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Nakada H, Watanabe T, Takahashi T, Sato H, Isaji D, Sato K, Kimoto S, Mijares DQ, Zhang Y, Kawai Y. Coating Dental Implants with Synthetic Bone Mineral for Early New Bone Formation in Vivo. J HARD TISSUE BIOL 2021. [DOI: 10.2485/jhtb.30.339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Hiroshi Nakada
- Department of Removable Prosthodontics and Geriatric Oral Health, Nihon University School of Dentistry at Matsudo
| | - Takehiro Watanabe
- Department of Removable Prosthodontics and Geriatric Oral Health, Nihon University School of Dentistry at Matsudo
| | - Takahiro Takahashi
- Department of Removable Prosthodontics and Geriatric Oral Health, Nihon University School of Dentistry at Matsudo
| | - Hiroki Sato
- Department of Removable Prosthodontics and Geriatric Oral Health, Nihon University School of Dentistry at Matsudo
| | - Daisuke Isaji
- Department of Removable Prosthodontics and Geriatric Oral Health, Nihon University School of Dentistry at Matsudo
| | - Kanami Sato
- Department of Removable Prosthodontics and Geriatric Oral Health, Nihon University School of Dentistry at Matsudo
| | - Suguru Kimoto
- Department of Gerodontology and Home Care Dentistry, School of Dentistry, Aichi Gakuin University
| | - Dindo Q. Mijares
- Department of Biomaterials and Biomimetics, New York University College of Dentistry
| | - Yu Zhang
- Department of Preventive and Restorative Sciences, School of Dental Medicine, University of Pennsylvania
| | - Yasuhiko Kawai
- Department of Removable Prosthodontics and Geriatric Oral Health, Nihon University School of Dentistry at Matsudo
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Sato H, Watanabe T, Takahashi T, Isaji D, Nakada H, Kobayasshi R, Tanimoto Y, Kimoto S, Kawai Y. Effect of a Dietary Supplement on Peri-Implant Bone Strength in a Rat Model of Machined Surface Implants. J HARD TISSUE BIOL 2019. [DOI: 10.2485/jhtb.28.71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Hiroki Sato
- Nihon University Graduate School of Dentistry at Matsudo, Removable Prosthodontics
| | - Takehiro Watanabe
- Department of Removable Prosthodontics, Nihon University of Dentistry at Matsudo
| | - Takahiro Takahashi
- Department of Removable Prosthodontics, Nihon University of Dentistry at Matsudo
| | - Daisuke Isaji
- Nihon University Graduate School of Dentistry at Matsudo, Removable Prosthodontics
| | - Hiroshi Nakada
- Department of Removable Prosthodontics, Nihon University of Dentistry at Matsudo
| | - Ryouki Kobayasshi
- Department of Oral Immunology, Nihon University School of Dentistry at Matsudo
| | - Yasuhiro Tanimoto
- Department of Dental Biomaterials, Nihon University of Dentistry at Matsudo
| | - Suguru Kimoto
- Department of Removable Prosthodontics, Nihon University of Dentistry at Matsudo
| | - Yasuhiko Kawai
- Department of Removable Prosthodontics, Nihon University of Dentistry at Matsudo
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Takahashi T, Watanabe T, Nakada H, Tanimoto Y, Kimoto S, Mijares DQ, Zhang Y, Kawai Y. Effect of a dietary supplement on peri-implant bone strength in a rat model of osteoporosis. J Prosthodont Res 2016; 60:131-7. [PMID: 26787534 DOI: 10.1016/j.jpor.2015.12.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 10/26/2015] [Accepted: 12/24/2015] [Indexed: 01/15/2023]
Abstract
PURPOSE Osteoporosis contributes to impaired bone regeneration and remodeling through an imbalance of osteoblastic and osteoclastic activity, and can delay peri-implant bone formation after dental implant surgery, resulting in a prolonged treatment period. It poses several difficulties for individuals with large edentulous areas, and decreases their quality of life. Consequently, prompt postoperative placement of the final prosthesis is very important clinically. Peri-implant bone formation may be enhanced by systemic approaches, such as the use of osteoporosis supplements, to promote bone metabolism. We aimed to confirm whether intake of synthetic bone mineral (SBM), a supplement developed for osteoporosis, could effectively accelerate peri-implant bone formation in a rat model of osteoporosis. METHODS Thirty-six 7-week-old ovariectomized female Wistar rats were randomly assigned to receive a standardized diet with or without SBM (Diet with SBM group and Diet without SBM group, respectively; n=18 for both). The rats underwent implant surgery at 9 weeks of age under general anesthesia. The main outcome measures, bone mineral density (BMD) and pull-out strength of the implant from the femur, were compared at 2 and 4 weeks after implantation using the Mann-Whitney U test. RESULTS Pull-out strength and BMD in the Diet with SBM group were significantly greater than those in the Diet without SBM group at 2 and 4 weeks after implantation. CONCLUSIONS This study demonstrated that SBM could be effective in accelerating peri-implant bone formation in osteoporosis.
