Surrounding Tissue Response to Surface-Treated Zirconia Implants

Overview

Journal Materials (Basel)

Publisher MDPI

Date 2019 Dec 22

PMID 31861679

Citations 7

Authors

Yohei Iinuma

Masatsugu Hirota

Tohru Hayakawa

Chikahiro Ohkubo

Affiliations

Soon will be listed here.

Abstract

Yttria-stabilized tetragonal zirconia polycrystals (Y-TZP), which are partially stabilized zirconia, have been used for fabricating dental implants. This study investigated the soft tissue attachment, the collagen fiber orientation to zirconia at different surface conditions, and the bone response using implantation experiments in animals. The zirconia implant surfaces were treated with ultraviolet irradiation (UV), a combination of large-grit sandblasting and hydrofluoric acid etching (blastedHF), and a combination of blastedHF and UV (blastedHF+UV). The surface treated with blastedHF and blastedHF+UV appeared rough and hydrophilic. The surface treated with blastedHF+UV appeared to be superhydrophilic. Subsequently, tapered cylindrical zirconia implants were placed in the alveolar sockets of the maxillary molars of rats. The bone-to-implant contact ratio of blastedHF and blastedHF+UV implants was significantly higher than that of the non-treated controls and UV-treated implants. The four different surface-treated zirconia implants demonstrated tight soft tissue attachments. Perpendicularly oriented collagen fibers towards zirconia implants were more prominent in blastedHF and blastedHF+UV implants compared to the controls and UV-treated implants. The area of the soft tissue attachment was the greatest with the perpendicularly oriented collagen fibers of blastedHF+UV-treated implants. In conclusion, blastedHF+UV treatment could be beneficial for ensuring greater soft-tissue attachment for zirconia implants.

Citing Articles

Surface modification strategies to reinforce the soft tissue seal at transmucosal region of dental implants.

Jin S, Yu Y, Zhang T, Xie D, Zheng Y, Wang C Bioact Mater. 2024; 42:404-432.

PMID: 39308548 PMC: 11415887. DOI: 10.1016/j.bioactmat.2024.08.042.

Enhancement of Biocompatibility of High-Transparency Zirconia Abutments with Human Gingival Fibroblasts via Cold Atmospheric Plasma Treatment: An In Vitro Study.

Zheng M, Ma X, Tan J, Zhao H, Yang Y, Ye X J Funct Biomater. 2024; 15(7).

PMID: 39057321 PMC: 11277629. DOI: 10.3390/jfb15070200.

The integration of peri-implant soft tissues around zirconia abutments: Challenges and strategies.

Tang K, Luo M, Zhou W, Niu L, Chen J, Wang F Bioact Mater. 2023; 27:348-361.

PMID: 37180640 PMC: 10172871. DOI: 10.1016/j.bioactmat.2023.04.009.

Influence of the Surface Chemical Composition Differences between Zirconia and Titanium with the Similar Surface Structure and Roughness on Bone Formation.

Tokunaga Y, Hirota M, Hayakawa T Nanomaterials (Basel). 2022; 12(14).

PMID: 35889704 PMC: 9324478. DOI: 10.3390/nano12142478.

Oral Tissue Interactions and Cellular Response to Zirconia Implant-Prosthetic Components: A Critical Review.

Kunrath M, Gupta S, Lorusso F, Scarano A, Noumbissi S Materials (Basel). 2021; 14(11).

PMID: 34070589 PMC: 8198172. DOI: 10.3390/ma14112825.

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