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Ren J, Fok MR, Zhang Y, Han B, Lin Y. The role of non-steroidal anti-inflammatory drugs as adjuncts to periodontal treatment and in periodontal regeneration. J Transl Med 2023; 21:149. [PMID: 36829232 PMCID: PMC9960225 DOI: 10.1186/s12967-023-03990-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 02/14/2023] [Indexed: 02/26/2023] Open
Abstract
Periodontitis is the sixth most prevalent chronic disease globally and places significant burdens on societies and economies worldwide. Behavioral modification, risk factor control, coupled with cause-related therapy have been the "gold standard" treatment for managing periodontitis. Given that host inflammatory and immunological responses play critical roles in the pathogenesis of periodontitis and impact treatment responses, several adjunctive strategies aimed at modulating host responses and improving the results of periodontal therapy and maintenance have been proposed. Of the many pharmacological host modulators, we focused on non-steroidal anti-inflammatory drugs (NSAIDs), due to their long history and extensive use in relieving inflammation and pain and reducing platelet aggregation. NSAIDs have been routinely indicated for treating rheumatic fever and osteoarthritis and utilized for the prevention of cardiovascular events. Although several efforts have been made to incorporate NSAIDs into the treatment of periodontitis, their effects on periodontal health remain poorly characterized, and concerns over the risk-benefit ratio were also raised. Moreover, there is emerging evidence highlighting the potential of NSAIDs, especially aspirin, for use in periodontal regeneration. This review summarizes and discusses the use of NSAIDs in various aspects of periodontal therapy and regeneration, demonstrating that the benefits of NSAIDs as adjuncts to conventional periodontal therapy remain controversial. More recent evidence suggests a promising role for NSAIDs in periodontal tissue engineering and regeneration.
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Affiliation(s)
- Jianhan Ren
- grid.194645.b0000000121742757Division of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, the University of Hong Kong, Hong Kong SAR, China
| | - Melissa Rachel Fok
- grid.194645.b0000000121742757Division of Periodontology and Implant Dentistry, Faculty of Dentistry, the University of Hong Kong, Hong Kong SAR, China
| | - Yunfan Zhang
- grid.11135.370000 0001 2256 9319Department of Orthodontics, Cranial-Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, China
| | - Bing Han
- Department of Orthodontics, Cranial-Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, China.
| | - Yifan Lin
- Division of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, the University of Hong Kong, Hong Kong SAR, China.
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Integration of Dental Implants in Conjunction with EDTA-Conditioned Dentin Grafts: An Experimental Study. Dent J (Basel) 2021; 9:dj9060063. [PMID: 34206029 PMCID: PMC8228615 DOI: 10.3390/dj9060063] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/18/2021] [Accepted: 05/28/2021] [Indexed: 11/17/2022] Open
Abstract
This study was undertaken to investigate the integration of titanium micro-implants installed in conjunction with previously dentin-grafted areas and to study the morphological appearance, mineral content, and healing pattern of xenogenic EDTA-conditioned dentin blocks and granules grafted to cavities in the tibial bone of rabbits. Demineralized and non-demineralized dentin blocks and granules from human premolars were implanted into cavities prepared on the lateral aspects of the tibias of rabbits. After a healing period of six months, micro-implants were installed at each surgical site. Histological examinations were carried out after 24 weeks. Characterization of the EDTA-conditioned dentin blocks was performed by means of light microscopy, dental X-rays, scanning electron microscopy, and energy dispersive X-ray analysis (EDX). No implants were found to be integrated in direct contact with the dentin particles or blocks. On the EDTA-conditioned dentin surface, the organic marker elements C and N dominated, as revealed by EDX. The hydroxyapatite constituents Ca and P were almost absent on the dentin surface. No statistically significant difference was observed between the EDTA-conditioned and non-demineralized dentin, as revealed by BIC and BA. The bone-inductive capacity of the dentin material seemed limited, although demineralization by means of EDTA indicated higher BIC and BA values in conjunction with the installed implants in the area. A 12 h EDTA treatment did not fully decalcify the grafts, as revealed by X-ray analysis.
