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Yi M, Yin Y, Sun J, Wang Z, Tang Q, Yang C. Hormone and implant osseointegration: Elaboration of the relationship among function, preclinical, and clinical practice. Front Mol Biosci 2022; 9:965753. [PMID: 36188222 PMCID: PMC9522461 DOI: 10.3389/fmolb.2022.965753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 08/16/2022] [Indexed: 11/13/2022] Open
Abstract
As clusters of peptides or steroids capable of high-efficiency information transmission, hormones have been substantiated to coordinate metabolism, growth, development, and other physiological processes, especially in bone physiology and repair metabolism. In recent years, the application of hormones for implant osseointegration has become a research hotspot. Herein, we provide a comprehensive overview of the relevant reports on endogenous hormones and their corresponding supplementary preparations to explore the association between hormones and the prognosis of implants. We also discuss the effects and mechanisms of insulin, parathyroid hormone, melatonin, vitamin D, and growth hormone on osseointegration at the molecular and body levels to provide a foothold and guide future research on the systemic conditions that affect the implantation process and expand the relative contraindications of the implant, and the pre-and post-operative precautions. This review shows that systemic hormones can regulate the osseointegration of oral implants through endogenous or exogenous drug-delivery methods.
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Affiliation(s)
- Ming Yi
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Ying Yin
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Jiwei Sun
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Zeying Wang
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Jiao Tong University School of Medicine, Shanghai Ninth People's Hospital, Shanghai, China
| | - Qingming Tang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Cheng Yang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
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Potential bioactive coating system for high-performance absorbable magnesium bone implants. Bioact Mater 2022; 12:42-63. [PMID: 35087962 PMCID: PMC8777287 DOI: 10.1016/j.bioactmat.2021.10.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 10/21/2021] [Accepted: 10/21/2021] [Indexed: 12/11/2022] Open
Abstract
Magnesium alloys are considered the most suitable absorbable metals for bone fracture fixation implants. The main challenge in absorbable magnesium alloys is their high corrosion/degradation rate that needs to be controlled. Various coatings have been applied to magnesium alloys to slow down their corrosion rates to match their corrosion rate to the regeneration rate of the bone fracture. In this review, a bioactive coating is proposed to slow down the corrosion rate of magnesium alloys and accelerate the bone fracture healing process. The main aim of the bioactive coatings is to enhance the direct attachment of living tissues and thereby facilitate osteoconduction. Hydroxyapatite, collagen type I, recombinant human bone morphogenetic proteins 2, simvastatin, zoledronate, and strontium are six bioactive agents that show high potential for developing a bioactive coating system for high-performance absorbable magnesium bone implants. In addition to coating, the substrate itself can be made bioactive by alloying magnesium with calcium, zinc, copper, and manganese that were found to promote bone regeneration. Bioactive-coated magnesium implant could accelerate bone fracture healing time to match with magnesium degradation. Hydroxyapatite, collagen type I, recombinant human bone morphogenetic proteins 2, simvastatin, zoledronate, and strontium are high potential bioactive coating materials. The incorporation of Ca, Zn, Cu, Sr, and Mn in Mg base-metal could further enhance bone formation.
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The Role of GH/IGF Axis in Dento-Alveolar Complex from Development to Aging and Therapeutics: A Narrative Review. Cells 2021; 10:cells10051181. [PMID: 34066078 PMCID: PMC8150312 DOI: 10.3390/cells10051181] [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: 03/29/2021] [Revised: 05/02/2021] [Accepted: 05/10/2021] [Indexed: 12/30/2022] Open
Abstract
The GH/IGF axis is a major regulator of bone formation and resorption and is essential to the achievement of normal skeleton growth and homeostasis. Beyond its key role in bone physiology, the GH/IGF axis has also major pleiotropic endocrine and autocrine/paracrine effects on mineralized tissues throughout life. This article aims to review the literature on GH, IGFs, IGF binding proteins, and their respective receptors in dental tissues, both epithelium (enamel) and mesenchyme (dentin, pulp, and tooth-supporting periodontium). The present review re-examines and refines the expression of the elements of the GH/IGF axis in oral tissues and their in vivo and in vitro mechanisms of action in different mineralizing cell types of the dento-alveolar complex including ameloblasts, odontoblasts, pulp cells, cementoblasts, periodontal ligament cells, and jaw osteoblasts focusing on cell-specific activities. Together, these data emphasize the determinant role of the GH/IGF axis in physiological and pathological development, morphometry, and aging of the teeth, the periodontium, and oral bones in humans, rodents, and other vertebrates. These advancements in oral biology have elicited an enormous interest among investigators to translate the fundamental discoveries on the GH/IGF axis into innovative strategies for targeted oral tissue therapies with local treatments, associated or not with materials, for orthodontics and the repair and regeneration of the dento-alveolar complex and oral bones.
