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Spots Global Cancer Trial Database for A New Membrane Obturator Prothesis Concept for Soft Palate Defects

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Trial Identification

Brief Title: A New Membrane Obturator Prothesis Concept for Soft Palate Defects

Official Title: A New Membrane Obturator Prothesis Concept for Soft Palate Defects

Study ID: NCT04009811

Study Description

Brief Summary: When soft palate defects lead to palatal insufficiency, the patient's quality of life is affected by difficulties swallowing, hypernasality, and poor intelligibility of speech. If immediate surgical reconstruction is not an option, the patient may benefit from the placement of a rigid obturator prosthesis. Unfortunately, the residual muscle stumps are often unable to adequately move this stiff and inert obturator to properly restore the velopharyngeal valve function. The objective of this case report was to describe the use of a membrane obturator prosthesis that incorporates a dental dam to compensate for the soft palate defect.

Detailed Description: The velopharyngeal sphincter seals the oropharynx from the nasopharynx during swallowing and speech. This three-dimensional muscular valve closes through the synergistic behavior of the soft palate and the lateral and posterior walls of the pharynx. A soft palate defect surgically acquired in the context of oral cancer may impede complete closure and lead to a palatopharyngeal insufficiency. The resultant airflow escape results in hypernasality, poor speech intelligibility, and swallowing problems (such as leakage of foods and fluids into the nasal airways). The best way to rehabilitate and restore chewing and swallowing is one of the top ten research priorities in head and neck cancer. When the velopharyngeal function cannot be immediately restored with surgical reconstruction, patients can benefit from an obturator prosthesis. This obturator is a rigid extension of acrylic resin positioned at the level of the hard palate that provides surface contact for the remaining musculature. Often, the residual muscle stumps cannot move adequately around this stiff and inert obturator to properly restore the velopharyngeal valve function. The resulting blockage, or free space between the tissues and obturator, is a main cause of prosthetic failure. Subsequently, in many cases, oral functions remain impaired, with a negative impact on the patient's quality of life. The compensating treatment consists of a provisional removable partial denture (RPD) with a membrane obturator. The membrane consisted of a thick dental dam shaped with scissors to create a 10-mm overlap with the pharyngeal walls that was then perforated with four holes using punch pliers. The follow-up ends after the last visit. However, our team can provide cares of any patient seeking for dental care, prosthetic treatments and routine follow-up.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

CHU de Bordeaux, Bordeaux, , France

Contact Details

Name: Elise ARRIVE, DDS

Affiliation: Unité de Soutien Méthodologique à la Recherche Clinique et Epidémiologique (USMR) du CHU de Bordeaux

Role: STUDY_CHAIR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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