Pressed film type palate lifting prosthesis and manufacture method thereof

Abstract

The invention provides a pressed film type palate lifting prosthesis and a manufacture method thereof. The pressed film type palate lifting prosthesis comprises a denture part, a hard palate part anda soft palate part, wherein the denture part is matched with the appearance of the upper denture of a patient; accessories are manufactured on the second odontoprisis buccal surfaces of the upper jawsof two sides of the patient; the denture part is provided with cavities corresponding to the accessories; the denture part is connected with the front part of the hard palate part; the hard palate part is of a convex upward bulge shape and is matched with the shape of the hard palate part of the oral cavity of the patient; the rear end of the hard palate part is connected with the front end of the soft palate part; and the tail end of the soft palate part is of a convex upward backward bulge shape, is matched with the shape of the soft palate part of the oral cavity of the patient but is higher than a practical soft palate position. When the patient wears the prosthesis, the denture part is sheathed to the upper denture of the patient and is fit to the upper denture, the cavities on two sides contain and coat the accessories, the hard palate part is fit to the hard palate of the oral cavity of the patient, and the soft palate part is fit to the soft palate of the patient and raises the soft palate to be height which should be reached when the throat velum palatinum is normally closed. Through whole-denture undercut retention and accessory auxiliary retention, the prosthesis is firm in retention, teeth are not damaged, and the pressed film type palate lifting prosthesis can be conveniently taken down and worn.

Description

technical field [0001] The invention belongs to the technical field of voice rehabilitation medical devices, and in particular relates to a pressure-membrane palate-elevating prosthesis and a manufacturing method thereof. Background technique [0002] The pharyngeal velum mechanism is a series of complex mechanisms that separate the nasal cavity and the oral cavity, and is used to regulate functions such as pronunciation, swallowing, blowing, and sucking. It mainly consists of two parts, the soft palate and the pharynx. When it is at rest, the soft palate is drooping, so the passages of the nasopharynx and oropharynx are open to provide breathing; when it is in a state of movement, such as during swallowing, the middle 1 / 3 of the soft palate The posterior superiority lifts, the posterior pharyngeal walls on both sides move to the inside of the oral cavity, and the posterior posterior pharyngeal walls move forward to contact each other, forming a closed velum of the pharynx ...

AI Technical Summary

Problems solved by technology

[0005] At present, when the prosthesis is combined with speech therapy clinically, the cast-stented palate-elevating prosthesis is generally used, such as figure 1 As shown, the cast stent type prosthesis 4 includes a snap ring 1, a hard palate base 2 and a soft palate base 3 stuck on the upper posterior teeth on both sides of the patient, wherein the snap ring 1 and the hard palate base 2 are made of a metal material It is made by casting, and the soft palate base 3 is made of resin material. In use, the main disadvantages of the cast bracket type prosthesis 4 include: 1. Destruction of the teeth: it is necessary to prepare gaps on the rear molars on both sides of the patient, In order to cause irreversible damage to the healthy tooth through the clasp; 2. Insufficient retention: on the one hand, the retaining force of the clasp is limited, and on the other hand, the clasp deforms and the retaining force decreases after a period of use, resulting in cast bracket false teeth. The prosthesis is easy to dislocate; 3. The cast stent prosthesis is large in size, and the patient has a strong foreign body sensation and poor comfort; 4. The metal clasp is exposed when the patient laughs, which affects the appearance; 5. The manufacturing process is complicated and the production cycle is long. It needs to be sent to a denture processing factory for production; 6. The production cost is relatively high

For a long time, these problems have brought great distress to patients

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