Impact of polishing system on surface roughness of different ceramic surfaces after various pretreatments and bracket debonding.

ABSTRACT:

Objective

Evaluating various polishing methods after bracket debonding and excessive attachment material removal for different ceramics and pretreatments.

Material and methods

Zirconia (ZrO2), leucite (LEU) and lithium disilicate (LiSi) specimens were pretreated with a) silica coated alumina particles (CoJet); LEU and LiSi additionally with b) hydrofluoric acid (HF), c) Monobond Etch&Prime (MEP), d) silicium carbide grinder (SiC) before bracket bonding, shearing off, ARI evaluation, excessive attachment material removal and polishing with i) Sof-Lex Discs (Soflex), ii) polishing paste (Paste), iii) polishing set (Set). Before/after polishing surface roughness (Ra) was measured with a profilometer. Martens hardness parameter were also assessed.

Results

Irrespective of

SUBMITTER: Jungbauer R 

PROVIDER: S-EPMC10415457 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature