intra-orally scanned versus extra-orally scanned digitally printed maxillary dentures in completely edentulous patients. The main questions it aims to answer are: 1. Do intra-orally scanned dentures provide higher patient satisfaction compared to extra-orally scanned dentures? 2. Are there significant differences in comfort, fit, aesthetics and phonetics between the two types of dentures? Researchers will compare the intra-orally scanned denture group to the extra-orally scanned denture group to determine if one method leads to superior patient-reported outcomes. Participants will: * Receive both types of dentures (intra-orally scanned and extra-orally scanned), with a three-week wash-out period between each intervention. * Complete satisfaction surveys to assess comfort, fit, and aesthetics after using each type of denture. The study aims to provide evidence on the optimal scanning method for digitally printed maxillary dentures in edentulous patients.
NCT05443048
The use of complete removable dental prostheses (CRDP) is a reliable and effective treatment option for the rehabilitation of edentulous persons. In recent years, the use of computer-aided design/computer-aided manufacturing (CAD/CAM) methods has become more popular for the fabrication of CRDPs, including subtractive methods (milling) from a prefabricated resin puck. They present various advantages compared to conventional fabrication methods, namely improved mechanical properties, superior surface characteristics, shortened manufacturing time and lower cost for the patient. However, one of the shortcomings in the manufacturing of CRDPs from a single block of resin is obtaining an adequate esthetic outcome, as the transition between the gingiva-colored (pink) and tooth-colored (white) resin is not as precise as with prefabricated prosthetic teeth which are incorporated into a denture base. A novel technology has recently been launched on the market and includes a new design of distribution of pink and white resin inside a prefabricated resin puck, which would allow a superior esthetic outcome than previous techniques. The aim of this pilot study is to assess the end result of one of the available systems used for fabricating digital dentures (Ivoclar® Digital Denture®), while using the corresponding monolithic resin puck (Ivoclar® Ivotion Denture System®), and therefore determining whether this new technique is an adequate option for treating edentulous patients.
NCT06388395
The all-on-4 treatment approach for completely edentulous mandible is a proven concept. However, there are still issues regarding the use of metal substructure to support the prostheses such as allergy, metallic taste, and aesthetic. Therefore, other materials such as polyetheretherketone (PEEK) are being tested for its suitability and is showing good potential. However, available evidence is limited regarding its clinical performance. Thus, the aim of this study is to compare clinical performance of all-on-4 treatment concept utilizing PEEK versus conventional metal framework as substructure in fully edentulous mandible. Thirty suitable patients will receive either PEEK or conventional all-on-4 prostheses for fully edentulous mandible. The prostheses will be retained by four implants utilizing the all-on-4 principle. Clinical performance will be assessed during the follow up period of up 3 years concerning screw loosening, material chipping or fracture, wear or staining, prosthesis survival and success, implant survival and success.
NCT05972538
A Total number of 36 implants were installed in 6 patients having mandibular single denture. The patients were divided into two groups according to the definitive prosthesis. Group I received ball and socket retained mandibular implant overdenture while Group II received cement retained implant supported fixed bridges.
NCT05162963
Comparison between fixed and removable implant-retained complete prostheses previously showed that while patients appreciate the ergonomic cleaning of removable prostheses, they prefer the comfort and masticatory efficiency of fixed prostheses. New treatment strategies are emerging; the use of telescopic attachments now offers a prosthetic alternative for the treatment of edentulous teeth at a lower financial cost than fixed prostheses. To answer this question, the study is constructed as a cross-over. 30 patients will use a removable telescopic prosthesis and then a fixed prosthesis, or vice versa, for a period of 6 months according to randomization. They will answer a quality of life questionnaire after each period and finally choose their favorite prosthesis. The null hypothesis is that removable telescopic implant prostheses will result in a quality of life comparable to that obtained with fixed implant-supported prostheses. The primary objective of this study is to demonstrate the non-inferiority of removable versus fixed prostheses on quality of life after 6 months of use of each implant-supported prosthesis in edentulous maxillary or mandibular patients. The measurement of the evolution of the quality of life is analyzed using the GOHAI questionnaire after 6 months of use of each prosthesis. The secondary objectives are to: * Determine the decisional parameters in the final choice of the prosthesis by the patient at the end of the study, with the Mc Gill Denture Satisfaction Instrument, * Compare the masticatory efficiency between the two dentures (duration, number of cycles and frequency of chewing of the carrot test food, with each denture after 6 months of use), * Compare the oral hygiene between the two prostheses (peri-implant plaque index, after 6 months for each prosthesis), * Compare the adjustments and repair required after the placement of each prosthesis and the chairside treatment time to achieve them, * Compare the complications and their frequency of occurrence with each type of prosthesis during the 6-month wearing period.
