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1.
J. oral res. (Impresa) ; 11(4): 1-13, jul. 21, 2022. ilus, tab
Article in English | LILACS | ID: biblio-1427085

ABSTRACT

Objetive: To compare the stresses and deformations generated on the surrounding bone of the zygomatic implants when using an intra sinusal and extra-maxillary approach, through the finite element method. Material and Methods: Computer aided designs (CADs) were constructed using SolidWorks Software of a skull with bone resorption to be rehabilitated through a fixed hybrid prosthesis using two zygomatic and two conventional straight implants. For the boundary conditions (load conditions), symmetry in the sagittal plane was assumed and that all the materials were isotropic, homogeneous and linearly elastic. Two zygomatic implantation techniques were simulated: intra sinusal (Is) and extra maxillary (Em). Vertical and lateral loads of 150 N and 50 N were applied to the finite element models to obtain Von Mises equivalent stress and strain (displacement). Results: The average measurement of the Von Mises stress (MPa) recorded were as follows: Approach of the implant body (Is: 0.24- Em: 0.28,) effort of implant body with vertical load: Is: 0.69 - Em: 0.96; effort of peri-implant surface under horizontal load: Is: 2.11 - Em: 0.94. Average displacement under vertical load of peri-implant surface Is: 0.35 - Em: 0.40, and of implant body Is: 1.34 - Em: 2.04. Average total deformation in approach Is: 2.23 mm - Em: 0.80mm, and average total deformation in the implant body under horizontal load was Is: 0.14 - Em: 0.21. Conclusion: The results of this study indicate that despite the differences that occurred in both stress and strain (displacement) between the intra-sinus and extra-maxillary approaches, the static strength of the bone, which is approximately 150 MPa in tension and 250 MPa in compression was not exceeded. Considering the limitations of finite element analysis, there seems to be no biomechanical reason to choose one approach over the other.


Objetivo: Comparar por el método de elementos finitos los esfuerzos y deformaciones generados sobre el hueso circundante de implantes cigomáticos tratados con un abordaje intra sinusal y extra maxilar. Material y Métodos: Se construyeron los diseños asistidos por computadora (CAD) utilizando el Software SolidWorks de un cráneo con una reabsorción ósea para ser rehabilitado, a través de una prótesis híbrida fija, mediante dos implantes cigomáticos y dos rectos convencionales. Para las condiciones de frontera (condiciones de carga) se asumió simetría en el plano sagital y que todos los materiales eran isotrópicos, homogéneos y linealmente elásticos. Se simularon dos técnicas de implantación cigomática: una intra sinusal (Is) y otra extra maxilar (Em). Se aplicaron cargas verticales y laterales de 150 N y 50 N a los modelos de elementos finitos para obtener el esfuerzo equivalente de Von mises y la deformación (desplazamiento). Resultados: La medición promedio del esfuerzo de Von Mises (MPa) registró: abordaje del cuerpo de implante (Is: 0.24-Em: 0.28) esfuerzo del cuerpo de implante con carga vertical: (Is:0.69 ­ Em: 0.96); esfuerzo de la superficie peri implantar ante carga horizontal (lateral):( Is:2.11 ­ Em:0.94). Desplazamiento promedio ante carga vertical de la superficie peri implantar (Is:0.35 ­ Em:0.40) y del cuerpo del implante (Is:1.34 ­ Em:2.04). Deformación total promedio en mm en abordaje (Is: 2.23 ­ Em:0.80) y deformación total promedio en el cuerpo del implante ante carga horizontal (Is:0.14 ­ Em:0.21). Conclusión: Los resultados de este estudio indican que a pesar de las diferencias que se presentaron tanto en el esfuerzo como en la deformación (desplazamiento) entre los abordajes intra sinusal y extra maxilar, la resistencia estática del hueso, que es de aproximadamente 150 MPa en tensión y 250 MPa en compresión no se superó. Considerando las limitaciones de los AEF, parece no haber razones biomecánicas para elegir uno u otro enfoque.


Subject(s)
Humans , Dental Implants , Finite Element Analysis , Maxillary Sinus/physiology , Zygoma/surgery , Jaw, Edentulous, Partially/rehabilitation , Weight-Bearing , Computer-Aided Design
2.
Actual. osteol ; 15(3): 225-236, Sept-Dic. 2019. ilus
Article in English | LILACS | ID: biblio-1116171

ABSTRACT

Bone grafting is important to preserve the alveolar bone ridge height and volume for dental implant placement. Even though implant-supported overdentures present highly successful outcomes, it seems that a great number of edentulous individuals have not pursued implant-based rehabilitation. The cost of the treatment is one of the reasons of discrepancy between highly successful therapy and its acceptance. Therefore, the development of biomaterials for bone grafting with comparable characteristics and biological effects than those renowned internationally, is necessary. In addition, domestic manufacture would reduce the high costs in public health arising from the application of these biomaterials in the dental feld. The purpose of this clinical case report is to provide preliminary clinical evidence of the efficacy of a new bovine bone graft in the bone healing process when used for sinus floor elevation. (AU)


