Kraniofacijalne promene kod pacijenata II skeletne klase lečenih aparatom sa zavrtnjem za mezijalno pomeranje donje vilice
Craniofacial changes in patients with skeletal class II treated with appliance with screws for mesial shift of the lower jaw
Author
Ristić, Vladimir B.Mentor
Glišić, Branislav
Committee members
Šćepan, Ivana
Milosavljević, Željko
Vučinić, Predrag

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Uvod. Biološki najprihvatljivija metoda lečenja druge klase je modifikacija rasta
funkcionalnim aparatima. Aparat sa zavrtnjem za mezijalno usmeravanje donje vilice (M
blok) zahvaljujući svojoj konstrukciji ima osobine i funkcionalnog i aktivnog ortodontskog
aparata.
Cilj rada. Cilj istraživanja bio je utvrđivanje skeletnih i dentoalveolarnih promena, kao i
promena na mekotkivnom profilu nakon terapije M blokom u poređenju sa Frankel-ovim
regulatorom funkcije tip I i bionatorom po Balters-u tip I.
Metode rada. Istraživanjem je obuhvaćeno 70 pacijenata podeljenih u 3 grupe prema vrsti
korišćenog aparata (M blok, Frankel-ov regulator funkcije tip I, bionator po Balters-u tip I).
Pre terapije svakom od pacijenata uzeta je anamneza i urađen klinički pregled. Pre početka,
kao i na kraju terapije, urađen je ortopantomografski i profilni teleradiografski snimak i uzeti
su otisci za studijske modele. Na kraju terapije analizirane su promene u položaju i
razvijenosti kako gornje, tako i donje v...ilice, međuviličnih odnosa, promene na kranijalnoj
bazi i mekotkivnom profilu lica, kao i promene u položaju sekutića iTMZ-a.
Rezultati. Statistički značajne razlike dobijene su prilikom korišćenja M bloka u analizama
razvijenosti i položaja gornje vilice i donje vilice, međuviličnih uglova, dužine prednje i
zadnje kranijalne baze, pravca rasta lica, dužine prednje i zadnje visine lica, položaja gornje
usne u odnosu na estetsku liniju i položaja gornjih i donjih sekutića i TMZ-a.
Zaključak. M blok dovodi do preusmeravanja položaja gornje i donje vilice i korekcije II
klase u I.
Introduction. Biological most appropriate method of treatment class II is a modification of
the growth with functional appliances. The machine screw in the mesial direction of the
mandible (M block) due to design has features of both functional and active orthodontic
appliances.
Objective. The aim of the study was to evaluate the skeletal and dentoalveolar changes as
well as changes in soft tissue profile after treatment with M block compared with Frankel's
function regulator type I and Balters’ bionator type I.
Methods. The study included 70 patients divided into 3 groups according to the type of
device used (M block, Frankel's function regulator type I, Balters’ bionator type I). Before the
therapy each patient's medical history was taken and the clinical examination was performed.
At the beginning of the therapy orthopantomographic and profile cephalograph were shot and
impressions were taken for study models. At the end of treatment, the changes in the position
and development of b...oth the upper and lower jaw, intermaxillary relationships, changes in the
cranial base and soft tissue facial profile, as well as changes in the position of the incisors and
TMJ.
Results. Statistically significant differences were found when using the M block in the
analysis of the development and position of the maxilla and mandible, intermaxillary
angles, length of anterior and posterior cranial base, the direction of facial growth, length of
anterior and posterior face height, the position of the upper lip in relation to the aesthetic
line and position of the upper and lower incisors and TMJ.
Conclusion. M block leads to redirection of the position of the upper and lower jaw and
corrections of class II into class I.