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Santos JSD, Mulinari-Santos G, DE Souza Batista FR, Gomes-Ferreira PHS, Palin LP, Antoniali C, Okamoto R. Analysis of peri-implant bone tissue between hydrophilic and rough implant surfaces in spontaneously hypertensive rats treated with losartan. J Appl Oral Sci 2024; 32:e20230374. [PMID: 38922240 PMCID: PMC11182640 DOI: 10.1590/1678-7757-2023-0374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 06/27/2024] Open
Abstract
OBJECTIVES to evaluate the morphological and functional characteristics of the peri-implant bone tissue that was formed during the healing process by the placement implants using two different surface treatments: hydrophilic Acqua™ (ACQ) and rough NeoPoros™ (NEO), in spontaneously hypertensive (SHR) and normotensive rats (Wistar) whether or not treated with losartan. METHODOLOGY In total, 96 male rats (48 Wistar and 48 SHR) were divided into eight subgroups: absolute control rough (COA NEO), absolute control hydrophilic (COA ACQ), losartan control rough (COL NEO), losartan control hydrophilic (COL ACQ), SHR absolute rough (SHR NEO), SHR absolute hydrophilic (SHR ACQ), SHR losartan rough (SHRL NEO), and SHR losartan hydrophilic (SHRL ACQ). The rats medicated with losartan received daily doses of the medication. NeoPoros™ and Acqua™ implants were installed in the tibiae of the rats. After 14 and 42 days of the surgery, the fluorochromes calcein and alizarin were injected in the rats. The animals were euthanized 67 days after treatment. The collected samples were analyzed by immunohistochemistry, biomechanics, microcomputerized tomography, and laser confocal scanning microscopy analysis. RESULTS The osteocalcin (OC) and vascular endothelium growth factor (VEGF) proteins had moderate expression in the SHRL ACQ subgroup. The same subgroup also had the highest implant removal torque. Regarding microarchitectural characteristics, a greater number of trabeculae was noted in the control animals that were treated with losartan. In the bone mineralization activity, it was observed that the Acqua™ surface triggered higher values of MAR (mineral apposition rate) in the COA, COL, and SHRL groups (p<0.05). CONCLUSION the two implant surface types showed similar responses regarding the characteristics of the peri-implant bone tissue, even though the ACQ surface seems to improve the early stages of osseointegration.
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Affiliation(s)
- Jaqueline Silva Dos Santos
- Universidade Estadual Paulista "Júlio de Mesquita Filho", Faculdade de Odontologia de Araçatuba, Departamento de Ciências Básicas, Araçatuba, Brasil
| | - Gabriel Mulinari-Santos
- Universidade Estadual Paulista "Júlio de Mesquita Filho", Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, Araçatuba, Brasil
| | - Fábio Roberto DE Souza Batista
- Universidade Estadual Paulista "Júlio de Mesquita Filho", Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, Araçatuba, Brasil
| | - Pedro Henrique Silva Gomes-Ferreira
- Universidade Estadual Paulista "Júlio de Mesquita Filho", Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, Araçatuba, Brasil
| | - Letícia Pitol Palin
- Universidade Estadual Paulista "Júlio de Mesquita Filho", Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, Araçatuba, Brasil
| | - Cristina Antoniali
- Universidade Estadual Paulista "Júlio de Mesquita Filho", Faculdade de Odontologia de Araçatuba, Departamento de Ciências Básicas, Araçatuba, Brasil
| | - Roberta Okamoto
- Universidade Estadual Paulista "Júlio de Mesquita Filho", Faculdade de Odontologia de Araçatuba, Departamento de Ciências Básicas, Araçatuba, Brasil
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Costa RC, Takeda TTS, Dini C, Bertolini M, Ferreira RC, Pereira G, Sacramento CM, Ruiz KGS, Feres M, Shibli JA, Barāo VAR, Souza JGS. Efficacy of a novel three-step decontamination protocol for titanium-based dental implants: An in vitro and in vivo study. Clin Oral Implants Res 2024; 35:268-281. [PMID: 38131526 DOI: 10.1111/clr.14224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 11/05/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023]
Abstract