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Affiliation(s)
- Takahiro Takahashi
- Nihon University Graduate School of Dentistry at Matsudo, Removable Prosthodontics, Matsudo, Japan
| | - Takehiro Watanabe
- Department of Removable Prosthodontics, Nihon University of Dentistry at Matsudo, Japan.
| | - Hiroshi Nakada
- Department of Removable Prosthodontics, Nihon University of Dentistry at Matsudo, Japan
| | - Yasuhiro Tanimoto
- Department of Dental Biomaterials, Nihon University of Dentistry at Matsudo, Japan
| | - Suguru Kimoto
- Department of Removable Prosthodontics, Nihon University of Dentistry at Matsudo, Japan
| | - Dindo Q Mijares
- Department of Biomaterials & Biomimetics, New York University College of Dentistry, USA
| | - Yu Zhang
- Department of Biomaterials & Biomimetics, New York University College of Dentistry, USA
| | - Yasuhiko Kawai
- Department of Removable Prosthodontics, Nihon University of Dentistry at Matsudo, Japan
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Takahashi T, Watanabe T, Nakada H, Sato H, Tanimoto Y, Sakae T, Kimoto S, Mijares D, Zhang Y, Kawai Y. Improved Bone Micro Architecture Healing Time after Implant Surgery in an Ovariectomized Rat. J HARD TISSUE BIOL 2016; 25:257-262. [PMID: 28133434 PMCID: PMC5267561 DOI: 10.2485/jhtb.25.257] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The present animal study investigated whether oral intake of synthetic bone mineral (SBM) improves peri-implant bone formation and bone micro architecture (BMA). SBM was used as an intervention experimental diet and AIN-93M was used as a control. The SBM was prepared by mixing dicalcium phosphate dihydrate (CaHPO4·2H2O) and magnesium and zinc chlorides (MgCl2 and ZnCl2, respectively), and hydrolyzed in double-distilled water containing dissolved potassium carbonate and sodium fluoride. All rats were randomly allocated into one of two groups: a control group was fed without SBM (n = 18) or an experimental group was fed with SBM (n = 18), at seven weeks old. At 9 weeks old, all rats underwent implant surgery on their femurs under general anesthesia. The implant was inserted into the insertion socket prepared at rats' femur to a depth of 2.5 mm by using a drill at 500 rpm. Nine rats in each group were randomly selected and euthanized at 2 weeks after implantation. The remaining nine rats in each group continued their diets, and were euthanized in the same manner at 4 weeks after implantation. The femur, including the implant, was removed from the body and implant was pulled out by an Instron universal testing machine. After the implant removal, BMA was evaluated by bone surface ratio (BS/BV), bone volume fraction (BV/TV), trabecular thickness (TbTh), trabecular number (TbN), trabecular star volume (Vtr), and micro-CT images. BS/BV, BV/TV, TbTh and Vtr were significantly greater in the rats were fed with SBM than those were fed without SBM at 2 and 4 weeks after implantation (P < 0.05). The present results revealed that SBM improves the peri-implant formation and BMA, prominent with trabecular bone structure. The effect of SBM to improve secondary stability of the implant, and shortening the treatment period should be investigated in the future study.