El uso de injertos óseos es importante para preservar la altura y el volumen de la cresta alveolar para la colocación de implantes dentales. Si bien las sobredentaduras implanto-soportadas presentan resultados altamente exitosos, la mayoría de las personas desdentadas no han sido rehabilitadas mediante implantes dentales. Uno de los principales motivos por los cuales los pacientes no aceptan este tipo de tratamiento, altamente exitoso, es el elevado costo del mismo. Por ello, es necesario el desarrollo de biomateriales de injerto óseo con características y efectos biológicos comparables a los reconocidos internacionalmente. Asimismo, la fabricación nacional reduciría los altos costos en Salud Pública derivados de la aplicación de estos biomateriales en el campo dental. El objetivo de esta comunicación es presentar un caso clínico a fin de proporcionar evidencia preliminar acerca de la eficacia de un nuevo injerto de hueso bovino en el proceso de cicatrización ósea en el levantamiento del piso del seno maxilar. (AU)


Subject(s)
Humans , Animals , Female , Middle Aged , Cattle , Rats , Bone Transplantation/methods , Jaw, Edentulous, Partially/rehabilitation , Sinus Floor Augmentation/methods , Osteogenesis , Argentina , Biocompatible Materials , Cattle/physiology , Carticaine/administration & dosage , Chlorhexidine/administration & dosage , Naproxen/administration & dosage , Public Health/economics , Osseointegration , Dentures , Bone Transplantation/trends , Jaw, Edentulous, Partially/pathology , Jaw, Edentulous, Partially/therapy , Durapatite/therapeutic use , Amoxicillin-Potassium Clavulanate Combination/administration & dosage , Dental Implantation, Endosseous/methods , Sinus Floor Augmentation/trends , Allografts/immunology , Allografts/transplantation
3.
J. oral res. (Impresa) ; 8(3): 236-243, jul. 31, 2019. graf, tab
Article in English | LILACS | ID: biblio-1145341

ABSTRACT

Introduction: Edentulism is an irreversible chronic condition that seriously affects the stomatognathic system. Consequently, determining its prevalence may contribute to prioritize preventive and rehabilitative oral health interventions. Objective: To determine the prevalence of partial edentulism according to the Kennedy and Applegate classification in patients attending the Dental Clinic at Universidad San Martín de Porres - Lambayeque Campus, Peru, in the years 2016 and 2017. Materials and methods: A descriptive, retrospective and cross-sectional study was designed. The study comprised 321 clinical records that previously underwent a quality control stage, which included a calibration process (k=0.86). The criteria and rules proposed by Kennedy and Applegate were applied to estimate the prevalence of edentulism in each jaw according to sex; tables of frequency distribution containing percentage results were used. Results: The highest prevalence of partial edentulism in the upper jaw corresponded to Class III (42.4%), followed by Class I (34.6%), and Class II (16.5%). In the lower jaw, the most prevalent were Class I (42.4%), Class III (36.4%), and Class II (15.6%). According to sex, Class III and Class I were the most prevalent in both females and males. Conclusion: Class III and I were the most prevalent in the upper jaw in both females and males; while in the lower jaw, Classes I and III were the most prevalent for both sexes.


El edentulismo se presenta como una alteración irreversible y crónica, que genera consecuencias en el sistema estomatognático, por lo cual es necesario conocer su prevalencia para priorizar intervenciones de salud bucal preventivas y de rehabilitación. Objetivo: Determinar la prevalencia de edentulismo parcial según la clasificación de Kennedy y Applegate en pacientes atendidos en la Clínica Odontológica de la Universidad San Martín de Porres - Filial Lambayeque, en los años 2016 y 2017. Material y Método: Se diseñó un estudio descriptivo, retrospectivo y transversal, con 321 historias clínicas que pasaron previamente por un control de calidad que incluyó un proceso de calibración (k=0.86). Para estimar la prevalencia de edentulismo en cada maxilar y de acuerdo al género, fueron aplicados los criterios y reglas de kennedy y Applegate, utilizando tablas de distribución de frecuencias con resultados porcentuales. Resultados: La mayor prevalencia de edentulismo parcial para maxilar superior corresponde a la Clase III con 42,4%, siguiendo en orden descendente la Clase I con 34.6% y la Clase II con 16.5%. En el maxilar inferior, la más prevalente fue la Clase I con 42,4%, continuando la Clase III con 36.4% y la Clase II con 15.6%. De acuerdo a género, resultaron más prevalentes la Clase III y la Clase I tanto para mujeres como para hombres. Conclusiones: Las clases III y I fueron las más prevalentes en el maxilar superior, tanto para género masculino como femenino; mientras que en el maxilar inferior, fueron las clases I y III las más prevalentes también para ambos géneros.


Subject(s)
Humans , Male , Female , Jaw, Edentulous, Partially/prevention & control , Jaw, Edentulous, Partially/rehabilitation , Peru/epidemiology , Oral Health , Epidemiology, Descriptive , Prevalence , Jaw, Edentulous/prevention & control , Jaw, Edentulous/rehabilitation
4.
Dental press j. orthod. (Impr.) ; 23(1): 87-96, Jan.-Feb. 2018. tab, graf
Article in English | LILACS | ID: biblio-891124

ABSTRACT

ABSTRACT Introduction: Treatment of maxillofacial injuries is complex and requires the establishment of a comprehensive and accurate diagnosis and correct treatment planning. Objective: The objective of this case report was to describe the re-treatment of a 27-year-old woman who was involved in a severe car accident that resulted in the loss of five anterior teeth and alveolar bone, and whose previous orthodontic and surgical treatments had been unsuccessful. Case report: In this case, the space for the missing mandibular molar was reopened to allow for rehabilitation. The positions of the mandibular incisors were improved. The right mandibular canine was moved to the mesial, allowing for correction of the Class II canine relationship on that side, and implants were placed to replace the maxillary anterior teeth. Conclusion: Anterior aesthetic and functional rehabilitation using a multidisciplinary approach was essential to improve the patient's facial aesthetics, to obtain great improvement in function and to achieve occlusal stability after 2 years of follow-up.