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Carvalho ÉBS, Veronesi GF, Manfredi GGP, Damante CA, Sant'Ana ACP, Greghi SLA, Zangrando MSR, Consolaro A, Rezende MLR. Bone demineralization improves onlay graft consolidation: A histological study in rat calvaria. J Periodontol 2020; 92:1-10. [PMID: 32997353 DOI: 10.1002/jper.20-0390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 08/28/2020] [Accepted: 08/31/2020] [Indexed: 11/08/2022]
Abstract
BACKGROUND Previous data suggest that bone demineralization may promote bone graft consolidation as well as proliferation and differentiation of pre-osteoblasts, but the biological mechanisms involved in this process need to be clarified. This study investigated the effects of bone demineralization with citric acid (CA) and tetracycline (TCN) on the repair of onlay bone grafts. METHODS Onlay bone grafts were performed on the calvaria of 126 Wistar rats. The contacting surfaces between bone graft and receptor bone bed were demineralized for 15, 30, and 60 seconds with TCN (50 mg/mL), or 10% CA, (pH 1), constituting the following test groups (n = 18): TCN15, TCN30, TCN60, CA15, CA30, and CA60. Control grafts (C) were performed without demineralization (n = 18). After 7, 30, and 60 days, biopsies were obtained for quantitative and qualitative histological analysis (a = 6). RESULTS Demineralization accelerated the bone repair early from 7 days of healing. Higher percentage area of newly formed bone was observed in CA15 and TCN60 groups when compared to C in all evaluation periods (P = 0.02). At 30 days, C specimens had lower percentage of consolidated surfaces than TCN60, TCN30 and CA15 (P = 0.0015). At 60 days, CA15, CA60, and TCN60 presented bone surfaces almost completely filled by newly formed bone, against about 75% in C specimens (P = 0.0015). CONCLUSIONS Both CA and TCN were effective in accelerating osteogenesis at the interface between bone grafts and receptor bone beds, especially when applied for 15 seconds and 60 seconds, respectively.
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Affiliation(s)
- Érika B S Carvalho
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Giovana F Veronesi
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Gustavo G P Manfredi
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Carla A Damante
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Adriana C P Sant'Ana
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Sebastião L A Greghi
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Mariana S R Zangrando
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Alberto Consolaro
- Department of Stomatology, Division of Pathology, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Maria L R Rezende
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
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Rojas-Paulús JE, Manfredi GGP, Salmeron S, Consolaro A, Sant'Ana ACP, Zangrando MSR, Damante CA, Greghi SLA, Rezende MLR. Citric acid, but not tetracycline, improves the microscopic pattern of healing of particulate autogenous bone grafts in critical-size defects. J Periodontol 2020; 92:678-688. [PMID: 32902871 DOI: 10.1002/jper.20-0363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/24/2020] [Accepted: 08/14/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND Bone demineralization has shown to be advantageous in autogenous onlay bone grafts and in pre-osteoblasts cultures, but such procedure has never been evaluated in particulate bone grafts. This study aimed to investigate the role of two demineralizing agents in the repair of the 8-mm critical-size defects in rats' calvaria. METHODS Eighty adult male Wistar rats were randomly assigned to one of eight groups as follows: particulate autogenous bone demineralized with citric acid for 15 seconds (CA15), 30 seconds (CA30), or 60 seconds (CA60); particulate autogenous bone demineralized with tetracycline hydrochloride for 15 seconds (TCN15), 30 seconds (TCN30), or 60 seconds (TCN60); blood clot (NC), and non-demineralized autogenous bone (PC). The calvariae were harvested at 30 and 60 postoperative days (n = 5) for blinded histological and histometric analysis of the percentage area of newly formed bone within the defects. RESULTS In the NC and TCN groups, bone formation was limited to the margins of the defects at 30 postoperative days, whereas complete closure was present in all the specimens from CA15 group. Both at 30 and 60 postoperative days, histomorphometry showed significant higher area of newly formed bone in specimens demineralized with CA than in those demineralized with TCN or non-demineralized (P < 0.05). TCN appeared to impair bone neoformation, as its use produced similar or inferior results compared to blood clot. CONCLUSIONS Demineralization of particulate bone grafts with CA during 15s enhanced the regeneration of critical-size defects and may be a promising adjuvant in regenerative procedures. TCN seems to be improper for this purpose.
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Affiliation(s)
- Jefrey E Rojas-Paulús
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Gustavo G P Manfredi
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Samira Salmeron
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Alberto Consolaro
- Department of Stomatology, Division of Pathology, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Adriana C P Sant'Ana
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Mariana S R Zangrando
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Carla A Damante
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Sebastião L A Greghi
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Maria L R Rezende
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
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Which substances loaded onto collagen scaffolds influence oral tissue regeneration?-an overview of the last 15 years. Clin Oral Investig 2020; 24:3363-3394. [PMID: 32827278 DOI: 10.1007/s00784-020-03520-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 08/10/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND Collagen scaffolds are widely used for guided bone or tissue regeneration. Aiming to enhance their regenerative properties, studies have loaded various substances onto these scaffolds. This review aims to provide an overview of existing literature which conducted in vitro, in vivo, and clinical testing of drug-loaded collagen scaffolds and analyze their outcome of promoting oral regeneration. MATERIALS AND METHODS PubMed, Scopus, and Ovid Medline® were systematically searched for publications from 2005 to 2019. Journal articles assessing the effect of substances on oral hard or soft tissue regeneration, while using collagen carriers, were screened and qualitatively analyzed. Studies were grouped according to their used substance type-biological medical products, pharmaceuticals, and tissue-, cell-, and matrix-derived products. RESULTS A total of 77 publications, applying 36 different substances, were included. Collagen scaffolds were demonstrating favorable adsorption behavior and release kinetics which could even be modified. BMP-2 was investigated most frequently, showing positive effects on oral tissue regeneration. BMP-9 showed comparable results at lower concentrations. Also, FGF2 enhanced bone and periodontal healing. Antibiotics improved the scaffold's anti-microbial activity and reduced the penetrability for bacteria. CONCLUSION Growth factors showed promising results for oral tissue regeneration, while other substances were investigated less frequently. Found effects of investigated substances as well as adsorption and release properties of collagen scaffolds should be considered for further investigation. CLINICAL RELEVANCE Collagen scaffolds are reliable carriers for any of the applied substances. BMP-2, BMP-9, and FGF2 showed enhanced bone and periodontal healing. Antibiotics improved anti-microbial properties of the scaffolds.
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Andreotti Damante C, Cardoso MV, Hage Karam PSB, Haiter AC, Sant'ana ACP, Greghi SLA, Zangrando MSR, De Rezende MLR, Oliveira RC. Evaluation of Regular Market Ethyl Cyanoacrylate Cytotoxicity for Human Gingival Fibroblasts and Osteoblasts. Surg Infect (Larchmt) 2019; 21:29-34. [PMID: 31397637 DOI: 10.1089/sur.2019.141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Background: The aim of this study was to evaluate the cytotoxicity of cyanoacrylate adhesives in an indirect contact assay in human gingival fibroblast (FGH) and oral osteoblasts (GO) lineages. Methods: Cover glasses were glued with adhesives following the ISO 10993-2012 protocol. The groups were: C (control with cells and regular Dulbecco Modified Eagle Medium; LC (liquid ethyl-cyanoacrylate); GC (ethyl-cyanoacrylate gel); EGC (easy gel [ethyl-cyanoacrylate]); and D (Dermabond [octyl-cyanoacrylate]). Each cell linage was plated in the sixth passage using 104 cells. Cell viability was measured by the MTT test at 24, 48, 72, and 96 hours. Data were analyzed by two-way analysis of variance complemented by the Tukey test, with p < 0.05 being significant. Results: Dermabond stimulated osteoblast viability at 72 h (p < 0.05). All other groups were similar to the control cells (p > 0.05). For the fibroblasts, there was no difference in the groups, including the control except that EGC was cytotoxic for these cells (p < 0.05). Conclusions: Ethyl-cyanoacrylate gel and liquid forms available on the general chemical market were not cytotoxic for oral osteoblasts and fibroblasts in most cases. However, the easy gel form was cytotoxic for fibroblasts.
