1
|
Ideno H, Komatsu K, Nakashima K, Nifuji A. Tooth transplantation and replantation: Biological insights towards therapeutic improvements. Genesis 2022; 60:e23496. [PMID: 35916605 DOI: 10.1002/dvg.23496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 06/10/2022] [Accepted: 06/18/2022] [Indexed: 11/06/2022]
Abstract
Transplantation and replantation of teeth are effective therapeutic approaches for tooth repositioning and avulsion, respectively. Transplantation involves transplanting an extracted tooth from the original site into another site, regenerating tissue including the periodontal ligament (PDL) and alveolar bone, around the transplanted tooth. Replantation places the avulsed tooth back to its original site, regenerating functional periodontal tissue. In clinical settings, transplantation and replantation result in favorable outcomes with regenerated PDL tissue in many cases. However, they often result in poor outcomes with two major complications: tooth ankylosis and root resorption. In tooth ankylosis, the root surface and alveolar bone are fused, reducing the PDL tissue between them. The root is subjected to remodeling processes and is partially replaced by bone. In severe cases, the resorbed root is completely replaced by bone tissue, which is called as "replacement resorption." Resorption is sometimes accompanied by infection-mediated inflammation. The molecular mechanisms of ankylosis and root resorption remain unclear, although some signaling mechanisms have been proposed. In this mini-review, we summarized the biological basis of repair mechanisms of tissues in transplantation and replantation and the pathogenesis of their healing failure. We also discussed possible therapeutic interventions to improve treatment success rates.
Collapse
Affiliation(s)
- Hisashi Ideno
- Department of Pharmacology, School of Dental Medicine Tsurumi University, Yokohama, Japan
| | - Koichiro Komatsu
- Department of Pharmacology, School of Dental Medicine Tsurumi University, Yokohama, Japan
| | - Kazuhisa Nakashima
- Department of Pharmacology, School of Dental Medicine Tsurumi University, Yokohama, Japan
| | - Akira Nifuji
- Department of Pharmacology, School of Dental Medicine Tsurumi University, Yokohama, Japan
| |
Collapse
|
2
|
Komatsu K, Ideno H, Shibata T, Nakashima K, Nifuji A. Platelet-derived growth factor-BB regenerates functional periodontal ligament in the tooth replantation. Sci Rep 2022; 12:3223. [PMID: 35217688 PMCID: PMC8881622 DOI: 10.1038/s41598-022-06865-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 01/25/2022] [Indexed: 01/16/2023] Open
Abstract
Tooth ankylosis is a pathological condition of periodontal ligament (PDL) restoration after tooth replantation. Platelet-derived growth factor-BB (PDGF-BB) has been proposed as a promising factor for preventing tooth ankylosis. Using rat tooth replantation model, we investigated whether PDGF-BB accelerates the repair of PDL after tooth replantation without ankylosis, and its molecular mechanisms. In PDGF-BB pretreated replanted teeth (PDGF-BB group), ankylosis was markedly reduced and functionally organized PDL collagen fibers were restored; the mechanical strength of the healing PDL was restored to an average of 76% of that in non-replanted normal teeth at 21 days. The numbers of PDGF-Rβ- and BrdU-positive cells in the periodontal tissues of the PDGF-BB group were greater than those of atelocollagen pretreated replanted teeth (AC group). Moreover, in the PDGF-BB group, the periodontal tissues had fewer osteocalcin-positive cells and decreased number of nuclear β-catenin-positive cells compared to those in the AC group. In vitro analyses showed that PDGF-BB increased the proliferation and migration of human periodontal fibroblasts. PDGF-BB downregulated mRNA expressions of RUNX2 and ALP, and inhibited upregulatory effects of Wnt3a on β-catenin, AXIN2, RUNX2, COL1A1, and ALP mRNA expressions. These findings indicate that in tooth replantation, topical PDGF-BB treatment enhances cell proliferation and migration, and inhibits canonical Wnt signaling activation in bone-tooth ankylosis, leading to occlusal loading of the PDL tissues and subsequent functional restoration of the healing PDL. This suggests a possible clinical application of PDGF-BB to reduce ankylosis after tooth replantation and promote proper regeneration of PDL.
