Open Journal of Stomatology

Volume 8, Issue 6 (June 2018)

ISSN Print: 2160-8709   ISSN Online: 2160-8717

Google-based Impact Factor: 0.49  Citations  h5-index & Ranking

Evaluation of an Orthodontic Adhesive with Combined Primer and Composite

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DOI: 10.4236/ojst.2018.86020    1,530 Downloads   4,132 Views  Citations

ABSTRACT

Objectives: To investigate the efficacy of a new orthodontic bonding system that incorporates the primer solution in the adhesive. Materials and Methods: 90 anterior bovine teeth were divided in three groups: in Group I, brackets were bonded with Transbond XT system, in Group II with GC Ortho Connect which incorporates the primer in the adhesive, and in Group III, a single layer of primer was applied on the teeth before bonding the brackets with GC Ortho Connect. After a 24-hour latency period, Shear Bond Strength (SBS) and Adhesive Remnant Index (ARI) were measured. In cases with remnants left mainly on the bracket base, energy dispersive X-ray (EDX) spectrometry was performed in order to determine the presence of calcium particles. Selected cases were examined with Scanning Electron Microscopy (SEM) analysis and in nanometer scale with a confocal visible light microscope (μsurf revolver, NanoFocus AG, Germany). Results: The mean SBS values were 7.25 ± 0.58 MPa for Group I, 6.57 ± 0.50 MPa for Group II and 7.33 ± 0.56 MPa for Group III. These differences were not statistically significant (p = 0.562). ARI evaluation showed that the debonding failure happened more frequently within the adhesive interface in Group II, whereas this occurred more often at the tooth-adhesive interface in Group III. However, statistical analysis of the ARI scores showed no significant difference in adhesive remnants among the three groups (p = 0.078). Conclusion: The GC Ortho Connect bonding system can be efficiently used for orthodontic bonding. Adding a layer of primer appears to slightly increase the SBS while causing less adhesive to remain on enamel from which brackets were debonded.

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Shapinko, Y. , Eleftheriadi, I. , Brosh, T. , Adler-Abramovich, L. , Davidovitch, M. , Sella-Tunis, T. , Sarig, R. and Shpack, N. (2018) Evaluation of an Orthodontic Adhesive with Combined Primer and Composite. Open Journal of Stomatology, 8, 205-216. doi: 10.4236/ojst.2018.86020.

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