Avoidance of Interaction between Impression Materials and Tooth Surface Treated for Immediate Dentin Sealing: An In Vitro Study

Materials

Mario Semenza¹  Bruna Sinjari²  Giovanna Murmura²  Gianmaria D’Addazio²  Tonino Traini²  Giorgio Di Vincenzo³  Sergio Caputi⁴ 

[1] implant dentistry, New York University, E 40th St 508, New York, NY 10016, USA;Department of Medical Oral and Biotechnological Sciences, University G. d’Annunzio Chieti-Pescara, Via dei Vestini 31, 66100 Chieti (CH), Italy;;Department of periodontics &Private practice, 26866 Sant’Angelo Lodigiano (LO), Italy;

关键词: immediate dentin sealing;    impression material;    adhesive dentistry;    prosthetic dentistry;    in vitro;   

DOI  :  10.3390/ma12203454

来源: DOAJ

【 摘 要 】

Immediate dentin sealing (IDS) is an advantageous approach for realizing adhesive restorations, but it interferes with the polymerization of impression material due to the oxygen-inhibition layer (OIL), which leaves residues of impression material on the teeth. The aim of this study is to identify a clinical surface cleaning protocol after IDS in order to achieve defect-free impressions. Sixty extracted human teeth were cut to expose fresh dentin and the IDS protocol was performed. Samples were divided into six groups where different surface cleaning protocols were made before taking impressions: G1S and G1P groups, IDS and silicone (S) or polyether (P) impressions; G2S and G2P, treatment with prophy paste and impressions; G3S and G3P, final cleaning phase with surfactant agent and impressions. Teeth were evaluated with a scanning electron microscope to identify the areas (expressed in mm²) where residual impression material was present. The results demonstrate a reduction of residues in the G2 groups and the total disappearance in G3 groups with statistically significant differences between them. Superficial cleaning protocols with the prophy paste and surfactant agent lead to the elimination of the interaction with impression materials and OIL. These results suggest a safe clinical protocol for obtaining defect-free impressions after IDS.

【 授权许可】

Unknown