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Chaves LH, Giovanini AF, Zielak JC, Scariot R, Gonzaga CC, Storrer CLM, Khajotia SS, Esteban Florez FL, Deliberador TM. Growth hormone effects on healing efficacy, bone resorption and renal morphology of rats: histological and histometric study in rat calvaria. Heliyon 2020; 6:e05226. [PMID: 33102851 PMCID: PMC7575886 DOI: 10.1016/j.heliyon.2020.e05226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/18/2020] [Accepted: 10/08/2020] [Indexed: 01/11/2023] Open
Abstract
Previous reports demonstrated the utility of systemic application of growth hormone (GH) in the treatment of bone defects. Very few studies correlated bone repair efficacy with hepatic and renal side effects promoted by locally-delivered GH. The objectives of this study were to assess the bone repair properties along with hepatic and renal adverse effects promoted by local application of GH in a rat model. Thirty-two rats were randomly divided (4 groups; n = 8/group), as follows: (i) AB (autogenous bone + local application of saline solution [SS]), (ii) AB+ (autogenous bone + SS local application + SS irrigation), (iii) AB/GH+ (autogenous bone + SS local application + GH irrigation) and (iv) AB/GHL+ (autogenous bone + GH local application + GH irrigation). Critical-sized defects (diameter = 5.0 mm) were surgically created by a single operator in the calvaria of rats. Defects were filled with ground autogenous bone. Defects pertaining to AB+ and AB/GH+ received a mixture of autogenous bone and a SS-saturated (0.02 mL) collagen sponge covered with bovine cortical membrane. Defects in group AB/GHL+, were filled with the same biomaterials saturated with GH (0.02 mL). SS (0.1 mL) or GH (0.1 mL, equivalent to 0.4 IU) were applied locally on alternate days (8 weeks) in animals in groups AB, AB+ and AB/GH+ or AB/GHL+, respectively. Bone repair properties was determined in hematoxylin/eosin-stained slices using traditional histologic and histomorphometric techniques along with optical microscopy and digital image analysis. Statistical differences among groups was determined using Kruskal-Wallis and Tukey post hoc tests (α = 0.05). Histology results indicated that AB and AB+ displayed greater presence of autogenous bone as compared to AB/GH+ and AB/GHL+. Histomorphometric results indicated significantly higher osteoid matrix formation in AB and AB+ when compared to AB/GHL+ (p = 0.009). Kidneys and livers were found to have their glomeruli preserved in AB and AB+. Strong glomeruli necrosis and large areas of protein deposition were found in AB/GH+. Abnormal small-sized glomeruli were found in AB/GHL+. The utilization of autogenous bone graft associated with local application and irrigation with GH was shown to not improve the bone repair in calvarial critical-sized defects in a rat model.
