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1.
Zhongguo Yi Liao Qi Xie Za Zhi ; 45(2): 200-204, 2021 Apr 08.
Artículo en Chino | MEDLINE | ID: mdl-33825382

RESUMEN

OBJECTIVE: This paper introduces the key content and background of Technical Review Guidance for the Registration of Personalized Additive Manufacturing Medical Devices of Passive Implantable Bone, Joint and Oral Hard Tissues. METHODS: The core contents and importance of the construction of personalized design validation and verification and additive manufacturing system are described respectively. RESULTS: The personalized design needs to be carried out under the control of interactive cooperation between healthcare professional and engineer. And the performance of personalized device must be validated and verified completely. At the same time, in view of the particularity of the quality management system of additive manufacturing, the technical focus is expounded. CONCLUSIONS: New ideas and methods shall be used in evaluate and administrate personalized additive manufacturing medical device.


Asunto(s)
Impresión Tridimensional , Prótesis e Implantes
2.
Schweiz Arch Tierheilkd ; 163(3): 219-225, 2021 Mar.
Artículo en Alemán | MEDLINE | ID: mdl-33650522

RESUMEN

INTRODUCTION: Based on a donation of more than 1000 Swiss dog license tags to the museum of veterinary medical history in Zurich, historic dog license taxes and tags are compared between Switzerland and other European countries. In 2006 the microchip was launched as mandatory identification for dogs in Switzerland and dog license tags became redundant.


Asunto(s)
Sistemas de Identificación Animal/veterinaria , Perros , Prótesis e Implantes/veterinaria , Impuestos , Sistemas de Identificación Animal/instrumentación , Animales , Suiza
3.
Sensors (Basel) ; 21(4)2021 Feb 18.
Artículo en Inglés | MEDLINE | ID: mdl-33670691

RESUMEN

The development of biomedical devices benefits patients by offering real-time healthcare. In particular, pacemakers have gained a great deal of attention because they offer opportunities for monitoring the patient's vitals and biological statics in real time. One of the important factors in realizing real-time body-centric sensing is to establish a robust wireless communication link among the medical devices. In this paper, radio transmission and the optimal characteristics for impedance matching the medical telemetry of an implant are investigated. For radio transmission, an integral coupling formula based on 3D vector far-field patterns was firstly applied to compute the antenna coupling between two antennas placed inside and outside of the body. The formula provides the capability for computing the antenna coupling in the near-field and far-field region. In order to include the effects of human implantation, the far-field pattern was characterized taking into account a sphere enclosing an antenna made of human tissue. Furthermore, the characteristics of impedance matching inside the human body were studied by means of inherent wave impedances of electrical and magnetic dipoles. Here, we demonstrate that the implantation of a magnetic dipole is advantageous because it provides similar impedance characteristics to those of the human body.


Asunto(s)
Prótesis e Implantes , Telemetría , Impedancia Eléctrica , Electricidad , Humanos
4.
Orthop Clin North Am ; 52(2): 167-175, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33752838

RESUMEN

Proximal humerus fractures (PHF) are a common orthopedic injury; however, their treatment remains largely controversial with evidence supporting a wide array of treatments. Although many injuries can be treated nonoperatively, there has been much debate about surgical management of PHF. A detailed review of the literature was performed relative to operative management options specifically related to implant choices. Although no definitive answers are available regarding best practice, there is literature to guide operative decision-making and implant selection based on both patient- and surgeon-specific factors.


Asunto(s)
Artroplastía de Reemplazo de Hombro , Toma de Decisiones Clínicas , Fijadores Externos , Fijación Interna de Fracturas , Prótesis e Implantes , Fracturas del Hombro/cirugía , Humanos , Diseño de Prótesis
5.
J Biomed Nanotechnol ; 17(1): 115-130, 2021 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-33653501

