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Camacho-Alonso F, Mercado-Díaz AM, Rivas-Ballester R, Bernabeu-Mira JC, Peñarrocha-Oltra D, Del Rosario Tudela-Mulero M. Randomized split-mouth clinical trial comparing osteoblastic activity and osteogenic potential of autogenous particle harvesting during implant surgery without irrigation and with irrigation. Clin Implant Dent Relat Res 2024; 26:795-808. [PMID: 38922797 DOI: 10.1111/cid.13355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 05/29/2024] [Accepted: 06/01/2024] [Indexed: 06/28/2024]
Abstract
OBJECTIVE To compare the osteoblastic activity and osteogenic potential of autogenous particle harvesting during implant surgery using low-speed drilling without irrigation and high-speed drilling with irrigation. MATERIALS AND METHODS Thirty patients with bilateral missing teeth of 3.6 and 4.6 were randomized into two groups (Group 1: low-speed drilling without irrigation and Group 2: high-speed drilling with irrigation) and 60 single dental implants were placed. The temperature at the tip of each drill was recorded and the harvested bone was weighed; particle size and Ca and P levels were also analyzed. After osteoblast culture, cell viability, cell cycle assay, cell migration, vascular endothelial growth factor (VEGF) concentration, and mineralized nodule formation were assessed. RESULTS Although the temperature of the drills was slightly higher in Group 1, no statistically significant differences were observed (p ≤ 0.05); however, the amount of harvested bone was higher (p < 0.001) and the size of the particles was higher (p = 0.019). In relation to osteoblastic activity and osteogenic potential, higher cell proliferation, higher number of cells in G2/M and S phases, higher cell migration capacity, higher VEGF concentration, and higher amount of mineralized nodule formation were observed in Group 1. CONCLUSIONS Low-speed drilling without irrigation does not result in a significant increase in bone temperature compared to conventional drilling. However, a greater amount of bone is obtained; in addition, osteoblastic activity and osteogenic potential are higher with this technique, but further clinical studies are necessary.
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Mohsenifard S, Mashayekhan S, Safari H. A hybrid cartilage extracellular matrix-based hydrogel/poly (ε-caprolactone) scaffold incorporated with Kartogenin for cartilage tissue engineering. J Biomater Appl 2023; 37:1243-1258. [PMID: 36217954 DOI: 10.1177/08853282221132987] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Despite extensive studies, hydrogels are unable to meet the mechanical and biological requirements for successful outcomes in cartilage tissue engineering. In the present study, beta cyclodextrin (β-CD)-modified alginate/cartilage extracellular matrix (ECM)-based interpenetrating polymer network (IPN) hydrogel was developed for sustained release of Kartogenin (KGN). Furthermore, the hydrogel was incorporated within a 3D-printed poly (ε-caprolactone) (PCL)/starch microfiber network in order to reinforce the construct for cartilage tissue engineering. All the synthesized compounds were characterized by H1-NMR spectroscopy. The hydrogel/microfiber composite with a microfiber strand size and strand spacing of 300 μm and 2 mm, respectively showed a compressive modulus of 17.2 MPa, resembling the properties of the native cartilage tissue. Considering water uptake capacity, degradation rate, mechanical property, cell cytotoxicity and glycosaminoglycan secretions, β-CD-modified hydrogel reinforced with printed PCL/starch microfibers with controlled release of KGN may be considered as a promising candidate for using in articular cartilage defects.