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Affiliation(s)
- Carla Andreotti Damante
- Department of Periodontology, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - Matheus Völz Cardoso
- Department of Periodontology, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | | | - Ana Carolina Haiter
- Department of Periodontology, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
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Manfredi GGDP, Tokuhara CK, Salmeron S, Carvalho ÉBS, Liboa‐Filho PN, Damante CA, Sant'Ana ACP, Zangrando MSR, Greghi SLA, Rezende MLR. Bone demineralization promotes superior spread of preosteoblast in culture. Microsc Res Tech 2019; 82:1004-1011. [DOI: 10.1002/jemt.23247] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 01/23/2019] [Accepted: 02/12/2019] [Indexed: 11/08/2022]
Affiliation(s)
| | - Cíntia Kazuko Tokuhara
- Department of Biological Sciences, Bauru School of DentistryUniversity of São Paulo Bauru São Paulo Brazil
| | - Samira Salmeron
- Department of Prosthodontics and Periodontics, Piracicaba Dental SchoolUniversity of Campinas Piracicaba São Paulo Brazil
| | - Érika Beatriz Spada Carvalho
- Department of Prosthodontics and Periodontics, Bauru School of DentistryUniversity of São Paulo Bauru São Paulo Brazil
| | | | - Carla Andreotti Damante
- Department of Prosthodontics and Periodontics, Bauru School of DentistryUniversity of São Paulo Bauru São Paulo Brazil
| | | | | | - Sebastião Luis Aguiar Greghi
- Department of Prosthodontics and Periodontics, Bauru School of DentistryUniversity of São Paulo Bauru São Paulo Brazil
| | - Maria Lúcia Rubo Rezende
- Department of Prosthodontics and Periodontics, Bauru School of DentistryUniversity of São Paulo Bauru São Paulo Brazil
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Song WK, Kang JH, Cha JK, Lee JS, Paik JW, Jung UW, Kim BH, Choi SH. Biomimetic characteristics of mussel adhesive protein-loaded collagen membrane in guided bone regeneration of rabbit calvarial defects. J Periodontal Implant Sci 2018; 48:305-316. [PMID: 30405938 PMCID: PMC6207793 DOI: 10.5051/jpis.2018.48.5.305] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 10/11/2018] [Indexed: 11/08/2022] Open
Abstract
Purpose The aim of the present study was to evaluate the biocompatibility and barrier function of mussel adhesive protein (MAP)-loaded collagen membranes in guided bone regeneration (GBR). Methods Eight male New Zealand white rabbits were used. Four circular defects (diameter: 8 mm) were created in the calvarium of each animal. The defects were randomly assigned to 1) a negative control group, 2) a cyanoacrylate (CA)-loaded collagen membrane group (the CA group), 3) a MAP-loaded collagen membrane group (the MAP group), and 4) a group that received a polycaprolactone block with MAP-loaded collagen membrane (the MAP-PCL group). Specimens were harvested at 2 weeks (n=4) and 8 weeks (n=4) postoperatively for observational histology and histometric analysis. Results In the histologic analysis, MAP was completely absorbed without any byproducts. In contrast, some of the CA adhesive remained, showing an inflammatory reaction, at 8 weeks. In the MAP-PCL group, the MAP-loaded collagen membranes served as a barrier membrane despite their fast degradation in GBR. No significant difference was found in the amount of new bone between the MAP-PCL and MAP groups (1.82±0.86 mm2 and 2.60±0.65 mm2, respectively). Conclusions The MAP-loaded collagen membrane functioned efficiently in this rabbit calvarial GBR model, with excellent biocompatibility. Further research is needed to assess clinical applications in defect types that are more challenging for GBR than those used in the current model.
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Affiliation(s)
- Woong-Kyu Song
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Joo-Hyun Kang
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Jae-Kook Cha
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Jung-Seok Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Jeong-Won Paik
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Byung-Hoon Kim
- Department of Dental Materials, Chosun University School of Dentistry, Gwangju, Korea
| | - Seong-Ho Choi
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
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De Santis E, Silva ER, Martins ENC, Favero R, Botticelli D, Xavier SP. Healing at the Interface Between Autologous Block Bone Grafts and Recipient Sites Using n-Butyl-2-Cyanoacrylate Adhesive as Fixation: Histomorphometric Study in Rabbits. J ORAL IMPLANTOL 2017; 43:447-455. [DOI: 10.1563/aaid-joi-d-17-00108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of the present split-mouth (split-plot) study was to describe the sequential healing in the interface between autologous bone grafts and recipient parent bone, fixed using an n-butyl-2-cyanoacrylate adhesive with or without an additional titanium fixation screw. Bone grafts were collected from the calvaria and fixed to the lateral aspect of the mandible in 24 rabbits. The cortical layers of the recipient sites were perforated, and the grafts were randomly fixed using an n-butyl-2-cyanocrylate adhesive, either alone or in conjunction with a 1.5 mm × 6.0 mm titanium fixation screw. The animals were sacrificed after 3, 7, 20, and 40 days, and histomorphometric evaluations of the interface between graft and parent bone were performed. Only 2 of 6 grafts in each group were partially incorporated to the parent bone after 40 days of healing. The remaining grafts were separated from the parent bone by adhesive and connective tissue. It was concluded that the use of n-butyl-2-cyanoacrylate as fixation of an autologous bone graft to the lateral aspect of the mandible was able to maintain the fixation over time but did not incorporate the graft to the recipient sites. Use of fixation screws did not improve the healing.
