What Are Snap-On Dentures?

Precision attachment dentures are suitable for removable dentures. Using precision attachment technology, exquisite and lightweight components are used to improve wearing comfort and increase retention. Precision attachments are classified and complete, corresponding to different conditions of patients, and can reach the upper jaw. It fits tightly, without pressure, without affecting daily life.

Precision attachment dentures

Right!

Precise attachment dentures are suitable for removable dentures, using precision attachment technology to improve with delicate and lightweight components

Precise attachment

Indications:

Loss of lateral or bilateral free, especially suitable for patients with smaller buccal and tongue diameters, and patients with longer free ends or shorter vertical distances.

Fast food precision attachment

Indications:

Unilateral and bilateral free ends are missing. Residual roots are retained to cover dentures. Local consecutive 2 or more teeth are missing.

Post precision attachment

Indications:

The dentition defect with unilateral and bilateral free loss and small vertical distance is repaired by combined implantation.

Rod precision attachment

Indications:

Retain stubble coverage

1. Oral examination, treatment plan and restoration design

(1) Oral hygiene status.

(2) Abutment status. The number of abutments, morphology, periodontal status, and degree of caries are all considerations in treatment design. Observe the periodontal and apical state with X-ray dental film.

Attachments with equal retention are usually selected on both sides of the dental arch, and the number of abutments is as equal as possible, generally 1 to 2 abutments on each side. If the shape of the abutment is unfavorable for retention, it is necessary to modify the shape, if necessary, to inactivate the pulp and perform a complete root canal treatment to modify the shape of the crown. In particular, for those with too long crowns and improper crown-to-root ratios, after dental pulp inactivation and root canal treatment, the crown can be amputated, suitable attachments can be placed, or double crown retainers can be used.

Select a healthy periodontal abutment, or begin to repair after periodontal treatment has subsided. For teeth with a certain degree of looseness, if there is sufficient root length and the height of the bone tissue around the root, the crown-root ratio can be improved by cutting the crown and after periodontal treatment, and the degree of looseness within 1 degree can be observed. Abutment. According to clinical observations, there is a slight loosening of the abutment. With the use of rod attachments or double crown splints, the looseness is significantly reduced or disappeared.

(3) Distance between jaws. When the patient performs an oral examination for the first time, a research model must be taken to determine the vertical distance and the relationship between the median and maxilla. The model's maxillary support is carefully analyzed.

(4) Length of free end saddle base and alveolar crest status in the missing tooth area. Elders with free-end saddle base in the missing tooth area should pay attention to reduce the torsion of the abutment. Elastic attachments can be selected, and care should be taken to ensure that the restoration has sufficient strength across the midline area. When the alveolar ridge mucosa is soft, a compression impression should be taken to prevent the abutment from overloading.

2. Abutment preparation There are three types of tooth preparations using attachments: intra-root preparation, intra-crown preparation and extra-crown preparation.

O) Intra-root preparation: Intra-root preparation is required when using attachments on the root. In order to obtain maximum retention and stability, pay attention to the following points: The root post should be extended as much as possible according to the root condition. The root surface is reduced to the level of the gums in order to reduce the fulcrum and expand the space for attachment. In order to increase retention, prepare the neck shoulder slope. In order to prevent rotation, a groove is made at the mouth of the root canal.

(2) Intracoronary preparation: Intracoronary preparation is required when applying intracoronal attachments. The prepared space should be about 0.6 mm wider and 0.2 mm deeper than the female form of the attachment, so that the casting is complete and installed correctly. Allow sufficient space on the tongue / cross-wall of the crown for the opposing arm. In addition, it should be noted that the box shape of the tooth preparation is parallel to the total seating path of other abutments.

(3) Extra-crown preparation: The dental preparation for placing the out-of-crown attachment is basically the same as the conventional full crown preparation. The walls of the prepared teeth should be close to parallel to maximize crown retention. The crown must be of sufficient height to meet the requirements of the crown attachment.

3 Take mold with fine impression material (such as silicone rubber impression material, etc.)

1. Proper design of the denture is the key to success. When designing, you should pay attention to selecting the appropriate attachment body, including the precision attachment denture making materials and manufacturing process, in order to obtain a strong, beautiful, and good function.

2. Apply attachment

1. Poor oral hygiene.

2. The elderly and the disabled who are incapable of living.

3 Abutment periodontitis is not treated and / or root canal treatment is incomplete.

4 There is no inter-jaw distance required to place attachments.