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de Oliveira GJPL, Fontanari LA, de Souza JAC, Spin-Neto R, Elias CN, Marcantonio E, Orrico SRP. Fluoride-modified implant surfaces improves osseointegration in the tibias of rats with induced diabetes. Braz Dent J 2023; 34:43-52. [PMID: 38133472 PMCID: PMC10759961 DOI: 10.1590/0103-6440202305439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 11/13/2023] [Indexed: 12/23/2023] Open
Abstract
This study evaluated the influence of a fluoride-modified titanium surface on osseointegration in rats with induced diabetes. One hundred and eighty rats were randomly allocated into 3 groups with 60 animals each: Control group (C): Animals without diabetes; Diabetes Group (D): Animals with uncontrolled induced diabetes; Controlled Diabetes Group (CD): Animals with diabetes induced controlled by the insulin administration. Diabetes was induced by streptozotocin injection. Each animal received 2 implants in the proximal tibial metaphysis, one with the machined surface (M) and the other one with a fluoride-modified titanium surface (F), after 4 weeks of induction of diabetes. The animals were submitted to euthanasia 2, 4, and 6 weeks after the implant placement (n = 20 animals/group). The osseointegration was evaluated by the implant removal torque test and the histometric analysis of the non-decalcified histological sections: 1) Contact bone/implant (%BIC); 2) Bone tissue area between implant threads (%BBT). Implants with F surface showed a higher removal torque than implants with surface M in all groups. There was no difference in %BIC between the groups regardless of the surface used. The F surface showed a tendency to present higher %BBT values for the 3 evaluation periods in the D group. The fluoride-modified implant surface has no impact on the %BIC and %BBT. However, the fluoride-modified implant surface increases the locking of the implants with the bone. The hyperglycemia was associated with lower removal torque values despite the surfaces of the implant used.
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Affiliation(s)
- Guilherme José Pimentel Lopes de Oliveira
- Department of Periodontology, UNESP - Univ. Estadual Paulista, Araraquara Dental School, Araraquara, São Paulo, Brazil
- Department of Odontology, UFU - Univ. Federal de Uberlândia, Uberlândia, Brazil
| | - Lucas Amaral Fontanari
- Department of Periodontology, UNESP - Univ. Estadual Paulista, Araraquara Dental School, Araraquara, São Paulo, Brazil
| | | | - Rubens Spin-Neto
- Department of Dentistry - Oral Radiology, Aarhus University, Aarhus, Denmark
| | - Carlos Nelson Elias
- Biomaterials Laboratory, Instituto Militar de Engenharia, Rio de Janeiro, Rio de Janeiro, Brazil
- Advanced Research Center in Medicine , Union of the Colleges of the Great Lakes (UNILAGO), São José do Rio Preto, Brazil
| | - Elcio Marcantonio
- Department of Periodontology, UNESP - Univ. Estadual Paulista, Araraquara Dental School, Araraquara, São Paulo, Brazil
| | - Silvana Regina Perez Orrico
- Department of Periodontology, UNESP - Univ. Estadual Paulista, Araraquara Dental School, Araraquara, São Paulo, Brazil
- Advanced Research Center in Medicine , Union of the Colleges of the Great Lakes (UNILAGO), São José do Rio Preto, Brazil
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Maquera-Huacho PM, de Carvalho GG, Jafelicci M, Marcantonio E, Spolidorio DMP. Physical-chemical influences and cell behavior of natural compounds on titanium dental surfaces. Braz Dent J 2023; 34:53-62. [PMID: 38133473 PMCID: PMC10759949 DOI: 10.1590/0103-6440202305582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 10/30/2023] [Indexed: 12/23/2023] Open
Abstract
The present study evaluated the influence of carvacrol, terpinene-4-ol, and chlorhexidine on the physical-chemical properties of titanium surfaces, cell viability, proliferation, adhesion, and spreading of fibroblasts and osteoblasts in vitro. Titanium surfaces (Ti) were treated with Carvacrol (Cvc), Terpinen-4-ol (T4ol), Chlorhexidine (CHX), DMSO, and ultrapure water (Control group). Physical-chemical modifications were evaluated by surface wettability, the surface free energy (SFE) calculated from the contact angle values using the Owens-Wendt-Rabel-Kaeble (OWRK) equation, scanning electron microscopy (SEM) and energy dispersive spectrometry probe (EDS) system. Cells were seeded onto Ti-treated surfaces and incubated for 24 h and 72 h, then evaluated by Alamar blue assay and fluorescence microscopy. Surfaces treated with Cvc and T4ol showed the presence of Na, O, and Cl. All surfaces showed hydrophilic characteristics and SFE values between 5.5 mN/m and 3.4 mN/m. On the other hand, EDS peaks demonstrated the presence of O and Cl after CHX treatment. A reduction of cell viability and adhesion was noted on titanium surfaces treated with CHX after 24 and 72h. In conclusion, the results indicate that the decontamination with Cvc and T4ol on Ti surfaces does not alter the surface proprieties and allows an adequate interaction with cells involved in the re-osseointegration process such as fibroblasts and osteoblasts.
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Affiliation(s)
- Patricia Milagros Maquera-Huacho
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University(Unesp), Araraquara, SP, Brazil
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University(Unesp), Araraquara, São Paulo, Brazil
| | - Gabriel Garcia de Carvalho
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University(Unesp), Araraquara, SP, Brazil
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University(Unesp), Araraquara, São Paulo, Brazil
| | - Miguel Jafelicci
- Institute of Chemistry, Laboratory of Magnetic Materials and Colloids, São Paulo State University(Unesp), Araraquara, SP, Brazil
| | - Elcio Marcantonio
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University(Unesp), Araraquara, São Paulo, Brazil
| | - Denise Madalena Palomari Spolidorio
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University(Unesp), Araraquara, SP, Brazil
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University(Unesp), Araraquara, São Paulo, Brazil
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de Almeida Malzoni CM, Pichotano EC, Freitas de Paula LG, de Souza RV, Okamoto R, Austin RS, Marcantonio E, de Molon RS, Zandim-Barcelos DL. Combination of leukocyte and platelet-rich fibrin and demineralized bovine bone graft enhanced bone formation and healing after maxillary sinus augmentation: a randomized clinical trial. Clin Oral Investig 2023; 27:5485-5498. [PMID: 37580431 DOI: 10.1007/s00784-023-05167-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 07/13/2023] [Indexed: 08/16/2023]
Abstract
BACKGROUND AND OBJECTIVE The resorption of alveolar ridge bone and maxillary sinus pneumatization are challenges to implant-supported prosthetic rehabilitation. Bone regeneration using bone substitutes and growth factors are alternatives for maxillary sinus augmentation (MSA). Therefore, we sought to evaluate the effects of the association between leukocyte and platelet-rich fibrin (L-PRF) and deproteinized bovine bone mineral (DBBM) in MSA procedures. MATERIALS AND METHODS Thirty-six maxillary sinuses from 24 individuals were included in this randomized clinical trial. The maxillary sinuses were randomly grafted with LPRF and DBBM (test group) or grafted only with DBBM (positive control). Dental implants were installed in the test group following two periods of evaluation: after 4 (DBBM+LPRF4) and 8 (DBBM+LPFR8) months of sinus graft healing, while the control group received implants only after 8 months. Cone beam computed tomography (CBCT) was taken 1 week after surgery (T1) and before implant placement (T2). Bone samples were collected during implant placement for histomorphometric and immunohistochemical (IHC) analysis. The primary implant stability was assessed by resonance frequency analysis. RESULTS CBCT analysis demonstrated a significant decrease in bone volume from T1 to T2 in all groups without differences among them. Histologically, the test group showed significantly increase in bone neoformation in both periods of evaluation (LPRF+DBBM4: 44.70±14.01%; LPRF+DBBM8: 46.56±12.25%) compared to the control group (32.34±9.49%). The control group showed the highest percentage of residual graft. IHC analysis showed increased staining intensity of osteocalcin (OCN), vascular endothelial growth factor (VEGF), and runt related transcription factor 2 (RUNX-2) in LPRF+DBBM4 group, and osteopontin (OPN) in the L-PRF+DBBM8. Primary implant stability was successfully achieved (above 60 in implant stability quotient) in all the evaluated groups. CONCLUSION Combination of L-PRF and DBBM increased and accelerated new bone formation allowing early implant placement probably due to the higher protein expression of RUNX2, VEGF, OCN, and OPN. These data suggest that the use of L-PRF might be an interesting alternative to use in combination with DBBM for augment the maxillary sinuses allowing the installation of appropriate length implants in shorter period of time. CLINICAL RELEVANCE This study showed improvement in bone neoformation and accelerated healing when associating L-PRF and DBBM for maxillary sinus augmentation procedures. TRIAL REGISTRATION This study was registered before participant recruitment in Brazilian Registry of Clinical Trials (ReBEC - RBR-95m73t).
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Affiliation(s)
- Carolina Mendonça de Almeida Malzoni
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, São Paulo State University - UNESP, Rua Humaitá, 1680, Araraquara, SP, 14801-903, Brazil
| | - Elton Carlos Pichotano
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, São Paulo State University - UNESP, Rua Humaitá, 1680, Araraquara, SP, 14801-903, Brazil
| | - Luiz Guilherme Freitas de Paula
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, São Paulo State University - UNESP, Rua Humaitá, 1680, Araraquara, SP, 14801-903, Brazil
| | - Ricardo Violante de Souza
- Private practice, School of Medicine of Ribeirão Preto, Sao Paulo University - USP, Ribeirao Preto, Sao Paulo, 14040-904, Brazil
| | - Roberta Okamoto
- Department of Basic Sciences, School of Dentistry at Araçatuba, São Paulo State University - UNESP, Araçatuba, SP, 16015-050, Brazil
| | - Rupert S Austin
- Tissue Engineering and Biophotonics, King's College London Dental Institute, Guy's Hospital, London, UK
| | - Elcio Marcantonio
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, São Paulo State University - UNESP, Rua Humaitá, 1680, Araraquara, SP, 14801-903, Brazil
| | - Rafael Scaf de Molon
- Department of Diagnosis and Surgery, School of Dentistry at Araçatuba, Sao Paulo State University - UNESP, Rua Jose Bonifacio, 1193, Vila Mendonça, Araçatuba, SP, 16015-050, Brazil.
| | - Daniela Leal Zandim-Barcelos
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, São Paulo State University - UNESP, Rua Humaitá, 1680, Araraquara, SP, 14801-903, Brazil.
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Pinto GDCS, dos Reis IAR, Leocádio ADCS, Silva M, Faeda RS, de Oliveira GJPL, Marcantonio E. Evaluation of hydrophilic surface osseointegration in low-density bone: Preclinical study in rabbits. Braz Dent J 2023; 34:66-72. [PMID: 37466527 PMCID: PMC10355257 DOI: 10.1590/0103-6440202305352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/26/2023] [Indexed: 07/20/2023] Open
Abstract
The aim of this study was to evaluate the osseointegration of a hydrophilic surface (blasting + acid etching + immersion in isotonic solution) in comparison with that of a control surface (blasting + acid etching) using an experimental model of low-density bone. To perform the study, 24 rabbits were submitted to the installation of 4 implants in the iliac bone bilaterally: 2 implants with a control surface and 2 implants with a hydrophilic surface. The rabbits were euthanized at 2, 4, and 8 weeks after implant installation. After euthanasia, one implant from each surface was used to perform the removal torque analysis, and the other implant was used for the execution of non-decalcified histological sections and evaluation of the bone implant contact (% BIC) as well as the fraction of bone tissue area between the implant threads (% BBT). The implants with a hydrophilic surface presented higher %BIC (42.92 ± 2.85% vs. 29.49 ± 10.27%) and % BBT (34.32 ± 8.52% vs. 23.20 ± 6.75%) (p < 0.05) in the 2-week period. Furthermore, the hydrophilic surface presented higher removal torque in the 8-week period (76.13 ± 16.00 Ncm2 vs. 52.77 ± 13.49 Ncm2) (p<0.05). Implants with a hydrophilic surface exhibited acceleration in the process of osseointegration, culminating in greater secondary stability in low-density bone than in implants with a control surface.
