Metal braces are what we commonly refer to as dental crowns and are not harmful, but have some side effects.
Metal dental crowns are a kind of dental restorations, mainly used for teeth after root canal treatment or teeth with excessive defects, which can be easily dislodged using the filling method, and the crowns are made to be strong, durable and comfortable.
Metal crowns have certain side effects, long time wearing metal crowns, due to the metal by the oral saliva erosion, metal ion free, appearing black and blue gum edge, living pulp teeth can also produce micro-current effect, appearing tooth soreness, a small number of people also appear metal allergy phenomenon. When doing MRI, artifacts can easily appear.
At present, metal crowns are rarely used in clinical practice, and all-ceramic crowns are often used to make up for the shortcomings of metal crowns.
With metal crowns, if you have any discomfort, promptly seek medical attention, under the guidance of the doctor for examination and treatment, to make a suitable crown for your own teeth.