RESUMO Introdução: o tratamento de danos bucomaxilofaciais é complexo e requer diagnóstico abrangente e preciso, além de um correto plano de tratamento. Objetivo: o objetivo deste relato de caso foi descrever o retratamento de uma paciente do sexo feminino, 27 anos de idade, envolvida em acidente automobilístico grave, que resultou na perda de cinco dentes, além de perda óssea alveolar na região anterior. Relato de caso: a paciente apresentava histórico de insucesso de tratamento ortodôntico e cirúrgico. No caso apresentado, o espaço referente aos molares inferiores ausentes foi reaberto, para possibilitar a reabilitação. Houve melhora no posicionamento dos incisivos inferiores. O canino inferior direito foi deslocado para mesial, possibilitando a correção da relação de Classe II intercaninos do mesmo lado. Implantes foram inseridos a fim de substituir os dentes superiores da região anterior. Conclusão: a reabilitação estética e funcional da região anterior, realizada por meio de uma abordagem multidisciplinar, foi fundamental para valorizar a estética facial da paciente, melhorar a função e promover estabilidade oclusal após dois anos de acompanhamento.


Subject(s)
Humans , Female , Adult , Alveolar Bone Loss/rehabilitation , Jaw, Edentulous, Partially/rehabilitation , Dental Prosthesis, Implant-Supported , Alveolar Bone Loss/etiology , Bone Transplantation , Tooth Injuries/rehabilitation , Dental Implantation, Endosseous/methods , Maxilla , Maxillofacial Injuries/complications , Maxillofacial Injuries/rehabilitation
5.
Rev. Asoc. Odontol. Argent ; 105(3): 88-101, sept. 2017. ilus, tab, graf
Article in Spanish | LILACS | ID: biblio-973103

ABSTRACT

Objetivo: Analizar la distribución de tensiones que provoca una fuerza axial en el modelo tridimensional, con elmétodo de elementos finitos, en la prótesis parcial fija implantosoportada con voladizo distal (PPFIVD) sobre implantes dentales cortos en el sector posterior del maxilar parcialmente desdentado. Materiales y métodos: Se crearon modelos geométricos del maxilar. Se diseñaron dos grupos y cuatro subgrupos. En zona premolar, se ubicaron implantes cortos StandardPlus SLA® (Straumann) de diferentes longitudes. Grupo A: PPFIVD con dos implantes, GA1 de 8 mm y GA2 de 4 mm. Grupo B: PPFIVD con un implante, GB1 de 8 mm y GB2 de 4 mm. Se aplicó una fuerza axial de 100 N a 30°.Resultados: La distribución de las tensiones en los implantes fue menor en GA1 que en GA2, y en GB1 que enGB2. A nivel óseo, la distribución de las tensiones fue mayor en GA1 que en GA2, y en GB2 que en GB1. Se observaron microdeformaciones óseas periimplante y, posteriormente, desplazamiento del conjunto prótesis/implante. Conclusiones: La PPFIVD sobre dos implantes de 8 y4 mm ferulizados podría ser una alternativa viable al levantamiento del piso de seno maxilar. La PPFIVD sobre un implante de 4 mm no sería recomendable. Las tensiones elevadas provocaron menor rendimiento en geometría oseoimplantaria, evidenciando microdeformaciones en el tejido óseo tridimensional y desplazamientos de la PPFIVD.


Subject(s)
Humans , Dental Prosthesis, Implant-Supported/methods , Finite Element Analysis , Denture, Partial, Fixed , Denture, Partial, Removable/trends , Jaw, Edentulous, Partially/rehabilitation , Data Interpretation, Statistical , Tensile Strength , Ferula , Maxilla , Dental Implants, Single-Tooth
6.
Article in Spanish | LILACS | ID: biblio-900286

ABSTRACT

RESUMEN: La irrupción de los implantes óseo integrados y su posterior validación, a comienzos de los años '80, aportó sin duda un utilísimo recurso en la rehabilitación oral. Lamentablemente, en gran medida debido a los costes económicos involucrados, a pesar de alentadores augurios, no han devenido en una alternativa terapéutica concreta para la gran mayoría de los pacientes desdentados. El edentulismo parcial de maxilas, clases Kennedy I y II, con remanencia de todos o parte de los dientes del sextante 2, en su mayoría casos de sustancial complejidad, léase clases III del Índice Diagnóstico Prostodóntico, genera un desafío protésico a solventar en relación a la retención y satisfacción estética de los pacientes. Presentamos en este reporte dos de estos casos, rehabilitados mediante prótesis metálicas "convencionales", en los cuales creemos logramos conjugar acertadamente ambas variables, combinando complejos retentivos RMC y facetas retentivas friccionales.