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Affiliation(s)
- Gustavo da Col Santos Pinto
- São Paulo State University (Unesp), School of Dentistry,
Araraquara, Department of Diagnosis and Surgery, Araraquara, Brazil
| | | | | | - Matusalem Silva
- Instituto Latino-americano de pesquisa odontológica (ILAPEO),
Curitiba, Brazil
| | - Rafael Silveira Faeda
- University of Araraquara (Uniara), School of Dentistry,
Post-graduation im Implantology, Araraquara, Brazil
| | | | - Elcio Marcantonio
- São Paulo State University (Unesp), School of Dentistry,
Araraquara, Department of Diagnosis and Surgery, Araraquara, Brazil
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Guastaldi FPS, Matheus HR, Faloni APDS, de Almeida-Filho E, Cominotte MA, Moretti LAC, Verzola MHA, Marcantonio E, de Almeida JM, Guastaldi AC, Cirelli JA. A new multiphase calcium phosphate graft material improves bone healing-An in vitro and in vivo analysis. J Biomed Mater Res B Appl Biomater 2022; 110:2686-2704. [PMID: 35779277 DOI: 10.1002/jbm.b.35121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 06/14/2022] [Accepted: 06/17/2022] [Indexed: 12/15/2022]
Abstract
This study aims to evaluate the potential of a novel biomaterial synthesized from amorphous calcium phosphate (ACP), octacalcium phosphate (OCP), and hydroxyapatite (HA) to repair critical-sized defects (CSD) in rabbit calvaria. In vitro analyses of cell viability, cell proliferation, formation of mineral nodules, and cell differentiation using qPCR were performed for comparing experimental calcium phosphate (ECP), deproteinized bovine bone (DBB), and beta-tricalcium phosphate (β-TCP). Bilateral CSDs were created in 45 rabbit calvaria. Six groups were evaluated: ECP, ECP + fibrin sealant (ECP + S), coagulum, autogenous bone, DBB, and β-TCP. Euthanasia was performed at 2, 4, and 8 weeks, followed by micro-computed tomography and histological and immunohistochemical analyses. Results from in vitro analyses revealed similar biocompatibility for all tested materials and a tendency for higher gene expression of some bone markers in the ECP group than in β-TCP and DBB groups at 7 days. In contrast to that in DBB and β-TCP groups, ECP displayed growing bone volume over total volume percentage (BV/TV%) with time in vivo. Histological analysis revealed a greater number of giant cells and reduced size of grafted particles in ECP during all periods of analysis. RUNX-2 expression was statistically lower in ECP than DBB at 2 and 4 weeks. Despite no statistical significance, ECP presented the highest absolute values for ALP-expression at 2, 4, and 8 weeks compared with other groups. Together, our findings indicate that a combination of the ACP, OCP, and HA phases into ECP is beneficial and promising for bone regeneration.
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Affiliation(s)
- Fernando Pozzi Semeghini Guastaldi
- Department of Diagnosis and Surgery, São Paulo State University (Unesp), School of Dentistry, São Paulo, Brazil.,Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Henrique Rinaldi Matheus
- Department of Diagnosis and Surgery, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Ana Paula de Souza Faloni
- Department of Health Sciences, University Center of Araraquara (UNIARA), Araraquara, São Paulo, Brazil
| | - Edson de Almeida-Filho
- Department of Physical Chemistry, São Paulo State University (Unesp), Institute of Chemistry, Araraquara, São Paulo, Brazil
| | - Mariana Aline Cominotte
- Department of Diagnosis and Surgery, São Paulo State University (Unesp), School of Dentistry, São Paulo, Brazil
| | - Livia Alves Correa Moretti
- Department of Diagnosis and Surgery, São Paulo State University (Unesp), School of Dentistry, São Paulo, Brazil
| | | | - Elcio Marcantonio
- Department of Diagnosis and Surgery, São Paulo State University (Unesp), School of Dentistry, São Paulo, Brazil
| | - Juliano Milanezi de Almeida
- Department of Diagnosis and Surgery, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Antonio Carlos Guastaldi
- Department of Physical Chemistry, São Paulo State University (Unesp), Institute of Chemistry, Araraquara, São Paulo, Brazil
| | - Joni Augusto Cirelli
- Department of Diagnosis and Surgery, São Paulo State University (Unesp), School of Dentistry, São Paulo, Brazil
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Pinotti FE, Aron MAT, de Oliveira GJPL, Marcantonio E, Marcantonio RAC. Implants with hydrophilic surfaces equalize the osseointegration of implants in normo- and hyperglycaemic rats. Braz Dent J 2022; 33:71-77. [PMID: 36477967 PMCID: PMC9733365 DOI: 10.1590/0103-6440202204793] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 07/12/2022] [Indexed: 12/12/2022] Open
Abstract
The purpose of this study was to evaluate the effect of a surface modified by blasting and acid attack and maintained in an isotonic solution compared to a machined surface on osseointegration in normo- and hyperglycaemic animals. Sixty-four animals were allocated into 4 groups with 16 animals each, and they were subdivided into two experimental periods (15 and 45 days), with 8 animals in each group. The groups were divided according to the type of implant that was installed in the animals' tibia and the animals' systemic condition: CM - Machined implants placed in Healthy animals; CH - Hydrophilic implants placed in Healthy animals, HM - Machined implants placed in animals with hyperglycaemia; HH- Hydrophilic implants installed in animals with hyperglycaemia. The following analyses were performed: biomechanical (removal torque), microtomographic (evaluation of the bone volume around the implants- BV/TV), and histomorphometric (evaluation of bone-implant contact BIC% and of the bone formation area between the threads BBT%). It was found that the implants with hydrophilic surfaces presented higher removal torques and quantities of BV/TV% and higher BIC% and BBT% values in normo- and hyperglycaemic animals. The results of this study indicated that the hydrophilic surface accelerates the osseointegration process (~ 15% BIC/BBT at 15-day period), especially in animals with hyperglycaemia. The hydrophilic surface equaled the osseointegration between normo- and hyperglycaemic animals, reversing the negative potential of hyperglycaemia on the osseointegration process.
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Affiliation(s)
- Felipe Eduardo Pinotti
- Department of Diagnosis and Surgery, São Paulo State University(Unesp), School of Dentistry, Araraquara, Brazil
| | | | | | - Elcio Marcantonio
- Department of Diagnosis and Surgery, São Paulo State University(Unesp), School of Dentistry, Araraquara, Brazil
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De Fátima Balderrama Í, Ferreira R, De Lima HG, Marcantonio ACM, Marcantonio E. ORAL LESIONS AROUND DENTAL IMPLANTS: A CRITICAL LITERATURE REVIEW. Oral Surg Oral Med Oral Pathol Oral Radiol 2022. [DOI: 10.1016/j.oooo.2022.01.752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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8
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De Fátima Balderrama Í, Ferreira R, Spin JR, De Lima HG, Marcantonio ACM, Marcantonio E. THE ASSOCIATION BETWEEN DENTAL IMPLANTS REHABILITATION AND PATIENTS WITH ORAL LICHEN PLANUS: AN INTEGRATIVE REVIEW. Oral Surg Oral Med Oral Pathol Oral Radiol 2022. [DOI: 10.1016/j.oooo.2022.01.753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Frizzera F, Spin-Neto R, Padilha V, Nicchio N, Ghiraldini B, Bezerra F, Marcantonio E. Effect of osseodensification on the increase in ridge thickness and the prevention of buccal peri-implant defects: an in vitro randomized split mouth pilot study. BMC Oral Health 2022; 22:233. [PMID: 35698117 PMCID: PMC9195241 DOI: 10.1186/s12903-022-02242-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 05/19/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Implant installation with conventional drilling can create buccal bone defects in areas of limited ridge thickness. Implant installation with osseodensification may aid in preventing buccal bone defects in these situations. This in vitro pilot study evaluated the impact of osseodensification on the increase in alveolar ridge thickness and the prevention of buccal peri-implant defects. METHODS Ten fresh pig mandibles with limited bone thickness were selected for use in an experimental randomized split mouth pilot study. Two site-preparation protocols were used: conventional drilling with cutting burs (CTL, n = 10) and osseodensification with Densah® burs (OD, n = 10). After implant bed preparation, 20 implants (4.5 × 10 mm) were placed in the prepared sites and the insertion torque was recorded. Clinical and photographic analysis evaluated ridge thickness and the extent (height, width, and area) of bone defects in the buccal and lingual bone walls following implant placement. Three-dimensional measurements were performed using STL files to analyze the increase in buccal ridge thickness following site preparation and implant placement. The height of the buccal bone defect was considered as the primary outcome of this study. Defect width, area, implant insertion torque, and linear buccal ridge increase after implant site preparation and installation were also assessed. Non-parametric evaluations were carried out with the Mann-Whitney test to verify intergroup differences. RESULTS There was no statistically significant difference between groups in the baseline ridge thickness. OD presented a significantly higher insertion torque, associated with reduced buccal and lingual bone defect width, in comparison to CTL. CONCLUSIONS The increase in buccal ridge thickness after site preparation and implant placement was significantly higher in OD compared to CTL. Osseodensification increased the ridge thickness through expansion and reduced buccal bone defects after implant installation.
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Affiliation(s)
| | - Rubens Spin-Neto
- Aarhus University, Department of Dentistry and Oral Health, Aarhus, Denmark
| | - Victor Padilha
- Brazilian Dental Association at Espírito Santo, Serra, Brazil
| | - Nicolas Nicchio
- São Paulo State University (UNESP), School of Dentistry, Department of Diagnostic and Surgery, Araraquara, Brazil
| | - Bruna Ghiraldini
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, Brazil
| | - Fábio Bezerra
- São Paulo State University (UNESP), Department of Chemical and Biological Sciences, Institute of Biosciences, Botucatu, Brazil
| | - Elcio Marcantonio
- São Paulo State University (UNESP), School of Dentistry, Department of Diagnostic and Surgery, Araraquara, Brazil
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10
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Quiroz VF, Lima JR, Pinotti FE, Marcantonio RA, Marcantonio E, Oliveira GJ. Comparison of osseointegration in areas grafted with deproteinized bovine bone and native bone. A preclinical study. Acta Odontol Latinoam 2022; 35:3-9. [PMID: 35700535 DOI: 10.54589/aol.35/1/3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 02/01/2022] [Indexed: 06/15/2023]
Abstract
The aim of this study was to evaluate the osseointegration of implants placed in rat tibia sites grafted with Deproteinized Bovine Bone (DBB) and Native Bone (NB). Twenty-eight rats were divided into two groups according to the type of substrate in which the implants were to be placed: NB - implants placed in native bone; DBB - implants placed in areas grafted with DBB. In the DBB group, the bone defect was made and filled with the bone substitute 60 days before placing the implant. The animals were euthanized 15 or 45 days after implant placement. Osseointegration was assessed by the removal torque, volume of mineralized tissues around the implants (BV/TV), bone-implant contact (%BIC), and bone between threads (%BBT). The implants placed in NB presented higher removal torque (8.00 ± 1.26 Ncm vs. 2.33 ± 0.41 Ncm at 15 days and 22.00 ± 2.44 Ncm vs. 4.00 ± 1.41 Ncm at 45 days), higher %BV/TV (47.92 ± 1.54% vs. 33.33 ± 4.77% at 15 days and 70.06 ± 0.91% vs. 39.89±5.90%at 45 days), higher %BIC (39.68 ± 5.02% vs. 9.12 ± 5.56% at 15 days and 83.23 ± 4.42% vs. 18.81 ± 7.21% at 45 days), and higher %BBT (34.33 ± 5.42% vs. 13.24 ± 8.72% at 15 days and 82.33 ± 3.13% vs. 22.26 ± 8.27% at 45 days) than the implants placed in DBB grafted areas. The degree of osseointegration was lower in implants placed in the area grafted with DBB than in NB in rat tibias.
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Affiliation(s)
- Victor F Quiroz
- Universidade Federal de Uberlândia, Faculdade de Odontologia, Departamento de Periodontía e Implantodontia, Uberlândia, Brasil
| | - Júlia R Lima
- Universidade Federal de Uberlândia, Faculdade de Odontologia, Departamento de Periodontía e Implantodontia, Uberlândia, Brasil
| | - Felipe E Pinotti
- Universidade de Araraquara, Faculdade de Odontologia, Departamento de Diagnostico e Cirurgía, Araraquara, Brasil
| | - Rosemary Ac Marcantonio
- Universidade de Araraquara, Faculdade de Odontologia, Departamento de Diagnostico e Cirurgía, Araraquara, Brasil
| | - Elcio Marcantonio
- Universidade de Araraquara, Faculdade de Odontologia, Departamento de Diagnostico e Cirurgía, Araraquara, Brasil
| | - Guilherme Jpl Oliveira
- Universidade Federal de Uberlândia, Faculdade de Odontologia, Departamento de Periodontía e Implantodontia, Uberlândia, Brasil.
