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Ashique S, Hussain A, Khan T, Pal S, Rihan M, Farid A, Webster TJ, Hassan MZ, Asiri YI. Insights into Intra Periodontal Pocket Pathogenesis, Treatment, In Vitro-In Vivo Models, Products and Patents, Challenges and Opportunity. AAPS PharmSciTech 2024; 25:121. [PMID: 38816555 DOI: 10.1208/s12249-024-02842-6] [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: 01/27/2024] [Accepted: 05/15/2024] [Indexed: 06/01/2024] Open
Abstract
Periodontal disease is a multifactorial pathogenic condition involving microbial infection, inflammation, and various systemic complications. Here, a systematic and comprehensive review discussing key-points such as the pros and cons of conventional methods, new advancements, challenges, patents and products, and future prospects is presented. A systematic review process was adopted here by using the following keywords: periodontal diseases, pathogenesis, models, patents, challenges, recent developments, and 3-D printing scaffolds. Search engines used were "google scholar", "web of science", "scopus", and "pubmed", along with textbooks published over the last few decades. A thorough study of the published data rendered an accurate and deep understanding of periodontal diseases, the gap of research so far, and future opportunities. Formulation scientists and doctors need to be interconnected for a better understanding of the disease to prescribe a quality product. Moreover, prime challenges (such as a lack of a vital testing model, scarcity of clinical and preclinical data, products allowing for high drug access to deeper tissue regions for prolonged residence, lack of an international monitoring body, lack of 4D or time controlled scaffolds, and lack of successful AI based tools) exist that must be addressed for designing new quality products. Generally, several products have been commercialized to treat periodontal diseases with certain limitations. Various strategic approaches have been attempted to target certain delivery regions, maximize residence time, improve efficacy, and reduce toxicity. Conclusively, the current review summarizes valuable information for researchers and healthcare professional to treat a wide range of periodontal diseases.
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Affiliation(s)
- Sumel Ashique
- Department of Pharmaceutics, School of Pharmacy, Bharat Institute of Technology (BIT), Meerut, 250103, UP, India
| | - Afzal Hussain
- Department of Pharmaceutics, College of Pharmacy, King Saud University, 11451, Riyadh, Saudi Arabia.
| | - Tasneem Khan
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Sejuti Pal
- School of Pharmacy, College of Health and Medicine, University of Tasmania, Churchill Ave, Sandybay, Hobart, TAS- 7005, Australia
| | - Mohd Rihan
- Department of Pharmacology, National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab, 160062, India
| | - Arshad Farid
- Gomal Center of Biochemistry and Biotechnology, Gomal University, Dera Ismail Khan, 29050, Pakistan
| | - Thomas J Webster
- Division of Pre-college and Undergraduate Studies, Brown University, Providence, Rhode Island, 02912, USA.
| | - Mohd Zaheen Hassan
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Asir, Saudi Arabia
| | - Yahya I Asiri
- Department of Pharmacology, College of Pharmacy, King Khalid University, Asiri, Saudi Arabia
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Abdo VL, Suarez LJ, de Paula LG, Costa RC, Shibli J, Feres M, Barāo VAR, Bertolini M, Souza JGS. Underestimated microbial infection of resorbable membranes on guided regeneration. Colloids Surf B Biointerfaces 2023; 226:113318. [PMID: 37075523 DOI: 10.1016/j.colsurfb.2023.113318] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/29/2023] [Accepted: 04/12/2023] [Indexed: 04/21/2023]
Abstract
Barrier membranes are critical in creating tissuecompartmentalization for guided tissue (GTR) and bone regeneration (GBR) therapies. More recently, resorbable membranes have been widely used for tissue and bone regeneration due to their improved properties and the dispensable re-entry surgery for membrane removal. However, in cases with membrane exposure, this may lead to microbial contamination that will compromise the integrity of the membrane, surrounding tissue, and bone regeneration, resulting in treatment failure. Although the microbial infection can negatively influence the clinical outcomes of regenerative therapy, such as GBR and GTR, there is a lack of clinical investigations in this field, especially concerning the microbial colonization of different types of membranes. Importantly, a deeper understanding of the mechanisms of biofilm growth and composition and pathogenesis on exposed membranes is still missing, explaining the mechanisms by which bone regeneration is reduced during membrane exposure. This scoping review comprehensively screened and discussed the current in vivo evidence and possible new perspectives on the microbial contamination of resorbable membranes. Results from eligible in vivo studies suggested that different bacterial species colonized exposed membranes according to their composition (collagen, expanded polytetrafluoroethylene (non-resorbable), and polylactic acid), but in all cases, it negatively affected the attachment level and amount of bone gain. However, limited models and techniques have evaluated the newly developed materials, and evidence is scarce. Finally, new approaches to enhance the antimicrobial effect should consider changing the membrane surface or incorporating long-term released antimicrobials in an effort to achieve better clinical success.
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Affiliation(s)
- Victoria L Abdo
- Department of Periodontology, Dental Research Division, Guarulhos University, Praça Tereza Cristina, 88 - Centro, Guarulhos, São Paulo 07023-070, Brazil
| | - Lina J Suarez
- Department of Periodontology, Dental Research Division, Guarulhos University, Praça Tereza Cristina, 88 - Centro, Guarulhos, São Paulo 07023-070, Brazil; Departamento de Ciencias Básicas y Medicina Oral, Universidad Nacional de Colombia, Cra 45 # 26-85, Bogotá 11001, Colombia
| | - Lucca Gomes de Paula
- Dental Science School (Faculdade de Ciências Odontológicas - FCO), Av. Waldomiro Marcondes Oliveira, 20 - Ibituruna, Montes Claros, Minas Gerais 39401-303, Brazil
| | - Raphael C Costa
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil
| | - Jamil Shibli
- Department of Periodontology, Dental Research Division, Guarulhos University, Praça Tereza Cristina, 88 - Centro, Guarulhos, São Paulo 07023-070, Brazil
| | - Magda Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Praça Tereza Cristina, 88 - Centro, Guarulhos, São Paulo 07023-070, Brazil; Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Valentim A R Barāo
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil
| | - Martinna Bertolini
- Department of Periodontics and Preventive Dentistry, University of Pittsburgh School of Dental Medicine, 3501 Terrace St, Pittsburgh, PA 15213, USA
| | - Joāo Gabriel Silva Souza
- Department of Periodontology, Dental Research Division, Guarulhos University, Praça Tereza Cristina, 88 - Centro, Guarulhos, São Paulo 07023-070, Brazil; Dental Science School (Faculdade de Ciências Odontológicas - FCO), Av. Waldomiro Marcondes Oliveira, 20 - Ibituruna, Montes Claros, Minas Gerais 39401-303, Brazil.
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Elsilk SE, Khalil MA, Aboshady TA, Alsalmi FA, Ali SS. Streptomyces rochei MS-37 as a Novel Marine Actinobacterium for Green Biosynthesis of Silver Nanoparticles and Their Biomedical Applications. Molecules 2022; 27:7296. [PMID: 36364123 PMCID: PMC9654146 DOI: 10.3390/molecules27217296] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 09/25/2022] [Indexed: 02/13/2024] Open
Abstract
Periodontitis, as one of the most common diseases on a global scale, is a public health concern. Microbial resistance to currently available antimicrobial agents is becoming a growing issue in periodontal treatment. As a result, it is critical to develop effective and environmentally friendly biomedical approaches to overcome such challenges. The investigation of Streptomyces rochei MS-37's performance may be the first of its kind as a novel marine actinobacterium for the green biosynthesis of silver nanoparticles (SNPs) and potentials as antibacterial, anti-inflammatory, antibiofilm, and antioxidant candidates suppressing membrane-associated dental infections. Streptomyces rochei MS-37, a new marine actinobacterial strain, was used in this study for the biosynthesis of silver nanoparticles for various biomedical applications. Surface plasmon resonance spectroscopy showed a peak at 429 nm for the SNPs. The SNPs were spherical, tiny (average 23.2 nm by TEM, 59.4 nm by DLS), very stable (-26 mV), and contained capping agents. The minimum inhibitory concentrations of the SNPs that showed potential antibacterial action ranged from 8 to 128 µg/mL. Periodontal pathogens were used to perform qualitative evaluations of microbial adhesion and bacterial penetration through guided tissue regeneration membranes. The findings suggested that the presence of the SNPs could aid in the suppression of membrane-associated infection. Furthermore, when the anti-inflammatory action of the SNPs was tested using nitric oxide radical scavenging capacity and protein denaturation inhibition, it was discovered that the SNPs were extremely efficient at scavenging nitric oxide free radicals and had a strong anti-denaturation impact. The SNPs were found to be more cytotoxic to CAL27 than to human peripheral blood mononuclear cells (PBMCs), with IC50 values of 81.16 µg/mL in PBMCs and 34.03 µg/mL in CAL27. This study's findings open a new avenue for using marine actinobacteria for silver nanoparticle biosynthesis, which holds great promise for a variety of biomedical applications, in particular periodontal treatment.