RESUMEN

The main goal of this research is to scrutinize the effect of texture and grain size on the biological response of hierarchical structured pure titanium (Ti), examining the interrelation between grain refinement mechanisms with texture variation. The hierarchical structure was produced using two methods of severe plastic deformation (SPD). The Ti specimens were first processed up to six passes by equal channel angular pressing (ECAP) and subsequently treated at the top surface using surface mechanical attrition treatment (SMAT). Microstructure examination by Electron backscatter diffraction (EBSD) indicates that the SMAT-treated surface was categorized into three distinct microstructural regions based on the type of grain refinement process involved during SPD: twin induced dynamic recrystallization (TDRX) and geometric dynamic recrystallization (GDRX) in the topmost surface, and continuous (CDRX) and discontinuous dynamic recrystallization (DDRX) in the lower regions of the sample. The biological experiments showed meaningful improvement in the cellular response of SMATed and ECAPed samples. It was demonstrated that grain refinement could have the capability of improving the biological response of Ti surface. In this regard, SMATed + 2ECAPed sample showed the best result although it has not the smallest grain size and the highest texture intensity. It was observed that texture and grain orientation of planes have an important impact on the biological response of pure Ti and dominance of prismatic (1010) texture can improve the cell viability, adhesion and its differentiation. Therefore, microstructure and texture tailoring through combined SPD methods could be a promising strategy for the improvement of the next generation of medical implants.


Asunto(s)
Prótesis e Implantes , Titanio , Supervivencia Celular , Ensayo de Materiales , Osteoblastos
6.
Nat Med ; 27(3): 480-490, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33723455

RESUMEN

Despite advances in technologies for cardiac repair after myocardial infarction (MI), new integrated therapeutic approaches still need to be developed. In this study, we designed a perfusable, multifunctional epicardial device (PerMed) consisting of a biodegradable elastic patch (BEP), permeable hierarchical microchannel networks (PHMs) and a system to enable delivery of therapeutic agents from a subcutaneously implanted pump. After its implantation into the epicardium, the BEP is designed to provide mechanical cues for ventricular remodeling, and the PHMs are designed to facilitate angiogenesis and allow for infiltration of reparative cells. In a rat model of MI, implantation of the PerMed improved ventricular function. When connected to a pump, the PerMed enabled targeted, sustained and stable release of platelet-derived growth factor-BB, amplifying the efficacy of cardiac repair as compared to the device without a pump. We also demonstrated the feasibility of minimally invasive surgical PerMed implantation in pigs, demonstrating its promise for clinical translation to treat heart disease.


Asunto(s)
Procedimientos Quirúrgicos Cardíacos/instrumentación , Infarto del Miocardio/terapia , Prótesis e Implantes , Animales , Materiales Biocompatibles , Diseño de Equipo , Neovascularización Fisiológica , Porcinos , Remodelación Ventricular
7.
Artículo en Chino | MEDLINE | ID: mdl-33730807

RESUMEN

Objective: To explore the feasibility of reconstruction of nasal tip with septal cartilage and auricular cartilage. Methods: From September 2018 to October 2019, 17 patients (two males and fifteen females) with low noses underwent rhinoplasty under general anesthesia. The age of the patients ranged from 19 to 39, with an average of 27 years old. Among them, all the 17 cases were primary rhinoplasty. During the operation, autologous nasal septum cartilage was used as septal extension graft to extend the caudal septum, and the auricular cartilage was used to enhance the stability of the strut and to elevate the tip for adjusting the shape of nose by making into spreader graft, columellar strut graft, derotation graft and onlay graft. The nasal dorsum was filled with polytetrafluoroethylene. Digital scanning technology was used to evaluate the nasal structure before and after operation. SPSS 22 software was used to analyze the data with paired t-test. Results: The follow-up was from 6 to 12 months, with an avaerge of 7.6 months. Seventeen patients were satisfied with postoperative nasal morphology and height. There was no infection, prosthesis displacement, skin flap necrosis, no auricle deformation and other complications. Statistical software SPSS 22 performed paired t-test on the preoperative and postoperative data obtained by digital technology: postoperative nasal length and nasal tip protrusion increased compared with that before surgery, and it was statistically significant(length:(3.60±0.77)mm, tip protrusion:(3.61±0.64)mm, t value was -19.203 and -23.132 respectively, both P<0.001). The nasolabial Angle was smaller than that before surgery, and the data were statistically significant(3.40°±2.11°,t=6.635, P<0.001). Conclusion: The nasal tip and nasal septum extension complex constructed by autogenous nasal septal cartilage combined with auricular cartilage can increase the length of nasal tip, increase the height of nasal tip and reduce the angle of nasolabial angle.