Collapse
Affiliation(s)
- Koichiro Komatsu
- Department of Pharmacology, School of Dental Medicine, Tsurumi University, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama, 230-8501, Japan.
| | - Hisashi Ideno
- Department of Pharmacology, School of Dental Medicine, Tsurumi University, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama, 230-8501, Japan.
| | - Tatsuya Shibata
- Department of Pharmacology, School of Dental Medicine, Tsurumi University, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama, 230-8501, Japan
- Division of Dental Pharmacology, Department of Oral Science, School of Dentistry, Oh-U University, 31-1 aza Sankakudoh, Tomita-machi, Kohriyama, 963-8611, Japan
| | - Kazuhisa Nakashima
- Department of Pharmacology, School of Dental Medicine, Tsurumi University, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama, 230-8501, Japan
| | - Akira Nifuji
- Department of Pharmacology, School of Dental Medicine, Tsurumi University, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama, 230-8501, Japan
| |
Collapse
|
3
|
Kang CM, Mo S, Jeon M, Jung UW, Shin Y, Shin JS, Shin BY, Lee SK, Choi HJ, Song JS. Intranuclear Delivery of Nuclear Factor-Kappa B p65 in a Rat Model of Tooth Replantation. Int J Mol Sci 2021; 22:ijms22041987. [PMID: 33671455 PMCID: PMC7922502 DOI: 10.3390/ijms22041987] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/14/2021] [Accepted: 02/16/2021] [Indexed: 01/25/2023] Open
Abstract
After avulsion and replantation, teeth are at risk of bone and root resorption. The present study aimed to demonstrate that the intra-nuclear transducible form of transcription modulation domain of p65 (nt-p65-TMD) can suppress osteoclast differentiation in vitro, and reduce bone resorption in a rat model of tooth replantation. Cell viability and nitric oxide release were evaluated in RAW264.7 cells using CCK-8 assay and Griess reaction kit. Osteoclast differentiation was evaluated using quantitative reverse transcriptase-polymerase chain reaction (RT-PCR) and tartrate-resistant acid phosphatase (TRAP) staining. Thirty-two maxillary rat molars were extracted and stored in saline (n = 10) or 10 µM nt-p65-TMD solution (n = 22) before replantation. After 4 weeks, specimens were scored according to the inflammatory pattern using micro-computed tomography (CT) imaging and histological analyses. nt-p65-TMD treatment resulted in significant reduction of nitric oxide release and osteoclast differentiation as studied using PCR and TRAP staining. Further, micro-CT analysis revealed a significant decrease in bone resorption in the nt-p65-TMD treatment group (p < 0.05). Histological analysis of nt-p65-TMD treatment group showed that not only bone and root resorption, but also inflammation of the periodontal ligament and epithelial insertion was significantly reduced. These findings suggest that nt-p65-TMD has the unique capabilities of regulating bone remodeling after tooth replantation.
Collapse
Affiliation(s)
- Chung-Min Kang
- Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea; (C.-M.K.); (S.M.); (M.J.)
- Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Korea;
| | - Seunghan Mo
- Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea; (C.-M.K.); (S.M.); (M.J.)
| | - Mijeong Jeon
- Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea; (C.-M.K.); (S.M.); (M.J.)
- Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Korea;
| | - Ui-Won Jung
- Department of Periodontology, College of Dentistry, Yonsei University, Seoul 03722, Korea;
| | - Yooseok Shin
- Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Korea;
- Department of Conservative Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea
| | - Jin-Su Shin
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea; (J.-S.S.); (B.-Y.S.); (S.-K.L.)
| | - Bo-Young Shin
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea; (J.-S.S.); (B.-Y.S.); (S.-K.L.)
| | - Sang-Kyou Lee
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea; (J.-S.S.); (B.-Y.S.); (S.-K.L.)
| | - Hyung-Jun Choi
- Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea; (C.-M.K.); (S.M.); (M.J.)
- Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Korea;
- Correspondence: (H.-J.C.); (J.S.S.); Tel.: +82-2-2228-3175 (H.-J.C.); +82-2-2228-3170 (J.S.S.); Fax: +82-2 365-7420 (H.-J.C.); +82-2 365-7420 (J.S.S.)
| | - Je Seon Song
- Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea; (C.-M.K.); (S.M.); (M.J.)
- Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Korea;
- Correspondence: (H.-J.C.); (J.S.S.); Tel.: +82-2-2228-3175 (H.-J.C.); +82-2-2228-3170 (J.S.S.); Fax: +82-2 365-7420 (H.-J.C.); +82-2 365-7420 (J.S.S.)
| |
Collapse
|
4
|
Kwak EJ, Cha IH, Nam W, Yook JI, Park YB, Kim HJ. Effects of locally administered rhBMP-2 and bisphosphonate on bone regeneration in the rat fibula. Oral Dis 2018; 24:1042-1056. [DOI: 10.1111/odi.12864] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 02/23/2018] [Accepted: 03/16/2018] [Indexed: 12/25/2022]
Affiliation(s)
- E-J Kwak
- Department of Oral and Maxillofacial Surgery; College of Dentistry; Yonsei University; Seoul Korea
| | - I-H Cha
- Department of Oral and Maxillofacial Surgery; College of Dentistry; Yonsei University; Seoul Korea
| | - W Nam
- Department of Oral and Maxillofacial Surgery; College of Dentistry; Yonsei University; Seoul Korea
| | - JI Yook
- Department of Oral Pathology; College of Dentistry; Yonsei University; Seoul Korea
| | - Y-B Park
- Department of Prosthodontics; College of Dentistry; Yonsei University; Seoul Korea
| | - HJ Kim
- Department of Oral and Maxillofacial Surgery; College of Dentistry; Yonsei University; Seoul Korea
| |
Collapse
|
5
|
Qian H, Ding Y, Wu Y, Li S. The effects of three modified Hank's balanced salt solutions on root resorption of late replanted teeth: A pilot study. J Craniomaxillofac Surg 2018; 46:808-814. [PMID: 29545029 DOI: 10.1016/j.jcms.2018.02.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 02/01/2018] [Accepted: 02/13/2018] [Indexed: 11/30/2022] Open
Abstract
PURPOSE The purpose of this study was to evaluate the effects of replanted rats' teeth that had been soaked in one of three modified Hank's balanced salt solutions (HBSSs) before replantation and after extended extra-oral dry time. MATERIALS AND METHODS Maxillary right incisors were extracted from 55 Wistar rats and kept dry for 30 or 60 min (n = 5 each). Afterwards, the pulp was extirpated and both the papilla and enamel organ were removed with a scalpel. Each group of teeth was soaked in one of three modified HBSSs or HBSS alone. After 30 min of immersion in solutions, the root canals were dried and filled with calcium hydroxide paste, and the teeth were replanted. After 8 weeks, animals were euthanized; then, specimens were processed as 5 μm-thick serial sections for histological examination and morphometric assessments. RESULTS The percentages of root resorption for the groups were found to be in the following order: HBSS3 (the bFGF group) > the HBSS only group > HBSS2 (the GSH group) > no soaking (the positive control group) > HBSS1 (the ALN group) for 30 min and the positive control group > the HBSS only group > HBSS2 > HBSS3 > HBSS1 for 60 min. The lowest incidence of resorption was observed in immediately replanted teeth (negative control). CONCLUSIONS The findings of this study suggest that soaking for 30 min in HBSS containing 1 mM alendronate can significantly inhibit root resorption for avulsed teeth that have been dried for 60 min.
Collapse
Affiliation(s)
- Hanyu Qian
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Yunpeng Ding
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Yangou Wu
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Shengjiao Li
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China.
| |
Collapse
|
6
|
Najeeb S, Siddiqui F, Khurshid Z, Zohaib S, Zafar MS, Ansari SA. Effect of bisphosphonates on root resorption after tooth replantation - a systematic review. Dent Traumatol 2017; 33:77-83. [PMID: 27960049 DOI: 10.1111/edt.12316] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/05/2016] [Indexed: 01/09/2023]
Abstract
BACKGROUND/AIM Replantation of avulsed teeth may lead to root resorption. Bisphosphonates (BPs), a class of drugs of used to treat resorptive diseases of the bone such as osteoporosis and Paget's disease, have been observed to exert an antiresorptive effect on periodontal bone as well. The antiresorptive properties of BPs could prove them useful in preventing root resorption of replanted avulsed teeth. The aim of this systematic review was to analyze and summarize the currently available literature concerning the use of BPs in preventing root resorption of avulsed teeth. MATERIALS AND METHODS PubMed/MEDLINE, Google Scholar, ISI Web of Knowledge, and Embase databases were searched using keywords 'bisphosphonate', 'replantation', and 'tooth'. Quality assessment of each study was carried out. In addition, general characteristics and outcomes of each study were summarized. RESULTS After exclusion of 116 irrelevant articles, 10 animal studies were included in this review. The majority of the studies suggest that surface application of zoledronate or alendronate reduces root resorption of replanted teeth in animal models. Surface treatment with etidronate had no significant effect on root resorption, and intracanal etidronate accelerated resorption. CONCLUSION Surface application of zoledronate and alendronate reduces root resorption of replanted teeth in animal models. However, the efficacy of intracanal usage of BPs is still debatable.