ABSTRACT The emergence of osseointegrated implants and their further validation, at the beginning of the 80's, contributed undoubtedly to oral rehabilitation as a very useful resource. Unfortunately, mainly because of the economic costs involved and despite an encouraging initial augury, they have not become in a specific therapeutic alternative for the vast majority of edentulous patients. Partial edentulism of maxillae, Kennedy's class I, & II, with all or a few teeth remaining at the sextant 2, mostly class III PDI, substantially compromised denture-supporting anatomy, generate a prosthetic challenge to overcome regarding retention and aesthetic satisfaction of these patients. In this report, we display two of them, which we believe have been successfully managed in order to fulfill both variables, by means of "conventional" removable metallic prostheses combining MGR's clasps and frictional retentive facets.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Jaw, Edentulous, Partially/rehabilitation , Denture, Partial, Removable , Jaw, Edentulous, Partially/diagnosis
7.
Int. j. odontostomatol. (Print) ; 10(3): 443-448, dic. 2016. ilus
Article in English | LILACS | ID: biblio-840993

ABSTRACT

This study assessed the perception of caregivers on oral health of institutionalized impaired elderly, and the care provided for them in oral hygiene and prosthetic rehabilitation. A descriptive observational study was developed with caregivers of 32 institutionalized impaired elderly, in the state of Sergipe, Brazil. Data collection was performed by interviewing the caregivers, researching records of the Institution, and by clinical examination of the oral cavity of the elderly during a period between the months of March and May, 2013. Data were analyzed by descriptive statistics of absolute frequency (n) and relative frequency (%). All of the elderly presented partial (50 %) or total (50 %) tooth losses, and only 28.1 % wore removable denture. The prosthetic devices and remaining teeth of the elderly were cleaned with only toothbrush and toothpaste (100 %), with different daily frequencies among caregivers and no dentist instruction. The majority of caregivers was satisfied with the oral hygiene of the elderly (75 %) and the oral hygiene method (96.9 %) used, and showed no interest in learning new methods (81.3 %). The caregivers have an inadequate perception on oral health of the elderly population investigated, and oral hygiene care provided to the elderly is precarious.


Este estudio analizó la percepción de cuidadores sobre la salud oral de ancianos discapacitados asilados y los cuidados entregados en la higienización oral y frente a la rehabilitación protética. Se realizó un estudio observacional descriptivo, por medio de entrevistas con los respectivos cuidadores de los 32 ancianos seleccionados, institucionalizados en el Estado de Sergipe, Brasil. Todos los ancianos presentaban pérdidas dentales parciales (un 50 %) o totales (un 50 %) y solo el 28,1 % hacía uso de prótesis dentaria removible. Los aparatos protéticos y dientes remanecientes de los ancianos se higienizaban solo con cepillo y crema dental (un 100 %), con frecuencias diarias divergentes entre los cuidadores, sin la orientación de un dentista. La mayoría de los cuidadores se mostró satisfechos con la salud oral del anciano (un 75 %) y (un 96,9 %) con el método de higiene oral que utilizaban, y no expresaron interés en conocer nuevos métodos (un 81,3 %). Se concluyó que los cuidadores tienen una percepción inadecuada sobre la salud oral de la población de ancianos investigada y que los cuidados de higiene oral entregados a los ancianos son precarios.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Aged, 80 and over , Caregivers/psychology , Disabled Persons , Health of Institutionalized Elderly , Oral Hygiene , Denture, Complete , Denture, Partial, Removable , Homes for the Aged , Jaw, Edentulous, Partially/rehabilitation , Mouth, Edentulous/rehabilitation , Observational Study , Oral Health , Perception , Surveys and Questionnaires
8.
Rev. Círc. Argent. Odontol ; 73(222): 12-14, jun. 2016. ilus
Article in Spanish | LILACS | ID: lil-794299

ABSTRACT

Las técnicas de implantología actuales no sólo deben evaluar la correcta instalación de implantes y la rehabilitación protésica, sino que también deben abocarse a resolver los problemas más integrales de nuestros pacientes. De esta forma, devolver la armonía facial perdida debe ser un criterio trascendente en la elección del tratamento...


Subject(s)
Humans , Male , Middle Aged , Osteotomy, Le Fort/methods , Alveolar Bone Loss/surgery , Oral Surgical Procedures, Preprosthetic/methods , Bone Transplantation/methods , Jaw, Edentulous, Partially , Jaw, Edentulous, Partially/rehabilitation , Dental Service, Hospital , Jaw Fixation Techniques , Radiography, Panoramic , Transplantation, Autologous/methods
9.
Braz. oral res. (Online) ; 30(1): e102, 2016. tab, graf
Article in English | LILACS | ID: biblio-952038