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Affiliation(s)
| | - Erick Ricardo Silva
- Dept. CTBMF e Periodontia FORP-USP - Faculty of Ribeirão Preto, São Paulo, Brazil
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de Rezende MLR, Coesta PTG, de Oliveira RC, Salmeron S, Sant'Ana ACP, Damante CA, Greghi SLA, Consolaro A. Bone demineralization with citric acid enhances adhesion and spreading of preosteoblasts. J Periodontol 2016; 86:146-54. [PMID: 25272980 DOI: 10.1902/jop.2014.130657] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Previous studies have demonstrated that bone demineralization can improve consolidation in bone grafts. The biologic mechanisms underlying this phenomenon remain unclear. METHODS Twelve adult male guinea pigs were used in this experiment. Forty-five bone samples removed from the calvaria of nine animals were divided in groups (n = 9) according to the time of demineralization with citric acid (50%, pH 1): 15, 30, 90, and 180 seconds and non-demineralized samples (control). Preosteoblasts (MC3T3-E1) were cultured on the bone samples for 24, 48, and 72 hours (n = 3). Fifteen samples removed from the remaining three animals were analyzed by scanning electron microscopy/energy dispersive spectrometry (SEM/EDS) after demineralization (n = 3). RESULTS The number of preosteoblasts increased significantly with time in all groups. The bone surface area covered by these cells increased with time, except in the control group. Intragroup differences occurred between 24 and 72 hours (P < 0.05). Samples demineralized for 30 seconds showed greater area covered by preosteoblast cells than for the other times of demineralization in all periods of cell culture (P < 0.05) without a statistically significant difference compared with 15 seconds. SEM/EDS showed diminished content of calcium (Ca) after 15 seconds of demineralization, but the Ca content increased after 180 seconds of demineralization (P < 0.05). The phosphorus (P) amount increased significantly only after 30 seconds of demineralization (P < 0.5). The sulfur (S) content was increased in demineralized samples in relation to non-demineralized ones, reaching the highest level after 90 seconds, when the difference became significant in relation to all the other times of demineralization (P < 0.05). Magnesium (Mg) content did not differ significantly between demineralized and non-demineralized samples. CONCLUSIONS Bone surfaces demineralized for 30 seconds increased the spreading of preosteoblasts as well as the surface area covered by these cells. Bone demineralization deserves to be studied in periodontal and maxillofacial regenerative procedures.