Collapse
Affiliation(s)
- Shariq Najeeb
- Department of Dentistry, Riyadh Consultative Clinics, Riyadh, Saudi Arabia
| | - Fahad Siddiqui
- Department of Pediatric Dentistry, Rutgers School of Dental Medicine, Newark, New Jersey, USA
| | - Zohaib Khurshid
- Department of Prosthodontics and Implantology, King Faisal University, Al-Hofuf, Saudi Arabia
| | - Sana Zohaib
- School of Biomedical Engineering, King Faisal University, Al-Hofuf, Saudi Arabia
| | - Muhammad Sohail Zafar
- Department of Restorative Dentistry, Taibah University, Madinah Al Munawwarah, Saudi Arabia
| | - Shazia Akbar Ansari
- Department of Oral Microbiology, Dow University of Health Sciences, Karachi, Pakistan
| |
Collapse
|
7
|
Kim HC, Song JM, Kim CJ, Yoon SY, Kim IR, Park BS, Shin SH. Combined effect of bisphosphonate and recombinant human bone morphogenetic protein 2 on bone healing of rat calvarial defects. Maxillofac Plast Reconstr Surg 2015; 37:16. [PMID: 26161381 PMCID: PMC4488498 DOI: 10.1186/s40902-015-0015-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 05/06/2015] [Indexed: 11/11/2022] Open
Abstract
Background This study aimed to investigate new bone formation using recombinant human bone morphogenetic protein 2 (rhBMP-2) and locally applied bisphosphonate in rat calvarial defects. Methods Thirty-six rats were studied. Two circular 5 mm diameter bony defect were formed in the calvaria using a trephine bur. The bony defect were grafted with Bio-Oss® only (group 1, n = 9), Bio-Oss® wetted with rhBMP-2 (group 2, n = 9), Bio-Oss® wetted with rhBMP-2 and 1 mM alendronate (group 3, n = 9) and Bio-Oss® wetted with rhBMP-2 and 10 mM alendronate (group 4, n = 9). In each group, three animals were euthanized at 2, 4 and 8 weeks after surgery, respectively. The specimens were then analyzed by histology, histomorphometry and immunohistochemistry analysis. Results There were significant decrease of bone formation area (p < 0.05) between group 4 and group 2, 3. Group 3 showed increase of new bone formation compared to group 2. In immunohistochemistry, collagen type I and osteoprotegerin (OPG) didn’t show any difference. However, receptor activator of nuclear factor κB ligand (RANKL) decreased with time dependent except group 4. Conclusion Low concentration bisphosphonate and rhBMP-2 have synergic effect on bone regeneration and this is result from the decreased activity of RANKL of osteoblast.
Collapse
Affiliation(s)
- Ho-Chul Kim
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, 626-787 Yangsan, Mulgeum-eup Korea
| | - Jae-Min Song
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, 626-787 Yangsan, Mulgeum-eup Korea.,Biomedical Research Institute of Pusan National University, Yangsan, Korea
| | - Chang-Joo Kim
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, 626-787 Yangsan, Mulgeum-eup Korea
| | - Sang-Yong Yoon
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, 626-787 Yangsan, Mulgeum-eup Korea.,Department of Oral and Maxillofacial Surgery, Good Gang-An Hospital, Busan, Korea
| | - In-Ryoung Kim
- Department of Oral Anatomy and Cell Biology, School of Dentistry, Pusan National University, Yangsan, Korea
| | - Bong-Soo Park
- Department of Oral Anatomy and Cell Biology, School of Dentistry, Pusan National University, Yangsan, Korea
| | - Sang-Hun Shin
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, 626-787 Yangsan, Mulgeum-eup Korea
| |
Collapse
|
8
|
Rothbarth CP, Bradaschia-Correa V, Ferreira LB, Arana-Chavez VE. Effects of the bisphosphonate alendronate on molars of young rats after lateral luxation. Dent Traumatol 2014; 30:415-22. [PMID: 24890501 DOI: 10.1111/edt.12116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/17/2014] [Indexed: 12/01/2022]
Abstract
BACKGROUND AND AIM The bisphosphonate alendronate (ALN) was employed with the aim of investigating its effects on dental and periodontal tissues after lateral luxation of developing molars. MATERIAL AND METHODS Twenty-one-day-old Wistar rats had their second upper molars laterally luxated. Daily 2.5 mg kg(-1) ALN injections started at the day of the luxation; controls received sterile saline solution. The teeth were analyzed 7, 14, and 21 days after the procedure. On the days cited, the maxillae were fixed, decalcified, and embedded in paraffin or Spurr resin. The paraffin sections were stained with H&E, incubated for TRAP histochemistry or immunolabeled for osteopontin (OPN). Spurr ultrathin sections were examined in a transmission electron microscope. RESULTS After 21 days, the root apex of luxated molars without ALN was wide open and disorganized and also covered by an irregular layer of cellular cementum, which was not observed in ALN-treated animals. Ankylosis sites were observed in ALN rats in both luxated and non-luxated teeth. The TRAP-positive osteoclasts were more numerous in ALN group, despite their latent ultrastructural appearance without the presence of resorption apparatus compared to controls. OPN immunolabeling revealed a thick immunopositive line in the dentin that must be resultant from the moment of the luxation, while ALN-treated specimens did not present alterations in dentin. CONCLUSION The present findings indicate that alendronate inhibits some alterations in dentin and cementum formation induced by dental trauma.
