Različne vrste prenosnikov za indirektno lepljenje nesnemnega ortodontskega aparata

Autor: Šušteršič, Neža
Přispěvatelé: Primožič, Jasmina
Jazyk: slovinština
Rok vydání: 2022
Předmět:
Popis: Uvod: Ortodontija in čeljustna ortopedija sta veji zobozdravstva, ki vključujeta zdravljenje nepravilnosti zob, nepravilnosti med zobnima lokoma in nepravilnosti obraznih struktur. Pri ortodontski terapiji se lahko, odvisno od vrste nepravilnosti, uporabljajo snemni ali nesnemni ortodontski aparati. Nesnemni ortodontski aparati se uporabljajo pri večjih ortodontskih nepravilnosti. Sestavljajo jih nosilci, žični lok in ostali aktivni elementi. Za dobre rezultate ortodontske terapije je izredno pomembna natančna postavitev nosilcev. Nosilce lahko specialist ortodont postavi po direktni metodi, se pravi neposredno na zob ali se nosilce postavi na mavčnem modelu ali računalniškem programu. Nato se izdela prenosnik, s katerim lahko terapevt natančno prenese položaj nosilcev na zobovje. Namen: Primerjava izdelave različnih vrst prenosnikov za indirektno lepljenje nesnemnega ortodontskega aparat Metode dela: Pregled strokovne literature na temo izdelave prenosnikov in laboratorijska izdelava različnih vrst prenosnikov. Rezultati: Izdelala sem prenosnike z uporabo metode postavljanja nosilcev na mavčnih odlitkih zobovja in tridimenzionalnih digitalnih posnetkih zobovja. Za prenos nosilcev z mavčnega modela in tridimenziolanlno natisnjenega modela sem za izdelavo prenosnikov uporabila silikonsko maso, etilvinilacetatno folijo (prožno in togo) ter prozoren vinil poliksilosan silikon. V računalniškem programu sem oblikovala dva prenosnika, ki sem jih tridimenzionalno natisnila iz prožnega materiala na osnovi smole. Razprava in zaključek: V izbrani literature je večkrat omenjeno, da je indirektna postavitev nosilcev, naj si bo na mavčnem ali digitalnem modelu, bolj natančna od direktne postavitve nosilcev. Ob postavljanju nosilcev ima metoda na mavčnem modelu več prednosti, saj omogoča boljši nadzor nad postavitvijo nosilca. Postavljanje nosilcev na digitalne modela zahteva boljšo orientacijo v virtualnem okolju. Kljub temu, ima postavljanje nosilcev na digitalni model prednosti in sicer dobro vodenje uporabnika skozi postopke programa, zmanjšanje človeške napake (vse meritve oddaljenosti nosilcev od posameznih ploskev zoba so vidne, kot tudi nagibi in zasuki) ter ob dovoljšnih izkušnjah uporabe programa, zmanjšanje laboratorijskih postopkov in časa izdelave. Z izdelavo prenosnikov, sem ugotovila, da je najprimernejši prenosnik za izdelavo na mavčnem modelu in na tridimenzionalno natisnjenem modelu prenosnik s kombinacijo tehnike folije in silikonske mase. Večjih razlik med tridimenzionalno natisnjenima prenosnikoma nisem ugotovila. Predstavljene tehnike izdelave prenosnikov imajo prednosti in slabosti, predvsem so zelo odvisne od znanja in usposobljenosti uporabnika, ter dostopnosti laboratorijskih aparatur. Introduction: Orthodontics and maxillofacial orthopedics are major branches of dentistry that include the treatment of dental abnormalities, abnormalities between dental arches, and abnormalities of facial structures. In orthodontic therapy, depending on the type of abnormality, removable or non-removable orthodontic appliances can be used. Non-removable orthodontic appliances are used for major orthodontic irregularities. They consist of brackets, a wire arch and other active elements. For good results of orthodontic therapy, the exact placement of the brackets is extremely important. Brackets can be placed by an orthodontist using the direct method, i.e. directly on the tooth, or the bracket can be placed on a plaster model or in a computer program. Then a transfer tray is made, with which the therapist can accurately transfer the position of the brackets to the teeth. Purpose: Comparison of the production of different types of transfer trays for indirect bonding of non-removable orthodontic appliances. Methods: Review of professional literature on the topic of transfer tray production and laboratory production of different types of transfer trays. Results: I made transfer trays using the method of placing a brackets on plaster model and three-dimensional digital printed model. To transfer the brackets from the plaster and three-dimensionally printed model, I used silicone mass, ethyl vinyl acetate film (flexible and stiff) and transparent vinyl polyxylose silicone. In computer program I designed two transfer trays, which I three-dimensionally printed from a flexible resin-based material. Discussion and conclusion: In the selected literature, it is repeatedly mentioned that indirect placement of brackets, be it on a plaster or digital model, is more accurate than direct placement of brackets. When placing the brackets, the plaster model method has several advantages, as it allows better control over the placement of the bracket. Placingbracketss on digital models requires better orientation in the virtual environment. Nevertheless, placing brackets on a digital model has its advantages, namely good guidance of the user through the program's procedures, reduces human errors (all the advantages of the distance of the brackets from individual tooth plates are visible, as well as tilts and twists) and, with sufficiently experienced users of the program, improves laboratory procedures and production time. With the making of trays, I found that the most suitable tray for a plaster model and a 3D printed model is a tray with a combination of foil and silicone material techniques. I did not find any major differences between the three-dimensionally printed trays. All presented techniques for making transfer trays have advantages and disadvantages, mainly depending on the knowledge and skills of the users, as well as the availability of laboratory equipment.
Databáze: OpenAIRE
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