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11
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Barros-Filho LA, de Oliveira GJ, Barros LA, Marcantonio E. Retrospective evaluation about morse taper versus external hexagon implants placed after maxillary sinus lift. Minerva Dent Oral Sci 2021; 71:10-15. [PMID: 34132507 DOI: 10.23736/s2724-6329.21.04533-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND The objective of this study was to retrospectively evaluate the success and survival rate of implants with different types of prosthetic connections inserted in the posterior maxilla in native bone or in sinuses previously grafted with different biomaterials. METHODS A total of 310 implants inserted in 113 patients were evaluated, 87 of which were inserted in association with grafted maxillary sinuses (56 morse taper (MT) implants and 31 external hexagon (EH) implants) in 37 patients, and 223 implants were inserted in native bone areas (112 MT and 111 EH implants) in 76 patients. Peri-implant clinical analyses were performed (bleeding on probing, probing depth, clinical insertion level, peri-implant marginal level, and the presence of mobility or suppuration), and the radiographic bone level was evaluated. RESULTS Two implants were lost, yielding a survival rate of 99.35 %. The MT implants had lower probing depths and peri-implant bone levels than the EH implants in both grafted areas and native bone areas (p <0.05). No statistically significant differences in any parameter evaluated were found between implants inserted in native bone and those inserted in grafting areas. EH implants inserted in native bone areas showed higher periimplantitis rates. CONCLUSIONS It can be concluded that the MT implants connection reduce periimplant bone loss, but implants inserted in maxillary sinuses previously grafted with osteoconductive biomaterials do not predispose patients to peri-implant bone loss.
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Affiliation(s)
- Luiz A Barros-Filho
- Department of Diagnosis and Surgery, Univ. Est. Paul. - UNESP, Araraquara, Brazil
| | - Guilherme J de Oliveira
- Department of Periodontology/Implantology, Dental School, Federal University of Uberlândia - UFU, Uberlândia, Brazil
| | - Luiz A Barros
- Department of Diagnosis and Surgery, Univ. Est. Paul. - UNESP, Araraquara, Brazil
| | - Elcio Marcantonio
- Department of Diagnosis and Surgery, Univ. Est. Paul. - UNESP, Araraquara, Brazil -
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Oliveira GJPLD, Pinotti FE, Aroni MAT, Marcantonio E, Marcantonio RAC. Effect of different low-level intensity laser therapy (LLLT) irradiation protocols on the osseointegration of implants placed in grafted areas. J Appl Oral Sci 2021; 29:e20200647. [PMID: 33886940 PMCID: PMC8054649 DOI: 10.1590/1678-7757-2020-0647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 01/15/2021] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE To evaluate the effect of different protocols of low-level intensity laser therapy (LLLT) irradiation on the osseointegration of implants placed in grafted areas. METHODOLOGY 84 rats were randomly allocated into six groups: DBB: defect filled with deproteinized bovine bone; HA/TCP: defect filled with biphasic ceramic of hydroxyapatite/β-tricalcium phosphate ; DBB-LI: defect filled with DBB and treated with LLLT after implant placement; HA/TCP-LI: defect filled with HA/TCP and treated with LLLT after implant placement; DBB-LIB: defect filled with DBB and treated with LLLT after graft procedure and implant placement; and HA/TCP-LIB: defect filled HA/TCP and treated with LLLT after graft procedure and implant placement. The bone defects were made in the tibia and they were grafted. After 60 days, the implants were placed. The rats were subsequently subjected to euthanasia 15 and 45 days after implant placement. The pattern of osseointegration and bone repair in the grafted area was evaluated by biomechanical, microtomographic, and histometric analyses. Furthermore, the expression of bone biomarker proteins was assessed. RESULTS The LLLT groups presented higher removal torque, mineralized tissue volume, and a greater degree of osseointegration, especially when LLLT was performed only after implant placement, and these findings were associated with higher expression of BMP2 and alkaline phosphatase. CONCLUSION LLLT performed on implants placed in grafted areas enhances the osseointegration process.
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Affiliation(s)
| | - Felipe Eduardo Pinotti
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araraquara, Departmento de Diagnóstico e Cirurgia, Araraquara, SP, Brasil
| | | | - Elcio Marcantonio
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araraquara, Departmento de Diagnóstico e Cirurgia, Araraquara, SP, Brasil
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de Almeida Malzoni CM, Nícoli LG, da Col Dos Santos Pinto G, Pigossi SC, Zotesso VA, Verzola MHA, Marcantonio C, Gonçalves V, Zandim-Barcelos DL, Marcantonio E. The Effectiveness of L-PRF in the Treatment of Schneiderian Membrane Large Perforations: Long-Term Follow-Up of a Case Series. J ORAL IMPLANTOL 2021; 47:31-35. [PMID: 32662834 DOI: 10.1563/aaid-joi-d-20-00044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The perforation of the Schneiderian membrane (SM) is a common surgical complication during the sinus floor augmentation (SFA) procedure. Different approaches have been proposed to completely closer the SM perforation and to avoid graft contamination or migration and postoperative sinus infection. In this context, the leukocyte and platelet-rich fibrin (L-PRF) membranes have been proposed for SM perforation treatment because of their natural adhesive property and resistance. Thus, this case series aims to evaluate the effectiveness of L-PRF in the treatment of SM large perforations during SFA. A total of 9 SM perforations were treated in this case series. The L-PRF membranes were interposed on the perforated SM until the rupture could not be visualized. The maxillary sinus cavities were filled with deproteinized bovine mineral bone (Bio-oss, Geistlich, Switzerland), and a collagen membrane was positioned to cover the lateral access window. After 8 months, 13 implants were placed, achieving satisfactory primary stability. The osseointegration of all implants and absence of infection signs/mucus in the maxillary sinus were observed in cone beam computed tomography or panoramic radiography qualitative analysis after 3-5 years of follow-up. It can be concluded that the use of L-PRF can be considered a viable alternative for the repair of large SM perforations.
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Affiliation(s)
| | - Lélis Gustavo Nícoli
- Department of Clinic and Surgery, School of Dentistry, Alfenas Federal University (Unifal-MG), Alfenas, Minas Gerais, Brazil
| | - Gustavo da Col Dos Santos Pinto
- Department of Clinic and Surgery, School of Dentistry, Alfenas Federal University (Unifal-MG), Alfenas, Minas Gerais, Brazil
| | - Suzane Cristina Pigossi
- Department of Clinic and Surgery, School of Dentistry, Alfenas Federal University (Unifal-MG), Alfenas, Minas Gerais, Brazil
| | | | | | - Cláudio Marcantonio
- Dental Graduate Program, Universidade de Araraquara-UNIARA, Araraquara, SP, Brazil
| | - Victor Gonçalves
- Department of Diagnosis and Surgery, School of Dentristry at Araraquara, São Paulo Sate University-UNESP, Araraquara, SP, Brazil
| | - Daniela Leal Zandim-Barcelos
- Department of Diagnosis and Surgery, School of Dentristry at Araraquara, São Paulo Sate University-UNESP, Araraquara, SP, Brazil
| | - Elcio Marcantonio
- Department of Diagnosis and Surgery, School of Dentristry at Araraquara, São Paulo Sate University-UNESP, Araraquara, SP, Brazil
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Pignaton TB, Spin-Neto R, Ferreira CEDA, Martinelli CB, de Oliveira GJPL, Marcantonio E. Remodelling of sinus bone grafts according to the distance from the native bone: A histomorphometric analysis. Clin Oral Implants Res 2020; 31:959-967. [PMID: 32716570 DOI: 10.1111/clr.13639] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 07/16/2020] [Accepted: 07/19/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVES To evaluate graft remodelling according to the distance from the native bone in maxillary sinuses grafted with anorganic bovine bone (ABB). MATERIAL AND METHODS Bilateral sinus grafting was performed in twenty patients with residual bone height <5 mm before implant placement. After 8 months, biopsy samples were harvested, and histomorphometric analysis was performed to examine bone formation according to the distance (in mm) from the native bone (sinus floor). In the grafted area, the percentages of new bone (NB), residual graft material (rABB), and soft tissue (ST) were evaluated. RESULTS A total of 103 biopsy samples were evaluated, and the percentages of NB, rABB, and ST were 31.62 ± 9.85%, 18.94 ± 7.88%, and 49.41 ± 9.52%, respectively, in the 1st mm; 27.15 ± 9.83%, 23.33 ± 9.45%, and 49.53 ± 11.73%, respectively, in the 2nd mm; 23.61 ± 13.02%, 21.35 ± 11.08%, and 55.03 ± 16.14%, respectively, in the 3rd mm; and 21.67 ± 12.29%, 19.67 ± 10.28%, and 58.66 ± 12.46%, respectively, in the 4th mm. The 1st millimetre of the grafted area (closer to the native bone) presented a larger amount of NB than the other portions of the grafted areas and a smaller amount of rABB than the 2nd mm of the grafted area (p < .05). The amount of ST was larger in the 3rd and 4th mm of the grafted area than in the first 2 millimetres (p < .05). CONCLUSION The distance from the native bone influences bone formation following maxillary sinus augmentation.
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Affiliation(s)
- Tulio Bonna Pignaton
- Department of Diagnosis and Surgery, Araraquara Dental School, UNESP, Araraquara, Brazil
| | - Rubens Spin-Neto
- Section of Oral Radiology, School of Dentistry,, Aarhus University, Aarhus, Denmark
| | | | | | | | - Elcio Marcantonio
- Department of Diagnosis and Surgery, Araraquara Dental School, UNESP, Araraquara, Brazil
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Oliveira G, Pignaton TB, Almeida Ferreira CE, Peruzzo LC, Marcantonio E. New bone formation comparison in sinuses grafted with anorganic bovine bone and β‐TCP. Clin Oral Implants Res 2019. [DOI: 10.1111/clr.438_13509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Tsurumaki JDN, de Paula LGF, de Aquino SG, Marcantonio E, de Oliveira GJPL, Marcantonio RAC. Effect of avocado/soybean unsaponifiables on periodontal repair in rats with arthritis and induced periodontitis. J Appl Oral Sci 2019; 27:e20180602. [PMID: 31508794 PMCID: PMC9648970 DOI: 10.1590/1678-7757-2018-0602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 01/17/2019] [Accepted: 02/17/2019] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE This study aimed to evaluate the effect of avocado/soybean unsaponifiables (ASU) on periodontal repair in rats with induced periodontitis and arthritis. METHODOLOGY Forty-five rats were submitted to periodontitis induction by insertion of ligatures into the upper second molars, maintained for 15 days. These animals were randomly allocated to 3 groups according to the presence of induced arthritis (ART) and the application of the ASU: Control (CTR) group-healthy animals, where saline solution was administered; ART-animals with induced arthritis, where saline solution was administered; ART/ASU-animals with induced arthritis, where ASU (0.6 mg/ kg) was administered. The drugs were administered daily by gavage and the animals were euthanized after 7, 15 and 30 days of the ligature removal. Bone resorption, inflammatory infiltrate composition and marker proteins expression of the differentiation and formation of osteoclasts (RANKL and TRAP) were assessed. RESULTS The ART/ASU group presented higher bone volume than the ART group at 7 and 30 days after the ligature removal. Furthermore, the ART group presented higher quantity of inflammatory cells and expression of TRAP and RANKL than the other groups. CONCLUSION ASU administration improves the repair of periodontal tissues in an experimental periodontitis model in rats with induced arthritis.