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Affiliation(s)
- Sobhy E. Elsilk
- Botany and Microbiology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Maha A. Khalil
- Biology Department, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Tamer A. Aboshady
- Oral and Maxillofacial Surgery and Diagnostic Sciences, Faculty of Dentistry, Taif University, Taif 21944, Saudi Arabia
| | - Fatin A. Alsalmi
- Biology Department, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Sameh S. Ali
- Botany and Microbiology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
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4
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Perez JA, Weber KL, Bender SJ, Wulster KB, Parente EJ. Percutaneous doxycycline sclerotherapy in a horse with a mandibular aneurysmal bone cyst. Vet Surg 2022; 51:1265-1272. [PMID: 35730789 DOI: 10.1111/vsu.13844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 04/24/2022] [Accepted: 05/29/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To describe the use and outcome of sclerotherapy with intralesional doxycycline foam in a horse with a mandibular aneurysmal bone cyst. STUDY DESIGN Case report. ANIMALS Client-owned 1 year old Standardbred filly. METHODS The horse presented for progressive mandibular swelling. A 10 mg/mL doxycycline foam was prepared for intralesional injection. Three doses were injected into the lesion under computed tomographic guidance at 6 and 15 weeks after initial treatment. Volume reduction was monitored after each treatment with 3D volumetric rendering and region of interest segmentation using commercially available software. RESULTS The volume of the lesion decreased from 458.7455 cm3 before treatment, to 363.3101 cm3 at 6 weeks, 273.5855 cm3 at 15 weeks, and 247.2316 cm3 6 months later, resulting in a total reduction of 54% of the initial volume. Bone formation was noted in the lesion. No adverse effects related to doxycycline foam injections were noted. The mandibular swelling was resolved after treatment. CONCLUSION Intralesional doxycycline sclerotherapy was shown to be efficacious in reducing the volume of the aneurysmal bone cyst in the horse presented in this report. There was complete resolution of mandibular swelling with no side effects related to the intralesional injections.
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Affiliation(s)
- Jairo A Perez
- Department of Clinical Sciences, New Bolton Center, University of Pennsylvania, Kennett Square, Pennsylvania, USA
| | - Kristy L Weber
- Cancer Center and Division of Orthopedics at Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Susan J Bender
- Department of Clinical Sciences, New Bolton Center, University of Pennsylvania, Kennett Square, Pennsylvania, USA
| | - Kathryn B Wulster
- Department of Clinical Sciences, New Bolton Center, University of Pennsylvania, Kennett Square, Pennsylvania, USA
| | - Eric J Parente
- Department of Clinical Sciences, New Bolton Center, University of Pennsylvania, Kennett Square, Pennsylvania, USA
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Toledano-Osorio M, Vallecillo C, Vallecillo-Rivas M, Manzano-Moreno FJ, Osorio R. Antibiotic-Loaded Polymeric Barrier Membranes for Guided Bone/Tissue Regeneration: A Mini-Review. Polymers (Basel) 2022; 14:polym14040840. [PMID: 35215754 PMCID: PMC8963018 DOI: 10.3390/polym14040840] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/14/2022] [Accepted: 02/17/2022] [Indexed: 02/01/2023] Open
Abstract
Polymeric membranes are frequently used for bone regeneration in oral and periodontal surgery. Polymers provide adequate mechanical properties (i.e., Young’s modulus) to support oral function and also pose some porosity with interconnectivity to permit for cell proliferation and migration. Bacterial contamination of the membrane is an event that may lead to infection at the bone site, hindering the clinical outcomes of the regeneration procedure. Therefore, polymeric membranes have been proposed as carriers for local antibiotic therapy. A literature search was performed for papers, including peer-reviewed publications. Among the different membranes, collagen is the most employed biomaterial. Collagen membranes and expanded polytetrafluoroethylene loaded with tetracyclines, and polycaprolactone with metronidazole are the combinations that have been assayed the most. Antibiotic liberation is produced in two phases. A first burst release is sometimes followed by a sustained liberation lasting from 7 to 28 days. All tested combinations of membranes and antibiotics provoke an antibacterial effect, but most of the time, they were measured against single bacteria cultures and usually non-specific pathogenic bacteria were employed, limiting the clinical relevance of the attained results. The majority of the studies on animal models state a beneficial effect of these antibiotic functionalized membranes, but human clinical assays are scarce and controversial.
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Affiliation(s)
- Manuel Toledano-Osorio
- Faculty of Dentistry, Colegio Máximo de Cartuja s/n, University of Granada, 18071 Granada, Spain; (M.T.-O.); (C.V.); (M.V.-R.); (R.O.)
| | - Cristina Vallecillo
- Faculty of Dentistry, Colegio Máximo de Cartuja s/n, University of Granada, 18071 Granada, Spain; (M.T.-O.); (C.V.); (M.V.-R.); (R.O.)
| | - Marta Vallecillo-Rivas
- Faculty of Dentistry, Colegio Máximo de Cartuja s/n, University of Granada, 18071 Granada, Spain; (M.T.-O.); (C.V.); (M.V.-R.); (R.O.)
| | - Francisco-Javier Manzano-Moreno
- Faculty of Dentistry, Colegio Máximo de Cartuja s/n, University of Granada, 18071 Granada, Spain; (M.T.-O.); (C.V.); (M.V.-R.); (R.O.)
- Biomedical Group (BIO277), Department of Stomatology, Facultad de Odontología, University of Granada, 18071 Granada, Spain
- Instituto Investigación Biosanitaria ibs.GRANADA, University of Granada, C/Doctor Azpitarte 4, Planta, 18012 Granada, Spain
- Correspondence:
| | - Raquel Osorio
- Faculty of Dentistry, Colegio Máximo de Cartuja s/n, University of Granada, 18071 Granada, Spain; (M.T.-O.); (C.V.); (M.V.-R.); (R.O.)
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6
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Bueno J, Sánchez MC, Toledano-Osorio M, Figuero E, Toledano M, Medina-Castillo AL, Osorio R, Herrera D, Sanz M. Antimicrobial effect of nanostructured membranes for guided tissue regeneration: an in vitro study. Dent Mater 2020; 36:1566-1577. [PMID: 33010943 DOI: 10.1016/j.dental.2020.09.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 07/26/2020] [Accepted: 09/10/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE The purpose of this in vitro study was to evaluate the antibacterial effect of a novel non-resorbable, bioactive polymeric nanostructured membrane (NMs), when doped with zinc, calcium and doxycycline. METHODS A validated in vitro subgingival biofilm model with six bacterial species (Streptococcus oralis, Actinomyces naeslundii, Veillonela parvula, Fusobacterium nucleatum, Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans) was used. The experimental NMs, with and without being doped with doxycycline, calcium and zinc, were placed on hydroxyapatite (HA) discs. As positive control membranes, commercially available dense polytetrafluoroethylene (d-PTFE) membranes were used and, as negative controls, the HA discs without any membrane. The experimental, positive and negative control discs were exposed to a mixed bacterial suspension, at 37 °C under anaerobic conditions, during 12, 24, 48 and 72 h. The resulting biofilms were analyzed through scanning electron microscopy (SEM), to study their structure, and by quantitative polymerase chain reaction (qPCR), to assess the bacterial load, expressed as colony forming units (CFU) per mL. Differences between experimental and control groups were evaluated with the general linear model and the Bonferroni adjustment. RESULTS As shown by SEM, all membrane groups, except the NMs with doxycycline, resulted in structured biofilms from 12-72 hours. Similarly, only the membranes loaded with doxycycline demonstrated a significant reduction in bacterial load during biofilm development, when compared with the control groups (p < 0.001). SIGNIFICANCE Doxycycline-doped nanostructured membranes have an impact on biofilm growth dynamics by significant reducing the bacterial load.
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Affiliation(s)
- J Bueno
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group, University Complutense, Madrid, Spain
| | - M C Sánchez
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group, University Complutense, Madrid, Spain
| | - M Toledano-Osorio
- Biomaterials in Dentistry Research Group, University of Granada, Spain
| | - E Figuero
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group, University Complutense, Madrid, Spain
| | - M Toledano
- Biomaterials in Dentistry Research Group, University of Granada, Spain
| | - A L Medina-Castillo
- NanoMyP. Spin-Off Enterprise from University of Granada, Edificio BIC-Granada, Av. Innovación 1. 18016 Armilla, Granada, Spain
| | - R Osorio
- Biomaterials in Dentistry Research Group, University of Granada, Spain.
| | - D Herrera
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group, University Complutense, Madrid, Spain
| | - M Sanz
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group, University Complutense, Madrid, Spain
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Soriano-Souza C, Valiense H, Mavropoulos E, Martinez-Zelaya V, Costa AM, Alves AT, Longuinho M, Resende R, Mourão C, Granjeiro J, Rocha-Leao MH, Rossi A, Calasans-Maia M. Doxycycline containing hydroxyapatite ceramic microspheres as a bone-targeting drug delivery system. J Biomed Mater Res B Appl Biomater 2019; 108:1351-1362. [PMID: 31496111 DOI: 10.1002/jbm.b.34484] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 07/26/2019] [Accepted: 08/17/2019] [Indexed: 01/24/2023]
Abstract
Drug delivery technology is a promising way to enhance the therapeutic efficacy of drugs. The purpose of this study is to evaluate the physical and chemical properties of hydroxyapatite ceramic microspheres loaded with doxycycline (HADOX), their effects on in vitro osteoblast viability, and their antimicrobial activity, and to determine the effects of DOX on the healing of rat sockets after tooth extraction. The internal microsphere porosity was sensitive to the treatment used to adsorb DOX onto microsphere surface; HA microspheres without DOX presented 26% of pores, whereas HADOX0.15 microspheres presented 52.0%. An initial drug release of 49.15 μg/ml was observed in the first 24 hr. The minimal inhibitory concentration (MIC) tested against Enterococcus faecalis demonstrated that bacterial growth was inhibited for up to 7 days. Results of cell viability and cell proliferation did not indicate statistical differences in the metabolic activity of HADOX samples relative to HA without DOX microspheres (p > .05). After 1 week, a discreet inflammation reaction was observed in the control group, and after 6 weeks, newly-formed bone was observed in the HADOX0.15 (p < .05). The HADOX did not interfere in the bone repair and controlled the early inflammatory response. HADOX could be a promising biomaterial to promote bone repair in infected sites.