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Affiliation(s)
- Maria Lúcia R de Rezende
- Department of Prosthodontics, Division of Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
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11
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Damante CA, Ducati P, Ferreira R, Salmeron S, Zangrando MSR, de Rezende MLR, Sant’Ana ACP, Greghi SLA, Magalhães AC. In vitro evaluation of adhesion/proliferation of human gingival fibroblasts on demineralized root surfaces by toluidine blue O in antimicrobial photodynamic therapy. Photodiagnosis Photodyn Ther 2016; 13:303-307. [DOI: 10.1016/j.pdpdt.2015.08.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 08/03/2015] [Accepted: 08/24/2015] [Indexed: 01/19/2023]
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12
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Cohen DJ, Cheng A, Kahn A, Aviram M, Whitehead AJ, Hyzy SL, Clohessy RM, Boyan BD, Schwartz Z. Novel Osteogenic Ti-6Al-4V Device For Restoration Of Dental Function In Patients With Large Bone Deficiencies: Design, Development And Implementation. Sci Rep 2016; 6:20493. [PMID: 26854193 PMCID: PMC4745084 DOI: 10.1038/srep20493] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 01/05/2016] [Indexed: 12/18/2022] Open
Abstract
Custom devices supporting bone regeneration and implant placement are needed for edentulous patients with large mandibular deficiencies where endosteal implantation is not possible. We developed a novel subperiosteal titanium-aluminum-vanadium bone onlay device produced by additive manufacturing (AM) and post-fabrication osteogenic micro-/nano-scale surface texture modification. Human osteoblasts produced osteogenic and angiogenic factors when grown on laser-sintered nano-/micro-textured surfaces compared to smooth surfaces. Surface-processed constructs caused higher bone-to-implant contact, vertical bone growth into disk pores (microCT and histomorphometry), and mechanical pull-out force at 5 and 10 w on rat calvaria compared to non surface-modified constructs, even when pre-treating the bone to stimulate osteogenesis. Surface-modified wrap-implants placed around rabbit tibias osseointegrated by 6 w. Finally, patient-specific constructs designed to support dental implants produced via AM and surface-processing were implanted on edentulous mandibular bone. 3 and 8 month post-operative images showed new bone formation and osseointegration of the device and indicated stability of the dental implants.
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Affiliation(s)
- D. J. Cohen
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, U.S.A
| | - A. Cheng
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, U.S.A
- Department of Biomedical Engineering, Peking University, Beijing, China
| | - A. Kahn
- Department of Oral and Maxillofacial Surgery, Tel Aviv University, Tel Aviv, Israel
| | - M. Aviram
- Tipul Behiuch Private Clinic, Tel Aviv, Israel
| | - A. J. Whitehead
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, U.S.A
| | - S. L. Hyzy
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, U.S.A
| | - R. M. Clohessy
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, U.S.A
| | - B. D. Boyan
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, U.S.A
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, U.S.A
| | - Z. Schwartz
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, U.S.A
- Department of Periodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, U.S.A
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Rezende MLRD, Cunha PDO, Damante CA, Santana ACP, Greghi SLA, Zangrando MSR. Cyanoacrylate Adhesive as an Alternative Tool for Membrane Fixation in Guided Tissue Regeneration. J Contemp Dent Pract 2015; 16:512-518. [PMID: 26323456 DOI: 10.5005/jp-journals-10024-1714] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
AIM To report a well succeeded use of cyanoacrylate adhesive for fixating a resorbable membrane during a guided tissue regeneration procedure (GTR). BACKGROUND The immobilization of membranes in GTR is essential for establishing proper environment for cell differentiation and tissue regeneration. However, some membranes are very difficult to be kept in position by sutures and its fixation by mini screws or pins may be time consuming and expensive. CASE DESCRIPTION A 47-year-old woman presenting a vertical bone defect at the palatal aspect of the left central incisor was treated by GTR using particulate autogenous bone graft associated to a collagen membrane. The membrane was glued to the bone surrounding the defect and to the tooth surface with cyanoacrylate adhesive. The postoperative period was uneventful and 4 years later, excellent results in terms of radiographic filling of the defect and reduction of the probing depth were seen. For illustrative purposes, histological findings obtained during a previous experiment in calvaria of guinea pigs is shown, characterizing a foreign body granuloma and proving that the cyanoacrylate adhesive is a safe tool in GTR. CONCLUSION The use of a membrane glued with cyanoacrylate to immobilize membranes in GTR is viable and safe from both technical and biological standpoints and may be advantageous for clinical and research purposes. CLINICAL SIGNIFICANCE The alternative method for membrane fixation shown in this case report can contribute to simplify the technique in GTR procedures.