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Affiliation(s)
- Luis Henrique Chaves
- School of Health Sciences, Graduate Program in Dentistry, Universidade Positivo, Rua Prof. Pedro Viriato Parigot de Souza 5300, Curitiba, Paraná 81280-330, Brazil
| | - Allan Fernando Giovanini
- School of Health Sciences, Graduate Program in Dentistry, Universidade Positivo, Rua Prof. Pedro Viriato Parigot de Souza 5300, Curitiba, Paraná 81280-330, Brazil
| | - Joao Cesar Zielak
- School of Health Sciences, Graduate Program in Dentistry, Universidade Positivo, Rua Prof. Pedro Viriato Parigot de Souza 5300, Curitiba, Paraná 81280-330, Brazil
| | - Rafaela Scariot
- School of Health Sciences, Graduate Program in Dentistry, Universidade Positivo, Rua Prof. Pedro Viriato Parigot de Souza 5300, Curitiba, Paraná 81280-330, Brazil
| | - Carla Castiglia Gonzaga
- School of Health Sciences, Graduate Program in Dentistry, Universidade Positivo, Rua Prof. Pedro Viriato Parigot de Souza 5300, Curitiba, Paraná 81280-330, Brazil
| | - Carmen Lucia Mueller Storrer
- School of Health Sciences, Graduate Program in Dentistry, Universidade Positivo, Rua Prof. Pedro Viriato Parigot de Souza 5300, Curitiba, Paraná 81280-330, Brazil
| | - Sharukh Soli Khajotia
- Department of Restorative Sciences Division of Dental Biomaterials, College of Dentistry, University of Oklahoma Health Sciences Center, 1201 N. Stonewall Ave., Oklahoma City, Oklahoma, 73117, USA
| | - Fernando Luis Esteban Florez
- Department of Restorative Sciences Division of Dental Biomaterials, College of Dentistry, University of Oklahoma Health Sciences Center, 1201 N. Stonewall Ave., Oklahoma City, Oklahoma, 73117, USA
| | - Tatiana Miranda Deliberador
- School of Health Sciences, Graduate Program in Dentistry, Universidade Positivo, Rua Prof. Pedro Viriato Parigot de Souza 5300, Curitiba, Paraná 81280-330, Brazil
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Effect of Growth Hormone Supplementation on Osseointegration: A Systematic Review and Meta-analyses. IMPLANT DENT 2018; 26:613-620. [PMID: 28574857 DOI: 10.1097/id.0000000000000616] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVES The aim of this study was to assess whether growth hormone (GH) replacement therapy can enhance implant osseointegration. MATERIALS AND METHODS A systematic literature search was conducted from 1982 to March 2016. A structured search using the keywords "growth hormone," "implants," and "osseointegration" was performed to identify preclinical and clinical in vivo controlled studies and was followed by a 2-phase search strategy. Initially, 31 potentially relevant articles were identified. After removal of duplicates and screening by title and abstract, 10 potential studies were included. Studies were assessed for bias and data were synthesized using a random-effects meta-analysis model. RESULTS All studies were preclinical animal trials, and the follow-up period ranged from 2 to 16 weeks. Seventy percent of the included studies reported an increase in bone-to-implant contact in animals receiving GH compared with controls. Meta-analysis showed a significant mean difference for bone to implant between GH groups versus controls (no GH supplementation) of 10.60% (95% confidence interval: 3.79%-17.41%) favoring GH administration. CONCLUSION GH treatment seems to promote osseointegration around implants in preclinical studies; however, these findings must be assessed in highly controlled human clinical trials as a number of confounding factors may have influenced the outcomes of the included studies.
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Bodelón OG, Clemente C, Alobera MA, Aguado-Henche S, Escudero ML, Alonso MCG. Osseointegration of TI6Al4V dental implants modified by thermal oxidation in osteoporotic rabbits. Int J Implant Dent 2016; 2:18. [PMID: 27747710 PMCID: PMC5005616 DOI: 10.1186/s40729-016-0051-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 07/07/2016] [Indexed: 02/05/2023] Open
Abstract
Background In this work, the effect of the heat treatment on Ti6Al4V implants and topical administration of growth hormone to address a better osseointegration in osteoporotic patients has been analysed. Methods The osseointegration process of Ti6Al4V implants modified by oxidation treatment at 700 °C for 1 h and the influence of local administration of growth hormone (GH) in osteoporotic female rabbits after 15 and 30 days of implantation have been studied. Bone response was analysed through densitometric and histomorphometric studies. Characterization of the surface was provided by scanning electron microscopy. Results The oxidation treatment promotes the formation of an oxide scale grown on the Ti6Al4V implants that alters the nanoroughness of the surface. Bone mineral density (BMD) increases from 0.347 ± 0.014 (commercial) to 0.383 ± 0.012 g cm−2 (modified), and bone-to-implant contact (BIC) goes from 48.01 ± 14.78 (commercial) to 55.37 ± 15.31 (modified) after 30 days of implantation. Conclusions The oxidation treatment on the Ti6Al4V dental implants enhances the early bone formation at the longest periods of implantation. No significant differences in the BMD and BIC results in healthy and osteoporotic rabbits were revealed with respect to the local administration of GH in the implantation site.