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Affiliation(s)
- Carlos Soriano-Souza
- Department of Applied Physics, Brazilian Center for Physics Research, Rio de Janeiro, Brazil
| | - Helder Valiense
- Dentistry School, Federal Fluminense University, Rio de Janeiro, Brazil
| | - Elena Mavropoulos
- LABIOMAT, Brazilian Center for Physics Research, Rio de Janeiro, Brazil
| | | | | | - Adriana T Alves
- Department of Oral Pathology, Federal Fluminense University, Rio de Janeiro, Brazil
| | - Mariana Longuinho
- Department of Applied Physics, Brazilian Center for Physics Research, Rio de Janeiro, Brazil
| | - Rodrigo Resende
- Oral Surgery Department, Fluminense Federal University, Rio de Janeiro, Brazil
| | - Carlos Mourão
- Unidade de Pesquisa Clínica, Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - Jose Granjeiro
- Department of Bioengineering, National Institute of Metrology, Standardization and Industrial Quality, Rio de Janeiro, Brazil
| | - Maria H Rocha-Leao
- Chemistry School, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alexandre Rossi
- Department of Applied Physics, Brazilian Center for Physics Research, Rio de Janeiro, Brazil
| | - Mônica Calasans-Maia
- Oral Surgery Department, Dentistry School, Fluminense Federal University, Rio de Janeiro, Brazil
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Alécio ABW, Ferreira CF, Babu J, Shokuhfar T, Jo S, Magini R, Garcia-Godoy F. Doxycycline Release of Dental Implants With Nanotube Surface, Coated With Poly Lactic-Co-Glycolic Acid for Extended pH-controlled Drug Delivery. J ORAL IMPLANTOL 2019; 45:267-273. [PMID: 31008689 DOI: 10.1563/aaid-joi-d-18-00069] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
When dental implants become infected, the progression of the disease is rapid. Commercially available dental implant surfaces can be easily contaminated, resulting in rapid progression of peri-mucositis and peri-implantitis. The aim of this study was to evaluate, in vitro, the pattern of doxycycline release from by dental implants with titanium nanotube surface (DINS) at different pHs to examine novel drug loading and chemical coating techniques. Nine DINS were loaded with doxycycline and subsequently coated with polylactic-co-glycolic acid (PLGA). High-performance liquid chromatography (HPLC) was used to measure the amounts of released doxycycline in a 30-day period. Cytotoxicity of the DINS was evaluated by an assay using 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide (MTT). The results showed that the experimental DINS coated with doxycycline and PLGA showed a mean drug release during the experimental period for the groups: pH 7.4 (8.39 μg/mL), pH 6.4 (8.63 μg/mL). The pH 5.4 (15.18 μl/mL) doxycycline release from DINS was faster at pH 5.4 than those at pHs 6.4 and 7.4 (P = .0031 and .0034, respectively). This new surface treatment of dental implants with titanium nanotubes and subsequent drug loading demonstrated biocompatibility and sustained doxycycline release over a 30-day period. Additional studies are needed in order to adopt a stable drug release at neutral pH environment while warranting a constant drug release in an acidic pH environment.
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Affiliation(s)
| | - Cimara Fortes Ferreira
- Department of Prosthodontics, University of Tennessee Health Sciences College of Dentistry, Memphis, Tenn
| | - Jegdish Babu
- Department of Biosciences Research, University of Tennessee Health Sciences College of Dentistry, Memphis, Tenn
| | - Tolou Shokuhfar
- Department of Bioengineering, University of Illinois, Chicago, Ill
| | - Seongbong Jo
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, Oxford, Miss
| | - Ricardo Magini
- Department of Periodontology, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Franklin Garcia-Godoy
- Department of Biosciences Research, University of Tennessee Health Sciences College of Dentistry, Memphis, Tenn
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9
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Wang Y, Li H, Feng Y, Jiang P, Su J, Huang C. Dual micelles-loaded gelatin nanofibers and their application in lipopolysaccharide-induced periodontal disease. Int J Nanomedicine 2019; 14:963-976. [PMID: 30787610 PMCID: PMC6368126 DOI: 10.2147/ijn.s182073] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Combined therapies utilizing inhibitors to remove pathogens are needed to suppress lipopolysaccharide (LPS)-induced periodontal disease. We prepared a novel, multi-agent delivery scaffold for periodontal treatment. METHODS In this study, we synthesized SP600125 (a JNK inhibitor) and SB203580 (a p38 inhibitor) drug-loaded poly(ethylene glycol)-block-caprolactone copolymer via dialysis method. The physical property of micelles was characterized through dynamic light scattering and transmission electron microscopy. The cell growth and LPS-induced MMP-2 and MMP-13 expression were evaluated through CCK-8, real-time PCR and Western blot assay. The release of SP600125 and SB203580 from different scaffolds was estimated. Microcomputed tomography and histology were used for evaluating the effect of the micelles-loaded nanofibers on the treatment of class II furcation defects in dogs. RESULTS The drug was then successfully incorporated into gelatin fibers during electrospinning process. We confirmed that the micelles had spherical structure and an average particle size of 160 nm for SP600125-micelles (SP-Ms) and 150 nm for SB203580-micelles (SB-Ms). The nanofiber scaffold showed excellent encapsulation capability, in vitro drug-release behavior, and cell compatibility. Real-time PCR and Western blot assay further indicated that LPS-induced MMP-2 and MMP-13 expression was significantly inhibited by the scaffold. CONCLUSION The results suggested that the dual drug-loaded system developed in this study might become a highly effective therapy for periodontal disease.
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Affiliation(s)
- Yabing Wang
- Department of Prosthodontics, School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China,
| | - Haoxuan Li
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China,
| | - Yanhuizhi Feng
- Department of Periodontics, School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Peilin Jiang
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China,
| | - Jiansheng Su
- Department of Prosthodontics, School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China,
| | - Chen Huang
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China,
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Semyari H, Salehi M, Taleghani F, Ehterami A, Bastami F, Jalayer T, Semyari H, Hamed Nabavi M, Semyari H. Fabrication and characterization of collagen–hydroxyapatite-based composite scaffolds containing doxycycline via freeze-casting method for bone tissue engineering. J Biomater Appl 2018; 33:501-513. [DOI: 10.1177/0885328218805229] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In this study, hydroxyapatite nanoparticles containing 10% doxycycline, a structural isomer of tetracycline, was prepared by the co-precipitation method. It was added to collagen solution for the preparation of the scaffold with freeze-casting method in order to develop a composite scaffold with both antibacterial and osteoinductive properties for repairing bone defects. The scaffolds were evaluated regarding their morphology, porosity, degradation and cellular response. The scaffolds for further investigation were added in a rat calvaria defect model. The study showed that after eight weeks, the bone formation was relatively higher in the collagen/nano-hydroxyapatite/doxycycline group with completely filled defect when compared with other groups. Histopathological evaluation showed that the defect in the collagen/nano-hydroxyapatite/doxycycline group was fully replaced by the new bone and connective tissue. Our results provide evidence supporting the possible applicability of doxycycline-containing scaffolds for successful bone regeneration.
