An interventional study of Removable Partial Denture in Speech, Denture, Partial, Removable and CAD-CAM, sponsored by Badr University. Recruiting at 1 site in Egypt. Per ClinicalTrials.gov, last updated 2025-09-03.
Sponsored by Badr University · Not applicable, Interventional, and Treatment
Partial dentures play a crucial role in restoring oral function and aesthetics for patients with missing teeth. Traditionally, these prostheses have been fabricated using materials such as acrylic resin or cobalt-chromium alloys. However, advancements in digital dentistry have introduced new materials and manufacturing techniques, including computer-aided design and computer-aided manufacturing (CAD/CAM) milled titanium. While titanium offers advantages such as biocompatibility, lightweight properties, and corrosion resistance, its impact on speech performance remains understudied.
While the benefits of titanium in terms of durability, comfort, and biocompatibility are well-established, its impact on speech performance remains a relatively understudied aspect of its use in partial dentures. Speech is a complex function that involves the coordination of the teeth, tongue, lips, and other oral structures. The introduction of any foreign object, such as a denture, into the mouth has the potential to affect the way sounds are produced and articulated, which is why the impact of denture materials on speech must be carefully considered.
Traditional denture materials, such as acrylic resin and cobalt-chromium alloys, have been extensively studied in terms of their effects on speech performance. Research has shown that the thickness, weight, and positioning of dentures can influence how well patients are able to articulate certain sounds, particularly sibilants (such as "s" and "z" sounds) and fricatives (such as "f" and "v" sounds). Thicker or poorly fitted dentures can interfere with the movement of the tongue and lips, leading to speech distortions or difficulties in pronunciation.
Given that titanium is lighter and thinner than many traditional materials, it is reasonable to hypothesize that it could offer advantages in terms of speech performance. The reduced weight of titanium partial dentures may allow for more natural tongue and lip movements, potentially resulting in clearer and more accurate speech. Additionally, the precision of CAD/CAM technology allows for the creation of dentures that fit more snugly and comfortably in the mouth, further reducing the likelihood of speech impediments.
However, despite these potential benefits, there is currently limited research specifically focused on the impact of titanium partial dentures on speech performance. Most studies on the material have concentrated on its mechanical properties, such as strength, durability, and biocompatibility, while its effects on speech have received less attention. As speech is a vital function for communication and quality of life, further research is needed to determine whether titanium dentures offer significant improvements over traditional materials in this regard.
205 studies on the registry are indexed under Speech; 80 are open to participants now.
This study's planned enrollment of 12 is below the median of 52 across 141 interventional studies indexed under Speech.
Browse Speech studies →Badr University is the lead sponsor of 64 studies on the registry; 18 are open to participants now.
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The conventional impression-based fabrication of a cobalt-chromium framework for partial dentures follows a well-established process that involves multiple steps to ensure an accurate and functional prosthesis. This method, which has been widely used for decades, relies on manual techniques and skilled craftsmanship to create the metal framework that supports the artificial teeth and secures the denture in place.
Device: Removable Partial Denture
The CAD (Computer-Aided Design) and CAM (Computer-Aided Manufacturing) process for creating a titanium framework for partial dentures represents a modern, highly precise approach to dental prosthesis fabrication. This digital process offers several advantages over traditional methods, such as improved accuracy, a more comfortable fit, and a reduction in the number of manual steps involved.
Device: Removable Partial Denture
A removable partial denture (RPD) is a dental prosthesis designed to replace one or more missing teeth in the mouth. Unlike full dentures, which are used when all teeth are missing, an RPD is specifically made for patients who still have some of their natural teeth remaining. It restores both function and aesthetics, allowing patients to chew, speak, and smile with greater confidence.
Speech analysis
Speech analysis refers to the systematic study and evaluation of human speech to understand various characteristics and functions related to sound production, articulation, and language. It is used in a wide range of fields, from linguistics and phonetics to medical and technological applications, such as diagnosing speech disorders and developing voice recognition systems.
Time frame: after 1 and 3 months
Intelligibility test
An intelligibility test of speech is a method used to assess how well a person's speech is understood by others. It measures the clarity, precision, and comprehensibility of spoken words, focusing on how accurately listeners can interpret the speech without needing context or prior knowledge of the speaker\'s intent. Intelligibility tests are particularly important in diagnosing and evaluating speech disorders, assessing the effectiveness of speech treatments, and analyzing the impact of devices like dentures or hearing aids on communication.
Time frame: after 1 and 3 months
Plan to share: No
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Ran from Sep 2024 to primary completion in Dec 2024, 2 months.
Of 85 non-industry interventional studies with no phase under Speech, half reached primary completion within 45 months of starting (the median), counting those still running; a quarter within 14 and three quarters within 65. This study's 2 months is below that.
Counting every sponsor, half of 90 studies reached it within 45 months; a quarter within 15 and three quarters within 65.
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