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Affiliation(s)
- Oscar G Bodelón
- Department of Characterization, Quality and Safety, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Madrid, Spain
| | - Celia Clemente
- Department of Human Anatomy and Embryology, School of Medicine, University of Alcalá, Alcalá de Henares, Spain
| | - Miguel Angel Alobera
- Stomatology Department IV, Complutense University of Madrid (UCM), Madrid, Spain
| | - Soledad Aguado-Henche
- Department of Human Anatomy and Embryology, School of Medicine, University of Alcalá, Alcalá de Henares, Spain
| | - María Lorenza Escudero
- Department of Surface Engineering, Corrosion and Durability, National Center for Metallurgical Research (CENIM), CSIC, Avda. Gregorio del Amo 8, 28040, Madrid, Spain
| | - María Cristina García Alonso
- Department of Surface Engineering, Corrosion and Durability, National Center for Metallurgical Research (CENIM), CSIC, Avda. Gregorio del Amo 8, 28040, Madrid, Spain.
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Salomó-Coll O, de Maté-Sánchez JEV, Ramírez-Fernandez MP, Hernández-Alfaro F, Gargallo-Albiol J, Calvo-Guirado JL. Osseoinductive elements around immediate implants for better osteointegration: a pilot study in foxhound dogs. Clin Oral Implants Res 2016; 29:1061-1069. [PMID: 26923181 DOI: 10.1111/clr.12809] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2016] [Indexed: 02/05/2023]
Abstract
OBJECTIVE The aim of this study was to evaluate the effects on osseointegration of topical applications of melatonin vs. vitamin D over surfaces of immediate implants. MATERIALS AND METHODS Mandibular premolar distal roots (P2 , P3 , P4 ) were extracted bilaterally from six American Foxhound dogs. Three conical immediate implants were randomly placed bilaterally in each mandible. Three randomized groups were created: melatonin 5% test group (MI), vitamin D 10% test group (DI), and Control group implants (CI). Block sections were obtained after 12 weeks and processed for mineralized ground sectioning. Bone-to-implant contact (total BIC), new bone formation (NBF), inter-thread bone (ITB), and histological linear measurements (HLM) were assessed. RESULTS At 12 weeks, all implants were clinically stable and histologically osseointegrated. Total BIC values were 49.20 ± 3.26 for the MI group, 49.86 ± 1.89 for DI group and 45.78 ± 4.21 for the CI group (P < 0.018) with statistically significant difference between the three groups. BIC percentage were 42.44 ± 2.18 for MI, 44.56 ± 1.08 for DI, and 41.95 ± 3.34 for CI groups respectively (P > 0.05). Inter-thread bone formation values were MI 17.56 ± 2.01, for DI 19.87 ± 0.92, and CI 14.56 ± 1.24 (P > 0.05). Statistically significant differences in peri-implant new bone formation were found between the three groups: MI 28.76 ± 1.98, DI 32.56 ± 1.11 and CI 25.43 ± 4.67, respectively (P < 0.045). Linear measurements showed that the MI group showed significantly less lingual crestal bone loss (CBL) (MI 0.59 ± 0.71), compared to DI (0.91 ± 1.21) and CI (0.93 ± 1.21) (P < 0.042), and less lingual peri-implant mucosa (PIM) (MI 3.11 ± 1.34),(DI 3.25 ± 0.18 compared with CI 3.54 ± 1.81 (P = 0.429). Linear measurements of buccal CBL showed significantly less buccal bone loss in test DI (0.36 ± 0.12) than CI (1.34 ± 1.23) and MI (1.11 ± 1.38) (P = 0.078). CONCLUSIONS Within the limitations of this animal study, topical applications of 5% Melatonin or 10% vitamin D improved bone formation around implants placed immediately after extraction and helped to reduce CBL after 12 weeks osseointegration.