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Affiliation(s)
- Sadaf Mohsenifard
- Chemical and Petroleum Engineering Department, 68260Sharif University of Technology, Tehran, Iran
| | - Shohreh Mashayekhan
- Chemical and Petroleum Engineering Department, 68260Sharif University of Technology, Tehran, Iran
| | - Hanieh Safari
- Chemical and Petroleum Engineering Department, 68260Sharif University of Technology, Tehran, Iran
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Ozcan M, Salimov F, Temmerman A, Ucak Turer O, Alkaya B, Haytac CM. Evaluation of Different Osteotomy Drilling Speed Protocols on Cortical Bone Temperature, Implant Stability and Bone Healing: An Experimental Animal Study. J ORAL IMPLANTOL 2020; 48:3-8. [PMID: 33270867 DOI: 10.1563/aaid-joi-d-20-00228] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of this study was to measure the effect of drilling speed on heat generation in the cortical bone, on primary and secondary implant stability of implants and on early and late bone healing with micro-computed tomography (micro-CT). Sixty implants were placed in the iliac crest of six sheep in order to form 5 different drilling protocols: 50rpm without saline cooling, and 400rpm, 800rpm, 1200rpm and 2000rpm with saline cooling. Simultaneous cortical bone temperature and primary stability at the time of placement; secondary stability and the ratio between relative bone and tissue volume (BV/TV) in 2D and 3D in micro-CT analysis were evaluated after 4 and 8 weeks. The 50rpm group had the highest cortical bone temperature and the longest operation duration with the highest primary stability. Slightly higher values of secondary stability (T2) and subsequent 2D and 3D BV/TV values were found in 1200 rpm with irrigation at 8 weeks. All groups had sufficient ISQ values at 8 weeks for loading although the micro-CT analysis showed varying percentages of bone tissue around implants. The influence of drill speed for implant osteotomy and its irrigation is minimal when it comes to changes in temperature of the cortical bone, primary and secondary implant stability and BV/TV.
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Affiliation(s)
- Mustafa Ozcan
- Cukurova Universitesi Dis Hekimligi Fakultesi Assistant Professor Periodontology Balcali TURKEY Adana Adana 01330 Cukurova Universitesi Dis Hekimligi Fakultesi
| | - Fariz Salimov
- Cukurova University, Faculty of Dentistry, Department of Maxillofacial Surgery, Turkey
| | - Andy Temmerman
- KU Leuven University, Faculty of Dentistry, Department of Oral Health Sciences, Belgium
| | - Onur Ucak Turer
- Cukurova University, Faculty of Dentistry, Department of Periodontology, Turkey
| | - Bahar Alkaya
- Cukurova University, Faculty of Dentistry, Department of Periodontology, Turkey
| | - Cenk Mehmet Haytac
- Cukurova University, Faculty of Dentistry, Department of Periodontology, Turkey
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Comparative Analysis of Bone Tissue Temperature during Implant Preparation with Variable Drilling Parameters: In Vitro Study. BIOMED RESEARCH INTERNATIONAL 2020. [DOI: 10.1155/2020/7420718] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Purpose. The aim of this work was to compare the temperature fluctuations that occur during the development of the implant bed using three different implant systems and the impact on their value of cooling method and rotational speed of drill. Material and Methods. As a model of the human jaw due to the analogy of bone structure and hardness, pig ribs were used. Drills from three different implant systems were used in the study: Straumann® (Straumann GmbH, Basel, Switzerland), AnyRidge® (Megagen Implant Co., Ltd., Daegu, South Korea), and Osstem (OSSTEM IMPLANT CO., LTD., Seoul, South Korea). The sequence of three successive drills was given—from pilot drill to final drill. For each system, a group with two water cooling methods, without cooling, and three different speed ranges, 800, 1200, and 1500 rpm, and their effect on temperature fluctuations was evaluated. The temperature was measured by thermography. Results. The highest temperature increases were noted during preparation with pilot drills. The maximum temperature (50.8°C) was noted for the AnyRidge pilot drill at 1500 rpm without cooling. When cooling with physiological saline, none of the applied drills exceeded 28°C. Significant differences between lack of cooling and cooling with saline at 20°C and 3°C have been demonstrated. During preparation with cooling, the difference between the times of the maximum temperature achievement was observed between AnyRidge® and Osstem (2.6 vs. 1.6 s, p=0.004). Conclusion. The experiment showed that the drills of the tested implant systems differed in the amount of heat generated during operation. The temperature of the cooling solution and the rotational speed applied have an influence on its amount.