ABSTRACT

Abstract The aim of this non-randomized controlled clinical trial was to evaluate the oral health-related quality of life and masticatory efficiency of patients rehabilitated with mandibular two-implant overdentures with immediate loading or conventional dentures. Fifty completely edentulous patients wearing bimaxillary conventional dentures, for at least one year, were recruited. The patients were then assigned to either two treatment groups: mandibular overdentures supported by two implants with bar-clip system and a maxillary conventional denture (n = 25), and new maxillary and mandibular conventional complete dentures (n = 25). Masticatory efficiency and oral health-related quality of life were assessed before and 3 months after denture insertion. The Brazilian version of OHIP-Edent questionnaire was used to assess the oral health-related quality of life. Masticatory efficiency was evaluated with chewing capsules through a colorimetric method. The results revealed fewer oral health-related quality of life problems in patients wearing mandibular two-implant overdentures compared to the conventional dentures group. In addition, the implant overdenture group presented statistically significant improvement in masticatory efficiency (p = 0.001). There was no correlation between masticatory efficiency and OHIP in the implant group (p > 0.05), however a correlation was found in the conventional denture group (p < 0.05). Therefore, these short-term results suggest that mandibular overdenture retained by 2 implants with immediate loading combined with maxillary conventional dentures provide better masticatory efficiency and oral health-related quality of life than mandibular conventional dentures.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Quality of Life , Oral Health , Dentures/psychology , Immediate Dental Implant Loading/psychology , Mastication/physiology , Mouth Rehabilitation/methods , Time Factors , Dental Implants/psychology , Surveys and Questionnaires , Jaw, Edentulous, Partially/rehabilitation , Treatment Outcome , Patient Satisfaction , Statistics, Nonparametric , Mandible , Middle Aged , Mouth Rehabilitation/psychology
10.
Article in Spanish | LILACS | ID: lil-771684

ABSTRACT

La epidermolisis bullosa es una enfermedad de origen genético caracterizada por una marcada fragilidad de la piel y las mucosas, resultando en la aparición de lesiones vesiculobullosas y/o desprendimientos tisulares de aparición espontánea o, más comúnmente, como consecuencia de roce mecánico. La formación de cicatrices con retracción tisular genera a nivel oral obliteración vestibular, anquiloglosia y microstomía, complicándose la rehabilitación odontológica y, en particular, la protésica. El presente artículo describe una alternativa protésica, simple y económica, para una paciente desdentada parcial con epidermolisis bullosa distrófica recesiva.


Epidermolysis bullosa is a rare genetic disease that is characterised by the formation of blisters and erosions on the skin and mucous membranes following minor traction or trauma. Oral manifestations of the disease include obliteration of the vestibule, ankyloglossia, and microstomia. Oral rehabilitation, and prosthetic rehabilitation, in particular, is a challenge. This article describes a simple, inexpensive prosthetic alternative for a partially edentulous patient with recessive dystrophic epidermolysis bullosa.


Subject(s)
Humans , Adolescent , Female , Jaw, Edentulous, Partially/rehabilitation , Denture, Partial, Removable , Epidermolysis Bullosa Dystrophica/complications , Tooth Diseases/rehabilitation , Jaw, Edentulous, Partially/etiology , Mouth Rehabilitation , Tooth Diseases/etiology
11.
Dent. press implantol ; 9(2): 13-38, Apr.-Jun.2015.
Article in Portuguese | LILACS | ID: lil-790542

ABSTRACT

Diversos fatores determinam o sucesso na obtenção dos objetivos funcionais e estéticos com restaurações implantossuportadas. O trabalho em equipe é essencial desde o momento do diagnóstico, bem como o compromisso de todos os membros envolvidos com a resolução das diversas situações que surgem diariamente na prática odontológica. Um planejamento abrangente mostra-se a chave para alcançar os resultados propostos, respeitando uma prática interdisciplinar e utilizando protocolos aceitos clinicamente e cientificamente, baseados em evidências científicas. Assim, o presente artigo apresentará a integração paciente-dentista-TPD, na busca por resultados sustentáveis em longo prazo...


Several factors determine the success of functional and esthetic outcomes with implant-supported prosthetic replacement. Team work is essential as from the time of diagnosis, along with commitment of all members involved in solving different situations daily arising in dental practice. Meticulous planning is the key to achieve the desired result, respecting an interdisciplinary practice and using clinically scientifically acceptable evidence-based protocols. Thus, this article presents a case of patient-dentist-dental hygiene technician integration in the quest for sustainable results in the long run...


Subject(s)
Humans , Male , Young Adult , Jaw, Edentulous, Partially/rehabilitation , Dental Implants , Incisor/injuries , Dental Prosthesis, Implant-Supported/methods , Clinical Protocols , Dentist-Patient Relations , Esthetics, Dental , Treatment Outcome
12.
Dent. press implantol ; 9(2): 89-99, Apr.-Jun.2015. graf
Article in Portuguese | LILACS | ID: lil-790544

ABSTRACT

A instalação de implantes tem se tornado o tratamento recomendado para a reposição em edêntulos. Pesquisas na área da Implantodontia têm objetivado desenvolver procedimentos rápidos, controlados e que resultem em maior conforto e previsibilidade ao paciente e ao profissional. Nessas circunstâncias, surgiu o desenvolvimento de implantes curtos, substituindo os implantes convencionais quando há uma limitação para a implantação desse, representando uma alternativa viável, simples e previsível. Para se verificar a prevalência de utilização dos implantes curtos, sobre uma quantidade preestabelecida de prontuários, foram utilizados prontuários de diferentes clínicas e cursos de especialização, entre 2005 e 2012. Verificou-se quantos desses eram curtos (ou seja, com tamanho de 8,5mm ou 10mm), o tamanho dos implantes, a região em que foram implantados, o sexo e a idade dos pacientes. Dos 82 prontuários analisados, foram obtidos 459 implantes; desses, a maioria (79%) foi instalada em pacientes do sexo feminino. Desses implantes, 48,6% eram de 10mm e 14,8% eram de 8,5mm. Para ambos os tamanhos, a idade de maior prevalência foi entre 50 e 59 anos. A proporção de utilização de implantes curtos, comparados aos longos convencionais, aumentou nos últimos anos, em decorrência das novas pesquisas, e vêm sendo indicados em diversas circunstâncias, mostrando ser uma técnica segura, previsível, com menor custo, sem necessidade de múltiplos procedimentos cirúrgicos, além de preservar as estruturas anatômicas preexistentes e ter boa aceitação pelos implantodontistas e pacientes...


