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K i n e s i o g r a p h i c e v a l u a t i o n i n o r t h o d o n t i c p a t i e n t s a b c Fig. 13a–c Fig. 14 Figs. 13a–c The patient before and after treatment. Prepared spaces for the implants. (a) Before treatment. (b) Implant placement. (c) After treatment. Fig. 14 Example of the kinesiogram before (yellow) and after (violet) the patient’s treatment. Nevertheless, there is no one common approach to the decision on whether it is necessary to ex- tract teeth as long as such clinical situations continue to arise.4 In most cases, authors insist that tooth extractions are significant only for surgical patients. Furthermore, it is known that it is better not to perform tooth extractions with border cases in order to avoid further complica- tions.9 We highly agree with authors who suggest provision of nonextraction orthodontic treatment by using finishing wires of a particular material, size and arch form. The main determinants of final arch form and dimension appear to be the original muscular and occlusally related arch form and dimension and the amount of crowding to be re- lieved.30 Evident changes in soft tissue and den- toalveolar characteristics appear with tooth ex- traction than is the case with dental arch expansion and tooth movement. Also, several studies have been conducted to estimate the effect of dental arch length reduction (owing to dental extractions, dental agenesis and dental malpositions) during orthodontic treatment on the upper airway development.31 To our regret, there are no scientific reports on changes to the TMJ, muscle system and man- dibular movements after orthodontic treatment with extraction. However, in our opinion, these indicators are more important than esthetic in- dicators. Esthetic indicators will be harmonious only when both morphological and functional indicators are taken into account. All the methods for orthodontic research can be considered as a background for making a de- cision on further treatment and precise conse- quence assessment. The more initial scientific planning is carried out, the more effective the 50 Volume 3 | Issue 2/2017 Journal of Oral Science & Rehabilitation