https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3056003/#__ffn_sectitle
Interesting study about suction/vacuum hold, open mouth posture and oral cavity pressure in each of the cases.
It may, therefore, be hypothesised that, with regard to the long-term stability of orthodontic treatment results achieved, orthodontic therapies may be more efficient if they are accompanied by additional training of the maintenance of physiological intra-oral pressure phases.
Precisely. Even practitioners who perform treatments designed to expand the palate rarely inform their patients of how important a good oral posture is. This is one of the possible reasons for why those who expand their palate using certain appliances, relapse to some degree afterwards. Professional treatment should be coupled with a good oral posture.
24 years old