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Affiliation(s)
| | - Majid Salehi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
- Tissue Engineering and stem cells research center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Ferial Taleghani
- Department of Periodontology, Dental School, Shahed University, Tehran, Iran
| | - Arian Ehterami
- Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Farshid Bastami
- Dental research center, research institute of dental Science, school of dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Oral and maxillofacial surgery department, school of dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Hadis Semyari
- Dental student, faculty of dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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11
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Han J, Ma B, Liu H, Wang T, Wang F, Xie C, Li M, Liu H, Ge S. Hydroxyapatite nanowires modified polylactic acid membrane plays barrier/osteoinduction dual roles and promotes bone regeneration in a rat mandible defect model. J Biomed Mater Res A 2018; 106:3099-3110. [DOI: 10.1002/jbm.a.36502] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 06/13/2018] [Accepted: 07/02/2018] [Indexed: 01/01/2023]
Affiliation(s)
- Jing Han
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration; School of Stomatology, Shandong University; Jinan 250012 China
- Department of Periodontology; School of Stomatology, Shandong University; Jinan 250012 China
| | - Baojin Ma
- State Key Laboratory of Crystal Materials; Shandong University; Jinan 250100 China
| | - Hongrui Liu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration; School of Stomatology, Shandong University; Jinan 250012 China
- Department of Bone Metabolism; School of Stomatology Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration; Jinan 250100 China
| | - Ting Wang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration; School of Stomatology, Shandong University; Jinan 250012 China
- Department of Periodontology; School of Stomatology, Shandong University; Jinan 250012 China
| | - Fang Wang
- Department of Periodontology; Yantai Stomatological Hospital; Yantai 264001 China
| | - Chengjia Xie
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration; School of Stomatology, Shandong University; Jinan 250012 China
- Department of Periodontology; School of Stomatology, Shandong University; Jinan 250012 China
| | - Minqi Li
- Department of Bone Metabolism; School of Stomatology Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration; Jinan 250100 China
| | - Hong Liu
- State Key Laboratory of Crystal Materials; Shandong University; Jinan 250100 China
| | - Shaohua Ge
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration; School of Stomatology, Shandong University; Jinan 250012 China
- Department of Periodontology; School of Stomatology, Shandong University; Jinan 250012 China
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12
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Ding L, Zhang P, Wang X, Hao J, Aoki K, Kuroda S, Kasugai S. Effect of doxycycline-treated hydroxyapatite surface on bone apposition: A histomophometric study in murine maxillae. Dent Mater J 2017; 37:130-138. [PMID: 29176300 DOI: 10.4012/dmj.2017-007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Improved osseointegration of dental implants is imperative in clinic. Effect of doxycycline on promoting bone formation after implant placement was expected due to its inhibitory properties on inflammation and osteoclastogenesis. To evaluate new bone formation on the hydroxyapatite (HA)-coated implant surface, which was treated with doxycycline, in comparison with the untreated HA surface, half of the HA-coated implants were soaked in doxycycline solution (DOX group) whereas the other HA-coated implants were untreated (HA group). Eight weeks after extracting the maxillary first molars of 4-week-old male mice, the implants of both groups were placed at the extracted site. 4 and 8 weeks after surgery, the samples were evaluated radiologically and histomorphometrically. Bone-implant contact of DOX group was statistically higher than the one of HA group at 4 and 8 weeks. New bone area between the threads of the implants also statistically increased at 8 weeks in DOX group compared to HA group.
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Affiliation(s)
- Lin Ding
- Department of Oral Implantology and Regenerative Dental Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Peng Zhang
- Department of Oral Implantology and Regenerative Dental Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Xin Wang
- VIP Clinic, Beijing Stomatological Hospital, Capital Medical University
| | - Jia Hao
- Department of Oral Implantology and Regenerative Dental Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Kazuhiro Aoki
- Department of Bio-Matrix (Pharmacology), Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Shinji Kuroda
- Department of Oral Implantology and Regenerative Dental Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Shohei Kasugai
- Department of Oral Implantology and Regenerative Dental Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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13
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Sun X, Xu C, Wu G, Ye Q, Wang C. Poly(Lactic-co-Glycolic Acid): Applications and Future Prospects for Periodontal Tissue Regeneration. Polymers (Basel) 2017; 9:E189. [PMID: 30970881 PMCID: PMC6432161 DOI: 10.3390/polym9060189] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 05/08/2017] [Accepted: 05/11/2017] [Indexed: 12/28/2022] Open
Abstract
Periodontal tissue regeneration is the ultimate goal of the treatment for periodontitis-affected teeth. The success of regenerative modalities relies heavily on the utilization of appropriate biomaterials with specific properties. Poly (lactic-co-glycolic acid) (PLGA), a synthetic aliphatic polyester, has been actively investigated for periodontal therapy due to its favorable mechanical properties, tunable degradation rates, and high biocompatibility. Despite the attractive characteristics, certain constraints associated with PLGA, in terms of its hydrophobicity and limited bioactivity, have led to the introduction of modification strategies that aimed to improve the biological performance of the polymer. Here, we summarize the features of the polymer and update views on progress of its applications as barrier membranes, bone grafts, and drug delivery carriers, which indicate that PLGA can be a good candidate material in the field of periodontal regenerative medicine.
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Affiliation(s)
- Xiaoyu Sun
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, China.
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam 1081 HV, The Netherlands.
| | - Chun Xu
- Laboratory of Regenerative Dentistry, School of Dentistry, The University of Queensland, Brisbane 4006, Australia.
| | - Gang Wu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam 1081 HV, The Netherlands.
| | - Qingsong Ye
- Laboratory of Regenerative Dentistry, School of Dentistry, The University of Queensland, Brisbane 4006, Australia.
| | - Changning Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, China.
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14
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Alterman JB, Huff JF. Guided Tissue Regeneration in Four Teeth Using a Liquid Polymer Membrane. J Vet Dent 2016; 33:185-194. [DOI: 10.1177/0898756416676564] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Periodontal disease is one of the most common diseases diagnosed in dogs and cats. Guided tissue regeneration (GTR) is a treatment alternative to extraction of strategically important teeth. The barrier membrane used in the GTR procedure is of key importance. The purpose of this case series was to evaluate a liquid polymer gel as a membrane for GTR. The polymer gel ( N-methyl-2-pyrrolidone and poly [DL-lactide]) combined with 8.5% doxycycline hyclate was used in place of a traditional membrane in 4 teeth. The teeth were re-examined 6 months postoperatively for radiographic evaluation. A decrease in probing depth and new alveolar bone formation was seen 6 months postoperatively. Improvement in periodontal disease stage was seen in 2 of the 4 teeth. Larger controlled trials with histopathologic evaluation are indicated to further assess the use of this polymer as a membrane in GTR. However, the clinical outcomes of all 4 treated teeth were considered successful.
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Affiliation(s)
- Jennifer B. Alterman
- Dentistry and Oral Surgery Department, VCA Animal Specialty Center of South Carolina, Columbia, SC, USA
- Dentistry Department, Blue Pearl Veterinary Partners of Midvale, Midvale, UT, USA
| | - John F. Huff
- VCA Alameda East Veterinary Hospital, Denver, CO, USA
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15
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Limirio PHJO, Rocha FS, Batista JD, Guimarães-Henriques JC, de Melo GB, Dechichi P. The Effect of Local Delivery Doxycycline and Alendronate on Bone Repair. AAPS PharmSciTech 2016; 17:872-7. [PMID: 26381914 DOI: 10.1208/s12249-015-0411-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 09/02/2015] [Indexed: 11/30/2022] Open
Abstract
The aim of the present study was to investigate the local effect of 10% doxycycline and 1% alendronate combined with poly(lactic-co-glycolic acid) (PLGA) on bone repair. Thirty rats were divided into three groups, as follows: control group (CG), drug group (DG), and vehicle-PLGA group (VG). Bone defect was created in the right femur and filled with the following: blood clot (CG); PLGA gel, 10% doxycycline and 1% alendronate (DG); or vehicle-PLGA (VG). The animals were euthanized 7 or 15 days after surgery. Bone density, bone matrix and number of osteoclasts were quantified. At 7 days, the findings showed increased density in DG (177.75 ± 76.5) compared with CG (80.37 ± 27.4), but no difference compared with VG (147.1 ± 41.5); no statistical difference in bone neoformation CG (25.6 ± 4.8), VG (27.8 ± 4), and DG (18.9 ± 7.8); and decrease osteoclasts in DG (4.6 ± 1.9) compared with CG (26.7 ± 7.4) and VG (17.3 ± 2.7). At 15 days, DG (405.1 ± 63.1) presented higher density than CG (213.2 ± 60.9) and VG (283.4 ± 85.8); there was a significant increase in percentage of bone neoformation in DG (31.5 ± 4.2) compared with CG (23 ± 4), but no difference compared with VG (25.1 ± 2.9). There was a decreased number of osteoclasts in DG (20.7 ± 4.7) and VG (29.5 ± 5.4) compared with CG (40 ± 9.4). The results suggest that the association of 10% doxycycline and 1% alendronate with PLGA-accelerated bone repair.
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16
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Morand DN, Davideau JL, Clauss F, Jessel N, Tenenbaum H, Huck O. Cytokines during periodontal wound healing: potential application for new therapeutic approach. Oral Dis 2016; 23:300-311. [PMID: 26945691 DOI: 10.1111/odi.12469] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 02/12/2016] [Accepted: 03/01/2016] [Indexed: 12/15/2022]
Abstract
Regeneration of periodontal tissues is one of the main goals of periodontal therapy. However, current treatment, including surgical approach, use of membrane to allow maturation of all periodontal tissues, or use of enamel matrix derivatives, presents limitations in their indications and outcomes leading to the development of new tissue engineering strategies. Several cytokines are considered as key molecules during periodontal destruction process. However, their role during each phase of periodontal wound healing remains unclear. Control and modulation of the inflammatory response and especially, release of cytokines or activation/inhibition in a time- and spatial-controlled manner may be a potential perspective for periodontal tissue engineering. The aim of this review was to summarize the specific role of several cytokines during periodontal wound healing and the potential therapeutic interest of inflammatory modulation for periodontal regeneration especially related to the expression sequence of cytokines.