Asunto(s)
Rinoplastia , Adulto , Cartílago Auricular , Femenino , Humanos , Masculino , Cartílagos Nasales/cirugía , Tabique Nasal/cirugía , Nariz/cirugía , Prótesis e Implantes , Adulto Joven
9.
Bone Joint J ; 103-B(3): 423-429, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33641432

RESUMEN

Periprosthetic joint infection (PJI) is one of the most dreaded complications after arthroplasty surgery; thus numerous approaches have been undertaken to equip metal surfaces with antibacterial properties. Due to its antimicrobial effects, silver is a promising coating for metallic surfaces, and several types of silver-coated arthroplasty implants are in clinical use today. However, silver can also exert toxic effects on eukaryotic cells both in the immediate vicinity of the coated implants and systemically. In most clinically-used implants, silver coatings are applied on bulk components that are not in direct contact with bone, such as in partial or total long bone arthroplasties used in tumour or complex revision surgery. These implants differ considerably in the coating method, total silver content, and silver release rates. Safety issues, such as the occurrence of argyria, have been a cause for concern, and the efficacy of silver coatings in terms of preventing PJI is also controversial. The application of silver coatings is uncommon on parts of implants intended for cementless fixation in host bone, but this option might be highly desirable since the modification of implant surfaces in order to improve osteoconductivity can also increase bacterial adhesion. Therefore, an optimal silver content that inhibits bacterial colonization while maintaining osteoconductivity is crucial if silver were to be applied as a coating on parts intended for bone contact. This review summarizes the different methods used to apply silver coatings to arthroplasty components, with a focus on the amount and duration of silver release from the different coatings; the available experience with silver-coated implants that are in clinical use today; and future strategies to balance the effects of silver on bacteria and eukaryotic cells, and to develop silver-coated titanium components suitable for bone ingrowth. Cite this article: Bone Joint J 2021;103-B(3):423-429.


Asunto(s)
Antibacterianos/farmacología , Artroplastia , Materiales Biocompatibles Revestidos/farmacología , Prótesis e Implantes , Infecciones Relacionadas con Prótesis/prevención & control , Plata/farmacología , Humanos
10.
Santiago; MINSAL; mar. 2021. 19 p.
No convencional en Español | BIGG - guías GRADE | ID: biblio-1177290

RESUMEN

Favorecer el adecuado manejo clínico integral de las personas de 65 años y más, con diagnóstico de artrosis de cadera con limitación funcional severa que serán sometidos a una artroplastía total de cadera. Personas de 65 años y más, con diagnóstico de artrosis de cadera con limitación funcional severa, que reciben atención en el nivel primario, secundario y terciario de salud en el sector público y privado del territorio nacional.


Asunto(s)
Humanos , Anciano , Osteoartritis de la Cadera/diagnóstico , Osteoartritis de la Cadera/rehabilitación , Prótesis e Implantes
11.
J Laryngol Otol ; 135(2): 130-133, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33531092

RESUMEN

OBJECTIVE: The audiological benefits of a bone conducting hearing implant are well documented; however, there is a paucity of literature comparing pre- and post-operative quality of life benefits. This study assessed the quality of life status before and after the device is implanted. METHODS: A prospective study was conducted of all adult bone conducting hearing implants inserted in a teaching hospital between 2012 and 2017. All patients completed the Glasgow Health Status Inventory, a validated quality of life questionnaire, before and three to six months after implantation. RESULTS: Sixty-two patients received a unilateral bone conducting hearing implant. All scores except the social score improved post-operatively. The paired t-test showed that the differences in the means for the Glasgow Health Status Inventory total, general and physical scores were statistically significant at the 5 per cent level (p < 0.0001). CONCLUSION: This study, one of the few to assess quality of life pre- and post-implantation, showed a vast improvement in patients' perceived quality of life from the pre- to the post-operative phase.