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Affiliation(s)
- O Salomó-Coll
- Department of Oral and Maxillofacial Surgery, International University of Catalonia (UIC), Barcelona, Spain
| | - J E Val de Maté-Sánchez
- Facultad de Medicina y Odontología, Universidad Católica San Antonio de Murcia (UCAM), Murcia, Spain
| | - M P Ramírez-Fernandez
- Facultad de Medicina y Odontología, Universidad Católica San Antonio de Murcia (UCAM), Murcia, Spain
| | - F Hernández-Alfaro
- Department of Oral and Maxillofacial Surgery, International University of Catalonia (UIC), Barcelona, Spain
| | - J Gargallo-Albiol
- Department of Oral and Maxillofacial Surgery, International University of Catalonia (UIC), Barcelona, Spain
| | - J L Calvo-Guirado
- Facultad de Medicina y Odontología, Universidad Católica San Antonio de Murcia (UCAM), Murcia, Spain
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Salomó-Coll O, Maté-Sánchez de Val JE, Ramírez-Fernandez MP, Hernández-Alfaro F, Gargallo-Albiol J, Calvo-Guirado JL. Topical applications of vitamin D on implant surface for bone-to-implant contact enhance: a pilot study in dogs part II. Clin Oral Implants Res 2015; 27:896-903. [DOI: 10.1111/clr.12707] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2015] [Indexed: 12/19/2022]
Affiliation(s)
- Oscar Salomó-Coll
- Department of Oral and Maxillofacial Surgery; International University of Catalonia; Barcelona Spain
| | | | - María P. Ramírez-Fernandez
- International Dentistry Research Cathedra; Universidad Católica San Antonio de Murcia (UCAM); Murcia Spain
| | - Federico Hernández-Alfaro
- Department of Oral and Maxillofacial Surgery; International University of Catalonia; Barcelona Spain
| | - Jordi Gargallo-Albiol
- Department of Oral and Maxillofacial Surgery; International University of Catalonia; Barcelona Spain
| | - José L. Calvo-Guirado
- International Dentistry Research Cathedra; Universidad Católica San Antonio de Murcia (UCAM); Murcia Spain
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Garcia RF, Duarte AAPDS, Boing F, Ligabue RA, Pagnoncelli RM. Incorporação do hormônio do crescimento humano recombinante (rhGH) em matriz de polímero biodegradável. REVISTA DE ODONTOLOGIA DA UNESP 2015. [DOI: 10.1590/1807-2577.1082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
<title>Resumo</title><sec><title>Objetivo</title><p>Incorporar o hormônio de crescimento recombinante humano em um polímero biodegradável (PLGA).</p></sec><sec><title>Material e método</title><p>As matrizes foram confeccionadas através da técnica de evaporação de solventes. Foi feita uma mistura do polímero (poli ácido glicólico lático) e do hormônio do crescimento humano recombinante (Saizen<sup>®</sup> Merck Serono S.A. Aubonne, Suíça). Essa mistura foi vertida em moldes de silicone circulares de 1 cm de diâmetro e aproximadamente 2 mm de espessura, e levada para secagem em uma câmara de evaporação de solvente por 48 horas. Após esse período, as matrizes foram imersas em PBS e passaram por um banho termostatizado (ensaio de degradação hidrolítica), <italic>in vitro</italic>, à temperatura de 37°C. As amostras foram retiradas do banho no intervalo de 1, 2, 3, 4, 7, 10 e 14 dias. Foram aferidas a perda de massa, a variação do pH e a concentração do hormônio liberado em função do tempo.</p></sec><sec><title>Resultado</title><p>A concentração do hormônio liberado em função do tempo foi aumentando até o terceiro dia. No quarto dia, houve uma queda e, no sétimo, ocorreu um aumento do hormônio liberado, estendendo-se até o décimo dia; no 14° dia, houve queda novamente. O pH teve uma queda brusca de 7,4 para 3,2 no primeiro dia, mantendo uma pequena queda até o 14° dia. A perda de massa foi gradual em relação ao tempo, como já era esperado.</p></sec><sec><title>Conclusão</title><p>O PLGA é um bom biomaterial para confecção de matrizes com hormônio do crescimento. Revelou-se possível incorporar o rhGH nessa matriz, de modo a, então, desenvolver-se um substituto ósseo.</p></sec>
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Affiliation(s)
| | | | - Fernanda Boing
- Pontifícia Universidade Católica do Rio Grande do Sul, Brazil
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Abreu MER, Valiati R, Hubler R, Moraes AN, Antonini F, de Oliveira HDC, Pagnoncelli RM. Effect of Recombinant Human Growth Hormone on Osseointegration of Titanium Implants: A Histologic and Biomechanical Study in Rabbits. J ORAL IMPLANTOL 2015; 41:e102-9. [DOI: 10.1563/aaid-joi-d-13-00306] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To evaluate the action of recombinant human growth hormone (rhGH) on osseointegration of titanium implants in rabbits. Fourteen adult New Zealand rabbits, aged 30 weeks, were used in the study, and randomly divided into 2 groups. In each animal, 2 (2.2 mm × 6 mm) pure titanium implants were placed in the left tibia. In one group (test group), 1 IU (0.3 mg) of rhGH as a lyophilized powder was applied to each osteotomy site prior to implant placement. Only titanium implants were placed in osteotomy sites of the other group (control). Animals were humanely killed at 14 and 42 days after surgery, and samples were then prepared for histologic analysis and biomechanical test. The biomechanical test showed tensile pull-out stress values of 33.88 N/cm2 for controls and 59.26 N/cm2 for the rhGH group at 14 days and 25.99 N/cm2 and 29.69 N/cm2 for the control and the test group, respectively, at 42 days. Scanning electron microscope analysis showed more uniform and abundant bone tissue in contact with the implants for the test group at 14 days, and no differences between groups at 42 days. Furthermore, histologic analysis also showed accelerated bone repair in 14 days and a more advanced stage of bone remodeling for the rhGH-treated group when compared to controls after 42 days of repair. Such results show that the topical use of rhGH induces new bone formation in the early stages of bone repair and hence accelerates osseointegration of titanium dental implants.