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Affiliation(s)
- D N Morand
- INSERM (French National Institute of Health and Medical Research), UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine Laboratory, Faculté de Médecine de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France.,Department of periodontology, Dental Faculty, University of Strasbourg, Strasbourg, France
| | - J-L Davideau
- INSERM (French National Institute of Health and Medical Research), UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine Laboratory, Faculté de Médecine de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France.,Department of periodontology, Dental Faculty, University of Strasbourg, Strasbourg, France
| | - F Clauss
- INSERM (French National Institute of Health and Medical Research), UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine Laboratory, Faculté de Médecine de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France.,Department of periodontology, Dental Faculty, University of Strasbourg, Strasbourg, France
| | - N Jessel
- INSERM (French National Institute of Health and Medical Research), UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine Laboratory, Faculté de Médecine de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - H Tenenbaum
- INSERM (French National Institute of Health and Medical Research), UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine Laboratory, Faculté de Médecine de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France.,Department of periodontology, Dental Faculty, University of Strasbourg, Strasbourg, France
| | - O Huck
- INSERM (French National Institute of Health and Medical Research), UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine Laboratory, Faculté de Médecine de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France.,Department of periodontology, Dental Faculty, University of Strasbourg, Strasbourg, France
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17
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Abstract
BACKGROUND A recurrence rate of 19% to 23% has been reported in juxtaphyseal aneurysmal bone cysts (ABC) without en bloc resection or amputation. No percutaneous surgical techniques or drug treatments have demonstrated consistent bone healing with normal physeal growth and a recurrence rate of <19%. Doxycycline has properties that may make it an appropriate agent for percutaneous treatment of juxtaphyseal ABC in skeletally immature patients. METHODS We retrospectively reviewed 16 patients who underwent percutaneous treatment of ABCs with doxycycline from 2006 to 2011. The mean age was 7.1 years (range, 2 to 15 y). There were 16 treatment locations: humerus (9), tibia (3), fibula (2), femur (1), and ulna (1). Sixteen patients completed treatment involving 102 treatment sessions (2 to 14 sessions per patient). Treatment response was evaluated radiographically by measuring the lytic component, thickness of involved cortex, and signs of bony remodeling, and evidence of physeal growth arrest. Recurrence was indicated by new areas of lytic destruction after completion of treatment. The minimum follow-up was 18 months (mean, 39 mo). RESULTS All 16 patients demonstrated reduction in lytic destruction, bony healing, and bony remodeling. One patient demonstrated recurrent minimal lytic destruction after 20 months of observation. Seven patients (7/16, 44%) demonstrated physeal ABC involvement; 5 of 7 patients healed with a physeal bone bridge, all ≤15% of the physeal surface area, 1 with mild central physeal deformity. All patients with focal transphyseal ABC involvement (4/4, 100%) demonstrated focal bone bridge after treatment. No patient had diffuse physeal growth arrest; only patients with intraphyseal or transphyseal ABC involvement had focal physeal growth arrest. CONCLUSIONS In this series, patients undergoing percutaneous doxycycline treatment of juxtaphyseal ABCs demonstrated ABC healing and a recurrence rate of 6% at >18 months. Patients without physeal ABC involvement demonstrated no evidence of physeal growth arrest.
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18
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Kütan E, Duygu-Çapar G, Özçakir-Tomruk C, Dilek OC, Özen F, Erdoğan Ö, Özdemir I, Korachi M, Gürel A. Efficacy of doxycycline release collagen membrane on surgically created and contaminated defects in rat tibiae: A histopathological and microbiological study. Arch Oral Biol 2015; 63:15-21. [PMID: 26658367 DOI: 10.1016/j.archoralbio.2015.11.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 06/29/2015] [Accepted: 11/02/2015] [Indexed: 10/22/2022]
Abstract
BACKGROUND The effects of systemic antibiotics on controlling infective pathogens after guided bone regeneration(GBR) procedures especially in membrane exposures are limited. However, local administrations of antibiotics are rare in GBR techniques. AIM The aim of this study was to investigate the osteogenesis potential and the antibacterial effect of a doxycycline releasing collagen membrane in surgically created and contaminated defects in rat tibiae. MATERIAL AND METHODS Defects were created in 20 rats that were randomly divided in to two groups: control group (defect contaminated by Porphyromonas gingivalis, filled with bone graft and covered by collagen membrane); test group (defect contaminated by P. gingivalis filled with bone graft and covered by collagen membrane containing 1mg/cm(2) doxycycline. Animals were sacrificed post surgically on the 14th day for microbiologic evaluation and on the 28th day for histopathological evaluation. RESULTS The degree of osteogenesis in the test group was seen to be significantly higher than control group (p: 0.011; p<0.05). Furthermore in test group, no bacterial growth was observed. The bacteria counts were determined between 1×104 and 268×104CFU/g with a median of 1.32×104 for control group. CONCLUSIONS Within the limitations of this study, the results of the present study suggests that the use of a doxycycline releasing membrane has a positive effect on contaminated GBR procedures for limiting P. gingivalis infections leading to bone formation following GBR procedures in a rat model.
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Affiliation(s)
- Esma Kütan
- Department of Oral Implantology, Faculty of Dentistry, Yeditepe University,Göztepe, Istanbul, Turkey.
| | - Gonca Duygu-Çapar
- Department of Oral and Maxillofacial Surgery, Trakya University, Edirne, Turkey
| | - Ceyda Özçakir-Tomruk
- Department of Oral and Maxillofacial Surgery, Yeditepe University, Göztepe, Istanbul, Turkey
| | - Ozkan Cem Dilek
- Department of Oral Implantology, Faculty of Dentistry, Yeditepe University, Göztepe, Istanbul, Turkey
| | - Fatma Özen
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, Kayışdaği, Istanbul, Turkey
| | - Özge Erdoğan
- Department of Pathology, Faculty of Veterinary, Istanbul University, Avcilar, Istanbul, Turkey
| | - Ipek Özdemir
- Department of Biological Sciences and Bioengineering, Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla, Istanbul, Turkey
| | - May Korachi
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, Kayışdaği, Istanbul, Turkey
| | - Aydin Gürel
- Department of Pathology, Faculty of Veterinary,Istanbul University, Avcilar, Istanbul, Turkey
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Sam G, Pillai BRM. Evolution of Barrier Membranes in Periodontal Regeneration-"Are the third Generation Membranes really here?". J Clin Diagn Res 2014; 8:ZE14-7. [PMID: 25654055 DOI: 10.7860/jcdr/2014/9957.5272] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Accepted: 09/17/2014] [Indexed: 11/24/2022]
Abstract
In the last decades, Guide Tissue Regeneration (GTR) technique has been applied for the treatment of various periodontal defects such as intrabony defects, furcation involvements and localized gingival recession defects. From early days of using membranes with the simple aim of minimizing toxic response in the host, membranes have come a long way. Third generation membranes not only act as barriers but also as delivery devices to release specific agents. Many clinical trials have focused on using membranes as delivery devices for antibiotics and growth factors. In this article we take a brief look at the evolution of barrier membranes and future avenues with regard to third generation membranes.
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Affiliation(s)
- George Sam
- Senior Resident, Department of Periodontics, Goverment Dental College , Kottayam, Kerala, India
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20
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Agarwal A, Bhattacharya HS, Srikanth G, Singh A. Comparative evaluation of decalcified freeze dried bone allograft with and without local doxycycline in non-contained human periodontal infrabony defects. J Indian Soc Periodontol 2013; 17:490-4. [PMID: 24174730 PMCID: PMC3800413 DOI: 10.4103/0972-124x.118322] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Accepted: 07/11/2013] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Doxycycline has been advocated as useful adjuncts in periodontal therapy not only due to their antimicrobial actions, but also to their recently recognized anti-collagenolytic, anti-inflammatory, osteoclast inhibitory and fibroblast stimulating property. The purpose of the present cohort study was to evaluate the regenerative outcomes of bone graft with or without local doxycycline in non-contained infrabony periodontal defects. MATERIALS AND METHODS 16 one or two wall infrabony defects, in 11 patients suffering from moderate to severe chronic periodontitis, aged 35-60 years, were randomly divided for bone graft, alone (control) and with doxycycline (test) for the study. At baseline, after 3 months and after 6 months of post-operative period, pocket probing depth (PPD), clinical attachment level (CAL), radiological bone fill (RBF) and alveolar height reduction were recorded. Analysis of variance and Newman-Keuls post-hoc test were used or statistical analysis. A two-tailed probability (P) value P < 0.05 was considered to be statistically significant. RESULTS For the control group PPD reduction 2.00 ± 0.18 mm, CAL gain 1.38 ± 0.17 mm, RBF 0.63 ± 0.27 mm (18.0%) was observed while in the test group PPD reduction 2.00 ± 0.38 mm, CAL gain 1.25 ± 0.31 mm, RBF 0.75 ± 0.31 mm (20.7%) was evaluated. While alveolar height reduction for the control group and test group was 13% and 12.5% respectively. CONCLUSION The study confirmed no added benefits of local doxycycline, as compared with bone graft alone, for regeneration of non-contained human periodontal infrabony defects.