Asunto(s)
Conducción Ósea/fisiología , Implantación Coclear/psicología , Pérdida Auditiva/cirugía , Prótesis e Implantes/efectos adversos , Calidad de Vida/psicología , Adulto , Anciano , Anciano de 80 o más Años , Implantación Coclear/métodos , Femenino , Audífonos/efectos adversos , Audífonos/estadística & datos numéricos , Humanos , Masculino , Persona de Mediana Edad , Percepción/fisiología , Periodo Posoperatorio , Periodo Preoperatorio , Estudios Prospectivos , Encuestas y Cuestionarios
12.
Medicine (Baltimore) ; 100(6): e24583, 2021 Feb 12.
Artículo en Inglés | MEDLINE | ID: mdl-33578557

RESUMEN

ABSTRACT: Lumbar disc prostheses have been used increasingly in recent years. The successful design of lumbar disc prostheses depends on accurate morphometric parameters. However, the morphologic dimensions of lumbar endplate area have not been investigated in Chinese population.A total of 1800 lumbar endplates were retrospectively accessed in 150 Chinese adults. Eighteen parameters of each lumbar segment were measured by three-dimensional computed tomography reconstructions from T12/L1 to L5/S1. These obtained parameters were compared between genders, bilateral sides, vertebral segments, and different populations.Endplate length and width increased in general, and there was a significant decrease for length/width ratio from T12 to S1 (P = .03). The average concavity depth of the lower lumbar endplate (2.09 ±â€Š0.93 mm) was usually larger than that of the upper lumbar endplate (1.61 ±â€Š0.74 mm) (P = .02). The percentage of the most concave point of the upper and lower lumbar endplate was 50.01 ±â€Š10.76% and 56.41 ±â€Š9.93%, respectively. Anterior, medium, or posterior intervertebral endplate height was severally 10.01 ±â€Š1.98 mm, 10.46 ±â€Š2.03 mm, and 6.41 ±â€Š1.74 mm, and increased among vertebral segments (P = .01).The intervertebral endplate angle significantly increased from T12-L1 to L5-S1 (P = .01). Parameters displayed significant difference between genders. The morphometric parameters of different populations also showed differences.In conclusion, there is a morphologic discrepancy in dimensions of lumbar endplate regarding genders, vertebral segments, and different populations. It is essential to design the lumbar disc prosthesis suited for Chinese patients specially, for which the morphometric parameters in our study can be utilized.


Asunto(s)
Disco Intervertebral , Vértebras Lumbares/diagnóstico por imagen , Prótesis e Implantes , Diseño de Prótesis , Adulto , Femenino , Humanos , Imagenología Tridimensional , Masculino , Persona de Mediana Edad , Valores de Referencia , Estudios Retrospectivos , Tomografía Computarizada por Rayos X , Adulto Joven
13.
Bone Joint J ; 103-B(2): 234-244, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33517726

RESUMEN

Antibiotic resistance represents a threat to human health. It has been suggested that by 2050, antibiotic-resistant infections could cause ten million deaths each year. In orthopaedics, many patients undergoing surgery suffer from complications resulting from implant-associated infection. In these circumstances secondary surgery is usually required and chronic and/or relapsing disease may ensue. The development of effective treatments for antibiotic-resistant infections is needed. Recent evidence shows that bacteriophage (phages; viruses that infect bacteria) therapy may represent a viable and successful solution. In this review, a brief description of bone and joint infection and the nature of bacteriophages is presented, as well as a summary of our current knowledge on the use of bacteriophages in the treatment of bacterial infections. We present contemporary published in vitro and in vivo data as well as data from clinical trials, as they relate to bone and joint infections. We discuss the potential use of bacteriophage therapy in orthopaedic infections. This area of research is beginning to reveal successful results, but mostly in nonorthopaedic fields. We believe that bacteriophage therapy has potential therapeutic value for implant-associated infections in orthopaedics. Cite this article: Bone Joint J 2021;103-B(2):234-244.


Asunto(s)
Artritis Infecciosa/terapia , Infecciones Bacterianas/terapia , Enfermedades Óseas Infecciosas/terapia , Dispositivos de Fijación Ortopédica/efectos adversos , Terapia de Fagos/métodos , Prótesis e Implantes/efectos adversos , Infecciones Relacionadas con Prótesis/terapia , Humanos , Resultado del Tratamiento
14.
Biomed Eng Online ; 20(1): 23, 2021 Feb 25.
Artículo en Inglés | MEDLINE | ID: mdl-33632226