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Affiliation(s)
- Jackeline do Nascimento Tsurumaki
- Universidade Estadual PaulistaUniversidade Estadual PaulistaFaculdade de Odontologia de AraraquaraDepartamento de Diagnóstico e CirurgiaAraraquaraSão PauloBrasilUniversidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araraquara, Departamento de Diagnóstico e Cirurgia, Araraquara, São Paulo, Brasil
| | - Luiz Guilherme Freitas de Paula
- Centro Universitário de AnápolisCentro Universitário de AnápolisFaculdade de OdontologiaAnápolisGoiásBrasilCentro Universitário de Anápolis, Faculdade de Odontologia (Unievangélica), Anápolis, Goiás, Brasil
| | - Sabrina Garcia de Aquino
- Universidade Federal da ParaíbaUniversidade Federal da ParaíbaFaculdade de OdontologiaDepartamento de Ciências da SaúdeJoão PessoaParaíbaBrasilUniversidade Federal da Paraíba, Faculdade de Odontologia, Departamento de Ciências da Saúde, João Pessoa, Paraíba, Brasil
| | - Elcio Marcantonio
- Universidade Estadual PaulistaUniversidade Estadual PaulistaFaculdade de Odontologia de AraraquaraDepartamento de Diagnóstico e CirurgiaAraraquaraSão PauloBrasilUniversidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araraquara, Departamento de Diagnóstico e Cirurgia, Araraquara, São Paulo, Brasil
| | - Guilherme José Pimentel Lopes de Oliveira
- Universidade Federal de UberlândiaUniversidade Federal de UberlândiaFaculdade de OdontologiaDepartamento de PeriodontiaUberlândiaMinas GeraisBrasilUniversidade Federal de Uberlândia, Faculdade de Odontologia, Departamento de Periodontia, Uberlândia, Minas Gerais, Brasil
| | - Rosemary Adriana Chiérici Marcantonio
- Universidade Estadual PaulistaUniversidade Estadual PaulistaFaculdade de Odontologia de AraraquaraDepartamento de Diagnóstico e CirurgiaAraraquaraSão PauloBrasilUniversidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araraquara, Departamento de Diagnóstico e Cirurgia, Araraquara, São Paulo, Brasil
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Pignaton TB, Oliveira G, Almeida Ferreira CE, Guignone CC, Marcantonio E. New bone formation comparison in grafted sinuses performed in heavy smokers and non‐smokers. Clin Oral Implants Res 2019. [DOI: 10.1111/clr.445_13509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Frizzera F, de Freitas R, Muñoz-Chávez O, Cabral G, Shibli J, Marcantonio E. Impact of Soft Tissue Grafts to Reduce Peri-implant Alterations After Immediate Implant Placement and Provisionalization in Compromised Sockets. INT J PERIODONT REST 2019; 39:381–389. [DOI: 10.11607/prd.3224] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Maquera Huacho PM, Rodriguez Herrero E, Verspecht T, Pauwels M, Marcantonio E, Palomari Spolidorio DM, Teughels W. Terpinen-4-ol and carvacrol affect multi-species biofilm composition. Biofouling 2019; 35:561-572. [PMID: 31282200 DOI: 10.1080/08927014.2019.1630386] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 06/04/2019] [Accepted: 06/07/2019] [Indexed: 06/09/2023]
Abstract
The aim of this study was to investigate the cytotoxic activity and inhibitory effect of terpinen-4-ol (T4ol) and carvacrol against single- and multi-species biofilms. The toxicity of each compound was tested on oral keratinocytes and evaluated by XTT assay. Inhibition and eradication of single-species biofilms were analyzed by crystal violet assay and the effect on multi-species biofilm composition was evaluated by qPCR. T4ol and carvacrol did not affect the epithelial cell viability, in contrast to chlorhexidine, which showed a high cytotoxic effect. Inhibition and eradication of single-species biofilms treated with T4ol and carvacrol were observed. The same inhibitory effect was observed for multi-species biofilms, especially on periodontal pathogens. In conclusion, specific concentrations of T4ol and carvacrol without toxicity towards the epithelial cells reduced the numbers of periodontal pathogens in single- and multi-species biofilms.
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Affiliation(s)
| | - Esteban Rodriguez Herrero
- Department of Oral Health Sciences, University of Leuven & Dentistry University Hospitals Leuven , Leuven , Belgium
| | - Tim Verspecht
- Department of Oral Health Sciences, University of Leuven & Dentistry University Hospitals Leuven , Leuven , Belgium
| | - Martine Pauwels
- Department of Oral Health Sciences, University of Leuven & Dentistry University Hospitals Leuven , Leuven , Belgium
| | - Elcio Marcantonio
- Department of Oral Diagnosis and Surgery, School of Dentistry, São Paulo State University (Unesp) , Araraquara , Brazil
| | | | - Wim Teughels
- Department of Oral Health Sciences, University of Leuven & Dentistry University Hospitals Leuven , Leuven , Belgium
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Pignaton TB, Wenzel A, Ferreira CEDA, Borges Martinelli C, Oliveira GJPL, Marcantonio E, Spin-Neto R. Influence of residual bone height and sinus width on the outcome of maxillary sinus bone augmentation using anorganic bovine bone. Clin Oral Implants Res 2019; 30:315-323. [PMID: 30803035 DOI: 10.1111/clr.13417] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 12/20/2018] [Accepted: 02/15/2019] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To evaluate the influence of the posterior residual bone height and sinus width on the outcome of maxillary sinus bone augmentation using anorganic bovine bone. MATERIAL AND METHODS Bilateral sinus bone augmentation was performed using anorganic bovine bone in 20 patients with residual bone height <2 mm in at least one site on each side. Trephine samples were removed at the implant insertion site 8 months after the grafting procedure, and histological and histomorphometric analyses were performed to examine the relative amount (%) of new bone, anorganic bovine bone, and soft tissue in the grafted area. Based on cone beam computed tomography evaluation, the sites of implant insertion were classified according to sinus width into narrow, average, and wide, and according to residual bone height into ≤2 and >2 mm. RESULTS A total of 146 implants were installed and 103 biopsies were evaluated. New bone formation in sites classified as narrow (69 sites), average (19 sites), and wide (15 sites) was 28.5% ± 9.24, 28.9% ± 8.61, and 30.3% ± 7.80, respectively. The mean posterior maxillary residual bone height was 4.0 ± 2.43 mm, and 26 and 77 sites were classified as ≤2 and >2 mm, respectively. New bone formation was 26.2% ± 9.10 and 29.8% ± 8.67 for residual bone height ≤2 and >2 mm, respectively. The differences were non-significant. CONCLUSIONS Within the limitations of the present study, posterior residual bone height and sinus width were not factors with influence on new bone formation in sinuses grafted exclusively with anorganic bovine bone after 8 months of healing.
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Affiliation(s)
- Túlio Bonna Pignaton
- Department of Periodontology, UNESP - Univ. Estadual Paulista, Araraquara Dental School, Araraquara, Brazil.,Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
| | - Ann Wenzel
- Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
| | | | | | - Guilherme J P L Oliveira
- Department of Periodontology, UNESP - Univ. Estadual Paulista, Araraquara Dental School, Araraquara, Brazil
| | - Elcio Marcantonio
- Department of Periodontology, UNESP - Univ. Estadual Paulista, Araraquara Dental School, Araraquara, Brazil
| | - Rubens Spin-Neto
- Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
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Pichotano EC, de Molon RS, de Souza RV, Austin RS, Marcantonio E, Zandim-Barcelos DL. Evaluation of L-PRF combined with deproteinized bovine bone mineral for early implant placement after maxillary sinus augmentation: A randomized clinical trial. Clin Implant Dent Relat Res 2019; 21:253-262. [PMID: 30690860 DOI: 10.1111/cid.12713] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 11/14/2018] [Accepted: 12/10/2018] [Indexed: 02/06/2023]
Abstract
PURPOSE To investigate the effectiveness of adding leukocyte and platelet-rich fibrin (L-PRF) to deproteinized bovine bone mineral (DBBM) for early implant placement after maxillary sinus augmentation. MATERIALS AND METHODS Twelve patients requiring two-stage bilateral maxillary sinus augmentation were enrolled to the study. The elevated sinus cavities were randomly grafted with DBBM + L-PRF (test) or DBBM alone (control) in a split-mouth design. Implants were placed in the augmented sites after 4 months in the test group and 8 months in the control group. Bone biopsies were collected during implant placement for histomorphometric evaluation. Resonance frequency analysis was performed immediately after implant placement and at implant loading in both groups. Cone-beam computed tomography was obtained preoperatively and postoperatively for evaluation of graft volume changes. RESULTS Both procedures were effective for maxillary sinus augmentation. Cone-beam computed tomography analysis did not reveal differences in graft volume between test and control group at any of the evaluated time points (P > .05). Histological evaluation demonstrated increased percentage of newly formed bone for the test group (44.58% ± 13.9%) compared to the control group (30.02% ± 8.42%; P = .0087). The amount of residual graft in the control group was significantly higher (13.75% ± 9.99%) than in the test group (3.59 ± 4.22; P = .0111). Implant stability quotient (ISQ) immediately after implant placement was significantly higher in the control group (75.13 ± 5.69) compared to the test group (60.9 ± 9.35; P = .0003). The ISQ values at loading did not differ between the groups (P = .8587). Implant survival rate was 100% for both groups. CONCLUSION The addition of L-PRF to the DBBM into the maxillary sinus allowed early implant placement (4 months) with increased new bone formation than DBBM alone after 8 months of healing.
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Affiliation(s)
- Elton Carlos Pichotano
- Department of Diagnosis and Surgery, São Paulo State University (Unesp), School of Dentistry, Araraquara, São Paulo, Brazil
| | - Rafael Scaf de Molon
- Department of Diagnosis and Surgery, São Paulo State University (Unesp), School of Dentistry, Araraquara, São Paulo, Brazil
| | | | - Rupert S Austin
- Tissue Engineering and Biophotonics, King's College London Dental Institute, Guy's Hospital, London, United Kingdom
| | - Elcio Marcantonio
- Department of Diagnosis and Surgery, São Paulo State University (Unesp), School of Dentistry, Araraquara, São Paulo, Brazil
| | - Daniela Leal Zandim-Barcelos
- Department of Diagnosis and Surgery, São Paulo State University (Unesp), School of Dentistry, Araraquara, São Paulo, Brazil
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de Molon RS, Magalhaes-Tunes FS, Semedo CV, Furlan RG, de Souza LGL, de Souza Faloni AP, Marcantonio E, Faeda RS. A randomized clinical trial evaluating maxillary sinus augmentation with different particle sizes of demineralized bovine bone mineral: histological and immunohistochemical analysis. Int J Oral Maxillofac Surg 2018; 48:810-823. [PMID: 30442550 DOI: 10.1016/j.ijom.2018.09.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 07/19/2018] [Accepted: 09/10/2018] [Indexed: 02/02/2023]
Abstract
This study was performed to investigate sinus floor augmentation with two different particle sizes of demineralized bovine bone mineral (DBBM) by means of histological and immunohistochemical (IHC) analysis. A randomized clinical trial was conducted involving 10 individuals requiring two-stage bilateral maxillary sinus augmentation for implant installation. The patients were randomly divided into two groups following a split-mouth design: the maxillary sinus on one side was filled with small-sized particles (0.25-1mm) and on the contralateral side with large-sized particles (1-2mm). After a healing period of 8 months, 25 implants were placed. During implant site preparation, bone biopsies were obtained from each sinus, perpendicular to the long axis of the implant (buccal-palatal direction), for descriptive and histomorphometric analyses. IHC staining for protein expression of osteocalcin (OCN), vascular endothelial growth factor (VEGF), and tartrate-resistant acid phosphatase (TRAP) was also performed. Histomorphometric analysis revealed no statistically significant difference in the percentage of biomaterial (32.4±8.56% and 38.0±6.92%), newly formed bone (36.1±9.60% and 36.7±5.79%), or connective tissue (30.4±8.63% and 23.8±6.16%) between the small- and large-sized particle groups, respectively. IHC analysis did not reveal differences in the expression of OCN, VEGF, or TRAP. These findings suggest that both particle sizes of DBBM are effective for bone augmentation in the maxillary sinus.