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Affiliation(s)
- Ashish Agarwal
- Department of Periodontology, Institute of Dental Sciences, Bareilly, India
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21
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Requicha JF, Viegas CA, Hede S, Leonor IB, Reis RL, Gomes ME. Design and characterization of a biodegradable double-layer scaffold aimed at periodontal tissue-engineering applications. J Tissue Eng Regen Med 2013; 10:392-403. [DOI: 10.1002/term.1816] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 07/24/2013] [Accepted: 07/24/2013] [Indexed: 12/21/2022]
Affiliation(s)
- João F. Requicha
- 3B's Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Guimarães Portugal
- ICVS/3B's; PT Government Associated Laboratory; Braga/Guimarães Portugal
- Department of Veterinary Sciences; University of Trás-os-Montes e Alto Douro; Vila Real Portugal
| | - Carlos A. Viegas
- 3B's Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Guimarães Portugal
- ICVS/3B's; PT Government Associated Laboratory; Braga/Guimarães Portugal
- Department of Veterinary Sciences; University of Trás-os-Montes e Alto Douro; Vila Real Portugal
| | - Shantesh Hede
- 3B's Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Guimarães Portugal
- ICVS/3B's; PT Government Associated Laboratory; Braga/Guimarães Portugal
| | - Isabel B. Leonor
- 3B's Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Guimarães Portugal
- ICVS/3B's; PT Government Associated Laboratory; Braga/Guimarães Portugal
| | - Rui L. Reis
- 3B's Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Guimarães Portugal
- ICVS/3B's; PT Government Associated Laboratory; Braga/Guimarães Portugal
| | - Manuela E. Gomes
- 3B's Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Guimarães Portugal
- ICVS/3B's; PT Government Associated Laboratory; Braga/Guimarães Portugal
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22
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Shiels WE, Mayerson JL. Percutaneous doxycycline treatment of aneurysmal bone cysts with low recurrence rate: a preliminary report. Clin Orthop Relat Res 2013; 471:2675-83. [PMID: 23670673 PMCID: PMC3705068 DOI: 10.1007/s11999-013-3043-2] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Accepted: 04/30/2013] [Indexed: 01/31/2023]
Abstract
BACKGROUND Aneurysmal bone cyst (ABC) has a recurrence rate of between 12% and 71% without en bloc resection or amputation. There is no percutaneous ABC treatment drug regimen demonstrating consistent evidence of bone healing with recurrence of < 12%. Doxycycline has properties that may make it appropriate for percutaneous treatment. QUESTIONS/PURPOSES We therefore asked: (1) Is there reduction in ABC lytic cyst volume with injectable doxycycline? (2) Is it associated with thickening of involved bony cortex? (3) Is the recurrence rate after percutaneous treatment < 12%? METHODS We retrospectively reviewed 20 patients who underwent percutaneous treatment of ABCs with doxycycline from 2006 to 2010. The mean age was 10 years (range, 3-18 years). There were 21 treatment locations: humerus (six), spine (five), clavicle (two), fibula (one), femur (two), ulna (two), tibia (two), and scapula (one). Twenty patients completed treatment involving 118 treatment sessions (two to 14 sessions per patient). Treatment response was evaluated radiographically by measuring the lytic component and thickness of involved cortex. Recurrence was indicated by new areas of lytic destruction after completion of treatment. The minimum followup was 24 months (mean, 38 months). RESULTS Twenty of 20 patients demonstrated reduction in lytic destruction and bony healing. All patients demonstrated cortical thickening. One patient demonstrated recurrent minimal lytic destruction after 20 months of observation. CONCLUSIONS In this series, patients undergoing percutaneous doxycycline treatment of ABCs demonstrated a healing response and a recurrence rate of 5% at more than 24 months.
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Affiliation(s)
- William E Shiels
- Department of Radiology, The Ohio State University Medical Center and Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205, USA.
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23
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Reis ECC, Borges APB, del Carlo RJ, Oliveira PM, Sepúlveda RV, Fernandes NA, Martins LMA, Carvalho TB. Guided tissue regeneration using rigid absorbable membranes in the dog model of chronic furcation defect. Acta Odontol Scand 2013; 71:372-80. [PMID: 22587413 DOI: 10.3109/00016357.2012.680909] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Absorbable membranes are used to promote the regeneration of periodontal defects by Guided Tissue Regeneration (GTR). However, their collapse into the defect is commonly reported, impairing regeneration. Therefore, absorbable but rigid membranes aiming at preventing such collapse were developed and analyzed in periodontal regeneration. MATERIALS AND METHODS Membranes were analyzed in class II furcation defects in dogs; procedures included periodontal disease induction, prophylaxis and GTR (treated groups) or open flap debridement alone (control group). For GTR, the membranes were made of either 25% hydroxyapatite (HA) in polyhydroxybutyrate matrix (PHB) or 35% HA in PHB. Animals were clinically evaluated for gingival recession, clinical attachment level (CAL) and biopsies were collected at 60 and 120 days. Bone volume, trabeculae number, trabecular thickness and trabecular separation were quantified by micro-computed tomography, followed by histology. RESULTS Membrane exposure was observed in both treated groups (25 and 35% HAP) from the 8(th) day after surgery, continuously progressing until 120 days. Mean CAL for all groups remained above normal values for dogs. Bone volumetric values were not significantly different. Partial formation of bone, cementum and periodontal ligament was observed in treated groups. An inflammatory infiltrate was observed in the dense connective tissue that partially filled the center of the treated defects with active osteoclasts on bone surface. CONCLUSION Although partial regeneration of the defect was observed, it was limited by wound contamination. Consequently, rigid absorbable membranes made of HA and PHB failed to improve the regeneration of class II furcation defects in dogs.
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Kaur K, Sikri P. Evaluation of the effect of allograft with doxycycline versus the allograft alone in the treatment of infrabony defects: A controlled clinical and radiographical study. Dent Res J (Isfahan) 2013; 10:238-46. [PMID: 23946743 PMCID: PMC3731967 DOI: 10.4103/1735-3327.113359] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Successful prevention and treatment of periodontal disease are contingent on effective control of periodontopathic microbiota based on the premise of periodontal disease being infectious disorders. An anti-microbial agent, i.e., doxycycline has been incorporated into the allograft to control infection and facilitate healing during and after periodontal therapy. MATERIALS AND METHODS Using a split-mouth design, 15 patients showing clinical evidence of almost identical bilateral infrabony defects requiring bone grafting procedures were randomly selected. In each patient, infrabony defects on one side were designated as Group A (control group) and infrabony defects of the contralateral side of the same arch were designated as Group B (test group). Clinical assessment of probing pocket depth and attachment level and radiographic evaluation of the defect depth was done pre-operatively and at 12-week and 24-week post-operatively. The relative efficacy of the two treatment modalities was evaluated using paired Student's t-test and the comparative evaluation between the two groups over the 3 time intervals was done using independent Student's t-test. RESULTS Both the groups exhibited a highly significant reduction in probing depth and gain in clinical attachment level (CAL) and a linear bone fill at the end of 12 and 24 weeks. Comparative evaluation showed a statistically significant gain in bone fill in Group B as compared to Group A, whereas a non-significant reduction in probing depth and gain in CALs between the two groups at the end of 24 weeks (whereas mean reduction in probing depth and gain in CAL were also greater in Group B but the difference was statistically non-significant). CONCLUSION The increase in linear bone fill in Group B signifies the role of doxycycline in augmenting regenerative potential of allograft by combating residual infection and through host modulation.
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Affiliation(s)
- Kulmeet Kaur
- Department of Periodontology and Oral Implantology, B.J.S. Dental College, Ludhiana, India
| | - Poonam Sikri
- Department of Periodontology and Oral Implantology, Desh Bhagat Dental College and Research Institute, Mukatsar, Punjab, India
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Local delivery of small and large biomolecules in craniomaxillofacial bone. Adv Drug Deliv Rev 2012; 64:1152-64. [PMID: 22429663 DOI: 10.1016/j.addr.2012.03.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 02/08/2012] [Accepted: 03/05/2012] [Indexed: 12/18/2022]
Abstract
Current state of the art reconstruction of bony defects in the craniomaxillofacial (CMF) area involves transplantation of autogenous or allogenous bone grafts. However, the inherent drawbacks of this approach strongly urge clinicians and researchers to explore alternative treatment options. Currently, a wide interest exists in local delivery of biomolecules from synthetic biomaterials for CMF bone regeneration, in which small biomolecules are rapidly emerging in recent years as an interesting adjunct for upgrading the clinical treatment of CMF bone regeneration under compromised healing conditions. This review highlights recent advances in the local delivery small and large biomolecules for the clinical treatment of CMF bone defects. Further, it provides a perspective on the efficacy of biomolecule delivery in CMF bone regeneration by reviewing presently available reports of pre-clinical studies using various animal models.