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The Influence of Thrust Force on the Vitality of Bone Chips Harvested for Autologous Augmentation during Dental Implantation. MATERIALS 2019; 12:ma12223695. [PMID: 31717506 PMCID: PMC6888375 DOI: 10.3390/ma12223695] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/04/2019] [Accepted: 11/07/2019] [Indexed: 02/03/2023]
Abstract
Bone drill chips that are collected during implant site preparation can be reused as autologous bone-grafting material for alveolar ridge augmentation. This study characterized five market-leading implant drill sets regarding their geometric properties and ability to produce vital bone chips. The drill geometry of each tool of five commercial implant drill sets was characterized while using optical profile projector devices and SEM. Bone chips were collected during the in vitro preparation of porcine jaw bone with the various drill sets. Produced bone chip masses were measured. The bone chips were cultured in vitro and the number of outgrown cells was determined and measurand for vitality. Furthermore, the thrust force and cutting torque were recorded to examine the mechanical loads of the manual drilling process. The tool geometry and set configuration of one out of five implant drill sets appears to be superior regarding chip mass, vitality, and thrust force. It could be proven that there is a correlation between vitality and thrust force. The thrust force is influenced by the cutting behavior of the tool, which in turn depends on the geometry of the tool. The tool geometry has an influence on the vitality of the augmentation material due to this relationship.
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Montero-Aguilar M, Sibaja-Ruiz L, Avendaño E, Pereira-Reyes R, Pozos-Guillén A, Chavarria-Bolaños D. Evaluation of Surgical Bur Deformation and Bone Surface Roughness After Multiple Uses. J Oral Maxillofac Surg 2019; 77:1894-1903. [PMID: 31078560 DOI: 10.1016/j.joms.2019.04.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 04/09/2019] [Accepted: 04/09/2019] [Indexed: 10/27/2022]
Abstract
PURPOSE The aim of the present in vitro study was to microscopically evaluate and describe the deformation of Lindeman surgical burs and the bone surface roughness after repeated osteotomies and sterilization cycles. MATERIALS AND METHODS Twenty-one Lindeman surgical burs were analyzed under scanning electron microscopy (SEM) to evaluate the damage of the bur's integrity after 0, 1, 3, 5, 7, or 9 osteotomies on bovine ribs. Eighteen bone specimens were obtained after osteotomy for roughness analysis using profilometry. One-way analysis of variance was used to compare the mean roughness values across the experimental groups, and P ≤ .05 was considered to indicate statistical significance. RESULTS Representative SEM images illustrated that all analyzed burs presented with some type of deformation at both the tip and the body, even after their first use. The mean roughness values were independent of the number of uses (P > .05); however, the standard deviation increased with the number of uses of the burs. CONCLUSIONS These results suggest that even after their first use, rotatory surgical burs will have some type of deformation and that their cutting efficiency on the bone will vary and will be difficult to predict.
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Affiliation(s)
| | - Laura Sibaja-Ruiz
- Resident, Advanced General Dentistry Program, Universidad de Costa Rica, San José, Costa Rica
| | - Esteban Avendaño
- Director and Researcher, Materials Science and Engineering Research Center, Universidad de Costa Rica, San José, Costa Rica
| | - Reinaldo Pereira-Reyes
- Researcher, National Nanotechnology Laboratory, Centro Nacional de Alta Tecnología, San José, Costa Rica
| | - Amaury Pozos-Guillén
- Professor-Researcher, Basic Sciences Laboratory, Facultad de Estomatología, Universidad Autónoma de San Luis Potosí, San Luis Potosí
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Comparison of the Bone Harvesting Capacity of an Intraoral Bone Harvesting Device and Three Different Implant Drills. BIOMED RESEARCH INTERNATIONAL 2018; 2017:7819080. [PMID: 29387724 PMCID: PMC5745681 DOI: 10.1155/2017/7819080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 11/23/2017] [Indexed: 12/02/2022]
Abstract
The aim of the present study was to compare bone-collecting capacity of bone harvesting device and minimally irrigated low-speed drilling using three implant systems. One bone harvesting device and three commercially available drill systems were compared using the osteotomies on bovine rib bones. The amount of the collected bone particle and particle size (<500 μm: small, 500–1000 μm: medium, and >1000 μm: large) were measured. Total wet (1.535 ± 0.232 mL) and dry volume (1.147 ± 0.425 mL) of the bone particles from bone harvesting device were significantly greater than three drill systems (wet volume: 1.225 ± 0.187–1.27 ± 0.29 mL and dry volume: 0.688 ± 0.163–0.74 ± 0.311 mL) (P < 0.05). In all groups, the amount of large sized particles in wet and dry state was the greatest compared to that of medium and small particles. The dry weight of the bone particles showed the same tendency to volumetric measurement. In conclusion, total bone particles and large sized particles (>1000 μm) were harvested significantly greater by bone harvesting device than minimally irrigated low-speed drilling. The composition of particle size in all harvesting methods was similar to each other.