Collapse
Affiliation(s)
- Cláudia Pires Rothbarth
- Department of Biomaterials and Oral Biology, University of São Paulo School of Dentistry, São Paulo, Brazil; Department of Dentistry, Federal University of Pará, Belém, Brazil
| | | | | | | |
Collapse
|
9
|
Komatsu K, Shimada A, Shibata T, Wada S, Ideno H, Nakashima K, Amizuka N, Noda M, Nifuji A. Alendronate promotes bone formation by inhibiting protein prenylation in osteoblasts in rat tooth replantation model. J Endocrinol 2013; 219:145-58. [PMID: 24096963 DOI: 10.1530/joe-13-0040] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Bisphosphonates (BPs) are a major class of antiresorptive drug, and their molecular mechanisms of antiresorptive action have been extensively studied. Recent studies have suggested that BPs target bone-forming cells as well as bone-resorbing cells. We previously demonstrated that local application of a nitrogen-containing BP (N-BP), alendronate (ALN), for a short period of time increased bone tissue in a rat tooth replantation model. Here, we investigated cellular mechanisms of bone formation by ALN. Bone histomorphometry confirmed that bone formation was increased by local application of ALN. ALN increased proliferation of bone-forming cells residing on the bone surface, whereas it suppressed the number of tartrate-resistant acid phosphatase (TRAP)-positive osteoclasts in vivo. Moreover, ALN treatment induced more alkaline phosphatase-positive and osteocalcin-positive cells on the bone surface than PBS treatment. In vitro studies revealed that pulse treatment with ALN promoted osteocalcin expression. To track the target cells of N-BPs, we applied fluorescence-labeled ALN (F-ALN) in vivo and in vitro. F-ALN was taken into bone-forming cells both in vivo and in vitro. This intracellular uptake was inhibited by endocytosis inhibitors. Furthermore, the endocytosis inhibitor dansylcadaverine (DC) suppressed ALN-stimulated osteoblastic differentiation in vitro and it suppressed the increase in alkaline phosphatase-positive bone-forming cells and subsequent bone formation in vivo. DC also blocked the inhibition of Rap1A prenylation by ALN in the osteoblastic cells. These data suggest that local application of ALN promotes bone formation by stimulating proliferation and differentiation of bone-forming cells as well as inhibiting osteoclast function. These effects may occur through endocytic incorporation of ALN and subsequent inhibition of protein prenylation.
Collapse
Affiliation(s)
- Koichiro Komatsu
- Departments of Pharmacology Orthodontics, School of Dental Medicine, Tsurumi University, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan Transcriptome Research Group, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan Department of Developmental Biology of Hard Tissue, Graduate School of Dental Medicine, Hokkaido University, Kita 13, Nishi 7, Kita-ku, Sapporo 060-8586, Japan Department of Molecular Pharmacology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Chiyoda-ku, Tokyo 113-8510, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Ortega AJ“AJ, Campbell PM, Hinton R, Naidu A, Buschang PH. Local application of zoledronate for maximum anchorage during space closure. Am J Orthod Dentofacial Orthop 2012. [DOI: 10.1016/j.ajodo.2012.07.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
11
|
Kano T, Yamamoto R, Miyashita A, Komatsu K, Hayakawa T, Sato M, Oida S. Regeneration of Periodontal Ligament for Apatite-coated Tooth-shaped Titanium Implants with and without Occlusion Using Rat Molar Model. J HARD TISSUE BIOL 2012. [DOI: 10.2485/jhtb.21.189] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
12
|
Choi SC, Kwon YD, Kim KC, Kim GT. The effects of topical application of bisphosphonates on replanted rat molars. Dent Traumatol 2011; 26:476-80. [PMID: 21078072 DOI: 10.1111/j.1600-9657.2010.00929.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The purpose of this study was to evaluate the potential usefulness of two bisphosphonates (BPs) (etidronate and zoledronate), compared with that of alendronate, which is a well-known drug for delayed replantation, in decreasing or preventing inflammatory root resorption and replacement root resorption in replanted teeth. Eighty-four Sprague Dawley rat maxillary first molars were extracted, dried for 60 min and then replanted after root treatment. The rats were divided into four groups (control, alendronate, etidronate, zoledronate) as following treatments of avulsed root before replantation. At 7, 14, and 28 days postreplantation, the animals were sacrificed and the samples obtained and process for microscopic analysis. The data were statistically analyzed with the SPSS procedure, anova test and each test was complemented by the Tukey's post hoc test. The result indicated that topical application of alendronate and zoledronate, both nitrogen containing BPs, prevented inflammatory root resorption and inflammatory cell response in the delayed replantation model. Both drugs were demonstrated similar effects in the delayed tooth replantation model (P = 0.9). Etidronate did not prevent inflammatory root resorption and inflammation in the delayed replantation (P < 0.05). No significant differences in replacement root resorption were observed among all drugs. These results suggest that when teeth are dried and not replanted immediately, zoledronate, like alendronate, may prevent root resorption and facilitates the regeneration of periodontal tissues after replantation.