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Muthukuru M, Sun J. Doxycycline counteracts bone morphogenic protein 2-induced osteogenic mediators. J Periodontol 2012; 84:656-65. [PMID: 22799755 DOI: 10.1902/jop.2012.120338] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Microbial colonization during wound healing may exaggerate the inflammatory response and could adversely affect the outcome of periodontal regeneration. Bone morphogenic proteins (BMPs) directly augment bone regeneration. Interestingly, inhibitors of tissue collagenases, such as sub-antimicrobial-dose doxycycline, also indirectly promote hard-tissue regeneration. In this study, it is hypothesized that BMP2-mediated bone regeneration would be positively affected by simultaneous treatment of sub-antimicrobial-dose doxycycline. METHODS Human periodontal ligament (PDL) cells were stimulated with: 1) 10 ng/mL BMP2; 2) 1 μg/mL doxycycline; or 3) a combination of the two. The expressions of alkaline phosphatase, osteocalcin, osteonectin, and osteopontin were analyzed along with in vitro mineralized nodule formation and calcium accumulation. RESULTS BMP2 was a potent inducer of osteocalcin/osteopontin (statistically significant at P <0.01) and osteonectin in PDL cells relative to stimulation with doxycycline. However, doxycycline relative to BMP2 (statistically significant at P <0.001) upregulated the expression of alkaline phosphatase and in vitro mineralized nodule formation. Contrary to expected results, combined BMP2 and doxycycline induced a statistically significant (P <0.001) downregulation of alkaline phosphatase, osteocalcin, osteonectin/osteopontin, and in vitro mineralized nodule formation compared to stimulation with either BMP2 or doxycycline alone. CONCLUSIONS Combined treatment of BMP2 and doxycycline in PDL cells counteracts the osteogenic mediators. Molecular interaction of growth factors should be explored before using a combination of these biologic molecules. It is important and clinically relevant to determine whether tetracycline and its other derivatives also counteract BMP functions. Animal models should be used to confirm these in vitro results.
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Affiliation(s)
- Manoj Muthukuru
- Department of Periodontics, University of Washington, Seattle, WA, USA.
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Tariq M, Iqbal Z, Ali J, Baboota S, Talegaonkar S, Ahmad Z, Sahni JK. Treatment modalities and evaluation models for periodontitis. Int J Pharm Investig 2012; 2:106-22. [PMID: 23373002 PMCID: PMC3555006 DOI: 10.4103/2230-973x.104394] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Periodontitis is the most common localized dental inflammatory disease related with several pathological conditions like inflammation of gums (gingivitis), degeneration of periodontal ligament, dental cementum and alveolar bone loss. In this perspective, the various preventive and treatment modalities, including oral hygiene, gingival irrigations, mechanical instrumentation, full mouth disinfection, host modulation and antimicrobial therapy, which are used either as adjunctive treatments or as stand-alone therapies in the non-surgical management of periodontal infections, have been discussed. Intra-pocket, sustained release systems have emerged as a novel paradigm for the future research. In this article, special consideration is given to different locally delivered anti-microbial and anti inflammatory medications which are either commercially available or are currently under consideration for Food and Drug Administration (FDA) approval. The various in vitro dissolution models and microbiological strain investigated to impersonate the infected and inflamed periodontal cavity and to predict the in vivo performance of treatment modalities have also been thrashed out. Animal models that have been employed to explore the pathology at the different stages of periodontitis and to evaluate its treatment modalities are enlightened in this proposed review.
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Affiliation(s)
- Mohammad Tariq
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi-110062, India
| | - Zeenat Iqbal
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi-110062, India
| | - Javed Ali
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi-110062, India
| | - Sanjula Baboota
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi-110062, India
| | - Sushama Talegaonkar
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi-110062, India
| | - Zulfiqar Ahmad
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi-110062, India
| | - Jasjeet K Sahni
- Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi-110062, India
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Norowski PA, Babu J, Adatrow PC, Garcia-Godoy F, Haggard WO, Bumgardner JD. Antimicrobial Activity of Minocycline-Loaded Genipin-Crosslinked Nano-Fibrous Chitosan Mats for Guided Tissue Regeneration. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/jbnb.2012.324054] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Carlo Reis EC, Borges APB, Araújo MVF, Mendes VC, Guan L, Davies JE. Periodontal regeneration using a bilayered PLGA/calcium phosphate construct. Biomaterials 2011; 32:9244-53. [PMID: 21885122 DOI: 10.1016/j.biomaterials.2011.08.040] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Accepted: 08/14/2011] [Indexed: 10/17/2022]
Abstract
The regeneration of tissues affected by periodontal disease is a complex process; it encompasses the formation of bone, cementum and periodontal ligament. We developed a semi-rigid PLGA (polylactide-co-glycolide acid)/CaP (calcium phosphate) bilayered biomaterial construct to promote periodontal regeneration, which has a continuous outer barrier membrane and an inner topographically complex component. Our experimental model compared periodontal prophylaxis alone with prophylaxis and biomaterial implantation in the treatment of class II furcation defects in dogs. Clinical evaluation, micro-computed tomography, histology and backscattered electron imaging were used for data analysis. Healing occurred uneventfully and bone volumetric values, trabecular number and trabecular thickness were all significantly greater in the treated group; while trabecular separation was significantly greater in the control group. New cementum, bone, and periodontal ligament with Sharpey fibre insertions were only seen in the treated group. Although periodontal regeneration has been reported elsewhere, the advantages of employing our bilayered PLGA + CaP construct are twofold: 1)it did not collapse into the defect; and, 2) its inner side was able to retain the blood clot throughout the buccal defect. The result was greater periodontal regeneration than has previously been reported with traditional flexible membranes.
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Affiliation(s)
- Emily C Carlo Reis
- Departamento de Veterinária, Universidade Federal de Viçosa, Campus Universitário s/n, Viçosa, Minas Gerais, CEP 36570-000, Brazil
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Li J, Zuo Y, Man Y, Mo A, Huang C, Liu M, Jansen JA, Li Y. Fabrication and biocompatibility of an antimicrobial composite membrane with an asymmetric porous structure. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2010; 23:81-96. [PMID: 21156105 DOI: 10.1163/092050610x543159] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A composite slurry from silver ion-substituted nano-hydroxyapatite, titania nano-particles and polyamide 66 (Ag-nHA/TiO(2)/PA66) was prepared and used to fabricate a novel antimicrobial membrane with a gradient porous structure for guided bone regeneration (GBR). Subsequently, assays were performed to determine the cytocompatibility, as well as the bone biocompatibility of the prepared membranes. To investigate the cytocompatibility of the Ag-nHA/TiO(2)/PA66 membrane, in vitro studies were done with osteoblast-like cells (MG63) and the viability, alkaline phosphatase activity (ALP) and morphology of cells cultured on the membrane were determined. The bone biocompatibility of the membranes was finally assessed in animal experiments, in which nano-hydroxyapatite/polyamide 66 (nHA/PA66) and pure polyamide 66 (PA66) membranes were compared. The in vitro cell-culture experiments showed that Ag-nHA/TiO(2)/PA66 antimicrobial membrane evoked good cell affinity and cytocompatibility. The in vivo study showed that Ag-nHA/TiO(2)/PA66 asymmetric porous barrier membrane resulted in complete closure of 5-mm bone defects as created in the skull of rats after 8 weeks of implantation. In conclusion, the Ag-nHA/TiO(2)/PA66 membrane has the potential to be applied in GBR, especially in infected tissue or areas with high bacteria concentration.
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Affiliation(s)
- Jidong Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu 610064, P. R. China
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Cheng CF, Lee YY, Chi LY, Chen YT, Hung SL, Ling LJ. Bacterial penetration through antibiotic-loaded guided tissue regeneration membranes. J Periodontol 2009; 80:1471-8. [PMID: 19722798 DOI: 10.1902/jop.2009.090044] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND This study compared bacterial penetration through guided tissue regeneration (GTR) membranes impregnated with antibiotics. METHODS Three barrier membranes, expanded polytetrafluoroethylene (ePTFE) membrane, collagen membrane, and glycolide fiber composite membrane, were loaded with amoxicillin or tetracycline. The penetration of Streptococcus mutans and Aggregatibacter actinomycetemcomitans (previously Actinobacillus actinomycetemcomitans) through the GTR membranes was achieved using a device consisting of an inner tube and an outer bottle filled with culture media. RESULTS The penetration of S. mutans or A. actinomycetemcomitans into the inner tubes significantly decreased with all of the antibiotic-loaded membranes compared to membranes without antibiotics. However, differences were found in the behavior of the three membranes. The antibiotic-loaded ePTFE membranes showed the best barrier effect. Moreover, the inhibitory effect of tetracycline on S. mutans was greater than that of amoxicillin for all GTR membranes. Furthermore, the inhibitory effect of tetracycline on A. actinomycetemcomitans was lower than that of amoxicillin with the glycolide fiber membrane. CONCLUSIONS The results showed that penetration of S. mutans and A. actinomycetemcomitans through amoxicillin- or tetracycline-loaded ePTFE membrane, glycolide fiber membrane, and collagen membrane was delayed and/or reduced. Thus, incorporation of an antibiotic into the membrane may be of value when controlling membrane-associated infection during GTR therapy.
