Several problems of calcium hydroxide root canal therapy sealing medicine

1. Sealing time: 1~3 weeks for the sealing time, 1~2 weeks for ordinary saline paste, and about 3 weeks for VITAPEX to achieve the best effect. If it is too long, it will be useless, but it will not produce adverse reactions, the worst The result is that the paste absorbs the inflammation and recurs. Root filling of deciduous teeth is not included in this discussion

2. In fact, root canal induction does not necessarily depend on calcium hydroxide. I wonder if you have done some pulp treatments that have been eliminated after pulp treatment or plasticization for some reasons. Some root canals are also closed, and most of these root canals are not the root canals of the disease. The root canals with unobstructed apical holes in other root canals of multiple teeth are the source of inflammation, so I personally think that the pulp is removed and the infection is completely After remission, the apical foramen will naturally be sealed by mature or immature cement secreted by cementoblasts, completely isolating the pulp cavity from the periapical region. Sealing calcium hydroxide only plays a role of slow disinfection, and long-term sealing will not have an adverse effect on the root tissue. At the same time, it is easy to remove when perfect root therapy is needed. 3. It can be reconciled with iodine glycerin. The effect is indeed good, and it is easy to shape and transport into the root canal, but remember to try not to overcharge, otherwise the pain will be more obvious. For some patients who have just turned negative from percussion, he may be concerned about this The pain is very disgusting, so be careful! Timing of drug sealing: As long as it is not in the acute attack period, as long as there is no obvious exudation, as long as it is not prepared for one-time root filling, as long as it is not allergic to the ingredients of the drug. I personally think that all medicines can be sealed. More than 1 week.

4. Whether the effects and methods of calcium hydroxide sealing medicine of different brands are different, I am not good to comment on this, but I think that the effect of domestic root canal sealing medicine is also ok, maybe it is not stubborn.

5. Whether calcium hydroxide can be overcharged beyond the root tip, I think it is not a big problem for overcharge, but the purpose of overcharge disinfection cannot be used as long as the root canal is filled. The reason is that overcharging can cause obvious pain. Although this pain can disappear, it will affect the image in the eyes of the patient. 6. For patients with apical periodontitis, after a perfect sensory cleaning, a small amount of paste is necessary for filling. First, it helps to seal the apical foramen. Second, a small amount of overfilling The paste is helpful for the healing of apical lesions. Third, the overfilled paste will be absorbed. Of course, there are some that are not absorbed.

7. In order to fill the root canal tightly, it is of course necessary to remove the calcium hydroxide before root filling, and to rinse and absorb dry with saline, make sure that there is no obvious pain and exudation before filling the root canal. When you do not plan to continue to seal the medicine, there is no need to rinse the root canal with irritating substances such as hypochlorous acid and hydrogen peroxide. The concept of sterility when cleaning the root canal is necessary, but it is guaranteed by rinsing and blotting. Even if a small amount of bacteria will be brought into the root canal, it will be wrapped by the tightly filled root canal paste and gutta-percha, which will not become the source of irritation. Things.

8. The sealing time is generally 1 to 2 weeks. Calcium hydroxide is a contact anti-inflammatory drug. The drug in the acute exudation period will not have any effect if it is locally absorbed within 2 weeks. Root canal disinfection is usually two weeks, but it can be used as a root apex inducer for 6-12 months. The timing of dressing change is determined by changes in the apical foramen and the outcome of the lesion. Different brands of calcium hydroxide have different components. They are used as vital pulp capping agents, indirect pulp capping agents, inducers, and root canal disinfection. For patients with acute and chronic apical inflammation, the root canal can be supercharged to the outside of the root apex, and local disinfection can be performed. If this is done, the prognosis will promote the healing of the fistula, the supercharged part is absorbed, and the root tip is sealed (clinical observation) .

9. Iodoform can be added to the blending with saline (the dryness is to maintain a certain fluidity, while the screw filler can stir up some), the iodized glycerin is not blended, and the calcium hydroxide overfilling cases have recent discomfort It is more common but unnamed and painful. Calcium Hydroxide Overcharge Many fingers have severe inflammation of the apical apex, and the apical foramen has been destroyed. It is easy to overfill with the paste, and the apical foramen is not destroyed. If the structure of the anatomical apical foramen is good, it is not necessary to overcharge. It is worth noting that there are data showing that about 1 year after the use of CaOH root filling, the root strength has dropped to half of the original value. Calcium hydroxide (calciumhydroxide, Ca(OH)2) Calcium hydroxide water preparation——Cavital calcium hydroxide silicone oil (glycerin) preparation——Vitapex v Contact and permeability root canal disinfectant Ca(OH)2→Ca2+ +2OH- v has a strong alkaline PH 9~12 v function:

1. It has a killing effect on a variety of bacteria in the root canal and dentin tubules

 2. Low irritation, safe, non-toxic, non-allergenic

 3. It can promote the repair of the periapical tissue and the closure of the root apical pores. The effect of OH- (pH 9-12) destroys the bacterial growth environment, makes it inactive, neutralizes the acidic products produced by the bacteria, interferes with the activity of endotoxins, improves ALP activity, and promotes cells Proliferation and differentiation. The role of Ca2+ Ca2+ increases capillary permeability and can induce cell differentiation. Ca2+ through the cell membrane can promote matrix mineralization. Increased intracellular Ca2+ concentration can activate a variety of cell physiological and biochemical processes. vNote:

 1. The drug must be delivered to the root tip and contact with the periapical tissue

2. The sealing time is 1-2 weeks, until the shadow disappears from the apical circle