Implant placement has become the recommended treatment for rehabilitation of edentulouspatients. Research in Implantology aims to develop rapid controlled procedures that provide patients and clinicians with greater comfort and predictability. In these circumstances, short implants were developed to replace conventional implant limited placement, thereby representing a feasible, simple and predictable alternative. To determine the prevalence of short implants use on a previously established sample of dental records, the latter were obtained from different dental offices and specialization courses between 2005 and 2012. The following was assessed: number of short implants (8.5-mm or 10-mm long), size of implants, the region where they were placed, as well as patients’ sex and age. Of the 82 dental records analyzed, 459 implants were obtained; the majority (79%) of them was placed in female patients, 48.6% were 10-mm long and 14.8% were 8.5-mm long. For both implant sizes, the most prevalent age group was between 50 and 59 years old. The use of short implants, when compared to the use of conventional long ones, increased in recent years due to new research. They are recommended in different circumstances and have proved to be a safe, predictable, less expensive technique without the need for multiple surgery, in addition to preserving patient’s preexisting anatomic structures and being well received by patients and implant dentists...


Subject(s)
Humans , Male , Female , Middle Aged , Dental Implants/trends , Osseointegration , Jaw, Edentulous/rehabilitation , Jaw, Edentulous, Partially/rehabilitation , Brazil , Cross-Sectional Studies
13.
Dental press j. orthod. (Impr.) ; 20(3): 69-79, May-Jun/2015. tab, graf
Article in English | LILACS | ID: lil-751408

ABSTRACT

INTRODUCTION: Combined treatment offers advantages for partially edentulous patients. Conventional implants, used as orthodontic anchorage, enable previous orthodontic movement, which provides appropriate space gain for crown insertion. OBJECTIVE: This case report describes the treatment of a 61-year and 10-month-old patient with negative overjet which made ideal prosthetic rehabilitation impossible, thereby hindering dental and facial esthetics. CASE REPORT: After a diagnostic setup, conventional implants were placed in the upper arch to anchor intrusion and retract anterior teeth. Space gain for lateral incisors was achieved in the lower arch by means of an orthodontic appliance. CONCLUSIONS: Integrated planning combining Orthodontics and Implantology provided successful treatment by means of conventional implant-supported anchorage. The resulting occlusal relationship proved stable after 10 years. .


INTRODUÇÃO: tratamentos combinados podem oferecer vantagens em casos de edentulismo parcial. O uso de implantes convencionais como ancoragem ortodôntica permite a movimentação ortodôntica prévia, fornecendo os espaços apropriados para inserção das coroas. OBJETIVO: este relato de caso descreve o tratamento de uma paciente, com 61 anos e 10 meses de idade, que possuía um overjet negativo que tornava impossível uma reabilitação protética ideal, comprometendo a estética dentária e facial. RELATO DO CASO: após um setup diagnóstico, os implantes convencionais foram colocados na mandíbula para ancorar a intrusão e retração dos dentes anteriores. Espaços para os incisivos laterais foram abertos na maxila, usando-se aparelho ortodôntico. CONCLUSÕES: o planejamento integrado entre Ortodontia e Implantodontia propiciou um tratamento bem-sucedido, usando implantes convencionais como ancoragem. A relação oclusal obtida apresenta estabilidade 10 anos pós-tratamento. .


Subject(s)
Humans , Female , Middle Aged , Patient Care Team , Dental Implants , Orthodontic Anchorage Procedures/instrumentation , Malocclusion, Angle Class III/therapy , Patient Care Planning , Tooth Movement Techniques/instrumentation , Cephalometry/methods , Follow-Up Studies , Jaw, Edentulous, Partially/rehabilitation , Dental Prosthesis, Implant-Supported , Crowns , Dental Veneers , Diastema/therapy , Overbite/therapy
14.
Rev. Fundac. Juan Jose Carraro ; 20(40): 16-19, 2015. ilus
Article in Spanish | LILACS | ID: lil-764267

ABSTRACT

El edentulismo en el sector posterior maxilar es una de las condiciones más comunes que se presenta en la consulta odontológica9, 10, 12. La prevalencia del edentulismo difiere sustancialmente en la mayoría de los países del mundo (4). Algunos de los índices más altos son encontrados en el Reino Unido y Nueva Zelandia, y los más bajos en Estados Unidos.