Collapse
Affiliation(s)
- Sung Chul Choi
- Department of Pediatric Dentistry and Institute of Oral Biology, School of Dentistry, Kyung Hee University, Gangdong-gu, Seoul, Korea
| | | | | | | |
Collapse
|
13
|
Andou K, Nakamura M, Ina Y, Sasaki K, Sasano Y. Root and periodontal tissue development after allogenic tooth transplantation between rat littermates. Oral Dis 2010; 17:379-86. [PMID: 21029265 DOI: 10.1111/j.1601-0825.2010.01761.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The study was designed to investigate the development of roots and periodontal tissues after allogenic tooth transplantation between rat littermates by micro-computed tomography (micro-CT) and histology. MATERIALS AND METHODS The upper right second molars in 2-week-old rats were extracted and immediately transplanted into the upper right first molar socket of rat littermates under anesthesia. The upper left second molars in 2-week-old recipient rats were used as a control. The rats were fixed and tissues analyzed at 0, 4, 8, or 12 weeks after transplantation. Root development of seven rats in each group was analyzed quantitatively using micro-CT. Periodontal tissue formation was examined qualitatively by histologic methods. RESULTS Roots developed after allogenic transplantation, but they were significantly shorter than control roots. The number of roots varied from one to four in transplanted teeth, while it was consistently four in control teeth. Periodontal tissue formation in transplanted teeth was equivalent to that of the control teeth. CONCLUSION Allogenic transplantation between rat littermates permits root development and periodontal tissue formation.
Collapse
Affiliation(s)
- K Andou
- Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | | | | | | | | |
Collapse
|
14
|
Komatsu K, Shimada A, Shibata T, Shimoda S, Oida S, Kawasaki K, Nifuji A. Long-term effects of local pretreatment with alendronate on healing of replanted rat teeth. J Periodontal Res 2008; 43:194-200. [PMID: 18302622 DOI: 10.1111/j.1600-0765.2007.01012.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVE Our previous study showed that topical alendronate, an inhibitor of bone resorption, reduces root resorption and ankylosis for 21 d after replantation of rat teeth. The aim of the present study was to evaluate the long-term inhibitory effects of topical alendronate in the replanted teeth. MATERIAL AND METHODS The rat maxillary first molars were extracted, placed in saline containing 1 mm alendronate (alendronate group) or saline (saline group) for 5 min and then replanted. The maxillae were dissected at 60 and 120 d. Microcomputed tomography horizontal sections at three root levels were analyzed for root and bone resorption, ankylosis and pulp mineralization. RESULTS In the alendronate group at 60 and 120 d, the frequencies of resorption of roots and bone were lower than those in the saline group. The p values show statistical significances of lower frequencies in the alendronate group than in the saline group by chi-square test (see Table 1). Ankylosis and pulp mineralization occurred in the alendronate and saline groups. Bone marrow spaces were narrowed in conjunction with bone tissue expansion around the replanted teeth in the alendronate group. CONCLUSION The inhibitory effects of topical alendronate were retained on root and bone resorption, but not on ankylosis and pulp mineralization, in the replanted teeth for 4 mo. Alendronate might also stimulate bone formation around the rat replanted teeth.
