Ispitivanje čvrstoće svezivanja materijala za punjenje korijenskih kanala temeljenih na biostaklu

master's thesis

• Title (english): Investigation of bond strength of root filling materials based on bio-glass
• Author: Maja Namjesnik
• Mentor: Ivana Miletić (mentor)
• Committee member: Ivana Miletić (predsjednik povjerenstva)
• Committee member: Silvana Jukić Krmek (član povjerenstva)
• Committee member: Anja Ivica (član povjerenstva)
• Granter: University of Zagreb; School of Dental Medicine; Zagreb
• Defense date and country: 2024-07-05, Croatia
• Scientific / art field, discipline and subdiscipline: BIOMEDICINE AND HEALTHCARE; Dental Medicine; Endodonics and Restorative Dentistry

Abstract

Mehanička i kemijska obrada te punjenje korijenskih kanala sastavni su dio endodontske terapije. Punila koja se koriste u fazi punjenja korijenskog kanala imaju za cilj hermetički zabrtviti endodontski prostor i spriječiti stvaranje uvjeta za daljnji razvoj bakterija. Na tržištu je dostupan velik broj punila različita sastava, no danas se sve više ističu prednosti primjene bioaktivnih materijala. Bolja biološka i fizičko-mehanička svojstva očituju im se u biokompatibilnosti, antimikrobnom djelovanju, ubrzanom cijeljenju periapikalnog tkiva te odlaganju kristala hidroksiapatita zbog čega ostvaruju kemijsku vezu s dentinom. Istraživanje je provedeno kako bi se ispitala čvrstoća svezivanja novog materijala temeljenog na polidimetilsiloksanu uz dodatak biostakla u sastav materijala (GuttaFlow bioseal) i usporedila sa standardnim materijalom temeljenim na polidimetilsiloksanu (GuttaFlow 2). Za ispitivanje je korišteno 14 jednokorijenskih zuba koji su obrađeni kemo-mehanički i podijeljeni u dvije ispitne skupine punjene s dva različita materijala. Uzorci su uloženi u akrilatnu smolu te izrezani na šnite debljine 1 mm Isomet pilom. Od svakog zuba dobiveno je u prosjeku 8 uzoraka. Sila potrebna za lom pojedinog uzorka ispitana je „push out“ testom. Rezultati ovog istraživanja pokazali su da nema razlike u čvrstoći veze između dentina i ispitanih materijala.

Abstract (english)

Mechanical and chemical treatment and filling of root canals are integral parts of endodontic therapy. The fillers which are used in the root canal filling phase aim to hermetically seal the endodontic space and prevent conditions conducive to further bacterial growth. A large number of fillers with different compositions are available on the market. However, nowadays the advantages of using bioactive materials are increasingly emphasized. Better biological and physical-mechanical properties are manifested in their biocompatibility, antimicrobial effect, accelerated healing of periapical tissue, and the deposition of hydroxyapatite crystals, due to which they achieve a chemical bond with dentin. The research was conducted to test the bond strength of a new material based on polydimethylsiloxane with the addition of bio-glass in the composition of the material (GuttaFlow bioseal) and to compare it with a standard material based on polydimethylsiloxane (GuttaFlow 2). For this research, fourteen single-rooted teeth were chemo-mechanically processed and divided into two test groups filled with two different materials. The samples were embedded in acrylic resin and cut into 1 mm thick slices using an Isomet saw. An average of 8 samples was obtained from each tooth. The force required to break an individual sample was tested with a "push out" test. The results of this research showed that there is no difference in bond strength between dentin and the tested materials.

• Keywords: endodoncija; liječenje korijenskog kanala; biostaklo; dentin; dentinski adhezivi; čvrstoća svezivanja
• Keywords (english): Endodontics; Root Canal Therapy; bio-glass; Dentin; Dentin-Bonding Agents
• Language: croatian
• URN:NBN: urn:nbn:hr:127:327206
• Study programme: Title: Integrated undergraduate and graduate university study of Dental Medicine; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: doktor dentalne medicine (doktor dentalne medicine)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-06-25 09:57:39