ABSTRACT
@#Vertical bone augmentation surgery still faces considerable challenges in clinical practice due to various problems, such as difficulty in restoring the ideal alveolar bone height and biological complications, and because it is highly technically sensitive. Plasmatrix is derived from patients’ own blood, and it can effectively promote the vascularization of the regenerated area, recruit stem cells, and reduce inflammation when used in vertical bone augmentation. Based on studies published worldwide, this article first divides vertical bone augmentation into 3 categories according to the height of the expected alveolar ridge, namely, type Ⅰ, the required vertical bone gain is less than 4 mm; type Ⅱ, the required vertical bone gain is between 4-8 mm; and type Ⅲ, the required vertical bone gain is greater than 8 mm. In the type Ⅰ vertical bone augmentation, the plasmatrix bone block is directly placed in the defect area and covered with the plasmatrix membrane before tension-free suturing; in the type Ⅱ vertical bone augmentation, the plasmatrix bone block should be placed in the defect area and fixed with titanium nails and then covered with an absorbable collagen membrane and plasmatrix membrane with a tension-free suture; in the type Ⅲ vertical bone augmentation, additional active ingredients (such as bone morphogenetic protein, autologous bone, etc.) should be added to the plasmatrix bone block and strong fixation (such as titanium nails) should be used. Absorbable collagen and plasmatrix membranes should be used to cover the surface of the bone block, and the flap should be sutured. According to different types of vertical bone augmentation categories, the above methods optimize the vertical bone augmentation effect. This article aims to provide a reference and guidelines for oral clinicians to fully understand plasmatrix and simplify the classification and operation of vertical bone augmentation.
ABSTRACT
@#Tooth loss is accompanied by alveolar bone absorption or defect, resulting in insufficient bone and soft tissue. In addition to restoring the masticatory function of missing teeth, implant treatment should also needs to restore the contour and shape of the dental arch. Guided bone regeneration is a common means of bone increase. Xenogeneic granular bone substitute materials are widely used in the field of clinical bone augmentation due to their advantages of long degradation time and low immunogenicity, but other problems, such as inconvenient operation and low osteogenic activity, remain. Plasmatrix can effectively improve the effect of oral tissue regeneration and reduce the occurrence of postoperative complications, and its application in oral tissue regeneration is gradually increasing. This article first introduces the main application forms of plasmatrix in horizontal bone augmentation (mainly solid plasmatrix membrane and plasmatrix bone block), and reclassifies horizontal bone defects according to commonly used decision-making schemes in clinical bone augmentation, in other words, whether the implant can be placed in the ideal position and whether there is bone dehiscence after implantation. Type Ⅰ defects refers to the situation where the bone at the implant site can allow the insertion of an implant with ideal size, and there is no bone dehiscence around the implant, but the alveolar bone contour is not ideal; type Ⅱ defects refers to the situation that when an ideal size implant is placed at the implant site determined by the future prosthesis position, there will be bones on three sides of the implant, but there is bone dehiscence in the buccal bone wall (the length of bone dehiscence is less than 50% of the implant length); type Ⅲ defects refers to the situation where the bone volume at the implant site is not enough to for the placement of the ideal size implant at the ideal position, and bone grafting is required to restore the bone volume before the implant placement. The application of plasmatrix in different types of bone defects is then described. In type Ⅰ bone defects, the solid plasmatrix membrane is used instead of the collagen membrane; in type Ⅱ bone defects, the bone defect around the implant is filled by plasmatrix bone block and then covered with collagen membrane and solid plasmatrix membrane; and in type Ⅲ bone defects, plasmatrix bone block is used to replace autogenous bone block to fill the defect area, and titanium screws are used for fixation. The defect is then covered with a collagen membrane and a solid plasmatrix membrane. This article aims to provide oral clinicians with a comprehensive understanding of plasmatrix and simplify the guidelines for bone regeneration operations.
ABSTRACT
Se presenta el caso clínico de un anciano de 65 años de edad, que acudió a consulta multidisciplinaria en la Facultad de Estomatología Raúl González Sánchez en La Habana, porque había recibido tratamiento protésico en tres ocasiones durante los últimos dos años y ninguno había reunido los requisitos de retención necesarios para sentirse seguro y cómodo. Se siguió un protocolo que comprendió una fase quirúrgica mediante la aplicación de la técnica implantológica de carga precoz o inmediata por sobredentadura, con lo cual se mejoró la calidad estética y funcional del paciente, y se obtuvo su satisfacción total.
The case report of a 65 year-old old man is presented who attended the multidisciplinary department in Raúl González Sánchez Stomatology Faculty in Havana, because he had received prosthetic treatment in three occasions during the last two years and none had gathered the necessary retention requirements to feel sure and comfortable. A protocol was followed which comprised a surgical phase by means of the use of the implantological technique with early or immediate load by overdenture, with which improved the patient's aesthetic and functional quality, and his total satisfaction was achieved.