Subject(s)
Humans , Male , Female , Periodontal Diseases/classification , Dental Implantation, Endosseous/methods , Alveolar Bone Loss/classification , Jaw, Edentulous, Partially/rehabilitation , Dental Prosthesis, Implant-Supported , Denture, Partial, Fixed , Sinus Floor Augmentation/methods , Mouth Rehabilitation , Bone Resorption/classification
15.
Rev. Fac. Odontol. (B.Aires) ; 29(67): 28-33, jul.-dic. 2014. tab, ilus
Article in Spanish | LILACS | ID: lil-767392

ABSTRACT

Evaluar el rendimiento clínico de 100 implantes SEVEN MIS en protocolos de carga inmediata en pacientes parcialmente desdentados, analizando los criterios de éxito a lo largo de 12 meses. Materiales y métodos: En todos los casos se llevó a cabo el mismo protocolo clínico (quirúrgico y protético) de carga oclusal inmediata. Se utilizaron 100 implantes SEVEN MIS cuya longitud y diámetro se determinó en cada caso según la calidad y cantidad ósea en el sitio quirúrgico.Resultados: Ninguno de los pacientes abandonó el estudio. Todos los implantes fueron clínicamente estables y se correspondieron con los criterios de éxito. Conclusión: Los 100 implantes tuvieron una tasa de éxito de 100 por ciento...


Subject(s)
Humans , Male , Female , Jaw, Edentulous, Partially/rehabilitation , Immediate Dental Implant Loading/statistics & numerical data , Dental Prosthesis, Implant-Supported/statistics & numerical data , Treatment Outcome , Argentina , Clinical Protocols , Schools, Dental , Follow-Up Studies , Dental Restoration Failure/statistics & numerical data , Data Interpretation, Statistical
16.
Dent. press implantol ; 8(4): 50-59, Oct.-Dec. 2014. ilus
Article in Portuguese | LILACS, BBO | ID: lil-762300

ABSTRACT

Introdução: ainda nos dias atuais, a reabilitação de regiões que apresentam tecido ósseo insuficiente para instalação de implantes dentários permanece um grande desafio ao cirurgião. Nesse sentido, a associação de enxerto autógeno e material heterógeno é reportada na literatura como uma opção viável e previsível, com a capacidade de readequar esses rebordos, tornando-os aptos a receber implantes. Objetivo: o objetivo do presente trabalho é relatar o caso clínico de um paciente que procurou reabilitação com implantes dentários para a região anteros superior, mas cujas avaliações clínica e radiográfica evidenciaram atrofia do rebordo alveolar. Métodos: diante disso, o paciente foi orientado e submetido à reconstrução óssea da região, por meio da remoção de enxerto do mento. Após a remoção do enxerto, esse foi adaptado e fixado à região receptora em associação com material heterógeno e membrana de colágeno reabsorvível. Decorrido cinco meses da cirurgia de enxerto, foi realizada a instalação dos implantes dentários na região, sendo possível observar a excelente incorporação do enxerto e praticamente a ausência de reabsorção do osso autógeno. Conclusão: podemos afirmar que a associação entre osso autógeno e heterógeno mostrou-se uma opção previsível, com pouca ou nenhuma reabsorção, possibilitando a instalação de implantes em posições e proporções adequadas.


Introduction: Even today, rehabilitation of regions with insufficient bone for implant placement remains a major challenge to the surgeon. The combination of autograft and heterogenmaterial is reported in the literature as a viable and predictable option to readjust the edges, rendering them favorable for implant placement. Objective: To report the case of a patient seeking rehabilitation with dental implants for the anterior maxilla, but whose clinical and radiographic examination showed atrophy of the alveolar ridge. Methods: The patient was instructed and subjectedto bone reconstruction with chin graft. After graft harvesting, it was adjusted and set to the receiving region in association with heterogen material and resorbable collagen membrane. Fivemonths after graft surgery, dental implants were installed in the region where excellent graft incorporationand virtually no resorption of autogenous bone were observed. Conclusion: The combination of autogenous bone and heterogen proved to be a predictable option with little or no resorption, allowing implant placement in proper position and proportions.


Subject(s)
Humans , Male , Middle Aged , Jaw, Edentulous, Partially/rehabilitation , Biocompatible Materials , Bone Transplantation , Dental Implantation , Bone Resorption/rehabilitation , Brazil , Transplantation, Autologous
17.
Rev. Fac. Odontol. (B.Aires) ; 28(65): 22-31, jul.-dic. 2013. ilus
Article in Spanish | LILACS | ID: lil-762478

ABSTRACT

La Prótesis Parcial Removible representa un recurso ampliamente utilizado en la rehabilitación Odontológica. En este trabajo, serevisarán los conceptos vigentes sobre soporte, retención, estabilidad, la retención directa y la retención indirecta que rigen desde hace mucho tiempo cuando se hace referencia a este tipo de prótesis. Revisaremos también lo que sobre estos temas, nos dice la literatura y pondremos a discusión además, conceptos de biomecánica vinculados a la P.P.R que nos parecen superadores desde el aspecto de la física y dela clínica


The Removable Partial Denture is a resource widely used in Dental rehabilitation. In this paper we review the existing concepts of support, retention, stability, direct and indirect retention, governing longtime when referring to this type of prosthesis. Also we review these issues by comparing to literature reports and discuss biomechanicals concepts related to de P.P.R. that seem superseders from aspect of physical and clinical.