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Affiliation(s)
| | | | - Roberto Hubler
- Department of Physics, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Aury Nunes Moraes
- School of Veterinary Medicine, Universidade do Estado de Santa Catarina, Lages, Brazil
| | - Fernando Antonini
- Oral and Maxillofacial Surgery Department, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Henrique do Couto de Oliveira
- Oral and Maxillofacial Surgery Department, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Rogério Miranda Pagnoncelli
- Oral and Maxillofacial Surgery Department, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
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Salomó-Coll O, Maté-Sánchez de Val JE, Ramírez-Fernández MP, Satorres-Nieto M, Gargallo-Albiol J, Calvo-Guirado JL. Osseoinductive elements for promoting osseointegration around immediate implants: a pilot study in the foxhound dog. Clin Oral Implants Res 2015; 27:e167-e175. [DOI: 10.1111/clr.12596] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2015] [Indexed: 02/01/2023]
Affiliation(s)
- O. Salomó-Coll
- Department of Oral and Maxillofacial Surgery; International University of Catalonia; Barcelona Spain
| | | | | | - M. Satorres-Nieto
- Department of Oral and Maxillofacial Surgery; International University of Catalonia; Barcelona Spain
| | - J. Gargallo-Albiol
- Department of Oral and Maxillofacial Surgery; International University of Catalonia; Barcelona Spain
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Litsas G. Growth Hormone and Craniofacial Tissues. An update. Open Dent J 2015; 9:1-8. [PMID: 25674165 PMCID: PMC4319194 DOI: 10.2174/1874210601509010001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 12/08/2014] [Accepted: 12/11/2014] [Indexed: 12/28/2022] Open
Abstract
Growth hormone is an important regulator of bone homeostasis. In childhood, it determines the longitudinal bone growth, skeletal maturation, and acquisition of bone mass. In adulthood, it is necessary to maintain bone mass throughout life. Although an association between craniofacial and somatic development has been clearly established, craniofacial growth involves complex interactions of genes, hormones and environment. Moreover, as an anabolic hormone seems to have an important role in the regulation of bone remodeling, muscle enhancement and tooth development. In this paper the influence of growth hormone on oral tissues is reviewed.