Subject(s)
Humans , Male , Aged , Dental Prosthesis , Immediate Dental Implant Loading , Dental Care for Aged , Denture, OverlayABSTRACT
RESUMEN La falta de equidad y justicia en la distribución de alta tecnología no excluye la salud pública en casos donde la disponibilidad es inferior a la demanda. Dentro de la estomatología, la implantología en Cuba dispone de recursos limitados y la valoración multidisciplinaria para rehabilitar mediante implantes dentales al adulto mayor depende de factores objetivos y subjetivos. En el presente artículo, en la medida que se identifican los factores que determinan en la exclusión de adultos mayores para rehabilitarse mediante implantes dentales; se pretende como objetivo exponer consideraciones clínicas y éticas a considerar para una justa y eficaz selección. Se concluyó que los factores subjetivos influyen en los bajos índices de ingresos de adultos mayores para rehabilitarse, y que la consulta multidisciplinaria debe impartir equidad y justicia en la selección considerando la calidad de vida como un factor primordial para alcanzar un envejecimiento saludable.
ABSTRACT The lack of justness and justice in the distribution of high technology don't exclude the public health in cases where the readiness is inferior to the demand. Inside of dentistry, the implantology has in our country limited resources, and the multidisciplinary assesment to rehabilitate by means of dental implant to senior adult it depends on objective and subjective factors. In this article, in the measure that the factors which determine an bigger exclusion of senior adult are identified to become rehabilitated by means of dental implant; it is sought as objective to expose clinical and ethical considerations to consider for a fair and effective selection. Was concluded that in spite of having an established systematical diagnoses, subjective factors influence in the low index of senior adult to become rehabilitated, and that the multidisciplinary consultation should impart justness and justice in the selection considering the quality of life like a primordial factor to reach a healthy aging.
ABSTRACT
En implantología existen diferentes etapas del diagnóstico que garantizan el estudio minucioso del caso. Conseguir una rehabilitación estética, funcional y biomecánicamente estable a largo plazo, que coincida con las expectativas del paciente es el deseo prioritario. El objetivo fue presentar un caso clínico con resultados exitosos por la adecuada planificación de la rehabilitación implantológica. Se presentó una paciente femenina de 53 años que perdió un incisivo central superior y el lateral adyacente presentaba discromía, gran pérdida ósea irrecuperable y vestibularización. Se llevaron a cabo cada una de las etapas del diagnóstico implantológico: confección de historia clínica, evaluación del estado de salud del paciente, toma de impresiones para el estudio de las relaciones intermaxilares en el articulador, confección de encerado diagnóstico y de férula quirúrgica y, finalmente, se realizó cirugía electiva y se colocó a nivel de 11 y 12 dos implantes; este último posextracción y ambos con carga inmediata. Se utilizó técnica de regeneración ósea y manejo de los tejidos blandos adecuadamente por ser una zona de alto compromiso estético, todo esto en una sola fase quirúrgica. Con esto se demostró que un diagnóstico y plan de tratamiento adecuados constituyen la clave de todo procedimiento implantológico(AU)
In dental implantology, there are different phases of diagnosis that provide a meticulous study of each case. Obtaining an esthetical, functional, biomechanical and long lasting rehabilitation that meets the patient´s expectations is our priority. This paper was intended to present a clinical case with successful results from an adequate planning of the implantological rehabilitation. A 53 years old female patient, who lost the11th tooth, had adjacent dischromy in the 12th tooth and significant bone loss and vestibularization. Every phase of the implant diagnosis were carried out: making of the medical history, the evaluation of the patient´s health, taking of maxillary impressions to study the intermaxillary ratios assisted by the articulator equipment, diagnostic waxing and surgical splint were made and, finally, elective surgery was performed to place two dental implants, one of them after removal and both with immediate charge. Bone regeneration technique and the gentle handling of soft tissues allowed making all this in a single surgical phase, since this is a highly compromised area from the esthetical viewpoint. It was proved that correct diagnosis and treatment are the key of every dental implant procedure(AU)
Subject(s)
Humans , Female , Middle Aged , Dental Implants/adverse effects , Dental Implantation/methods , Mouth Rehabilitation/adverse effects , Bone Regeneration/physiologyABSTRACT
Purpose: To present results of a survey on the status of an implantology amongst implant-practicing dentist across the world in 2009. Materials and Methods: A questionnaire was sent to the members of EAO (European Association of Osseointegration), ICOI (International Congress of Osseointegrated Implants), ISOI (Indian Society of Oral Implantologists), Asian Academy of Osseointegration (AAO), Deutsche Gasellschaft Fur Orale Implantologie (DGOI), Philippines Implant Organization, Korean Society of Oral Implantologist, Japanese Association of OralIimplantologists, Chinese Dental Association, Pakistan Dental Association, asking for the personal (anonymous) background data and their implantology concepts. Specific questions dealt with level of recognition of implants, use of implants, superstructures, techniques followed, and materials used. Results: A total of 1500 (63.6%) of the 2358 questionnaires were answered. Dental implants were the most preferred treatment modality for restoring the missing teeth. Threaded implants were the most preferred. Cement retained implant prosthesis was the most preferred restoration procedure. Dentists believe that the general dentist should practice dental implant treatment modality, preferably teamwork. Immediate loading was the much-accepted concept among the dentists of the developed nations. Conclusion: Dental implants were much accepted treatment modality for the replacement of missing teeth. Most the dentists follow the well documented technique and proven materials, which have been documented in the literature, an evidenced based practice, thus, delivering the best to their patients. Dentists from the developing nations agreed to have standardization in implants.