Subject(s)
Humans , Biomechanical Phenomena , Dental Prosthesis Design , Dental Prosthesis Retention , Denture, Partial, Removable , Jaw, Edentulous, Partially/rehabilitation , Bite Force , Dental Occlusion , Stress, Mechanical
18.
J. appl. oral sci ; 21(5): 392-396, Sep-Oct/2013. tab, graf
Article in English | LILACS, BBO | ID: lil-690084

ABSTRACT

Removable partial denture prostheses are still being used for anatomic, medical and economic reasons. However, the impact on chewing parameters is poorly described. OBJECTIVES: The objective of this study was to estimate the impact of removable partial denture prosthesis on masticatory parameters. MATERIAL AND METHODS: Nineteen removable partial denture prosthesis (RPDP) wearers participated in the study. Among them, 10 subjects were Kennedy Class III partially edentulous and 9 with posterior edentulism (Class I). All presented a complete and full dentate opposing arch. The subjects chewed samples of carrots and peanuts with and without their prosthesis. The granulometry of the expectorated boluses from carrot and peanuts was characterized by median particle size (D50), determined at the natural point of swallowing. Number of chewing cycles (CC), chewing time (CT) and chewing frequency (CF=CC/CT) were video recorded. RESULTS: With RPDP, the mean D50 values for carrot and peanuts were lower [Repeated Model Procedures (RMP), F=15, p<0.001] regardless of the type of Kennedy Class. For each food, mean CC, CT and CF values recorded decreased (RMP, F=18, F=9, and F=20 respectively, p<0.01). With or without RPD, the boluses' granulometry values were above the masticatory normative index (MNI) determined as 4,000 µm. CONCLUSION: RPDP rehabilitation improves the ability to reduce the bolus particle size, but does not reestablish fully the masticatory function. CLINICAL RELEVANCE: This study encourages the clinical improvement of oral rehabilitation procedure. .


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Young Adult , Denture, Partial, Removable , Mastication/physiology , Jaw, Edentulous, Partially/physiopathology , Jaw, Edentulous, Partially/rehabilitation , Particle Size , Prospective Studies , Time Factors
19.
Rev. Ateneo Argent. Odontol ; 51(2): 29-33, 2013. ilus
Article in Spanish | LILACS | ID: lil-723416

ABSTRACT

El objetivo de esta presentación es ampliar los contenidos de "Atrofia paraprotética de los maxilares", publicado en el número anterior de la RAAO. Acotamos el estudio, presentación y resolución de casos aaquellos que presentan una brecha desdentada con soporte dento mucoso, donde las prótesis ejercen presión sobre el terreno mucoso que finalmente essoportado por el hueso remanente. Como consecuencia de esta presión obtenemos reabsorciones que, según extensión y localización, tendrán diferentes niveles de complejidad.Aquí también haremos la evaluación de los efectos no deseados de las prótesis parciales removibles dentomuco-soportadas. Incluiremos también su biomecánica, su diseño más aconsejado y resoluciones implantoasistidasde mínima, mediana y óptima prevención.


Subject(s)
Humans , Dental Prosthesis Design , Denture, Partial, Fixed/adverse effects , Alveolar Bone Loss/rehabilitation , Jaw, Edentulous, Partially/rehabilitation , Biomechanical Phenomena , Oral Surgical Procedures, Preprosthetic , Bone Resorption/physiopathology
20.
Dent. press implantol ; 5(4): 38-44, Oct.-Dec. 2011. ilus
Article in Portuguese | LILACS, BBO | ID: lil-699633

ABSTRACT

A utilização de implantes curtos (6,0–8,5mm) no tratamento reabilitador vem sendo bastante empregada em locais onde a altura óssea é limitada ou em regiões próximas a estruturas anatômicas importantes. Historicamente, o uso de implantes curtos tem sido associado a menores taxas de sucesso quando comparados com implantes de comprimento convencional. Entretanto, estudos clínicos recentes mostram uma similaridade na taxa de sucesso de implantes curtos e convencionais. Tanto para o clínico quanto para o paciente, esse tratamento apresenta-se como uma alternativa simples e segura, devido à redução dos custos, procedimentos cirúrgicos, morbidade e tempo de tratamento. Devido à similaridade nas taxas de sucesso, a indicação de implantes curtos pode ser feita em praticamente todos os casos, assim substituindo a realização de procedimentos invasivos para reconstrução do volume ósseo. O presente artigo apresenta uma resolução clínica que mostra a utilização de implantes curtos em mandíbula e maxila.


Short dental implants (6.0-8.5 mm) have been widely used in the rehabilitation of atrophic areas or in sites close to important anatomic structures. Historically, short implants were associated with lower success rates when compared with the treatment using long implants (>8.5 mm). However, recent clinical researches show similar success rates to short and long implants. Moreover, this sort of treatment is considered a simple and safe option for both patients and surgeons. It has the potential of decreasing costs, number of surgical interventions, treatment time and morbidity. Due to the similarity between both types of implants, short implants have been largely used as a substitute for invasive surgical interventions for bone volume reconstruction. This paper shows short dental implants as a safe clinical option for the rehabilitation of atrophic maxilla and mandible.


Subject(s)
Humans , Female , Middle Aged , Jaw, Edentulous, Partially/rehabilitation , Dental Implantation , Dental Prosthesis, Implant-Supported , Mandible , Maxilla , Osseointegration
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