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Marheineke N, Scherer U, Rücker M, von See C, Rahlf B, Gellrich NC, Stoetzer M. Evaluation of accuracy in implant site preparation performed in single- or multi-step drilling procedures. Clin Oral Investig 2017; 22:2057-2067. [DOI: 10.1007/s00784-017-2312-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 12/12/2017] [Indexed: 01/06/2023]
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Conward M, Samuel J. Machining characteristics of the haversian and plexiform components of bovine cortical bone. J Mech Behav Biomed Mater 2016; 60:525-534. [DOI: 10.1016/j.jmbbm.2016.03.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 03/15/2016] [Accepted: 03/17/2016] [Indexed: 11/17/2022]
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Abboud M, Delgado-Ruiz RA, Kucine A, Rugova S, Balanta J, Calvo-Guirado JL. Multistepped Drill Design for Single-Stage Implant Site Preparation: Experimental Study in Type 2 Bone. Clin Implant Dent Relat Res 2014; 17 Suppl 2:e472-85. [PMID: 25263993 DOI: 10.1111/cid.12273] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
PURPOSE To evaluate an experimental multistepped drill for single-stage implant site preparation by means of real-time analysis of thermal variations during and postdrilling, and by implant stability evaluation. MATERIALS AND METHODS Temperature and time were recorded in real time by paired microprobe thermocouples during simulated osteotomy in type 2 bone similes at the cortical and cancellous zones. Three different drilling groups with a new multistepped drill design were compared: Control (2-mm diameter pilot drill + 3.3-mm three-stepped drill + 4.1-mm three-stepped drill); Test A (3.3-mm three-stepped drill); and Test B (4.1-mm three-stepped drill). Implants were inserted, and implant stability was evaluated with the Perio Test Value (PTV). Two-way anova was used to test the independent effects of osteotomy and implant diameter on temperature and stability. RESULTS All the drills induced thermal changes without significant differences between groups (p > .05). Drilling in cortical bone produced significant increase of the temperatures in a range of 1.8 ± 0.9°C compared with drilling in cancellous bone (p < .05). ΔT temperatures were significantly higher for test groups in cortical and cancellous bone (p < .05); ΔT10 for all groups showed a reduction of the temperature in a range of 1.7 ± 0.3°C without significant differences between groups (p > .05); the mean time to accomplish drilling was significantly longer in the control group (p < .05); test groups took 10 ± 0.3 seconds less to reach the required drilling depth. PTV values were higher in test groups compared with controls (p < .05). CONCLUSIONS The multistepped drills used for single-stage implant site preparation Increase temperature as in comparison with a conventional incremental protocol; Induce the temperature increment in cortical bone compared with the cancellous bone; Reduce drilling time when a multistepped drill is used alone; and Increase implant stability twofold compared with a conventional incremental protocol.
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Affiliation(s)
- Marcus Abboud
- Department of Prosthodontics and Digital Technology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Rafael Arcesio Delgado-Ruiz
- Department of Prosthodontics and Digital Technology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Allan Kucine
- Department of Oral Surgery, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Sihana Rugova
- Department of Prosthodontics and Digital Technology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Julian Balanta
- Department of Prosthodontics, Faculty of Dentistry, Universidad del Valle, Cali, Colombia
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