What Are Acrylic Dentures?

What is an active denture? Introduces the population to which the active denture is adapted, the advantages and disadvantages, and the maintenance of the active denture.

What is a movable denture

The professional names of movable dentures are movable dentures and removable dentures, including removable partial dentures and full dentures. It uses the remaining natural teeth, the mucosa and bone tissue under the base as the support, relies on the retainer and base of the denture to retain, restores the shape and function of the missing tooth with artificial teeth, and restores the defective alveolar with base material. The soft tissue morphology of the iliac crest, jawbone and its surroundings is a type of restoration that patients can remove and wear by themselves.

Beijing Shengbei Dental Hospital has a wide range of active dentures:

Various dentition defects and missing dentition

2. Tooth loss with alveolar, jaw or soft tissue defects

3. Need for transitional dentures and gap retainers

4. Periodontal splint effect

5. Need to restore vertical distance

6. Those who need immediate dentures and makeup dentures

Who should not use movable dentures:

1. People with mental illness who cannot take care of themselves, patients with inconvenience

2. Those who are allergic to the material of the denture, and the feeling of foreign body is obviously insurmountable

3. Severe dental, periodontal or mucosal lesions that have not been effectively controlled

I. Classification of removable partial dentures

1 tooth-supported dentures

There are remaining natural teeth at both ends of the gap, and the force on the denture is mainly borne by the natural teeth.

2 mucosa-supported dentures

The force on the denture is mainly borne by the mucous membrane and the alveolar bone underneath it. Because the remaining teeth are loose or the occlusion is too tight, no support is provided.

3 tooth-and mucosa-supported dentures

The force on the denture is shared by the natural tooth, the mucosa, and the alveolar ridge.

Classification by denture manufacturing methods and materials

1 Plastic glued movable denture

The dentures are mainly made of methacrylic resin and are held in place by bent steel wire retaining rings. The price is low, but the size is large and the application range is wide.

2 metal cast bracket type movable denture

It is generally composed of a metal integral casting bracket and a small amount of plastic, which is complicated to teach and costs more than a plastic glued removable partial denture, which is sturdy and durable, and has a small volume.

small. The indication is relatively strict.

Active Dentures FAQ

1 Pain is the most common problem: it includes pain in the abutment and soft tissue. Pain in the abutment is usually caused by excessive stress or lateral force outwards. Soft tissue pain is mostly due to the edges of the base being too long and sharp, and there are small tumors on the tissue surface of the base. There are also bone tips or bony processes and epiphyses in the alveolar ridge, forming a concave tissue, covering the mucous membranes thinly, and squeezing dentures. Caused by the sinking of the pressure base and the sharpness and abrasion.

2 Poor retention and stability, mainly manifested as: bouncing, the snap ring does not enter the undercut area of the abutment; warping, swinging, up and down movement, the reason is that the snap ring body does not fit with the base, indirect retention Improper placement, occlusal support, retaining ring forms a fulcrum on the tooth surface, the retaining ring has no retention force; the base is not tightly attached to the tissue, and the edge is not well closed; the abutment crown is small or tapered Poor retention; Improper arrangement of artificial teeth, warping during occlusion; The edge of the base is too long, which affects soft tissue activity.

3 Poor chewing function of dentures may be related to the poor appearance of the artificial occlusal surface, poor denture occlusion, too low vertical distance, and poor abutment and alveolar ridge conditions.

4 Difficulty in picking: The snap ring is too tight, the base is close to the tooth surface, and the base is not cushioned enough in the concave area. The patient does not master the direction and method of picking the denture, which can cause difficulty in picking.

5 Food impaction: Impaction and food retention between the denture and the tissue, the original base is not close to the tissue, the snap ring is not close to the abutment, and there is a gap between the base and the natural tooth, which can cause food Impaction.

6 Unclear pronunciation: As the denture is worn, the oral space is reduced, the tongue movement is limited, and there is a temporary maladjustment, which often causes pronunciation problems. Can get used to it after a period of training.

7 Cheek bite, tongue mucosa: The upper and lower posterior teeth are too small to cover the cheek, and the posterior teeth of the mandible are skewed to the side of the tongue or the occlusal plane is too low.

8 Nausea and saliva increase: Wearable maxillary removable dentures, because the trailing edge of the base is too stretched, is too thick, or the trailing edge of the base is not close to the mucous membrane, saliva stimulation between the two causes nausea. Saliva is mostly caused by unaccustomed.

9 aesthetic problems: there may be aesthetic problems due to factors such as snap rings.

Patient Frequently Asked Questions

1 I have a missing tooth. Is it appropriate to have a removable denture?

Answer: Of course, movable dentures can be used, it has advantages and disadvantages. The advantage is lower cost and time, which can meet lower functional and aesthetic requirements. However, the shortcomings are also obvious. In general, the function and beauty are not as good as the implant denture repair and fixed dentures. They often have a foreign body sensation. They need to be removed and cleaned daily, and they need to be replaced after a few years. If the patient is acceptable in terms of cost, time, and physical conditions, implant dentures are generally preferred.

2 Does the movable denture have a strange smell?

Answer: Generally, it is not available, but if you don't pay attention to cleaning, calculus and food residues will adhere to the denture, which may cause a bad smell.

3 What should I do if I have pain when wearing a denture?

Answer: Generally, you should return to the hospital in time for treatment. You must not handle it yourself.

4 How to choose the material of movable denture?

Answer: The movable denture material includes the base plate and artificial tooth material. The simple classification includes plastic plate and metal plate. Generally, the latter is thinner and stronger. Artificial teeth of movable dentures are generally made of resin, and have different hardness and abrasion resistance.