All thumbs! my dental practice, meanwhile in Japan.

In my opinion, an extremely important step in root canal treatment is root canal irrigation. Cleaning the inside of the root canal is a more difficult procedure than the dentist may think and, in practice, often results in inadequate cleaning. Root canal irrigation is not as simple as simply placing fluid into the root canal. As the name "irrigation" implies, it is the act of physically and chemically removing the dirt inside the root canal using a cleaning solution - some kind of liquid. The root apex is the most important area of the root canal where cleaning is required.  In root canal treatment, aseptic preparation of the root canal by the dentist can prevent apical periodontitis. Once the root canal has been ideally enlarged with a NiTi file, it must then be thoroughly cleaned; if there is debris, it should be physically flushed out, and if there is inorganic or organic residue, it must be chemically cleaned. In addition, the root canal must be perforated and patency mus...

  The sealer-puff is a characteristic appearance of sealer overflow outside the apical foramen on the confirmatory dental photograph after root canal filling.  This is caused by a small amount of sealer overflowing outside the apical foramen when the dentists pressurize the area around the apical constriction to achieve a tight root canal filling. It is also caused by sealer penetrating the lateral branches of the apical-delta due to pressure at the apex. The sealer puff is, after all, an overflow of foreign material into the periapical tissue of the root apex. Of course, dentists must always try to prevent foreign material to overflow from the root apex into the apical periapical tissue. However, if we take into account the cause of sealer puffs, we can evaluate them from a different perspective. Sealer puffs are... The area around the root apex is properly cleaned and free of debris, ensuring the patency of the root canal. And Be caused by the application of a good flow of s...

In root canal treatment, the concept of working length is of great importance. The length from the apex to the reference point is defined by the dentist, and he or she proceeds with the file manipulation at that length. …working length, reference point, rubber-stopper, I hate those!  This is because it is likely to be an inaccurate operation.  I believe that the hidden reason why not a few dentists dislike root canal treatment is because of these "troublesome analog rules" on endodontics.  In particular, I did not feel confident in manipulating the NiTi file as per the working length, relying on the rubber-stopper, and I felt very uncomfortable. I have always been frustrated that I wish I could manipulate the NiTi file while measuring its length in real-time with the EMR, just like the hand SS files. To link the NiTi file to the EMR, the shortcut to a solution is to have the EMR clip grasped by the NiTi file. However, this would make the NiTi file extremely difficult to h...

 An important aspect of root canal cleaning is just disinfection, especially at the root apex. This consists of removal of the smear layer of the dentinal wall and disinfection with sodium hypochlorite solution in the apical delta. Normally, dentists perform positive pressure irrigation using a syringe for root canal irrigation. They use saline solution, hydrogen peroxide solution, EDTA, or sodium hypochlorite solution as the cleaning solution. If the needle is thin enough to rinse deep into the root canal, dentists will usually feel that can clean the root canal. However, the reality is that the cleaning is not satisfactory. This is because only positive pressure irrigation makes it difficult to exert the chemical action of the irrigants. In particular, a narrow path such as the apical delta is difficult for the cleaning solution to reach. Therefore, it will be necessary to use some other method in addition to positive pressure washing. The agitation of root canal irrigation is. T...

 The thinking of the negative, that is not good for a good life. But, probably, at least I or you think following. It’s not that the past was good. Only in the past was there anything good. We have to grab the bright future. This is something that each of us living in the world can achieve if we work a little harder. The effort required to do so can be as little as 30 minutes of reading instead of 30 minutes of watching a smartphone or TV.

 Summary •This is the first endomotor you should buy! •Easy to use, no stress in handling. •Robust and trouble-free! The E-CONNECT S is one of the endomotor that I have been using for several years. It is cordless, easy to handle, and highly versatile to use with any NiTi file. Surprisingly, it has been about five years since this product was introduced to the market, and I have yet to find an end motor with better performance than the E-CONNECT S. In the future, possible improvements in end-motor functions will mainly be in the pursuit of better external design and smaller and lighter weight. This is because the functions that an endomotor should have when using NiTi files are almost complete. The ability to switch between rotary and reciprocating motion, and the ability to finely program the rotation speed and torque settings would allow most of the world's NiTi files to be used. All that was needed was a good, sturdy, and reasonably priced endomotor. You do not have to need to r...

Modern rivers have become large drainage channels. The rain that falls on our living area is pushed away from the drains into the rivers as an obstruction. This is because there is no more space for the rain to soak into the soil in our living areas. The result of forgetting to return the rain to the ground is the excessive amount of water flowing into the rivers, and when the limit is exceeded, the rivers overflow and flood the city.  This is not good, so we have raised the sides of the river and armed them with concrete to prevent the water from overflowing. It can be said, a forceful flood control. Hence, when the overflowing; limit is exceeded, we have to accept the enormous flood damage. River overflows are caused by narrow, shallow, or slow-flowing rivers. But what I think is important is the amount of water flowing into the river per unit of time, because if it is too large, the river cannot handle the amount of water flowing into it, and it will easily overflow. The key to ...