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Affiliation(s)
- Takahiro Takahashi
- Department of Removable Prosthodontics, Nihon University Graduate School of Dentistry at Matsudo, Removable Prosthodontics, Matsudo, Japan
| | - Takehiro Watanabe
- Department of Removable Prosthodontics, Nihon University of Dentistry at Matsudo, Matsudo, Japan
| | - Hiroshi Nakada
- Department of Removable Prosthodontics, Nihon University of Dentistry at Matsudo, Matsudo, Japan
| | - Hiroki Sato
- Department of Removable Prosthodontics, Nihon University Graduate School of Dentistry at Matsudo, Removable Prosthodontics, Matsudo, Japan
| | - Yasuhiro Tanimoto
- Department of Dental Biomaterials, Nihon University of Dentistry at Matsudo, Matsudo, Japan
| | - Toshiro Sakae
- Department of Histology, Nihon University of Dentistry at Matsudo, Matsudo, Japan
| | - Suguru Kimoto
- Department of Removable Prosthodontics, Nihon University of Dentistry at Matsudo, Matsudo, Japan
| | - Dindo Mijares
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York, USA
| | - Yu Zhang
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York, USA
| | - Yasuhiko Kawai
- Department of Removable Prosthodontics, Nihon University of Dentistry at Matsudo, Matsudo, Japan
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Watanabe T, Nakada H, Takahashi T, Fujita K, Tanimoto Y, Sakae T, Kimoto S, Kawai Y. Potential for acceleration of bone formation after implant surgery by using a dietary supplement: an animal study. J Oral Rehabil 2015; 42:447-53. [PMID: 25572652 DOI: 10.1111/joor.12270] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2014] [Indexed: 10/24/2022]
Abstract
Dental implant treatment is an effective modality to restore lost aesthetic and masticatory functions. However, healing after implant surgery takes at least 3-6 months. This prolonged healing period poses several difficulties for individuals with a large edentulous area and decreases their quality of life. Consequently, shortening the healing period and accelerating final prosthesis placement after surgery is very clinically important. Peri-implant bone formation may be enhanced by systemic approaches, such as the use of osteoporosis supplements, to promote bone metabolism. To confirm whether intake of a supplement developed for osteoporosis, synthetic bone mineral (SBM), was effective in accelerating peri-implant bone formation as part of the healing process after implantation. Twenty-four 5-week-old female Wistar rats were randomly assigned to receive a standardised diet without (control group, n = 12) or with SBM (n = 12). The rats had implant surgery at 8 weeks of age under general anaesthesia. The main outcome measures were bone mineral density (BMD) and pull-out strength in the implant and femur, which were compared between the groups at 2 and 4 weeks after implantation using the Mann-Whitney U test. BMD was significantly greater in the SBM group at 2 and 4 weeks after implantation compared to the control group. Pull-out strength was significantly greater in the SBM groups at 2 and 4 weeks after implantation compared to the control group. This study demonstrated that SBM could be effective in accelerating peri-implant bone formation during the healing period after implantation.