Collapse
Affiliation(s)
- K Komatsu
- Department of Pharmacology, School of Dental Medicine, Tsurumi University, Yokohama, Japan.
| | | | | | | | | | | | | |
Collapse
|
15
|
Tomohiro T, Yamane A, Asada Y. Characterization of excess hard tissue occurring in the mesio-buccal surface of the mandibular first molar in microphthalmic mouse. Arch Oral Biol 2007; 52:828-35. [PMID: 17442258 DOI: 10.1016/j.archoralbio.2007.02.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2006] [Revised: 02/07/2007] [Accepted: 02/28/2007] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The aim of the present study was to characterize the excess hard tissue on the mandible of the microphthalmic mouse having a mutation at the mitf locus. DESIGN Homozygous mutant (mi/mi) and wild-type (+/+) mice were obtained by mating a breeding pair (strain name, B6C3Fe a/a-Mitf(mi)/J). We used mi/mi and +/+ mice at ages 6, 7, 8, 9, 28, and 49 days for micro-computed tomographic and histologic analyses. RESULTS Excess hard tissue was found on the mesio-buccal surface of the mandibular first molar in all 11mi/mi mice, but none was found in the 8mi/+ or 14 +/+ mice. The excess hard tissue was located in the mental foramen connected to the mandibular canal. The mandibular canal passed near the basal part of the incisor and the root of the mandibular first molar due to aberrant development of the teeth and mandible. The excess hard tissue contained predentine immunostained for dentine sialoprotein, a marker for early stages of dentinogenesis, which was first observed at about 7 days of age. Dentine, predentine, pulp, and root-like structures were observed in the excess hard tissue, but neither enamel nor enamel organ was observed. CONCLUSION Odontogenic cells in the basal part of the incisor and/or the mandibular first molar with the ability to develop into odontoblasts and pulp cells appeared to migrate through the mandibular canal to the mental foramen, where they developed into odontoblasts and pulp-like cells, and then formed dentine and predentine-like structures.
Collapse
Affiliation(s)
- Tadafumi Tomohiro
- Department of Pediatric Dentistry, Tsurumi University School of Dental Medicine, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan
| | | | | |
Collapse
|
16
|
Thomopoulos S, Matsuzaki H, Zaegel M, Gelberman RH, Silva MJ. Alendronate prevents bone loss and improves tendon-to-bone repair strength in a canine model. J Orthop Res 2007; 25:473-9. [PMID: 17205555 DOI: 10.1002/jor.20293] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Previously we showed a loss of bone and a concomitant decrease in mechanical properties in the first 21 days after flexor tendon insertion site injury and repair in a canine model. The goal of this short-term study was to suppress bone loss after insertion site repair using alendronate in an attempt to prevent the reduction in biomechanical properties. Flexor tendons of the second and fifth digits of the right forelimbs of canines were injured and repaired. Dogs received a daily oral dose of alendronate (2 mg/kg). One digit in each dog also received a local dose of alendronate in the bone tunnel at the time of surgery. The repair was evaluated for bone mineral density (BMD) and biomechanical properties and compared to data from a previous study in which no alendronate was used. Alendronate was effective in protecting the distal phalanx from resorption during tendon-to-bone healing (BMD was 94 and 104% of control for systemic alendronate and for systemic plus local alendronate, respectively). Alendronate treatment prevented much of the decrease in ultimate load that occurs in the first 21 days. Without treatment, ultimate load was 42% of control. With systemic alendronate treatment and systemic plus local alendronate treatment, ultimate load was 78 and 69% of control, respectively. Failure mode was significantly different when comparing alendronate treatment to repair alone. A lower incidence of suture pull through was found in alendronate treated dogs, suggesting less tendon degeneration. Ultimate load can be improved in association with preventing the bone loss that normally occurs during the early period following tendon-to-bone repair. These initial short-term data demonstrate the potential for a clinical treatment that could enhance tendon-to-bone healing.
Collapse
Affiliation(s)
- Stavros Thomopoulos
- Department of Orthopaedic Surgery, Washington University, 1 Barnes-Jewish Hospital Plaza, Suite 11300, Campus Box 8233, St. Louis, Missouri 63110, USA.
