Making points:

1. on the water to soften for 5 to 8 seconds， the water temperature is around 80 degrees. Production speed must be fast， see the braces sink immediately begins to soften out

2. General do the lower teeth， when put inside the mouth with his tongue while making inhale top， then hand pressure inside and outside， so that made it relatively close together.Be careful not to bite with his teeth

soften narrow braces， braces do not need too long to cover the posterior teeth can be， is too long it will stimulate the toat， causing nausea， excessive saliva