RESUMEN

BACKGROUND: Precise visualization of meshes and their position would greatly aid in mesh shrinkage evaluation, hernia recurrence risk assessment, and the preoperative planning of salvage repair. Lightweight (LW) meshes are able to preserve abdominal wall compliance by generating less post-implantation fibrosis and rigidity. However, conventional 3D imaging techniques such as computed tomography (CT) and magnetic resonance imaging (MRI) cannot visualize the LW meshes. Patients sometimes have to undergo a second-look operation for visualizing the mesh implants. The goal of this work is to investigate the potential advantages of Automated 3D breast ultrasound (ABUS) pore texture analysis for implanted LW hernia mesh identification. METHODS: In vitro, the appearances of four different flat meshes in both ABUS and 2D hand-held ultrasound (HHUS) images were evaluated and compared. In vivo, pore texture patterns of 87 hernia regions were analyzed both in ABUS images and their corresponding HHUS images. RESULTS: In vitro studies, the imaging results of ABUS for implanted LW meshes are much more visualized and effective in comparison to HHUS. In vivo, the inter-class distance of 40 texture features was calculated. The texture features of 2D sectional plans (axial and sagittal plane) have no significant contribution to implanted LW mesh identification. Significant contribution was observed in coronal plane. However, since the mesh may have spatial variation such as shrinkage after implantation surgery, the inter-class distance of 3D coronal plane pore texture features are bigger than 2D coronal plane, so the contribution of 3D coronal plane pore texture features are more valuable than 2D coronal plane for implanted LW mesh identification. The use of 3D pore texture features significantly improved the robustness of the identification method in distinguishing between LW mesh and fascia. CONCLUSIONS: An innovative new ABUS provides additional pore texture visualization, by separating the LW mesh from the fascia tissues. Therefore, ABUS has the potential to provides more accurate features to characterize pore texture patterns, and ultimately provide more accurate measures for implanted LW mesh identification.


Asunto(s)
Pared Abdominal/diagnóstico por imagen , Hernia/diagnóstico por imagen , Procesamiento de Imagen Asistido por Computador/métodos , Reconocimiento de Normas Patrones Automatizadas , Mallas Quirúrgicas , Adulto , Anciano , Femenino , Análisis de Fourier , Hernia/terapia , Humanos , Imagenología Tridimensional , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Prótesis e Implantes , Ultrasonografía
15.
Medicina (B Aires) ; 81(1): 24-30, 2021.
Artículo en Español | MEDLINE | ID: mdl-33611241

RESUMEN

An adequate integration of the prosthetic materials used to repair abdominal wall defects is necessary for satisfactory outcomes. We aimed to evaluate, in an animal model, the biological behavior of meshes used for abdominal wall surgery. Four groups of 10 rats were separated. After laparotomy, intraperitoneal prostheses were placed: 1) Prolene® (polypropylene microporous, heavy-weight), 2) Ultrapro® (polypropylene + poliglecaprone, macroporous low-weight), 3) Proceed® (polypropylene + polidoxanone + regenerated oxidized cellulose, microporous medium-weight), 4) Physiomesh® (polypropylene + poliglecaprone, macroporous lowweight). Macroscopic and microscopic analyses were performed at 30 days. The results were evaluated by two independent observers and expressed in means with standard deviation. For statistical analysis p < 0.05 was considered significant. On macroscopic examination, mesh integration was greater than 75% in all cases. Microscopic analysis showed greater global inflammation and more multinucleated giant cells in Prolene® (p < 0.01). Less inflammatory cells were observed at the muscle-mesh interface in Physiomesh® vs. Ultrapro® (p < 0.05). Collagen fibers disposition was similar in all meshes, although, microporous meshes had higher collagen deposit in the interfilamentous spaces (p < 0.01). In conclusion, in our animal model, microporous and heavy-weight polypropylene meshes produce greater inflammatory and foreign body reaction. Thus, composite meshes would have greater biocompatibility and better tolerance by the host.


Asunto(s)
Pared Abdominal , Mallas Quirúrgicas , Pared Abdominal/cirugía , Animales , Ensayo de Materiales , Poliésteres , Prótesis e Implantes , Ratas , Mallas Quirúrgicas/efectos adversos
16.
Biomed Res Int ; 2021: 6653967, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33521128

RESUMEN

3D printing technology is widely used in the field of implantable medical device in recent decades because of its advantages in high precision, complex structure, and high material utilization. Based on the characteristics of 3D printing technology, this paper reviews the manufacturing process, materials, and some typical products of 3D printing implantable medical devices and analyzes and summarizes the development trend of 3D printed implantable medical devices.