NCT04999579
Bite testing using T-Scan allows the evaluation of occlusal contacts prior to making a bite adjustment. The T-Scan can indicate premature contact and the load distribution on teeth, and provide measurable force and time information that ensures proper occlusal adjustment.
NCT04942262
80 complete denture (CD) wearers participated in the quasi-experimental study. Two outcomes were: 1) oral health-related quality of life (OHRQoL) assessed using the Oral Impacts on Daily Performances index, and 2) masticatory performance, determined by a peanut particle size after 20-stroke mastication. Denture retention and stability were evaluated using the Chulalongkorn University (CU)-modified Kapur method to classify the CD into acceptable or unacceptable quality. Data were collected at 3-time points: 1) at baseline (T0), 2) after a 1-month trial of denture adhesive (DA) use (T1), at which time the participants decided whether to continue using DA, and 3) 1-month after continued or discontinued using DA (T2).
NCT03930862
Will the use of locator attachment influence the muscle efficacy when compared to ball and socket attachment in mandibular implant overdenture? '
NCT03048812
Dental implants are often the preferred treatment option and in some clinical scenarios they are considered the standard of care to restore missing or damaged teeth, due to the limitations of conventional treatments. For fully edentulous subjects, conventional tissue-supported dentures in some cases are associated with severe subjective complaints and difficult adaptation, mainly the mandibular denture, resulting in limited function and detrimental effects on oral health-related quality of life, especially for older patients. The use of implants to retain a mandibular denture (overdenture) has been recommended as a suitable and low-cost alternative to improve denture stability, with positive effects on oral comfort and function. The two-implant mandibular overdenture has been considered an effective design to achieve clinical benefits for patients. However, the main problem facing two-implant overdenture is the high cost of implantation and the relative complexity of the surgical intervention, so the use of a single midline implant to retain a mandibular overdenture was suggested as a more viable solution for reducing costs and complexity of treatment with similar benefits compared to solutions with higher number of implants. Nevertheless, there are few studies that compared the performance of different retention systems and their effects on patient-centered outcomes, such as satisfaction with the dentures, oral health-related quality of life, individual preferences and other subjective ratings of clinical outcomes. Thus, the aim of this randomized clinical trial with a crossover design is to investigate the changes in clinical and patient-reported outcomes following the use of different retention systems for a single implant-retained mandibular overdenture Hypothesis: it was hypothesized that clinical and patient-reported outcomes of a single-implant mandibular overdenture is dependent on the type of retention system, and patients have distinct preferences in relation to different attachments
NCT03463174
This is a randomized clinical trial designed to assess the 1-year effectiveness of two treatment modalities for the mandibular edentulists: conventional complete dentures and single-implant mandibular overdenture.
NCT03326453
The better form of ridge will provide using wider implants that can have better abilities to with stand forces and to prevent alveolar bone loss as much as possible. Ridge expansion gained some popularity due to easiness compared to any other procedure that can gain bone. However, this treatment modality needs to be evaluated as compared to Mini Dental Implants (MDIs) over denture in thin mandibular ridge. In mandibular edentulous patients having thin ridge, does the mini implant supported over denture, compared to the conventional implant supported over denture after bone expansion affect bone height around implants?
NCT03253510
Randomized clinical trial to compare between biting force of mandibular complete denture constructed from two different materials; metal reinforced polyamide and conventional PMMA,The null hypothesis of the study that there will not be a difference between biting force of the complete denture constructed from metal reinforced polyamide and PMMA
NCT02180230
The aim of this study was to evaluate the 7 mm long implants NobelSpeedy Shorty and Brånemark System Mk III Shorty: by determining the marginal bone remodeling, implant survival rate, soft tissue health and maintenance.
NCT01397617
The purpose of this study is to determine the survival rate, marginal bone resorption, soft tissue health and maintenance of the NobelActive Internal and External implants and to make comparisons with the NobelReplace Tapered Groovy implant placed in healed sites.