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Surface Treatment of Implant Materials
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Surface Treatment of Implant Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Biomaterials".

Deadline for manuscript submissions: closed (31 March 2022) | Viewed by 7697

Special Issue Editors

Dr. Ikiru Atsuta

E-Mail Website
Guest Editor
Division of Advanced Dental Devices and Therapeutics, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 8128582, Japan
Interests: CaCl2 hydrothermal treatment; bone substitute; soft-tissue sealing; stem cell therapy; medication-related osteonecrosis of the jaw
Dr. Yasuko Moriyama

E-Mail Website
Guest Editor
Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
Interests: bone substitute; soft-tissue sealing; dental implants; osteogenesis; titanium

Special Issue Information

Dear Colleagues,

From the range of dental implant materials which have been developed, titanium and its alloy are currently the most widely used. The implant surface is one of the most important determinants of the condition of the surrounding tissue. The surface treatment of implants is based on the concept of “osseointegration”, and it has recently undergone dramatic improvement. However, as well as bone contact, the seal between the dental implant and the surrounding gingival tissue also contributes to the success of an oral implant. This is because a tight seal between the epithelium and surface is required to protect the underlying tissues from undesirable stimuli, such as bacterial invasion.

In this special issue, by investigating the processes of both bone formation and soft tissue healing around the materials with various surface treatments, we consider the potential improvements that could be made to ensure successful implant treatment.

It is my pleasure to invite you to submit a manuscript for this Special Issue. Full papers, communications, and reviews are all welcome.

Dr. Ikiru Atsuta
Dr. Yasuko Moriyama
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • dental implant
  • surface treatment
  • osseointegration
  • soft tissue sealing
  • implant material

Published Papers (3 papers)

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Research

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11 pages, 3037 KiB  
Article
Replacement Process of Carbonate Apatite by Alveolar Bone in a Rat Extraction Socket
by Xiaoxu Zhang, Ikiru Atsuta, Ikue Narimatsu, Nobuyuki Ueda, Ryosuke Takahashi, Yuki Egashira, Jing-Qi Zhang, Jiong-Yan Gu, Kiyoshi Koyano and Yasunori Ayukawa
Materials 2021, 14(16), 4457; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14164457 - 09 Aug 2021
Cited by 7 | Viewed by 2251
Abstract
The objective of this study was to investigate a bone graft substitute containing carbonate apatite (CO3Ap) to analyze bone replacement and the state of bone formation in vitro and in vivo compared with autogenous bone (AB) or control. An osteoclast precursor [...] Read more.
The objective of this study was to investigate a bone graft substitute containing carbonate apatite (CO3Ap) to analyze bone replacement and the state of bone formation in vitro and in vivo compared with autogenous bone (AB) or control. An osteoclast precursor cell line was cultured with AB or CO3Ap, and morphological analysis using scanning electron microscopy and a tartrate-resistant acid phosphatase activity assay were performed. The right maxillary first and second molars of Wistar rats were extracted and compensated by AB or CO3Ap granules. Following implantation, the bone formation state was evaluated after 3, 5, 7, 14, and 28 days of surgery by micro-computed tomography and immunohistostaining. The osteoclast-like cell morphology was typical with many cell protrusions in the AB and CO3Ap groups. Additionally, the number of osteoclast-like cells formed in the culture increased in each group; however, there was no significant difference between the AB and CO3Ap groups. Five days after tooth extraction, osteoclasts were observed near CO3Ap. The bone thickness in the CO3Ap group was significantly increased than that in the control group and the bone formation in the CO3Ap group increased by the same level as that in the AB group. CO3Ap is gradually absorbed by osteoclasts in the extraction socket and is easily replaced by alveolar bone. The process of bone replacement by osteoclasts is similar to that of autologous bone. By observing the process of bone replacement in more detail, it may be possible to gain a better understanding of the bone formation and control the amount of bone after surgery. Full article
(This article belongs to the Special Issue Surface Treatment of Implant Materials)
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11 pages, 3899 KiB  
Article
Assessment of the Soft-Tissue Seal at the Interface between the Base of the Fixed Denture Pontic and the Oral Mucosa
by Ikiru Atsuta, Ikue Narimatsu, Taichiro Morimoto, Chi-Hsiang Cheng, Kiyoshi Koyano and Yasunori Ayukawa
Materials 2021, 14(14), 3997; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14143997 - 16 Jul 2021
Cited by 1 | Viewed by 2281
Abstract
Fixed dentures (bridges) are often selected as a treatment option for a defective prosthesis. In this study, we assess the contact condition between the base of the pontic and oral mucosa, and examine the effect of prosthetic preparation and material biocompatibility. The molars [...] Read more.
Fixed dentures (bridges) are often selected as a treatment option for a defective prosthesis. In this study, we assess the contact condition between the base of the pontic and oral mucosa, and examine the effect of prosthetic preparation and material biocompatibility. The molars were removed and replaced with experimental implants with a free-end type bridge superstructure after one week. In Experiment 1, we assessed different types of prosthetic pre-treatment: (1) the untreated control group (Con: mucosa recovering from the tooth extraction); (2) the laser irradiation group (Las: mucosa recovering after the damage caused by a CO2 laser); and (3) the tooth extraction group (Ext: mucosa recovering immediately after the teeth extraction). In Experiment 2, five materials (titanium, zirconia, porcelain, gold-platinum alloy, and self-curing resin) were placed at the base of the bridge pontic. Four weeks after the placement of the bridge, the mucosa adjacent to the pontic base was histologically analyzed. In Experiment 1, the Con and Las groups exhibited no formation of an epithelial sealing structure on the pontic base. In the Ext group, adherent epithelium was observed. In Experiment 2, the sealing properties at the pontic interface were superior for titanium and the zirconia compared with those made of porcelain or gold-platinum alloy. In the resin group, a clear delay in epithelial healing was observed. Full article
(This article belongs to the Special Issue Surface Treatment of Implant Materials)
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Review

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13 pages, 1652 KiB  
Review
Systematic Review and Meta-Analysis of the Effectiveness of Calcium-Phosphate Coating on the Osseointegration of Titanium Implants
by Nansi López-Valverde, Antonio López-Valverde, Juan Manuel Aragoneses, Bruno Macedo de Sousa, María João Rodrigues and Juan Manuel Ramírez
Materials 2021, 14(11), 3015; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14113015 - 02 Jun 2021
Cited by 8 | Viewed by 2628
Abstract
Ca-P coatings on Ti implants have demonstrated good osseointegration capability due to their similarity to bone mineral matter. Three databases (PubMed, Embase, and Web of Science) were searched electronically in February 2021 for preclinical studies in unmodified experimental animals, with at least four [...] Read more.
Ca-P coatings on Ti implants have demonstrated good osseointegration capability due to their similarity to bone mineral matter. Three databases (PubMed, Embase, and Web of Science) were searched electronically in February 2021 for preclinical studies in unmodified experimental animals, with at least four weeks of follow-up, measuring bone-to-implant contact (BIC). Although 107 studies were found in the initial search, only eight experimental preclinical studies were included. Adverse events were selected by two independent investigators. The risk of bias assessment of the selected studies was evaluated using the Cochrane Collaboration Tool. Finally, a meta-analysis of the results found no statistical significance between implants coated with Ca-P and implants with etched conventional surfaces (difference of means, random effects: 5.40; 99% CI: −5.85, 16.65). With the limitations of the present review, Ca-P-coated Ti surfaces have similar osseointegration performance to conventional etched surfaces. Future well-designed studies with large samples are required to confirm our findings. Full article
(This article belongs to the Special Issue Surface Treatment of Implant Materials)
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