RESUMEN
PURPOSE: Acrylic resin teeth on fixed implant prostheses are subject to time-dependent wear. The purpose of this retrospective analysis is to evaluate and describe the management of such wear in the context of selected variables--patient gender and age, dental arch location, and opposing dentition. The clinical and dental laboratory process to replace the worn teeth is defined as a retread. MATERIALS AND METHODS: A retrospective database review from a single private prosthodontic practice was carried out on all patients who had undergone a retread procedure. The patient pool included 205 arches in 194 patients (70 in men, 135 in women) with a mean age of 57.4 years (range: 19.9 to 80.5 years). The retread procedure is described. RESULTS: The mean time between final prosthesis delivery and retread was 7.8 years (range: 1.1 to 22.9 years). Statistical analysis was significant according to dental arch and opposing dentition. A statistical difference was also noted in patients undergoing multiple retread procedures, with a reduction in time between the subsequent procedures. CONCLUSION: Acrylic resin components of implant-supported hybrid prostheses wear over time and are influenced by a combination of the nature of the opposing dentition and patient habits. The dental laboratory process to retread the implant-supported framework is important for long-term patient care and maintenance of an appropriate vertical dimension of occlusion.
Asunto(s)
Prótesis Dental de Soporte Implantado/estadística & datos numéricos , Alisadura de la Restauración Dental/estadística & datos numéricos , Reparación de la Dentadura/estadística & datos numéricos , Resinas Acrílicas/química , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Arco Dental/patología , Materiales Dentales/química , Dentición , Dentadura Completa , Dentadura Parcial Fija , Femenino , Estudios de Seguimiento , Humanos , Registro de la Relación Maxilomandibular , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores Sexuales , Factores de Tiempo , Diente Artificial/estadística & datos numéricos , Dimensión Vertical , Adulto JovenRESUMEN
The technique for fabricating an accurate implant master cast following the 12-week healing period after Teeth in a Day® dental implant surgery is detailed. The clinical, functional, and esthetic details captured during the final master impression are vital to creating an accurate master cast. This technique uses the properties of the all-acrylic resin interim prosthesis to capture these details. This impression captures the relationship between the remodeled soft tissue and the interim prosthesis. This provides the laboratory technician with an accurate orientation of the implant replicas in the master cast with which a passive fitting restoration can be fabricated.
Asunto(s)
Implantes Dentales , Técnica de Impresión Dental , Pilares Dentales , Materiales de Impresión Dental , Prótesis Dental de Soporte Implantado , Humanos , Modelos DentalesRESUMEN
PURPOSE: The purpose of this patient report is to accurately portray the clinical experience of treating an active bulimic patient by employing an immediately loaded dental implant protocol to provide the patient with an expedited esthetic and functional result. Implementation of a psychometric component statistically quantifies the psychological effects of the oral rehabilitation. MATERIALS AND METHODS: A 34-year-old woman presented with severe dental perimolysis (erosion) resulting from a 28-year history of bulimic behaviors. Clinical and radiographic evaluation of the existing dentition indicated advanced dental erosion and previous restoration attempts in a state of failure. The patient's existing teeth were extracted and treated with full maxillary and mandibular implant-supported prostheses, following the Teeth in a Day® (TIAD) immediate functional loading protocol. Psychometric assessment was conducted through administration of a 20-item questionnaire, as seen in previous literature. RESULTS: Radiographic and clinical analysis suggested all implant fixtures to be viable and accompanied by normal levels of alveolar bone 7 months into treatment. Questionnaire results at the new-patient presentation (T1) resulted in a composite score of 4.0 (SD = 2.9; P = 0.004), indicating severe body-image dysphoria. At 3 months postoperative (T2), the questionnaire score was 0.4 (SD = -1.7; P = 0.09). The final psychometric questionnaire at 7 months (T3) resulted in a score of 0.5 (SD = -1.5; P = 0.12). The patient was followed for a total of 7 years following implant placement. CONCLUSION: In this patient report, oral rehabilitation using the TIAD protocol provided an expedited and predictable alternative method for restoring functional abilities, esthetics, and self-esteem to a severely depressed bulimic patient. Psychometrically, at the postoperative (T2) and final testing period (T3), the patient's body image profile was no longer considered to be significantly different from established normative values.
Asunto(s)
Bulimia/complicaciones , Prótesis Dental de Soporte Implantado , Estética Dental , Carga Inmediata del Implante Dental , Boca Edéntula/rehabilitación , Erosión de los Dientes/etiología , Erosión de los Dientes/rehabilitación , Adulto , Bulimia/psicología , Femenino , Humanos , Psicometría , Radiografía Panorámica , Erosión de los Dientes/diagnóstico por imagen , Extracción DentalRESUMEN
The fabrication of a unilateral device to treat microstomia after trauma is presented. Maximum opening was recorded before treatment. A dual arch impression that captured the dentition and commissure on the affected side was made with vinyl polysiloxane (VPS) impression material. A 1 mm vacuum formed template (VFT) was fabricated over the maxillary dentition, and a 2 mm VFT was fabricated around the commissure. A 0.9 mm (0.036") stainless steel wire was attached with acrylic resin to both templates in order to apply a constant force to the commissure. The use of a helix in the wire allowed for flexibility and adjustment of the retractor. The patient was instructed to wear the retractor for 6 hours per day, and, during a 10-week period, the maximum opening increased from 30 mm to 45 mm.
Asunto(s)
Labio/lesiones , Microstomía/terapia , Férulas (Fijadores) , Resinas Acrílicas/química , Cicatriz/terapia , Contractura/terapia , Aleaciones Dentales/química , Materiales de Impresión Dental/química , Materiales Dentales/química , Diseño de Equipo , Estética Dental , Humanos , Enfermedades de los Labios/terapia , Masculino , Polivinilos/química , Siloxanos/química , Acero Inoxidable/química , Estrés MecánicoRESUMEN
A procedure is described to fabricate a surgical guide to assist in the placement of craniofacial implants for prosthetic auricular rehabilitation. An impression is made of the defect, and a wax pattern of the missing ear is completed and evaluated on the patient. The definitive wax prosthesis is processed in acrylic resin. An occlusal maxillary splint is also fabricated. The occlusal splint and the acrylic resin ear are joined together using an extraoral acrylic resin bar. The resulting surgical guide provides proper orientation of the acrylic resin ear while remaining securely attached to the maxillary arch. This surgical guide can also be utilized for pretreatment radiographic examination.