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Affiliation(s)
- R S de Molon
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, São Paulo State University - UNESP, Araraquara, São Paulo, Brazil.
| | - F S Magalhaes-Tunes
- Department of Health Sciences, Implantology Post Graduation Course, University Centre of Araraquara - UNIARA, São Paulo, Brazil
| | - C V Semedo
- Department of Health Sciences, Implantology Post Graduation Course, University Centre of Araraquara - UNIARA, São Paulo, Brazil
| | - R G Furlan
- Department of Health Sciences, Implantology Post Graduation Course, University Centre of Araraquara - UNIARA, São Paulo, Brazil
| | - L G L de Souza
- Department of Health Sciences, Implantology Post Graduation Course, University Centre of Araraquara - UNIARA, São Paulo, Brazil
| | - A P de Souza Faloni
- Department of Health Sciences, Implantology Post Graduation Course, University Centre of Araraquara - UNIARA, São Paulo, Brazil
| | - E Marcantonio
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, São Paulo State University - UNESP, Araraquara, São Paulo, Brazil
| | - R S Faeda
- Department of Health Sciences, Implantology Post Graduation Course, University Centre of Araraquara - UNIARA, São Paulo, Brazil
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Racine A, Jones R, Gou Y, Fong T, Ngo L, Travison T, Inouye S, Marcantonio E. PREOPERATIVE FRAILTY PREDICTS POSTOPERATIVE LONG-TERM COGNITIVE DECLINE INDEPENDENT OF DELIRIUM. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- A Racine
- Hebrew SeniorLife, Harvard Medical School
| | - R Jones
- Brown University Warren Alpert Medical School
| | | | - T Fong
- Beth Israel Deaconess Medical Center, Harvard Medical School
| | - L Ngo
- Beth Israel Deaconess Medical Center, Harvard Medical School
| | - T Travison
- Hebrew SeniorLife Institute for Aging Research and Assistant Professor of Medicine at Harvard Medical School
| | - S Inouye
- Hebrew Senior Life, Harvard Medical School, and Beth Israel Deaconess Medical Center
| | - E Marcantonio
- Beth Israel Deaconess Medical Center & Harvard Medical School
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Husser E, Shrestha P, Gallagher J, Boltz M, Inouye S, Boustani M, Marcantonio E, Fick D. IMPLEMENTING A TWO-STEP DELIRIUM IDENTIFICATION PROTOCOL WITH HOSPITALIZED OLDER ADULTS: A FOCUSED ETHNOGRAPHY. Innov Aging 2018. [DOI: 10.1093/geroni/igy031.3626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | | | - J Gallagher
- Beth Israel Deaconess Medical Center Department of General Medicine
| | - M Boltz
- Pennsylvania State University College of Nursing
| | - S Inouye
- Hebrew Senior Life, Harvard Medical School, and Beth Israel Deaconess Medical Center
| | | | - E Marcantonio
- . Beth Israel Deaconess Medical Center & Harvard Medical School
| | - D Fick
- Penn State College of Nursing and College of Medicine, Department of Psychiatry
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Vasunilashorn S, Zhou W, Ngo L, Dillon S, Otu H, Inouye S, Libermann T, Marcantonio E. A MULTI-PROTEIN SIGNATURE OF POSTOPERATIVE DELIRIUM. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S Vasunilashorn
- Beth Israel Deaconess Medical Center, Harvard Medical School
| | - W Zhou
- Beth Israel Deaconess Medical Center
| | - L Ngo
- Beth Israel Deaconess Medical Center, Harvard Medical School
| | - S Dillon
- Beth Israel Deaconess Medical Center, Harvard Medical School
| | - H Otu
- University of Nebraska-Lincoln
| | - S Inouye
- Hebrew Senior Life, Harvard Medical School, and Beth Israel Deaconess Medical Center
| | - T Libermann
- Beth Israel Deaconess Medical Center, Harvard Medical School
| | - E Marcantonio
- Beth Israel Deaconess Medical Center & Harvard Medical School
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Pinotti FE, de Oliveira GJPL, Aroni MAT, Marcantonio RAC, Marcantonio E. Analysis of osseointegration of implants with hydrophilic surfaces in grafted areas: A Preclinical study. Clin Oral Implants Res 2018; 29:963-972. [DOI: 10.1111/clr.13361] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 06/07/2018] [Accepted: 06/13/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Felipe E. Pinotti
- School of Dentistry; São Paulo State University (Unesp); Araraquara Brazil
| | | | | | | | - Elcio Marcantonio
- School of Dentistry; São Paulo State University (Unesp); Araraquara Brazil
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Scardueli CR, Bizelli-Silveira C, Marcantonio RAC, Marcantonio E, Stavropoulos A, Spin-Neto R. Systemic administration of strontium ranelate to enhance the osseointegration of implants: systematic review of animal studies. Int J Implant Dent 2018; 4:21. [PMID: 30014305 PMCID: PMC6047953 DOI: 10.1186/s40729-018-0132-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 04/23/2018] [Indexed: 12/31/2022] Open
Abstract
The literature states that Strontium (Sr) is able to simultaneously stimulate bone formation and suppress bone resorption. Recent animal studies suggest that the systemic administration of Sr, in the form of strontium ranelate (SRAN), would enhance the osseointegration of implants. The purpose of the present study was to undertake a systematic review on animal studies evaluating the systemic administration of Sr to enhance the osseointegration of titanium implants and the remodeling of bone grafts. The MEDLINE (PubMed) and Scopus bibliographic databases were searched from 1950 to October 2017 for reports on the use of systemic and non-radioactive Sr to enhance the osseointegration of titanium implants and the remodeling of bone grafts in animals. The search strategy was restricted to English language publications using the combined terms: "strontium" and "implant or graft or biomaterial or bone substitute". Five studies were included, all related to the systemic administration of Sr in the form SRAN, and its effects on osseointegration of titanium implants. No studies on the use of SRAN-based therapy to enhance the remodeling of bone grafts were found. The studies differed notably with respect to the study population (healthy female rats, healthy male rats, and female rats with induced osteoporosis) and SRAN dose (ranging from 500 to 1000 mg/kg/day). Results were diverse, but a tendency suggesting positive influence of systemic SRAN administration on the osseointegration of titanium implants was observed. No major side-effects due to strontium administration were reported. Systemic Sr administration, in the form of SRAN, seems to enhance peri-implant bone quality and implant osseointegration in animals, however, at a moderate extent. Further studies, evaluating both the effects of this drug on implant osseointegration and the risk/benefit of its use, are needed to provide a rationale of this therapeutic approach.
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Affiliation(s)
- Cassio Rocha Scardueli
- Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
- Department of Periodontology, São Paulo State University (Unesp), School of Dentistry, Araraquara, São Paulo Brazil
| | | | | | - Elcio Marcantonio
- Department of Periodontology, São Paulo State University (Unesp), School of Dentistry, Araraquara, São Paulo Brazil
| | - Andreas Stavropoulos
- Department of Periodontology, Faculty of Odontology, University of Malmö, Malmö, Sweden
| | - Rubens Spin-Neto
- Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
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Pichotano EC, de Molon RS, Freitas de Paula LG, de Souza RV, Marcantonio E, Zandim-Barcelos DL. Early Placement of Dental Implants in Maxillary Sinus Grafted With Leukocyte and Platelet-Rich Fibrin and Deproteinized Bovine Bone Mineral. J ORAL IMPLANTOL 2018; 44:199-206. [PMID: 29457934 DOI: 10.1563/aaid-joi-d-17-00220] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This case report aimed to describe the effects of leukocyte and platelet-rich fibrin (L-PRF) associated with demineralized bovine bone mineral (DBBM) and absorbable collagen membrane (CM) on bone regeneration in maxillary sinus augmentation. A 59-year-old male patient was referred to the Department of Periodontology for implant rehabilitation of his edentulous upper jaw. The treatment plan involved maxillary sinus augmentation followed by implant installations. A split-mouth design was employed in which the right maxillary sinus was filled using L-PRF, DBBM, and CM; the left side was filled with DBBM and CM. After 4 and 8 months postoperatively, 2 dental implants were installed in each of the right and left maxillary sinuses. Cone-beam computerized tomography (CBCT) was taken before and after sinus augmentation for evaluation of tridimensional bone volume alterations. Bone biopsies were harvested from the implant sites for histomorphometric evaluation. Resonance frequency analysis was employed immediately after implant placement and before prosthetic rehabilitation for evaluation of implant stability. Implants were loaded 10 months after sinus augmentation. CBCT analysis showed a higher resorption rate in the right side of the maxillary sinus (L-PRF + DBBM) compared to the left side (22.25% and 8.95%, respectively). Implant stability quotients were above 68 in all time-points for both groups. Histomorphometric analysis showed a high amount of newly formed bone when L-PRF was used compared with DBBM alone (2 118 102 and 975 535 mm3, respectively). Taken together, both techniques were effective for maxillary sinus augmentation, however the addition of L-PRF to the graft allowed early implant placement and accelerated bone healing in the conditions studied.
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Affiliation(s)
- Elton Carlos Pichotano
- 1 Department of Diagnosis and Surgery, School of Dentistry at Araraquara, Sao Paulo State University - UNESP, Araraquara, SP, Brazil
| | - Rafael Scaf de Molon
- 1 Department of Diagnosis and Surgery, School of Dentistry at Araraquara, Sao Paulo State University - UNESP, Araraquara, SP, Brazil
| | | | | | - Elcio Marcantonio
- 1 Department of Diagnosis and Surgery, School of Dentistry at Araraquara, Sao Paulo State University - UNESP, Araraquara, SP, Brazil
| | - Daniela Leal Zandim-Barcelos
- 1 Department of Diagnosis and Surgery, School of Dentistry at Araraquara, Sao Paulo State University - UNESP, Araraquara, SP, Brazil
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de Oliveira GJPL, Aroni MAT, Medeiros MC, Marcantonio E, Marcantonio RAC. Effect of low-level laser therapy on the healing of sites grafted with coagulum, deproteinized bovine bone, and biphasic ceramic made of hydroxyapatite and β-tricalcium phosphate. In vivo study in rats. Lasers Surg Med 2018; 50:651-660. [PMID: 29331041 DOI: 10.1002/lsm.22787] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2017] [Indexed: 12/17/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the effect of low-level laser therapy (LLLT) on the healing of biomaterial graft areas (i.e., coagulum, deproteinized bovine bone, and biphasic ceramics comprising hydroxyapatite and β-tricalcium phosphate). MATERIAL AND METHODS Ninety rats were divided into two groups according to laser irradiation use (λ 808 nm, 100 mW, φ ∼600 μm, seven sessions with 28 J of irradiation dose in total): a laser group and a control group. Each of these groups was divided into three subgroups of 15 animals each according to the type of biomaterial used: Coagulum (COA), deproteinized bovine bone (DBB), and hydroxyapatite/β-tricalcium phosphate (HA/βTCP). Biomaterials were inserted into Teflon domes, and these domes were grafted to the lateral aspect of the mandibular branch of the rats. The animals were sacrificed after 30, 60, and 90 days. Scarring patterns were evaluated by microtomography and histometry. The expression levels of BMP2, osteocalcin (OCN), and alkaline phosphatase (ALP) were evaluated by immunohistochemistry. The mRNA expression levels of ALP, BMP2, Jagged1, Osterix, Runx2, and TGFβ1 were determined by RT-qPCR. RESULTS The animals treated with LLLT exhibited increased mineralized tissues and bone, particularly after 90 days. These increases were associated with increased BMP2, OCN, and ALP protein expression and ALP, BMP2, and Jagged1 mRNA expression. CONCLUSION LLLT improved the osteoconductive potential of DBB and HA/βTCP grafts and bone formation in ungrafted areas. Lasers Surg. Med. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Guilherme J P L de Oliveira
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, State University of Sao Paulo (Universidade Estadual Paulista-UNESP), Humaitá st.1680, Araraquara, São Paulo, 14801-930, Brazil
| | - Maurício A T Aroni
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, State University of Sao Paulo (Universidade Estadual Paulista-UNESP), Humaitá st.1680, Araraquara, São Paulo, 14801-930, Brazil
| | - Marcell C Medeiros
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, State University of Sao Paulo (Universidade Estadual Paulista-UNESP), Humaitá st.1680, Araraquara, São Paulo, 14801-930, Brazil
| | - Elcio Marcantonio
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, State University of Sao Paulo (Universidade Estadual Paulista-UNESP), Humaitá st.1680, Araraquara, São Paulo, 14801-930, Brazil
| | - Rosemary A C Marcantonio
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, State University of Sao Paulo (Universidade Estadual Paulista-UNESP), Humaitá st.1680, Araraquara, São Paulo, 14801-930, Brazil
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de Molon RS, Sakakura CE, Faeda RS, Sartori R, Palhares D, Margonar R, Marcantonio E. Effect of the long-term administration of Cyclosporine A on bone healing around osseointegrated titanium implants: A histomorphometric study in the rabbit tibia. Microsc Res Tech 2017; 80:1000-1008. [DOI: 10.1002/jemt.22894] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 04/12/2017] [Accepted: 05/06/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Rafael Scaf de Molon
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara; Sao Paulo State University - UNESP; Araraquara SP Brazil
- Department of Rheumatology; Rheumatology Research and Advanced Therapeutics, Radboud University Nijmegen Medical Centre; 6500 HB Nijmegen The Netherlands
| | - Celso Eduardo Sakakura
- Department of Periodontology; Barretos Dental School, Education Foundation of Barretos - FEB; Barretos SP Brazil
| | - Rafael Silveira Faeda
- Department of Health Sciences; Implantology Post Graduation Course, University Center of Araraquara - UNIARA Dental School; SP Brazil
| | - Rafael Sartori
- Department of Dentistry; Ponta Grossa State University; Ponta Grossa Paraná Brazil
| | - Daniel Palhares
- Department of Periodontology; Barretos Dental School, Education Foundation of Barretos - FEB; Barretos SP Brazil
| | - Rogerio Margonar
- Department of Health Sciences; Implantology Post Graduation Course, University Center of Araraquara - UNIARA Dental School; SP Brazil
| | - Elcio Marcantonio
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara; Sao Paulo State University - UNESP; Araraquara SP Brazil
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de Molon RS, de Paula WN, Spin-Neto R, Verzola MHA, Tosoni GM, Lia RCC, Scaf G, Marcantonio E. Correlation of fractal dimension with histomorphometry in maxillary sinus lifting using autogenous bone graft. Braz Dent J 2016; 26:11-8. [PMID: 25672378 DOI: 10.1590/0103-6440201300290] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 12/11/2014] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to determine the pattern of bone remodeling after maxillary sinus lifting in humans by means of fractal dimension (FD) and histomorphometric analysis. Therefore, the correlation between FD and the histomorphometric findings was evaluated. Sixteen patients with posterior edentulous maxilla were enrolled in this study. Maxillary sinus lifting was performed using autogenous bone grafted from the mandibular retromolar area. Three direct digital panoramic radiographs were obtained: before surgery (Group 1), immediately postoperatively (Group 2) and after 6 months of healing (Group 3) for FD analysis. Biopsies were taken after 6 months, processed and submitted to histological and histomorphometric analysis. Data were analyzed by Shapiro-Wilk test and ANOVA test followed by a Tukey test (a = 0.05). The bone volume fraction of newly trabecular bone (TB) and medullary area (MA) was measured as 62.75% ± 17.16% and 37.25 ± 17.16%, respectively. Significant difference in FD analysis was measured between Group 1 and Group 3. No significant difference was found in the correlation between FD and histomorphometric analysis for TB and MA (p = 0.84). In conclusion, all performed analyses were effective in assessing the bone-remodeling pattern in the maxillary sinus, offering complementary information about healing and predictable outcomes. There were no correlations between FD and histomorphometric analysis.