AIM The aim of the study was to evaluate several mechanical and chemical decontamination methods associated with a newly introduced biofilm matrix disruption strategy for biofilm cleaning and preservation of implant surface features. MATERIALS AND METHODS Titanium (Ti) discs were obtained by additive manufacturing. Polymicrobial biofilm-covered Ti disc surfaces were decontaminated with mechanical [Ti curette, Teflon curette, Ti brush, water-air jet device, and Er:YAG laser] or chemical [iodopovidone (PVPI) 0.2% to disrupt the extracellular matrix, along with amoxicillin; minocycline; tetracycline; H2 O2 3%; chlorhexidine 0.2%; NaOCl 0.95%; hydrocarbon-oxo-borate-based antiseptic] protocols. The optimal in vitro mechanical/chemical protocol was then tested in combination using an in vivo biofilm model with intra-oral devices. RESULTS Er:YAG laser treatment displayed optimum surface cleaning by biofilm removal with minimal deleterious damage to the surface, smaller Ti release, good corrosion stability, and improved fibroblast readhesion. NaOCl 0.95% was the most promising agent to reduce in vitro and in vivo biofilms and was even more effective when associated with PVPI 0.2% as a pre-treatment to disrupt the biofilm matrix. The combination of Er:YAG laser followed by PVPI 0.2% plus NaOCl 0.95% promoted efficient decontamination of rough Ti surfaces by disrupting the biofilm matrix and killing remnants of in vivo biofilms formed in the mouth (the only protocol to lead to ~99% biofilm eradication). CONCLUSION Er:YAG laser + PVPI 0.2% + NaOCl 0.95% can be a reliable decontamination protocol for Ti surfaces, eliminating microbial biofilms without damaging the implant surface.
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Affiliation(s)
- Raphael Cavalcante Costa
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Thais Terumi Sadamitsu Takeda
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Caroline Dini
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Martinna Bertolini
- Department of Periodontics and Preventive Dentistry, School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Raquel Carla Ferreira
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - Gabriele Pereira
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - Catharina Marques Sacramento
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Karina Gonzales S Ruiz
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Magda Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Jamil A Shibli
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - Valentim A R Barāo
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Joāo Gabriel S Souza
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
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Su S, Chen W, Zheng M, Lu G, Tang W, Huang H, Qu D. Facile Fabrication of 3D-Printed Porous Ti6Al4V Scaffolds with a Sr-CaP Coating for Bone Regeneration. ACS OMEGA 2022; 7:8391-8402. [PMID: 35309469 PMCID: PMC8928158 DOI: 10.1021/acsomega.1c05908] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 02/10/2022] [Indexed: 05/12/2023]
Abstract
To improve osseointegration caused by the stress-shielding effect and the inert nature of titanium-based alloys, in this work, we successfully constructed a strontium calcium phosphate (Sr-CaP) coating on three-dimensional (3D)-printed Ti6Al4V scaffolds to address this issue. The energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) results indicated that the coatings with and without Sr doping mainly consisted of CaHPO4. The bonding strength of Sr doping coating met the required ISO 13 779-4-2018 standard (≥15 MPa). The in vitro results suggested that the Sr-CaP-modified Ti6Al4V scaffolds were found to effectively promote mice bone-marrow stem cell (mBMSC) adhesion, spreading, and osteogenesis. The in vivo experiments also showed that the Sr-CaP-modified Ti6Al4V scaffolds could significantly improve bone regeneration and osseointegration. More importantly, Sr-doped CaP-coated Ti6Al4V scaffolds were found to accelerate bone healing in comparison to CaP-coated Ti6Al4V scaffolds. The Sr-CaP-modified Ti6Al4V scaffolds are considered a promising strategy to develop bioactive surfaces for enhancing the osseointegration between the implant and bone tissue.
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Affiliation(s)
- Shenghui Su
- Division
of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
| | - Weidong Chen
- Division
of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
| | - Minghui Zheng
- Division
of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
- Department
of Orthopaedic Surgery, Zengcheng Branch of Nanfang Hospital, Southern Medical University, 511338 Guangzhou, China
| | - Guozan Lu
- Guangzhou
Huatai 3D Material Manufacture Ltd., Co., 511300 Guangzhou, China
| | - Wei Tang
- Department
of Anatomy, College of Basic Medicine, Dalian
Medical University, Dalian 116044, China
| | - Haihong Huang
- Division
of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
| | - Dongbin Qu
- Division
of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
- Department
of Orthopaedic Surgery, Zengcheng Branch of Nanfang Hospital, Southern Medical University, 511338 Guangzhou, China
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