Tooth piercing is not necessarily open pulp, there may be teeth with caries, also need to be pierced, it is recommended that the best by a professional regular dentist to operate.
Clinical dental cavity means that the use of high-speed turbines and other dental special handpieces will be thoroughly cleaned up the location of dental caries, preparation of the cavity shape after moisture sterilization, this process of dental cavity preparation, often referred to as drilling. This process is often referred to as cavity preparation. Generally, after the cavity is made, the tooth can be filled and restored with a specialized filling resin or other material.
If tooth decay has led to pulp infection, the teeth need to be local anesthesia under local anesthesia, and then in the tooth surface drilling, thorough exposure of the pulp cavity, and then choose to use a special tool to thoroughly clean up the infected material and pulp. This process of drilling is clinically known as pulp opening.
Therefore, drilling a hole in a tooth does not necessarily mean opening the pulp, but may also be an operation such as preparing a cavity before filling.