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Affiliation(s)
- Rafael Scaf de Molon
- Department of Diagnosis and Surgery, Araraquara Dental School, UNESP - Univ Estadual Paulista, Araraquara, SP, Brazil
| | - Wagner Nunes de Paula
- Department of Diagnosis and Surgery, Araraquara Dental School, UNESP - Univ Estadual Paulista, Araraquara, SP, Brazil
| | - Rubens Spin-Neto
- Oral Radiology, Department of Dentistry, Aarhus University, Aarhus, Denmark
| | - Mario Henrique Arruda Verzola
- Department of Diagnosis and Surgery, Araraquara Dental School, UNESP - Univ Estadual Paulista, Araraquara, SP, Brazil
| | - Guilherme Monteiro Tosoni
- Department of Diagnosis and Surgery, Araraquara Dental School, UNESP - Univ Estadual Paulista, Araraquara, SP, Brazil
| | | | - Gulnara Scaf
- Department of Diagnosis and Surgery, Araraquara Dental School, UNESP - Univ Estadual Paulista, Araraquara, SP, Brazil
| | - Elcio Marcantonio
- Department of Diagnosis and Surgery, Araraquara Dental School, UNESP - Univ Estadual Paulista, Araraquara, SP, Brazil
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de Freitas RM, Susin C, Tamashiro WMDSC, Chaves de Souza JA, Marcantonio C, Wikesjö UME, Pereira LAVD, Marcantonio E. Histological analysis and gene expression profile following augmentation of the anterior maxilla using rhBMP-2/ACSversusautogenous bone graft. J Clin Periodontol 2016; 43:1200-1207. [DOI: 10.1111/jcpe.12601] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/17/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Rubens Moreno de Freitas
- Department of Post-Graduation; ILAPEO - Latin American Institute of Dental Research and Education; Curitiba PR Brazil
| | - Cristiano Susin
- Laboratory for Applied Periodontal & Craniofacial Regeneration (LAPCR); Departments of Periodontics and Oral Biology; Dental College of Georgia; Augusta University; Augusta GA USA
- Department of Orthopaedic Surgery; Medical College of Georgia; Augusta University; Augusta GA USA
| | | | - João Antonio Chaves de Souza
- Department of Stomatological Sciences - Periodontology; UFG - Federal University of Goias; Dental School; Goiania GO Brazil
| | - Claudio Marcantonio
- Department of Diagnostic and Surgery - Periodontics; UNESP - Univ Estadual Paulista; Araraquara Dental School; Araraquara SP Brazil
| | - Ulf ME Wikesjö
- Laboratory for Applied Periodontal & Craniofacial Regeneration (LAPCR); Departments of Periodontics and Oral Biology; Dental College of Georgia; Augusta University; Augusta GA USA
- Department of Orthopaedic Surgery; Medical College of Georgia; Augusta University; Augusta GA USA
| | | | - Elcio Marcantonio
- Department of Diagnostic and Surgery - Periodontics; UNESP - Univ Estadual Paulista; Araraquara Dental School; Araraquara SP Brazil
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Dos Anjos TLMR, de Molon RS, Paim PRF, Marcantonio E, Marcantonio E, Faeda RS. Implant stability after sinus floor augmentation with deproteinized bovine bone mineral particles of different sizes: a prospective, randomized and controlled split-mouth clinical trial. Int J Oral Maxillofac Surg 2016; 45:1556-1563. [PMID: 27692642 DOI: 10.1016/j.ijom.2016.09.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 06/20/2016] [Accepted: 09/06/2016] [Indexed: 11/28/2022]
Abstract
The aim of this study was to compare implant stability after maxillary sinus floor augmentation using small- or large-sized particles of Bio-Oss. Ten partially edentulous patients requiring bilateral maxillary sinus floor augmentation were enrolled. The subjects were assigned randomly to one of two experimental groups: maxillary sinus was filled with 0.25-1mm particle size (small particles) and the contralateral side was filled with 1-2mm particle size (large particles). After 8 months, a total of 25 implants were placed in the two maxillary sinuses. Primary implant stability was measured immediately after implant placement (T0) using a torque controller and resonance frequency analysis (RFA). Six months after implant placement (T1), the implant stability was measured again. There were no postoperative complications in either particle size group, and the success rate for implant survival was 100%. All implants showed good primary stability as evidenced by high torque for the implant insertion in both groups. RFA revealed high ISQ values for all implants installed in both groups at T0 and T1. These results indicate that the size of the Bio-Oss particles (small and large) did not influence implant stability in the maxillary sinus. Indeed, small and large particles of Bio-Oss presented optimal properties, supporting their possible use as osteoconductive grafts.
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Affiliation(s)
- T L M R Dos Anjos
- Department of Health Sciences, Implantology Post Graduation Course, University Centre of Araraquara - UNIARA, Sao Paulo, Brazil
| | - R S de Molon
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, Sao Paulo State University - UNESP, Araraquara, SP, Brazil.
| | - P R F Paim
- Department of Health Sciences, Implantology Post Graduation Course, University Centre of Araraquara - UNIARA, Sao Paulo, Brazil
| | - E Marcantonio
- Department of Health Sciences, Implantology Post Graduation Course, University Centre of Araraquara - UNIARA, Sao Paulo, Brazil
| | - E Marcantonio
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, Sao Paulo State University - UNESP, Araraquara, SP, Brazil
| | - R S Faeda
- Department of Health Sciences, Implantology Post Graduation Course, University Centre of Araraquara - UNIARA, Sao Paulo, Brazil
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Valente MLDC, Marcantonio E, Faeda RS, de Paula WN, Dos Reis AC. Esthetic solution to malpositioned implants with remodeling of soft tissue: a case report. Gen Dent 2016; 64:56-59. [PMID: 27599283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This article describes a clinical case of gingival conditioning with provisional fixed prostheses to improve the esthetics of the soft tissues adjacent to fixed prostheses placed on malpositioned implants. Gradual application of pressure to the tissues is an easy, nontraumatic technique for inducing formation of papillae and reestablishing the appropriate shape and contour of the gingival tissues, thereby improving esthetics and phonetics. The proposed treatment proved to be effective in remodeling the surrounding soft tissues, providing suitable contours, and restoring esthetics and function lost due to surgical treatment with malpositioned implants.
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de Oliveira GJPL, Barros-Filho LAB, Barros LAB, Queiroz TP, Marcantonio E. In Vitro Evaluation of the Primary Stability of Short and Conventional Implants. J ORAL IMPLANTOL 2016; 42:458-463. [PMID: 27455447 DOI: 10.1563/aaid-joi-d-16-00094] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The objective of this study was to evaluate the primary stability of short and conventional dental implants with different platform types at different site densities in vitro. One hundred twenty implants were placed in polyurethane blocks that simulate different bone densities (bone types I and IV). The implants were divided into 10 groups, with 12 implants each according to the type of prosthetic connections (external hexagon, EH; morse taper, MT) and size of the implants (conventional: 4 × 10 mm; short: 5 × 5, 5.5 × 5, 5 × 6, and 5.5 × 6 mm). Insertion torque and resonance frequency analyses were performed to evaluate the primary stability. The Kruskal-Wallis test complemented by Dunn's test and the Mann-Whitney test were used for statistical analysis. These tests were applied at the confidence level of 95% (P < .05). The implants installed in blocks with density type IV exhibited reduced insertion torque compared with implants placed in blocks with density type I. Short implants with EH exhibited increased insertion torque compared with short implants with MT in blocks with bone density type I. In general, implants installed in blocks with density type I exhibited greater primary stability. The short implants with EH with a 5.5-mm diameter and the short implants with MT with a 5-mm diameter exhibited reduced primary stability. No differences between short and conventional implants were noted. Short implants have primary stability and insertion torque at least equivalent to conventional implants irrespective of the platform type and density of the site.
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Affiliation(s)
| | - Luiz Antônio Borelli Barros-Filho
- 1 Section of Periodontology, Department of Diagnosis and Surgery, School of Dentistry at Araraquara-Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Luiz Antônio Borelli Barros
- 2 Section of Clinics, Department of Oral Social Health, School of Dentistry at Araraquara- Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Thalita Pereira Queiroz
- 3 Department of Health Sciences, Dental School, University Center of Araraquara-Araraquara, São Paulo, Brazil
| | - Elcio Marcantonio
- 1 Section of Periodontology, Department of Diagnosis and Surgery, School of Dentistry at Araraquara-Universidade Estadual Paulista, Araraquara, SP, Brazil
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Esteves JC, de Souza Faloni AP, Macedo PD, Nakata PB, Chierici Marcantonio RA, Intini G, Marcantonio E. Effects on Bone Repair of Osteotomy With Drills or With Erbium, Chromium: Yttrium-Scandium-Gallium-Garnet Laser: Histomorphometric and Immunohistochemical Study. J Periodontol 2015; 87:452-60. [PMID: 26693695 DOI: 10.1902/jop.2015.150406] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND The erbium, chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser has been widely used in the dental clinic; however, few studies have demonstrated the advantages of the use of this laser for bone osteotomies. The purpose of this study is to evaluate and compare the bone repair process of defects generated by the Er,Cr:YSGG laser or conventional drills. METHODS Ninety-six rats were divided into two groups of 48 animals (drill group and laser group). After surgical exposure of the right tibia, the animals were subjected to a 2-mm-diameter osteotomy created by conventional drills (drill group) or by the Er,Cr:YSGG laser (laser group). The animals were sacrificed 0, 3, 7, 14, 30, and 60 days after the creation of the defect, and histologic sections were obtained and used for histomorphometric and immunohistochemical analyses for the detection of osteocalcin, osteoprotegerin, receptor activator of nuclear factor κ-B ligand, vascular endothelial growth factor, and caspase-3. RESULTS The osteotomy with the drill produced well-delimited and smooth walls, whereas the osteotomies in the laser group were irregular and presented an amorphous basophilic line and bone necrosis that was slowly resorbed during the repair process. Despite these characteristics, bone repair was similar between groups at various time points, and, at 60 days, the defects in both groups were completely repaired by newly formed bone. CONCLUSION The repair process of osteotomies created by the Er,Cr:YSGG laser, despite producing thermal damage to bone tissue, is comparable to that with conventional drills.