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Affiliation(s)
- T Watanabe
- Department of Removable Prosthodontics, Nihon University of Dentistry at Matsudo, Matsudo, Japan
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Mijares D, Kulkarni A, Lewis K, Yao F, Xi Q, Tannous S, Dias R, LeGeros RZ. Oral bone loss induced by mineral deficiency in a rat model: Effect of a synthetic bone mineral (SBM) preparation. Arch Oral Biol 2012; 57:1264-73. [DOI: 10.1016/j.archoralbio.2012.02.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Revised: 02/10/2012] [Accepted: 02/23/2012] [Indexed: 11/16/2022]
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Gonzales C, Hotokezaka H, Karadeniz EI, Miyazaki T, Kobayashi E, Darendeliler MA, Yoshida N. Effects of fluoride intake on orthodontic tooth movement and orthodontically induced root resorption. Am J Orthod Dentofacial Orthop 2011; 139:196-205. [DOI: 10.1016/j.ajodo.2009.05.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2008] [Revised: 05/01/2009] [Accepted: 05/01/2009] [Indexed: 10/18/2022]
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Rex T, Kharbanda OP, Petocz P, Darendeliler MA. Physical properties of root cementum: Part 6. A comparative quantitative analysis of the mineral composition of human premolar cementum after the application of orthodontic forces. Am J Orthod Dentofacial Orthop 2006; 129:358-67. [PMID: 16527631 DOI: 10.1016/j.ajodo.2005.12.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2004] [Revised: 11/08/2004] [Accepted: 11/08/2004] [Indexed: 11/23/2022]
Abstract
INTRODUCTION The aim of this study was to examine quantitatively with electron probe microanalysis (EPMA) the calcium (Ca), phosphorus (P), and fluoride (F) concentrations in human first premolar cementum after the application of light and heavy orthodontic forces. METHODS Thirty-six maxillary and mandibular first premolars (18 experimental, 18 control) were extracted from 16 subjects (10 male, 6 female; mean age, 13.9 years; range, 11.7-16.1 years) who were randomly assigned to the light-force or the heavy-force group. In the light-force group, 25 g of buccally directed force was applied to the experimental premolar; in the heavy-force group, 225 g of buccally directed force was applied to the experimental premolar. The contralateral premolar served as the control. The experimental and control premolars were extracted 28 or 29 days after initial force application and prepared for EPMA. The Ca, P, and F concentrations were measured on the buccal and lingual surfaces at the midpoint of the cervical, middle, and apical thirds of the root from the outer to the middle to the inner third of the cementum. RESULTS Little change was found in the mineral composition of cementum after the application of light forces; however, there was a trend toward an increase in the mineral composition (Ca, P, and F) of cementum at various areas of periodontal ligament compression. The application of heavy forces caused a significant (P = .000) decrease in the Ca concentration of cementum at certain areas of periodontal ligament tension. The application of both light and heavy orthodontic forces did not appear to influence the F concentrations in cementum. CONCLUSIONS Heavy orthodontic forces cause alterations in the mineral content of cementum; light forces cause little change.
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Affiliation(s)
- Teriko Rex
- Faculty of Dentistry, Sydney Dental Hospital, University of Sydney, Sydney, Australia
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Limeback H. A re-examination of the pre-eruptive and post-eruptive mechanism of the anti-caries effects of fluoride: is there any anti-caries benefit from swallowing fluoride? Community Dent Oral Epidemiol 1999; 27:62-71. [PMID: 10086928 DOI: 10.1111/j.1600-0528.1999.tb01993.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The belief that fluoridated water reduces caries incidence by half stems from years of fluoridation studies where the caries rates of people in various fluoridated and non-fluoridated communities were compared. By their nature, the water fluoridation trials were not able to distinguish between the topical effects of the fluoride in the water and the systemic effects of the fluoride that is inevitably swallowed and incorporated into developing teeth. Some attempts have been made to estimate the contribution of systemic fluoride to the control of dental caries but researchers are discovering that the topical effects of fluoride are likely to mask any benefits that ingesting fluoride might have. In this updated review of the pre-eruptive vs. post-eruptive benefits of fluoride in the prevention of dental caries, a re-examination of the literature, which is often cited to support the notion that swallowing fluoride, either in water or in pill form, was done in recognition of the mounting evidence for the topical mechanism as being the primary mechanism for the prevention of dental caries. Maximum benefits from exposing newly erupted teeth to topical fluoride in the oral cavity may have been seriously under-estimated. This has obvious implications for the use of systemic fluorides to prevent dental caries and forces everyone working in the field to examine more closely the risks and benefits of fluoride in all its delivery forms.
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Affiliation(s)
- H Limeback
- Faculty of Dentistry, University of Toronto, Ontario, Canada.
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