Root Canal Therapy Series

What is root canal therapy?

Root canal therapy, also known as "nerve killing", is an effective method for treating diseases such as pulp disease and periapical periodontitis. The root canal is cleaned and shaped by using professional instruments, and then strictly disinfected and sterilized, and finally tightly filled.

Its purpose is to control infection and prevent the occurrence of periapical periodontitis, and it can also promote the healing of existing periapical lesions.

The process of root canal therapy includes the following steps:

Root canal flushing products

1. sodium hypochlorite disinfectant

1% sodium hypochlorite disinfectant, 3% sodium hypochlorite disinfectant

Application: dissolves organic matter such as residual marrow, plays an antibacterial and antibacterial role, and avoids causing patients a second pain.

① Broad antibacterial spectrum, good antibacterial effect

② Effectively dissolves fresh or necrotic dead marrow, residual marrow

2. Chlorhexidine gluconate antibacterial solution

0.2% chlorhexidine antibacterial solution, 2% chlorhexidine antibacterial solution

① Broad spectrum antibacterial sterilization

② It has outstanding antibacterial effect on enterococcus faecalis

(Root canal retreatment and refractory periapical inflammation)

③ No cytotoxicity, no irritation to apical tissue

2. Root canal sterilization and lubrication products

EDTA root canal disinfection lubricating gel

(10% carbamide peroxide, 18% EDTA)

Application: used for lubrication during root canal preparation, auxiliary instruments to expand the root canal

① Contains 10% urea peroxide, allowing instruments, chemical preparation and disinfection and sterilization to be carried out simultaneously, making disinfection more thorough

② Softening of the root canal wall, rapid decalcification and softening, root canal preparation

③ Needle file instrument protection, lubrication and cooling, needle file instrument is not easy to break

④ New water-soluble gel, easy to clean, no residue,

⑤ Clean root canal stains, effectively remove root canal wall smear layer and dentin debris

Application: 1. Temporary sealing and disinfection of root canals 2. Chronic root canal inflammation that does not heal for a long time (especially suppurative inflammation) 3. The first choice of sealing material for root canal re-treatment

① Completely inhibit the growth of Enterococcus faecalis, with lasting antibacterial ability and no toxicity to periapical tissues.

② No damage to dentin, avoid the decrease of dentin microhardness and roughness, reduce the occurrence of microleakage, and make tooth tissue safer.

③ Inhibit the degradation of dentin collagen fibers, maintain dentin bonding, slow down the decrease of dentin and resin bonding, and facilitate the need for repair after root canal treatment.

3. Temporary root canal sealing materials

Calcium hydroxide root canal disinfection paste (single component)

Injection type

Application: direct pulp capping, root canal sealing, temporary filling materials for infected root canals

① Water-based pre-made paste, no mixing required, easy to use ② PH ≥ 12, excellent antibacterial ability

② Easy to introduce and remove

③ X-ray blocking

④ Highly biocompatible

⑤ Does not contain phenolic preparations, does not affect the polymerization of resins and restorations

⑥ Helps to form secondary dentin

⑦ Effectively replace CP/FC

⑧ Clinical competitive product experimental comparison

Calcium hydroxide root canal disinfection paste (two-component)

Mixable type

Application: direct pulp capping, root canal sealing, temporary filling materials for infected root canals

① Powder-liquid mixing, simple operation

② PH ≥ 12, excellent antibacterial ability

③ Easy to introduce and easy to remove

④ High biocompatibility

⑤ Does not contain phenolic preparations, does not affect the polymerization of resin and restoration

⑥ Helps to form secondary dentin

⑦ Effectively replace CP/FC