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Affiliation(s)
- Jônatas Caldeira Esteves
- Department of Dental Clinic, Dental School, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ana Paula de Souza Faloni
- Department of Health Sciences, Implantology Postgraduation Course, University Center of Araraquara (UNIARA), Araraquara, São Paulo, Brazil
| | - Paula Delello Macedo
- Department of Diagnosis and Surgery, Division of Periodontology, Araraquara Dental School, Univ Estadual Paulista (UNESP), Araraquara, São Paulo, Brazil
| | - Patrícia Borges Nakata
- Department of Diagnosis and Surgery, Division of Periodontology, Araraquara Dental School, Univ Estadual Paulista (UNESP), Araraquara, São Paulo, Brazil
| | - Rosemary Adriana Chierici Marcantonio
- Department of Diagnosis and Surgery, Division of Periodontology, Araraquara Dental School, Univ Estadual Paulista (UNESP), Araraquara, São Paulo, Brazil
| | - Giuseppe Intini
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Harvard University, Boston, MA.,Harvard Stem Cell Institute, Cambridge, MA
| | - Elcio Marcantonio
- Department of Diagnosis and Surgery, Division of Periodontology, Araraquara Dental School, Univ Estadual Paulista (UNESP), Araraquara, São Paulo, Brazil
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Frizzera F, Pigossi SC, Tonetto MR, Kabbach W, Marcantonio E. Predictable interproximal tissue removal with a surgical stent. J Prosthet Dent 2014; 112:727-30. [DOI: 10.1016/j.prosdent.2014.05.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 05/22/2014] [Accepted: 05/22/2014] [Indexed: 10/25/2022]
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Bastos AS, Spin-Neto R, Conte-Neto N, Galina K, Boeck-Neto RJ, Marcantonio C, Marcantonio E, Marcantonio E. Calvarial Autogenous Bone Graft for Maxillary Ridge and Sinus Reconstruction for Rehabilitation With Dental Implants. J ORAL IMPLANTOL 2014; 40:469-78. [DOI: 10.1563/aaid-joi-d-11-00090] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Autogenous bone grafting is the gold-standard technique for bone augmentation procedures prior to implant placement. If the amount of available intraoral donor bone is insufficient, it is necessary to harvest bone graft from extraoral sites, such as calvaria. Although this technique is well established, only a few case reports show the histological analysis of the grafted bone at the moment of implant placement. This article reports the case of a 48-year-old female patient with a critical atrophic maxillary ridge reconstructed using autogenous calvarial bone graft prior to implant placement, with clinical and histological evaluation. Bone was collected under general anesthesia from the parietal bone. The outer cortical originated the bone blocks, and the medullar bone layer between was collected to be used in the sinus augmentation procedure, together with 5 of the bone blocks triturated. Six months after bone augmentation, 8 implants were placed in the grafted area and 2 biopsies were retrieved (anterior and the posterior regions), allowing the visualization of the bone-remodeling process in the grafted areas. The patient had a stable recovery. Our results showed that although necrotic bone could still be seen in the outer layer of the grafted area, the interface between this necrotic bone and the already remodeled bone was consistent with biocompatibility. Two-year radiographic evaluation showed success of the grafts and the implants in supporting an esthetic and functionally stable prosthesis. Summarizing, calvarial bone grafts are a viable alternative for the attainment of adequate bone volume prior to implant placement.
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Affiliation(s)
- Alliny Souza Bastos
- Department of Periodontology, Araraquara Dental School, UNESP-Univ Estadual Paulista, Araraquara, São Paulo, Brazil
| | - Rubens Spin-Neto
- Department of Periodontology, Araraquara Dental School, UNESP-Univ Estadual Paulista, Araraquara, São Paulo, Brazil
- Department of Dentistry, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Nicolau Conte-Neto
- Department of Periodontology, Araraquara Dental School, UNESP-Univ Estadual Paulista, Araraquara, São Paulo, Brazil
| | | | - Rodolfo Jorge Boeck-Neto
- Department of Bucco-maxillo-facial Surgery, UNIARA–Centro Universitá rio de Araraquara, Araraquara, São Paulo, Brazil
| | - Cláudio Marcantonio
- FAEPO–Araraquara Foundation for Research and Education in Dentistry, Araraquara, São Paulo, Brazil
| | - Elcio Marcantonio
- Department of Bucco-maxillo-facial Surgery, UNESP–Univ Estadual Paulista, Araraquara Dental School, Araraquara, São Paulo, Brazil
| | - Elcio Marcantonio
- Department of Periodontology, Araraquara Dental School, UNESP-Univ Estadual Paulista, Araraquara, São Paulo, Brazil
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de Oliveira GJPL, de Paula LGF, Spin-Neto R, Stavropoulos A, Spolidório LC, Marcantonio E, Marcantonio RAC. Effect of avocado/soybean unsaponifiables on osseointegration: a proof-of-principle preclinical in vivo study. Int J Oral Maxillofac Implants 2014; 29:949-57. [PMID: 25032777 DOI: 10.11607/jomi.3498] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
PURPOSE To evaluate the influence of administration of avocado/soybean unsaponifiables (ASU) on implant osseointegration in rat tibiae. MATERIALS AND METHODS Thirty rats were randomly assigned into one of three equal-sized groups: (1) ASU1: administration of ASU starting 7 days prior to implant placement; (2) ASU2: administration of ASU starting on the day of implant placement, and (3) CTL: administration of saline solution. In all animals, one titanium implant was placed in each tibia. All animals received ASU or saline solution by gavage daily until sacrifice 60 days postoperatively. Implant osseointegration and bone maturation were assessed by biomechanical and radiographic bone density analysis; descriptive histology; immunohistochemistry for bone morphogenetic protein 2 (BMP-2), transforming growth factor beta 1 (TGF-β1), and osteocalcin; and histomorphometric evaluation of bone-to-implant contact (BIC) and mineralized bone area fraction within the threads of the implant. RESULTS ASU1 and ASU2 showed three times higher expression of BMP-2 and nine times higher expression of TGF-β1 compared with CTL (P < .05). Histomorphometric analysis, however, showed that both ASU1 and ASU2 groups presented significantly higher BIC values only in the cortical bone compartment when compared to CTL (P < .05). CONCLUSION ASU consumption seems to exert only a subtle effect on implant osseointegration.
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Spin-Neto R, Stavropoulos A, Coletti FL, Pereira LAVD, Marcantonio E, Wenzel A. Remodeling of cortical and corticocancellous fresh-frozen allogeneic block bone grafts - a radiographic and histomorphometric comparison to autologous bone grafts. Clin Oral Implants Res 2014; 26:747-52. [DOI: 10.1111/clr.12343] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2013] [Indexed: 01/04/2023]
Affiliation(s)
- Rubens Spin-Neto
- Department of Dentistry - Oral Radiology; Aarhus University; Aarhus Denmark
| | - Andreas Stavropoulos
- Department of Dentistry - Periodontology; Aarhus University; Aarhus Denmark
- Department of Periodontology; Faculty of Odontology; Malmö University; Malmö Sweden
| | - Felipe L. Coletti
- Department of Periodontology; UNESP - Univ. Estadual Paulista; Araraquara Dental School; Araraquara São Paulo Brazil
| | - Luís A. V. D. Pereira
- Department of Histology and Embryology; UNICAMP - State University of Campinas; Institute of Biology; Campinas São Paulo Brazil
| | - Elcio Marcantonio
- Department of Periodontology; UNESP - Univ. Estadual Paulista; Araraquara Dental School; Araraquara São Paulo Brazil
| | - Ann Wenzel
- Department of Dentistry - Oral Radiology; Aarhus University; Aarhus Denmark
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Esteves JC, Marcantonio E, de Souza Faloni AP, Rocha FRG, Marcantonio RA, Wilk K, Intini G. Dynamics of bone healing after osteotomy with piezosurgery or conventional drilling - histomorphometrical, immunohistochemical, and molecular analysis. J Transl Med 2013; 11:221. [PMID: 24053147 PMCID: PMC3868312 DOI: 10.1186/1479-5876-11-221] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2013] [Accepted: 09/10/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Piezosurgery is an osteotomy system used in medical and dental surgery. Many studies have proven clinical advantages of piezosurgery in terms of quality of cut, maneuverability, ease of use, and safety. However, few investigations have tested its superiority over the traditional osteotomy systems in terms of dynamics of bone healing. Therefore, the aim of this study was to evaluate the dynamics of bone healing after osteotomies with piezosurgery and to compare them with those associated to traditional bone drilling. METHODS One hundred and ten rats were divided into two groups with 55 animals each. The animals were anesthetized and the tibiae were surgically exposed to create defects 2 mm in diameter by using piezosurgery (Piezo group) and conventional drilling (Drill group). Animals were sacrificed at 3, 7, 14, 30 and 60 days post-surgery. Bone samples were collected and processed for histological, histomorphometrical, immunohistochemical, and molecular analysis. The histological analysis was performed at all time points (n = 8) whereas the histomorphometrical analysis was performed at 7, 14, 30 and 60 days post-surgery (n = 8). The immunolabeling was performed to detect Vascular Endothelial Growth Factor (VEGF), Caspase-3 (CAS-3), Osteoprotegerin (OPG), Receptor Activator of Nuclear Factor kappa-B Ligand (RANKL), and Osteocalcin (OC) at 3, 7, and 14 days (n = 3). For the molecular analysis, animals were sacrificed at 3, 7 and 14 days, total RNA was collected, and quantification of the expression of 21 genes related to BMP signaling, Wnt signaling, inflammation, osteogenenic and apoptotic pathways was performed by qRT-PCR (n = 5). RESULTS Histologically and histomorphometrically, bone healing was similar in both groups with the exception of a slightly higher amount of newly formed bone observed at 30 days after piezosurgery (p < 0.05). Immunohistochemical and qRT-PCR analyses didn't detect significant differences in expression of all the proteins and most of the genes tested. CONCLUSIONS Based on the results of our study we conclude that in a rat tibial bone defect model the bone healing dynamics after piezosurgery are comparable to those observed with conventional drilling.
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Affiliation(s)
- Jônatas Caldeira Esteves
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine - Harvard University, 188 Longwood Avenue, Boston, MA 02115 - REB 403, USA.