| | | | | | | | | |
Collapse
|
17
|
Dannemann C, Grätz KW, Riener MO, Zwahlen RA. Jaw osteonecrosis related to bisphosphonate therapy: a severe secondary disorder. Bone 2007; 40:828-34. [PMID: 17236837 DOI: 10.1016/j.bone.2006.11.023] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2006] [Revised: 10/21/2006] [Accepted: 11/10/2006] [Indexed: 11/20/2022]
Abstract
Bisphosphonate-related osteonecrosis of the jaws (BON), first described in 2003, is gaining importance due to the increasing indication spectrum of bisphosphonate therapy [S. Takeyama, M. Ito, H. Shinoda, A novel bisphosphonate, TRK-530, for periodontitis, Bone 38 (2006) 31-31; M. Tagil, A. W-Dahl, J. Astrand, D. Little, S. Toksvig-Larsen, Decreasing the catabolic response by a single bisphosphonate infusion shortens the healing time in hemicallotasis operations, Bone 38 (2006) 84-85; E. Rodriguez, M.C. Duran, L.M. Rodriguez, R. Ros, M.R. Aleman, M. Rodriguez-Gaspar, A.M. Lopez, E. Garcia-Valdecasas, F. Santolaria, Intravenous (IV) bisphosphonates for osteopenic cancer survivor women: an alternative treatment, Bone 38 (2006) 72-73; D.G. Little, K. Ward, P. Kiely, M.C. Bellemore, J. Briody, C.T. Cowell, Bisphosphonate rescue in distraction osteogenesis: a case series, Bone 38 (2006) 80-80; R. Marx, Pamidronate (Aredia) and zoledronate (Zometa) induced avascular necrosis of the jaws: a growing epidemic, J. Oral Maxillofac. Surg. 61 (2003) 1115-1118]. BON patients suffering from varying bony defects and symptoms are extremely restricted in their quality of life. Due to a limited knowledge of the aetiology of BON efficient evidence-based treatment strategies are lacking. Until now 23 patients with bisphosphonate-related osteonecrosis have been admitted to the Department of Cranio-Maxillofacial Surgery of the University of Zurich. A complete history has been recorded. All patients underwent clinical and radiographic examination. CT scans and MRI have been performed in selected cases. All patients had in common that, before signs of BON were observed, a local traumatic incidence had occurred. All patients showed signs of infection which could be remarkably reduced by antibacterial treatment. Furthermore, the period of bisphosphonate treatment was found to be one of the significant factors causing bisphosphonate-related osteonecrosis of the jaws. The aetiology of BON appears to depend on multiple factors: period and type of bisphosphonate therapy and trauma paving the way for an invasion of pathogens. Because evidence based therapy protocols for complete remodelling of bone defect are still missing, prevention in bisphosphonate-treated patients seems to be of utmost importance. A close interdisciplinary collaboration is required.
Collapse
Affiliation(s)
- C Dannemann
- Department of Cranio-Maxillofacial Surgery, University Hospital Zurich, Rämistrasse 100, CH-8126 Zürich, Switzerland.
| | | | | | | |
Collapse
|
18
|
Fong MM, Darendeliler MA, Hunter N, Shen G. Epithelial cells in PDL are critical in resuming the integral relation between tooth root and supporting bone after trauma--a transplantation experiment. Arch Oral Biol 2006; 52:182-8. [PMID: 17049482 DOI: 10.1016/j.archoralbio.2006.08.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2006] [Revised: 08/13/2006] [Accepted: 08/25/2006] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The aim of this study was to determine the response of the residual epithelial network following traumatic breakdown of the periodontal ligament (PDL). METHODS Mandibular incisor sections with PDL (experimental) and sections denuded of PDL (control) from 4- to 6-week-old Wistar-Furth rats were transplanted into the defects created in the frontal bone of the recipient syngeneic rats. At intervals, the defects with implanted teeth roots were collected and processed for histological and biochemical examination. Immunolocalization of epithelial cells was performed to monitor their phenotypic changes during transplantation healing period. RESULTS (1) Histological observation of the experimental sample revealed the sequence of cellular response characterized by an initial degeneration of PDL followed by a proliferation of granulation tissue. There was also a marked odontoblastic reaction with extensive deposition of regular dentine within the pulp chambers. In the control group, initial signs of bony fusion with dentine led to an extensive ankylosis and bone replacement between roots and defects. (2) Immunostaining indicated that, in experimental groups, the pattern of regularly spaced epithelial cells lying in close approximation to the root surface was distinct 10 days post-transplantation but became diminished afterwards. The immunoreaction against epithelial cells was negative in the control. CONCLUSION Residual PDL is essential to prevent ankylosis after trauma and epithelial cells may facilitate the re-establishment of root-PDL-bone complex by transforming into mesenchymal cells.
Collapse
Affiliation(s)
- Michele M Fong
- Discipline of Orthodontics, Faculty of Dentistry, Sydney Dental Hospital, The University of Sydney, Sydney, Australia
| | | | | | | |
Collapse
|