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López-López PJ, Mareque-Bueno J, Boquete-Castro A, Aguilar-Salvatierra Raya A, Martínez-González JM, Calvo-Guirado JL. The effects of healing abutments of different size and anatomic shape placed immediately in extraction sockets on peri-implant hard and soft tissues. A pilot study in foxhound dogs. Clin Oral Implants Res 2014; 27:90-6. [DOI: 10.1111/clr.12516] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2014] [Indexed: 11/29/2022]
Affiliation(s)
- Patricia J. López-López
- Department of General and Implant Dentistry; Faculty of Medicine and Dentistry; University of Murcia; Murica Spain
| | - Javier Mareque-Bueno
- Department of Oral Surgery; International University of Catalonia; Barcelona Spain
| | - Ana Boquete-Castro
- Department of Pharmacological Interactions in Dentistry; Dental School; University of Granada; Granada Spain
| | | | | | - José L. Calvo-Guirado
- Department of General and Implant Dentistry; Faculty of Medicine and Dentistry; University of Murcia; Murica Spain
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14
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Al-Hezaimi K, Nevins M, Kim SW, Fateh A, Kim DM. Efficacy of growth factor in promoting early osseointegration. J ORAL IMPLANTOL 2014; 40:543-8. [PMID: 24946082 DOI: 10.1563/aaid-joi-d-13-00304] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A preclinical study was conducted to evaluate the feasibility of 2 different topical formulations of recombinant human platelet-derived growth factor-BB (rhPDGF-BB) to promote early osseointegration and enhanced bone-to-implant contact (BIC) for dental implants placed in an edentulous ridge. Six female beagle dogs were divided into 3 groups. The control group included 4 implants with no coating; test group A included 10 implants with commercially available rhPDGF-BB formulation coating; and second test group B included 10 implants with prototype viscous rhPDGF-BB coating. Three dogs were sacrificed at 3 weeks (12 implants) and the remaining 3 dogs at 6 weeks after implant placement (12 implants). The specimens were retrieved for histological evaluation, and revealed an uneventful healing of all implants without any sign of an inflammatory response at the different time intervals. Furthermore, the bone was in very close contact with the implants' surfaces with no evidence of intervening fibrous tissue layers. At 3 weeks, new bone formation between most implant threads on rhPDGF-BB coated implants was evident, whereas in the control group only a thin and sparse amount of new bone was noted. At 6 weeks, the commercially available rhPDGF-BB formulation coated implant group (Group A) showed more trabecular bone and higher BIC compared to the other 2 groups. Histologically, the results in this study showed that use of conventionally available rhPDGF-BB formulation as the implant surface treatment may accelerate the process of osseointegration and enhance BIC.
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Affiliation(s)
- Khalid Al-Hezaimi
- 1 Department of Periodontology, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
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15
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Calvo-Guirado JL, López-López PJ, Maté Sánchez de Val JE, Mareque-Bueno J, Delgado-Ruiz RA, Romanos GE. Influence of collar design on peri-implant tissue healing around immediate implants: A pilot study in Foxhound dogs. Clin Oral Implants Res 2014; 26:851-7. [PMID: 24684309 DOI: 10.1111/clr.12374] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2014] [Indexed: 11/28/2022]
Abstract
PURPOSE The study aims to assess the soft tissue level (STL) and crestal bone level (CBL), of titanium dental implants with different mixed collar abutments configurations. MATERIALS AND METHODS This study included 48 implants with the same dimensions. They were divided into two groups of 24 implants each one: implants with a polished collar of 2 mm plus a roughened area of 0.8 mm (CONTROL) and implants with a polished collar of 0.8 mm plus a micro-threated and roughened area of 2 mm (TEST). The implants were inserted randomly in the post-extraction sockets of P2, P3, P4, and M1 bilaterally in the lower jaw of six foxhound dogs. STL and CBL were evaluated after 8 and 12 weeks by histology and histometry. RESULTS All implants were clinically and histologically osseointegrated. Healing patterns examined microscopically at 8 and 12 weeks for both groups yielded similar qualitative findings for the STL evaluation, without significant differences between groups (P > 0.05). CBL was significantly higher in the buccal side in comparison with the lingual side for both groups (P < 0.05); the comparison between groups at 8 weeks showed IS-B (distance from the implant shoulder to the top of the bony crest) and IS-C (distance from the implant shoulder to the first bone-to-implant contact) values significantly higher for control group in comparison with test (P < 0.05). At 12 weeks, CBL showed increased values for both groups that were higher in controls group in comparison with test (P < 0.05). CONCLUSIONS Bony crest resorption could not be avoided both at test and control sites. However, the neck conformation at the test sites reduced the buccal bone resorption. Soft tissue dimensions were similar both at the test and control sites.