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Affiliation(s)
- Maria Lúcia Rubo de Rezende
- Department of Prosthodontics, Division of Periodontics, Bauru School of Dentistry, University of Sao Paulo, Bauru, Alameda Octavio Pinheiro Brisolla, 9-75/Vila Universitaria, Bauru, SP Zip Code: 17012-901, Brazil, e-mail:
| | - Paula de Oliveira Cunha
- Department of Prosthodontics, Division of Periodontics, Bauru School of Dentistry, University of Sao Paulo, Bauru, SP, Brazil
| | - Carla Andreotti Damante
- Department of Prosthodontics, Division of Periodontics, Bauru School of Dentistry, University of Sao Paulo, Bauru, SP, Brazil
| | - Adriana C P Santana
- Department of Prosthodontics, Division of Periodontics, Bauru School of Dentistry, University of Sao Paulo, Bauru, SP, Brazil
| | - Sebastião L A Greghi
- Department of Prosthodontics, Division of Periodontics, Bauru School of Dentistry, University of Sao Paulo, Bauru, SP, Brazil
| | - Mariana S R Zangrando
- Department of Prosthodontics, Division of Periodontics, Bauru School of Dentistry, University of Sao Paulo, Bauru, SP, Brazil
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14
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Lee J, Lee EY, Park EJ, Kim ES. An alternative treatment option for a bony defect from large odontoma using recycled demineralization at chairside. J Korean Assoc Oral Maxillofac Surg 2015; 41:109-15. [PMID: 25922824 PMCID: PMC4411726 DOI: 10.5125/jkaoms.2015.41.2.109] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Revised: 02/13/2015] [Accepted: 02/23/2015] [Indexed: 11/21/2022] Open
Abstract
Odontoma is the most common odontogenic benign tumor, and the treatment of choice is generally surgical removal. After excision, bone grafts may be necessary depending on the need for further treatment, or the size and location of the odontoma. Although the osteogenic capacity of a demineralized tooth was verified as early as 1967 by Urist and many other investigators, the cumbersome procedure, including a long demineralization time, may be less than comfortable for clinicians. A modified ultrasonic technology, with periodic negative pressure and temperature control, facilitated rapid and aseptic preparation of demineralized teeth for bone grafts. This approach reduces the demineralization time dramatically (≤80 minutes), so that the graft material can be prepared chairside on the same day as the extraction. The purpose of this article is to describe two cases of large compound odonotomas used as graft material prepared chairside for enucleation-induced bony defects. These two clinical cases showed favorable wound healing without complications, and good bony support for future dental implants or orthodontic treatment. Finally, this report will suggest the possibility of recycling the benign pathologic hard tissue as an alternative treatment option for conventional bone grafts in clinics.
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Affiliation(s)
- JuHyon Lee
- Department of Oral and Maxillofacial Surgery, Dankook University Jukjeon Dental Hospital, Yongin, Korea
| | - Eun-Young Lee
- Department of Oral and Maxillofacial Surgery, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Eun-Jin Park
- Department of Prosthodontics, Ewha Womans University School of Medicine, Seoul, Korea
| | - Eun-Suk Kim
- Department of Oral and Maxillofacial Surgery, Dankook University Jukjeon Dental Hospital, Yongin, Korea
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15
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Kim ES. Autogenous fresh demineralized tooth graft prepared at chairside for dental implant. Maxillofac Plast Reconstr Surg 2015; 37:8. [PMID: 25705613 PMCID: PMC4331600 DOI: 10.1186/s40902-015-0009-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Accepted: 02/05/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND This study aimed to evaluate the clinical usefulness of autogenous fresh demineralized tooth (auto-FDT) graft prepared at the chairside for alveolar bone grafting during dental implant surgery. METHODS In total, 38 patients requiring both tooth extraction (for endodontic or periodontal reasons or third molar extraction) and alveolar bone regeneration for dental implant placement were included. Within 2 h after clean extraction, the teeth were prepared at the chairside to serve as bone graft material. In the same sitting, blocks or chips of this graft material were used to reconstruct defects at the osteotomy site simultaneously with or before implant placement. Twelve months after prosthesis fabrication and placement, the clinical findings and implant success rates were evaluated. Histological studies were randomly conducted for selected cases. RESULTS Clinical evaluation showed favorable wound healing with minimal complications and good bone support for the implants. No implant was lost after 12 months of function following prosthetic rehabilitation. Histological examination revealed new bone formation induced by the graft material. CONCLUSIONS Chairside preparation of autogenous fresh demineralized teeth after extraction can be a useful alternative to the use of autogenous bone or other graft materials for the immediate reconstruction of alveolar bone defects to facilitate subsequent implant placement.
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Affiliation(s)
- Eun-Seok Kim
- College of Dentistry, Dankook University, 126 Jukjoen-Dong Suji-Gu, Yongin-Si Gyeonggi-Do, 448 Korea
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