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Affiliation(s)
- Chi-Fang Cheng
- Department of Community Dentistry, Zhong-Xiao Branch, Taipei City Hospital, Taipei, Taiwan
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Norowski PA, Bumgardner JD. Biomaterial and antibiotic strategies for peri-implantitis: a review. J Biomed Mater Res B Appl Biomater 2009; 88:530-43. [PMID: 18698626 DOI: 10.1002/jbm.b.31152] [Citation(s) in RCA: 195] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Dental implants have 89% plus survival rates at 10-15 years, but peri-implantitis or dental implant infections may be as high as 14%. Peri-implantitis can limit clinical success and impose health and financial burdens to patients and health providers. The pathogenic species associated with periodontitis (e.g., Fusobacterium ssp, A. actinomycetemcomitans, P. gingivalis) are also associated with peri-implantitis. Incidence of peri-implantitis is highest within the first 12 months after implantation, and is higher in patients who smoke or have poor oral health as well as with calcium-phosphate-coated or surface-roughened implants. Biomaterial therapies using fibers, gels, and beads to deliver antibiotics have been used in the treatment of Peri-implantitis though clinical efficacy is not well documented. Guided tissue regeneration membranes (e.g., collagen, poly-lactic/glycolic acid, chitosan, ePTFE) loaded with antimicrobials have shown success in reosseointegrating infected implants in animal models but have not been proven in humans. Experimental approaches include the development of anti-bioadhesion coatings, coating surfaces with antimicrobial agents (e.g., vancomycin, Ag, Zn) or antimicrobial releasing coatings (e.g., calcium phosphate, polylactic acid, chitosan). Future strategies include the development of surfaces that become antibacterial in response to infection, and improvements in the permucosal seal. Research is still needed to identify strategies to prevent bacterial attachment and enhance normal cell/tissue attachment to implant surfaces.
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Affiliation(s)
- P Andrew Norowski
- Biomedical Engineering Department, Herff College of Engineering, University of Memphis and Joint Biomedical Engineering Program, University of Memphis - University of Tennessee Health Science Center, Memphis, Tennessee, USA.
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Kim IY, Jung UW, Kim CS, Lee YK, Cho KS, Chai JK, Kim CK, Choi SH. Effects of a tetracycline blended polylactic and polyglycolic acid membrane on the healing of one-wall intrabony defects in beagle dogs. Biomed Mater 2007; 2:S106-10. [DOI: 10.1088/1748-6041/2/3/s04] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Boschin F, Blanchemain N, Bria M, Delcourt-Debruyne E, Morcellet M, Hildebrand HF, Martel B. Improved drug delivery properties of PVDF membranes functionalized with β-cyclodextrin—Application to guided tissue regeneration in periodontology. J Biomed Mater Res A 2006; 79:78-85. [PMID: 16758457 DOI: 10.1002/jbm.a.30769] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The purpose of this study was to develop a membrane for guided tissue regeneration applicable in periodontology that could release antimicrobial agent during the healing period. Our strategy consisted to graft beta-cyclodextrin (beta-CD), a molecule that is known to form inclusion complexes with a large variety of drugs, onto PVDF membranes. Grafting occurred by using citric acid that provoked a crosslinking reaction of beta-CD, and the resulting polymer was imprisoned into the porous structure of the PVDF membrane. The reaction produced a weight increase of the membrane, the range of which depended on the temperature and on the time of curing applied in the process. The biological behavior of the membranes evaluated by proliferation and vitality tests showed good proliferation and improved activity of L132 epithelial cells on the raw and on the grafted membranes. Doxycyclin (DOX) and chlorhexidine (CHX) were used as antimicrobial agents. Their inclusion into the beta-CD cavity in aqueous solutions was confirmed by NMR spectroscopy. After the impregnation of the membranes with DOX and CHX, their release was studied in vitro in batch type experiments and measured by UV spectrophotometry. Low amounts of DOX and CHX were delivered from the raw membranes within the first few hours of tests. Grafted membranes, however, delivered DOX and CHX in larger quantities within 24 h and 10 days respectively.
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Affiliation(s)
- F Boschin
- Laboratoire de Chimie Organique et Macromoléculaire, CNRS-UMR 8009, USTL, 59655 Villeneuve d'Ascq, France
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Chen YT, Hung SL, Lin LW, Chi LY, Ling LJ. Attachment of Periodontal Ligament Cells to Chlorhexidine-Loaded Guided Tissue Regeneration Membranes. J Periodontol 2003; 74:1652-9. [PMID: 14682663 DOI: 10.1902/jop.2003.74.11.1652] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Early exposure of a guided tissue regeneration (GTR) membrane in the oral cavity results in bacterial contamination, which may lead to failure or incomplete regeneration. Incorporation of antimicrobial agents in GTR membranes may be valuable to control membrane-associated infection during GTR therapy. The purpose of this study was to evaluate whether the incorporation of chlorhexidine into various GTR membranes improves the attachment of periodontal ligament cells in the presence of Actinobacillus actinomycetemcomitans. METHODS The possible effects of chlorhexidine on the viability of primary human periodontal ligament (PDL) cells were determined using 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyltetrazolium bromide (MTT), which measures cellular metabolic activity. An expanded polytetrafluoroethylene (ePTFE) membrane, glycolide fiber membrane, and collagen membrane were loaded with chlorhexidine and characterized. Attachment of PDL cells to the chlorhexidine-loaded membranes with or without A. actinomycetemcomitans was examined using scanning electron microscopy (SEM) analysis. RESULTS Relative cellular viability of PDL cells was reduced to approximately 50% when 15 microg/ml (0.0015%) of chlorhexidine was used. Chlorhexidine released from the coated GTR membranes inhibited the growth of A. actinomycetemcomitans. At the concentration used in this study, chlorhexidine incorporated into the GTR membranes did not interfere with the attachment of PDL cells. The inhibitory effects of A. actinomycetemcomitans on cellular attachment were reduced using chlorhexidine-loaded membranes, including ePTFE, glycolide fiber, and collagen membranes. CONCLUSIONS These results suggest that incorporation of chlorhexidine into GTR membranes is beneficial in reducing bacterial effects on cellular attachment. The future application of chlorhexidine-loaded membranes during GTR therapy may be of value.
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Affiliation(s)
- Yen-Ting Chen
- Faculty of Dentistry, National Yang-Ming University, Taipei, Taiwan
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Kurtiş B, Unsal B, Cetiner D, Gültekin E, Ozcan G, Celebi N, Ocak O. Effect of polylactide/glycolide (PLGA) membranes loaded with metronidazole on periodontal regeneration following guided tissue regeneration in dogs. J Periodontol 2002; 73:694-700. [PMID: 12146527 DOI: 10.1902/jop.2002.73.7.694] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Bioabsorbable membranes have been successfully used for guided tissue regeneration (GTR) and local delivery systems because they are biocompatible and do not require second surgery for removal. Several studies have demonstrated that metronidazole, when applied topically, produced immediate effects on microbiological and clinical parameters, most notably a reduction in probing depth and loss of attachment. The purpose of this study was to evaluate the regenerative potential of a metronidazole-loaded biodegradable (polylactide/glycolide) (PLGA) GTR membrane in dogs. METHODS Six male adult dogs with 36 created osseous defects were enrolled. Bilateral dehiscence type defects in 5 mm diameter were created at buccal aspect of the alveolar bone in maxillary premolar teeth. After full thickness flap elevation, exposed root surfaces were thoroughly planed. In the experimental sites, PLGA membranes with or without metronidazole were fitted and placed over the defects. On the control defects only root planing was performed. Gingival flaps were replaced slightly coronal to the cemento-enamel junction. Animals were sacrificed at 60 days. The histometric analysis was evaluated with the following parameters: defect height (DH), apical extension of junctional epithelium (AEJE), new cementum height (NCH), new bone height (NBH), and new gingival connective tissue height (NCTH). RESULTS Postoperative clinical healing was similar in the 3 groups. There were no statistically significant differences between the 2 experimental groups in any parameters. Statistically significant differences were observed for AEJE, NCH, NBH, and NCTH in experimental groups when compared with the controls. Statistically significantly greater NCH, NBH, and NCTH were seen in the experimental groups than the controls and control defects showed longer AEJE than the experimental defects. CONCLUSIONS These results suggest that PLGA membranes with and without metronidazole may have a beneficial effect on periodontal regeneration.
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Affiliation(s)
- Bülent Kurtiş
- Gazi University, Faculty of Dentistry, Department of Periodontology, Ankara, Turkey.
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Bezerra MM, Brito GAC, Ribeiro RA, Rocha FAC. Low-dose doxycycline prevents inflammatory bone resorption in rats. Braz J Med Biol Res 2002; 35:613-6. [PMID: 12011948 DOI: 10.1590/s0100-879x2002000500015] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Matrix metalloproteinases (MMP) are considered to be key initiators of collagen degradation, thus contributing to bone resorption in inflammatory diseases. We determined whether subantimicrobial doses of doxycycline (DX) (< or =10 mg kg-1 day-1), a known MMP inhibitor, could inhibit bone resorption in an experimental periodontitis model. Thirty male Wistar rats (180-200 g) were subjected to placement of a nylon thread ligature around the maxillary molars and sacrificed after 7 days. Alveolar bone loss (ABL) was measured macroscopically in one hemiarcade and the contralateral hemiarcade was processed for histopathologic analysis. Groups of six animals each were treated with DX (2.5, 5 or 10 mg kg-1 day-1, sc, 7 days) and compared to nontreated (NT) rats. NT rats displayed significant ABL, severe mononuclear cell influx and increase in osteoclast numbers, which were significantly reduced by 5 or 10 mg kg-1 day-1 DX. These data show that DX inhibits inflammatory bone resorption in a manner that is independent of its antimicrobial properties.
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Affiliation(s)
- M M Bezerra
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Rua Cel. Nunes de Melo 1127, 60430-270 Fortaleza, CE, Brazil
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