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de Freitas RM, Susin C, Spin-Neto R, Marcantonio C, Wikesjö UME, Pereira LAVD, Marcantonio E. Horizontal ridge augmentation of the atrophic anterior maxilla using rhBMP-2/ACS or autogenous bone grafts: a proof-of-concept randomized clinical trial. J Clin Periodontol 2013; 40:968-75. [DOI: 10.1111/jcpe.12148] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/16/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Rubens Moreno de Freitas
- Department of Diagnosis and Surgery - Periodontics; UNESP - Univ Estadual Paulista, Araraquara Dental School; Araraquara SP Brazil
- Laboratory for Applied Periodontal & Craniofacial Regeneration; Departments of Periodontics and Oral Biology; College of Dental Medicine; Augusta GA USA
| | - Cristiano Susin
- Laboratory for Applied Periodontal & Craniofacial Regeneration; Departments of Periodontics and Oral Biology; College of Dental Medicine; Augusta GA USA
- Department of Orthopedics, Medical College of Georgia; Georgia Regents University; Augusta GA USA
| | - Rubens Spin-Neto
- Department of Diagnosis and Surgery - Periodontics; UNESP - Univ Estadual Paulista, Araraquara Dental School; Araraquara SP Brazil
- Department of Dentistry; Oral Radiology; Aarhus University; Aarhus; Denmark
| | - Claudio Marcantonio
- Department of Diagnosis and Surgery - Periodontics; UNESP - Univ Estadual Paulista, Araraquara Dental School; Araraquara SP Brazil
| | - Ulf M. E. Wikesjö
- Laboratory for Applied Periodontal & Craniofacial Regeneration; Departments of Periodontics and Oral Biology; College of Dental Medicine; Augusta GA USA
- Department of Orthopedics, Medical College of Georgia; Georgia Regents University; Augusta GA USA
| | | | - Elcio Marcantonio
- Department of Diagnosis and Surgery - Periodontics; UNESP - Univ Estadual Paulista, Araraquara Dental School; Araraquara SP Brazil
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Kido HW, Ribeiro DA, de Oliveira P, Parizotto NA, Camilo CC, Fortulan CA, Marcantonio E, da Silva VHP, Renno ACM. Biocompatibility of a porous alumina ceramic scaffold coated with hydroxyapatite and bioglass. J Biomed Mater Res A 2013; 102:2072-8. [PMID: 23894045 DOI: 10.1002/jbm.a.34877] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 06/21/2013] [Accepted: 07/12/2013] [Indexed: 11/08/2022]
Abstract
This study aimed to evaluate the osteointegration and genotoxic potential of a bioactive scaffold, composed of alumina and coated with hydroxyapatite and bioglass, after their implantation in tibias of rats. For this purpose, Wistar rats underwent surgery to induce a tibial bone defect, which was filled with the bioactive scaffolds. Histology analysis (descriptive and morphometry) of the bone tissue and the single-cell gel assay (comet) in multiple organs (blood, liver, and kidney) were used to reach this aim after a period of 30, 60, 90, and 180 days of material implantation. The main findings showed that the incorporation of hydroxyapatite and bioglass in the alumina scaffolds produced a suitable environment for bone ingrowth in the tibial defects and did not demonstrate any genotoxicity in the organs evaluated in all experimental periods. These results clearly indicate that the bioactive scaffolds used in this study present osteogenic potential and still exhibit local and systemic biocompatibility. These findings are promising once they convey important information about the behavior of this novel biomaterial in biological system and highlight its possible clinical application.
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Affiliation(s)
- Hueliton Wilian Kido
- Department of Physiotherapy, Post-Graduate Program of Biotechnology, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
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Conte Neto N, Spolidorio LC, Andrade CR, S Bastos A, Guimarães M, Marcantonio E. Experimental development of bisphosphonate-related osteonecrosis of the jaws in rodents. Int J Exp Pathol 2013; 94:65-73. [PMID: 23317355 DOI: 10.1111/iep.12007] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Accepted: 10/05/2012] [Indexed: 11/28/2022] Open
Abstract
Osteonecrosis of the jaw (ONJ) following the use of bisphosphonates has become of increased interest in the scientific community, due in particular to its as-yet-unsolved pathogenesis. An experimental model of ONJ was induced in normal male rats [alendronate (ALN); 1 mg/Kg/day; n = 10] and matched controls (saline solution; n = 10). After 60 days of drug treatment, all animals were subjected to extractions of the left first lower molars and were euthanized at 3 and 28 days postsurgery. The following analyses were performed: (i) descriptive and quantitative (scores) histological evaluation, (ii) stereometry of distal sockets and (iii) biochemical measurement of C-telopeptide cross-linked collagen type I (CTX) and bone-specific alkaline phosphatase (BALP). The results showed that 28 days postsurgery the animals treated with ALN had areas of exposed and necrotic bone, associated with significant infection, especially in the interalveolar septum area and crestal regions, compared with controls. The levels of CTX, BALP and bone volume, as well as the degrees of inflammation and vascularization, were significantly reduced in these animals. Therefore, analysis of the data presented suggests that ALN therapy is associated with the development of osteonecrosis in the jaws of rodents after tooth extraction.
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Affiliation(s)
- Nicolau Conte Neto
- Division of Periodontology, Department of Diagnosis and Surgery, School of Dentistry, UNESP- Univ. Estadual Paulista, Araraquara, SP, Brazil
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Conte Neto N, de Andrade CR, Spolidorio LC, Planeta CDS, Cruz FC, de Souza Bastos A, Marcantonio E. Effects of Chronic Stress and Alendronate Therapy on the Osseointegration of Titanium Implants. Clin Implant Dent Relat Res 2013; 16:762-71. [DOI: 10.1111/cid.12046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Nicolau Conte Neto
- Division of Periodontology; Department of Diagnosis and Surgery; School of Dentistry; UNESP - Univ. Estadual Paulista; Araraquara Brazil
| | - Cleverton Roberto de Andrade
- Division of Pathology; Department of Physiology and Pathology; School of Dentistry; UNESP - Univ. Estadual Paulista; Araraquara Brazil
| | - Luis Carlos Spolidorio
- Division of Pathology; Department of Physiology and Pathology; School of Dentistry; UNESP - Univ. Estadual Paulista; Araraquara Brazil
| | - Cleópatra da Silva Planeta
- Laboratory of Pharmacology; School of Pharmaceutical Sciences; UNESP - Univ. Estadual Paulista; Araraquara Brazil
| | - Fábio Cardoso Cruz
- Laboratory of Pharmacology; School of Pharmaceutical Sciences; UNESP - Univ. Estadual Paulista; Araraquara Brazil
| | - Alliny de Souza Bastos
- Division of Periodontology; Department of Diagnosis and Surgery; School of Dentistry; UNESP - Univ. Estadual Paulista; Araraquara Brazil
| | - Elcio Marcantonio
- Division of Periodontology; Department of Diagnosis and Surgery; School of Dentistry; UNESP - Univ. Estadual Paulista; Araraquara Brazil
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Vermeersch SGG, de Hoon J, De Saint-Hubert B, Derdelinckx I, Serdons K, Bormans G, Reynders T, Declercq R, De Lepeleire I, Kennedy W, Blanchard R, Marcantonio E, Hargreaves R, Li CC, Sanabria S, Hostetler E, Joshi A, Evelhoch J, Van Laere K. PET imaging in healthy subjects and migraineurs suggests CGRP receptor antagonists do not have to act centrally to achieve clinical efficacy. J Headache Pain 2013. [DOI: 10.1186/1129-2377-14-s1-p224] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Rosetti EP, Marcantonio E, Zuza EP, Marcantonio RA. Root coverage stability of the subepithelial connective tissue graft and guided tissue regeneration: A 30-month follow-up clinical trial. J Dent 2013; 41:114-20. [DOI: 10.1016/j.jdent.2012.05.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Revised: 05/15/2012] [Accepted: 05/18/2012] [Indexed: 11/17/2022] Open
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Spin-Neto R, Stavropoulos A, Coletti FL, Faeda RS, Pereira LAVD, Marcantonio E. Graft incorporation and implant osseointegration following the use of autologous and fresh-frozen allogeneic block bone grafts for lateral ridge augmentation. Clin Oral Implants Res 2013; 25:226-33. [DOI: 10.1111/clr.12107] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2012] [Indexed: 01/05/2023]
Affiliation(s)
- Rubens Spin-Neto
- Department of Periodontology; UNESP - University Estadual Paulista; Araraquara Dental School; Araraquara São Paulo Brazil
- Department of Dentistry - Oral Radiology; Aarhus University; Aarhus Denmark
- Department of Dentistry - Periodontology; School of Dentistry; Aarhus University; Aarhus Denmark
| | - Andreas Stavropoulos
- Center for Experimental and Preclinical Biomedical Research (CEPBR); Athens Greece
| | - Felipe Leite Coletti
- Department of Periodontology; UNESP - University Estadual Paulista; Araraquara Dental School; Araraquara São Paulo Brazil
- Department of Dentistry - Oral Radiology; Aarhus University; Aarhus Denmark
- Department of Dentistry - Periodontology; School of Dentistry; Aarhus University; Aarhus Denmark
| | - Rafael Silveira Faeda
- Department of Implantology; UNIARA - Araraquara University; Araraquara São Paulo Brazil
| | | | - Elcio Marcantonio
- Department of Periodontology; UNESP - University Estadual Paulista; Araraquara Dental School; Araraquara São Paulo Brazil
- Department of Dentistry - Oral Radiology; Aarhus University; Aarhus Denmark
- Department of Dentistry - Periodontology; School of Dentistry; Aarhus University; Aarhus Denmark
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de Melo WM, de Oliveira FS, Marcantonio E, Beloti MM, de Oliveira PT, Rosa AL. Autogenous bone combined with anorganic bovine bone for maxillary sinus augmentation: analysis of the osteogenic potential of cells derived from the donor and the grafted sites. Clin Oral Implants Res 2013; 25:603-9. [PMID: 23289911 DOI: 10.1111/clr.12100] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2012] [Indexed: 11/30/2022]
Abstract
OBJECTIVES This study aimed to comparatively evaluate the in vitro osteogenic potential of cells obtained from the mandibular ramus (MR, autogenous bone donor site) and from the maxillary sinus (MS) bone grafted with a mixture of anorganic bovine bone (ABB) and MR prior to titanium implant placement (MS, grafted implant site). MATERIAL AND METHODS Cells were obtained from three patients subjected to MS floor augmentation with a 1 : 1 mixture of ABB (GenOx Inorg(®) ) and MR. At the time of the sinus lift procedure and after 8 months, prior to implant placement, bone fragments were taken from MR and MS, respectively, and subjected to trypsin-collagenase digestion for primary cell culturing. Subcultured cells were grown under osteogenic condition for up to 21 days and assayed for proliferation/viability, osteoblast marker mRNA levels, alkaline phosphatase (ALP) activity and calcium content/Alizarin red staining. ALP activity was also determined in primary explant cultures exposed to GenOx Inorg(®) (1 : 1 with MR) for 7 days. Data were compared using either the Mann-Whitney U-test or the Kruskal-Wallis test. RESULTS MS cultures exhibited a significantly lower osteogenic potential compared with MR cultures, with a progressive increase in cell proliferation together with a decrease in osteoblast markers, reduced ALP activity and calcium content. Exposure of MR-derived primary cultures to GenOx Inorg(®) inhibited ALP activity. CONCLUSION These results suggest that the use of GenOx Inorg(®) in combination with MR fragments for MS floor augmentation inhibits the osteoblast cell differentiation at the implant site in the long term.
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Affiliation(s)
- Willian M de Melo
- School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
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Vermeersch SGG, de Hoon J, De Saint-Hubert B, Derdelinckx I, Serdons K, Bormans G, Reynders T, Declercq R, De Lepeleire I, Kennedy W, Blanchard R, Marcantonio E, Hargreaves R, Li CC, Sanabria S, Hostetler E, Joshi A, Evelhoch J, Van Laere K. PET imaging in healthy subjects and migraineurs suggests CGRP receptor antagonists do not have to act centrally to achieve clinical efficacy. J Headache Pain 2013. [PMCID: PMC3620296 DOI: 10.1186/1129-2377-1-s14-p224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- SGG Vermeersch
- Center for Clinical Pharmacology, Campus Gasthuisberg, University Hospitals Leuven (KU Leuven), Leuv, Belgium
| | - J de Hoon
- Center for Clinical Pharmacology, Campus Gasthuisberg, University Hospitals Leuven (KU Leuven), Leuv, Belgium
| | - B De Saint-Hubert
- Center for Clinical Pharmacology, Campus Gasthuisberg, University Hospitals Leuven (KU Leuven), Leuv, Belgium
| | - I Derdelinckx
- Center for Clinical Pharmacology, Campus Gasthuisberg, University Hospitals Leuven (KU Leuven), Leuv, Belgium
| | - K Serdons
- Nuclear Medicine Department, UZ and KU Leuven, Belgium
| | - G Bormans
- Laboratory for Radiopharmacy, KU Leuven, Belgium
| | - T Reynders
- Merck Sharp & Dohme (Europe) Inc., Brussels, Belgium
| | - R Declercq
- Merck Sharp & Dohme (Europe) Inc., Brussels, Belgium
| | | | - W Kennedy
- Merck Research Laboratories, Upper Gwynedd PA, USA
| | - R Blanchard
- Merck Research Laboratories, Upper Gwynedd PA, USA
| | | | | | - CC Li
- Merck Research Laboratories, West Point PA, USA
| | - S Sanabria
- Merck Research Laboratories, West Point PA, USA
| | - E Hostetler
- Merck Research Laboratories, West Point PA, USA
| | - A Joshi
- Merck Research Laboratories, West Point PA, USA
| | - J Evelhoch
- Merck Research Laboratories, West Point PA, USA
| | - K Van Laere
- Nuclear Medicine Department, UZ and KU Leuven, Belgium
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