Asunto(s)
Impresión Tridimensional , Prótesis e Implantes , Diseño de Prótesis/métodos , Tecnología Farmacéutica/métodos , Materiales Biocompatibles , Prótesis Vascular , Cerámica , Humanos , Prótesis Articulares , Rayos Láser , Ortopedia , Polímeros/química , Stents
17.
BMJ Case Rep ; 14(2)2021 Feb 04.
Artículo en Inglés | MEDLINE | ID: mdl-33541940

RESUMEN

A 25-year-old man presented with decreased vision in both eyes, approximately 4 years following bilateral bright ocular cosmetic iris implantation. On examination, he was found to have bilateral elevated intraocular pressures, anterior chamber cells and flare, chronic peripheral anterior synechiae and significantly reduced endothelial cell counts. Ultrasound biomicroscopy demonstrated compression of the peripheral iris, resulting in synechial angle closure in both eyes. Surgical removal of the implants was performed without additional complication. On removal, bilateral iris atrophy was evident with non-reacting pupils and permanent mydriasis. Optical coherence tomography angiography showed a reduction in iris vasculature density that is more pronounced in the area of the iris atrophic defects. This case suggests that cosmetic iris implants may compress iris vasculature, resulting in decreased iris perfusion resulting in atrophic mydriasis and iris defects. This is a potential novel mechanism for complications in eyes with cosmetic iris implants.


Asunto(s)
Presión Intraocular , Enfermedades del Iris/complicaciones , Iris/cirugía , Midriasis/diagnóstico , Prótesis e Implantes/efectos adversos , Acetaminofén/uso terapéutico , Acetazolamida/uso terapéutico , Administración Intravenosa , Adulto , Analgésicos no Narcóticos/uso terapéutico , Inhibidores de Anhidrasa Carbónica/uso terapéutico , Humanos , Latanoprost/uso terapéutico , Masculino , Soluciones Oftálmicas/uso terapéutico , Tomografía de Coherencia Óptica
18.
Acta Cir Bras ; 36(2): e360202, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33624719

RESUMEN

PURPOSE: The biomechanical properties of the polyurethanes implant material derived from castor oil plant (Ricinus communis) were evaluated in a noncritical bone defect model in rat tibia. METHODS: After three weeks of the implant application, the tibias were tested by means of the biomechanical three-point flexion test and resistance, rigidity, energy at maximum load and maximum energy were evaluated. Nonparametric statistical analysis was performed. RESULTS: It was found that the group that received the implant behaved the same as the intact control group and also showed a significant increase in maximum load compared to the spontaneous repair group. CONCLUSIONS: Our results indicate that the tibias with the implant material in a noncritical bone defect recover normal biomechanical parameters in less time than spontaneously.


Asunto(s)
Prótesis e Implantes , Ricinus , Animales , Poliuretanos , Ratas , Tibia/cirugía
20.
Artículo en Inglés | MEDLINE | ID: mdl-33572988

RESUMEN

Background: Implant dentistry has evolved over time, resulting in better treatment outcomes for both patients and clinicians. The aim of this trial was to test whether the immediate loading of implants with a platform-switching design influences the marginal bone level, compared to four-week loading, after one year of follow-up. Moreover, a comparison of clinical data regarding implant survival, implant stability, and patient-reported outcome measures (PROMs) was conducted. Methods: Klockner® VEGA® implants with a ContacTi® surface were placed in partially edentulous patients in the posterior areas. Group A received an immediately loaded prosthesis (one week) and Group B received an early-loaded prosthesis (four weeks). All abutments were placed at the time of surgery. Radiographic and clinical data were recorded. Results: Twenty-one patients were treated (35 implants). No implants were lost during the study. The final marginal bone level did not show differences between groups. The bone loss at 12 months at the implant level was 0.00 mm for both groups (median). The final implant quotient stability (ISQ) values did not differ between groups (median 73 and 70.25), nor did the other clinical parameters or PROMs. Conclusions: The results suggest that neither of the loading protocols with the implants used influenced the marginal bone level-not the osseointegration rate, clinical conditions, or PROMs.


Asunto(s)
Pérdida de Hueso Alveolar , Pérdida de Hueso Alveolar/diagnóstico por imagen , Fracaso de la Restauración Dental , Dentadura Parcial Fija , Estudios de Seguimiento , Humanos , Oseointegración , Prótesis e Implantes , Resultado del Tratamiento
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