Treatment of alveolar bone in prosthodontics
1. eliminate the obstructed bone process
After tooth extraction, bone tip or bone process can be formed due to uneven bone absorption. If after a period of time, it still does not subside, and there is pressure pain, or there is obvious concave, which prevents the denture from being removed and worn, the alveolar bone should be repaired, generally, it is better to repair about 1 month after extraction.
2. osteogenic process repair
The bone protrusion is the bone protrusion of normal bone, and there is no difference between the histology and the normal bone tissue. The overlarge bone protrusion can cause tissue break and pain when the denture is removed and worn, and the serious one cannot be worn into the use.
Before repair, adequate estimation and judgment shall be made and repair shall be carried out in time. The bone protrusion often occurs in: ① the lingual side of the premolar is symmetrical on both sides, and it can also be one side, and its size is different, also known as the mandibular protrusion; ② The middle palate seam is cristae like protuberance, also known as palatal protrusion; ③ The overgrowth of the nodule in the maxilla can form a larger bone cavity. For the enlargement of bilateral maxillary nodule, it is often necessary to repair one side of the maxillary nodule to solve the problem of preventing the denture from being placed.
3. vestibular groove deepening
If the alveolar ridge is too absorbed and the denture is in poor position, the vestibular groove deepening operation can be performed. The operation can increase the relative height of alveolar ridge by changing the attachment position of mucosa and muscle (move up in the upper jaw position and down the jaw position), thus increasing the extension range of the denture base, expanding the contact area of the base, and enhancing the stability and retention force of the denture.
4. alveolar ridge reconstruction
This operation is a method to treat the serious absorption and atrophy of alveolar ridge without teeth. The main reconstruction method in 1960s-1970s was autogenous bone transplantation and augmentation, but it was abandoned gradually because of the imperfect bone resorption and reconstruction of alveolar ridge. Since 1970s, the increase of hydroxyapatite particles or the reconstruction of alveolar bone have become a better substitute for bone tissue.
After tooth extraction, bone tip or bone process can be formed due to uneven bone absorption. If after a period of time, it still does not subside, and there is pressure pain, or there is obvious concave, which prevents the denture from being removed and worn, the alveolar bone should be repaired, generally, it is better to repair about 1 month after extraction.
2. osteogenic process repair
The bone protrusion is the bone protrusion of normal bone, and there is no difference between the histology and the normal bone tissue. The overlarge bone protrusion can cause tissue break and pain when the denture is removed and worn, and the serious one cannot be worn into the use.
Before repair, adequate estimation and judgment shall be made and repair shall be carried out in time. The bone protrusion often occurs in: ① the lingual side of the premolar is symmetrical on both sides, and it can also be one side, and its size is different, also known as the mandibular protrusion; ② The middle palate seam is cristae like protuberance, also known as palatal protrusion; ③ The overgrowth of the nodule in the maxilla can form a larger bone cavity. For the enlargement of bilateral maxillary nodule, it is often necessary to repair one side of the maxillary nodule to solve the problem of preventing the denture from being placed.
3. vestibular groove deepening
If the alveolar ridge is too absorbed and the denture is in poor position, the vestibular groove deepening operation can be performed. The operation can increase the relative height of alveolar ridge by changing the attachment position of mucosa and muscle (move up in the upper jaw position and down the jaw position), thus increasing the extension range of the denture base, expanding the contact area of the base, and enhancing the stability and retention force of the denture.
4. alveolar ridge reconstruction
This operation is a method to treat the serious absorption and atrophy of alveolar ridge without teeth. The main reconstruction method in 1960s-1970s was autogenous bone transplantation and augmentation, but it was abandoned gradually because of the imperfect bone resorption and reconstruction of alveolar ridge. Since 1970s, the increase of hydroxyapatite particles or the reconstruction of alveolar bone have become a better substitute for bone tissue.