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16
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Calvo-Guirado JL, López-López PJ, Mate Sanchez JE, Gargallo Albiol J, Velasco Ortega E, Delgado Ruiz R. Crestal bone loss related to immediate implants in crestal and subcrestal position: a pilot study in dogs. Clin Oral Implants Res 2013; 25:1286-1294. [DOI: 10.1111/clr.12267] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/25/2013] [Indexed: 12/01/2022]
Affiliation(s)
- Jose Luis Calvo-Guirado
- Department of General and Implant Dentistry; Faculty of Medicine and Dentistry; University of Murcia; Murcia Spain
| | - Patricia Jara López-López
- Department of General and Implant Dentistry; Faculty of Medicine and Dentistry; University of Murcia; Murcia Spain
| | - Jose Eduardo Mate Sanchez
- Department of General and Implant Dentistry; Faculty of Medicine and Dentistry; University of Murcia; Murcia Spain
| | - Jordi Gargallo Albiol
- Department of Implant Dentistry; International University of Catalonia; Barcelona Spain
| | - Eugenio Velasco Ortega
- Department Of General Dentistry; Faculty of Dentistry; University of Seville; Seville Spain
| | - Rafael Delgado Ruiz
- Department of Prosthodontics and Digital Technologies; Stony Brook University; New York NY USA
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17
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Manresa C, Bosch M, Echeverría JJ. The comparison between implant stability quotient and bone-implant contact revisited: an experiment in Beagle dog. Clin Oral Implants Res 2013; 25:1213-1221. [PMID: 24102812 DOI: 10.1111/clr.12256] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND Resonance frequency analysis (RFA) is applied clinically for the assessment of implant stability, and the relevance of this application is widely accepted. However, the relationship between resonance frequency (RF) and other parameters of implant stability, such as the histomorphometrical bone-to-implant contact (BIC) parameter, has become controversial in the last decade. OBJECTIVE To analyse and clarify the controversial relationship between RF and histomorphometrical BIC measurements. MATERIAL AND METHODS A total of 36 dental implants (9 mm length, Ø 4.0 mm; Biohorizons(®) Implant Systems Inc., Birmingham, AL, USA) with a soluble blasting media (sandblasting with soluble particles) surface were implanted in six beagle dog mandibles. RFA assessments were performed with a magnetic Osstel Mentor(®) device at the time of implant installation, and during the monitoring period at weeks 1, 2, 4, 6 and 8, before implant retrieval. The dogs were sacrificed and the implants were removed in block after 8, 6, 4, 2, 1 and 0 weeks, respectively. One group was obtained at time 0, immediately after the implantation. The samples were embedded in methyl methacrylate polymers (Technovit(®) ) and cut along their long axis. BIC values were assessed by a non-subjective and systematic method based on backscattered scanning electron microscopy (BS-SEM) images. BIC% at the different time points was compared with the corresponding implant stability quotient (ISQ) values of the RFA assessment. RESULTS No statistically significant correlation between BIC and ISQ values (Osstell Mentor(®) ) was identified. The absence of a relationship between these two parameters is in agreement with several previous studies in humans and experimental animals. CONCLUSIONS The lack of correlation between BIC and ISQ values suggests that ISQ as determined by RFA is not able to identify the relationship between RF and histomorphometrical data.
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Affiliation(s)
- Carolina Manresa
- Departament d'Odontoestomatologia, Odontologia Integrada d'Adults, Facultat d'Odontologia, Campus de Bellvitge, Universitat de Barcelona, Barcelona, Spain
| | - Manel Bosch
- Unitat de Microscòpia Òptica Avançada, Centres Científics i Tecnològics de la Universitat de Barcelona (CCiTUB), Barcelona, Spain
| | - José J Echeverría
- Departament d'Odontoestomatologia, Odontologia Integrada d'Adults, Facultat d'Odontologia, Campus de Bellvitge, Universitat de Barcelona, Barcelona, Spain
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18
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Manresa C, Bosch M, Manzanares MC, Carvalho P, Echeverría JJ. A new standardized-automatic method for bone-to-implant contact histomorphometric analysis based on backscattered scanning electron microscopy images. Clin Oral Implants Res 2013; 25:702-6. [DOI: 10.1111/clr.12129] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2012] [Indexed: 11/30/2022]
Affiliation(s)
- Carolina Manresa
- Departament d'Odontoestomatologia, Odontologia Integrada d'Adults; Facultat d'Odontologia; Universitat de Barcelona; Barcelona Spain
| | - Manel Bosch
- Unitat de Microscòpia Òptica Avançada; Centres Científics i Tecnològics de la Universitat de Barcelona (CCiTUB); Barcelona Spain
| | - María Cristina Manzanares
- Human Anatomy and Embryology Unit, DPyTEx; Health Universitat de Barcelona Campus (HUBc); Barcelona Spain
| | - Patricia Carvalho
- Human Anatomy and Embryology Unit, DPyTEx; Health Universitat de Barcelona Campus (HUBc); Barcelona Spain
| | - José Javier Echeverría
- Departament d'Odontoestomatologia, Odontologia Integrada d'Adults; Facultat d'Odontologia; Universitat de Barcelona; Barcelona Spain
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