Crystalline Biomimetic Calcium Phosphate Coating on Mini-Pin Implants to Accelerate Osseointegration and Extend Drug Release Duration for an Orthodontic Application

Miniscrew implants (MSIs) have been widely used as temporary anchorage devices in orthodontic clinics. However, one of their major limitations is the relatively high failure rate. We hypothesize that a biomimetic calcium phosphate (BioCaP) coating layer on mini-pin implants might be able to accelera...

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Main Authors: Menghong Li, Gang Wu, Mingjie Wang, Ernst B. Hunziker, Yuelian Liu
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/12/14/2439
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author Menghong Li
Gang Wu
Mingjie Wang
Ernst B. Hunziker
Yuelian Liu
author_facet Menghong Li
Gang Wu
Mingjie Wang
Ernst B. Hunziker
Yuelian Liu
author_sort Menghong Li
collection DOAJ
description Miniscrew implants (MSIs) have been widely used as temporary anchorage devices in orthodontic clinics. However, one of their major limitations is the relatively high failure rate. We hypothesize that a biomimetic calcium phosphate (BioCaP) coating layer on mini-pin implants might be able to accelerate the osseointegration, and can be a carrier for biological agents. A novel mini-pin implant to mimic the MSIs was used. BioCaP (amorphous or crystalline) coatings with or without the presence of bovine serum albumin (BSA) were applied on such implants and inserted in the metaphyseal tibia in rats. The percentage of bone to implant contact (BIC) in histomorphometric analysis was used to evaluate the osteoconductivity of such implants from six different groups (n=6 rats per group): (1) no coating no BSA group, (2) no coating BSA adsorption group, (3) amorphous BioCaP coating group, (4) amorphous BioCaP coating-incorporated BSA group, (5) crystalline BioCaP coating group, and (6) crystalline BioCaP coating-incorporated BSA group. Samples were retrieved 3 days, 1 week, 2 weeks, and 4 weeks post-surgery. The results showed that the crystalline BioCaP coating served as a drug carrier with a sustained release profile. Furthermore, the significant increase in BIC occurred at week 1 in the crystalline coating group, but at week 2 or week 4 in other groups. These findings indicate that the crystalline BioCaP coating can be a promising surface modification to facilitate early osseointegration and increase the success rate of miniscrew implants in orthodontic clinics.
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spelling doaj.art-6abf82cf14424ffd85f030f0222d430a2023-12-01T22:31:17ZengMDPI AGNanomaterials2079-49912022-07-011214243910.3390/nano12142439Crystalline Biomimetic Calcium Phosphate Coating on Mini-Pin Implants to Accelerate Osseointegration and Extend Drug Release Duration for an Orthodontic ApplicationMenghong Li0Gang Wu1Mingjie Wang2Ernst B. Hunziker3Yuelian Liu4Department of Oral Cell Biology, Academic Centre of Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, 1081 LA Amsterdam, The NetherlandsDepartment of Oral Cell Biology, Academic Centre of Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, 1081 LA Amsterdam, The NetherlandsDepartment of Oral Cell Biology, Academic Centre of Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, 1081 LA Amsterdam, The NetherlandsCentre of Regenerative Medicine for Skeletal Tissues, Department of Clinical Research, University of Bern, 3010 Bern, SwitzerlandDepartment of Oral Cell Biology, Academic Centre of Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, 1081 LA Amsterdam, The NetherlandsMiniscrew implants (MSIs) have been widely used as temporary anchorage devices in orthodontic clinics. However, one of their major limitations is the relatively high failure rate. We hypothesize that a biomimetic calcium phosphate (BioCaP) coating layer on mini-pin implants might be able to accelerate the osseointegration, and can be a carrier for biological agents. A novel mini-pin implant to mimic the MSIs was used. BioCaP (amorphous or crystalline) coatings with or without the presence of bovine serum albumin (BSA) were applied on such implants and inserted in the metaphyseal tibia in rats. The percentage of bone to implant contact (BIC) in histomorphometric analysis was used to evaluate the osteoconductivity of such implants from six different groups (n=6 rats per group): (1) no coating no BSA group, (2) no coating BSA adsorption group, (3) amorphous BioCaP coating group, (4) amorphous BioCaP coating-incorporated BSA group, (5) crystalline BioCaP coating group, and (6) crystalline BioCaP coating-incorporated BSA group. Samples were retrieved 3 days, 1 week, 2 weeks, and 4 weeks post-surgery. The results showed that the crystalline BioCaP coating served as a drug carrier with a sustained release profile. Furthermore, the significant increase in BIC occurred at week 1 in the crystalline coating group, but at week 2 or week 4 in other groups. These findings indicate that the crystalline BioCaP coating can be a promising surface modification to facilitate early osseointegration and increase the success rate of miniscrew implants in orthodontic clinics.https://www.mdpi.com/2079-4991/12/14/2439biomimetic materialcalcium phosphatebovine serum albuminosteointegrationbone implant contact
spellingShingle Menghong Li
Gang Wu
Mingjie Wang
Ernst B. Hunziker
Yuelian Liu
Crystalline Biomimetic Calcium Phosphate Coating on Mini-Pin Implants to Accelerate Osseointegration and Extend Drug Release Duration for an Orthodontic Application
Nanomaterials
biomimetic material
calcium phosphate
bovine serum albumin
osteointegration
bone implant contact
title Crystalline Biomimetic Calcium Phosphate Coating on Mini-Pin Implants to Accelerate Osseointegration and Extend Drug Release Duration for an Orthodontic Application
title_full Crystalline Biomimetic Calcium Phosphate Coating on Mini-Pin Implants to Accelerate Osseointegration and Extend Drug Release Duration for an Orthodontic Application
title_fullStr Crystalline Biomimetic Calcium Phosphate Coating on Mini-Pin Implants to Accelerate Osseointegration and Extend Drug Release Duration for an Orthodontic Application
title_full_unstemmed Crystalline Biomimetic Calcium Phosphate Coating on Mini-Pin Implants to Accelerate Osseointegration and Extend Drug Release Duration for an Orthodontic Application
title_short Crystalline Biomimetic Calcium Phosphate Coating on Mini-Pin Implants to Accelerate Osseointegration and Extend Drug Release Duration for an Orthodontic Application
title_sort crystalline biomimetic calcium phosphate coating on mini pin implants to accelerate osseointegration and extend drug release duration for an orthodontic application
topic biomimetic material
calcium phosphate
bovine serum albumin
osteointegration
bone implant contact
url https://www.mdpi.com/2079-4991/12/14/2439
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AT gangwu crystallinebiomimeticcalciumphosphatecoatingonminipinimplantstoaccelerateosseointegrationandextenddrugreleasedurationforanorthodonticapplication
AT mingjiewang crystallinebiomimeticcalciumphosphatecoatingonminipinimplantstoaccelerateosseointegrationandextenddrugreleasedurationforanorthodonticapplication
AT ernstbhunziker crystallinebiomimeticcalciumphosphatecoatingonminipinimplantstoaccelerateosseointegrationandextenddrugreleasedurationforanorthodonticapplication
AT yuelianliu crystallinebiomimeticcalciumphosphatecoatingonminipinimplantstoaccelerateosseointegrationandextenddrugreleasedurationforanorthodonticapplication