Treatment Outcomes of Implant-Supported Maxillary Obturator Prostheses in Patients with Maxillary Defects: A Systematic Review

Molinero‐Mourelle, Pedro; Helm, Alexandra; Cobo-Vázquez, Carlos; Lam, Walter Yu Hang; Azevedo, Luís; Pow, Ehn; Gómez‐Polo, Miguel

doi:10.11607/ijp.6642

Cited by 11 publications

(20 citation statements)

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“…An obturator is a special prosthesis that is constructed to restore lost maxillary tissues ( Figure 4 h) and functional capabilities (mastication, deglutition, speech, aesthetics) following a maxillectomy [ 192 , 193 , 194 ]. Despite advancements being made in materials science, there are only a few material choices for the construction of obturators [ 195 ].…”

Section: Applications Of Pmmamentioning

confidence: 99%

Prosthodontic Applications of Polymethyl Methacrylate (PMMA): An Update

2020

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A wide range of polymers are commonly used for various applications in prosthodontics. Polymethyl methacrylate (PMMA) is commonly used for prosthetic dental applications, including the fabrication of artificial teeth, denture bases, dentures, obturators, orthodontic retainers, temporary or provisional crowns, and for the repair of dental prostheses. Additional dental applications of PMMA include occlusal splints, printed or milled casts, dies for treatment planning, and the embedding of tooth specimens for research purposes. The unique properties of PMMA, such as its low density, aesthetics, cost-effectiveness, ease of manipulation, and tailorable physical and mechanical properties, make it a suitable and popular biomaterial for these dental applications. To further improve the properties (thermal properties, water sorption, solubility, impact strength, flexural strength) of PMMA, several chemical modifications and mechanical reinforcement techniques using various types of fibers, nanoparticles, and nanotubes have been reported recently. The present article comprehensively reviews various aspects and properties of PMMA biomaterials, mainly for prosthodontic applications. In addition, recent updates and modifications to enhance the physical and mechanical properties of PMMA are also discussed.

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Section: Applications Of Pmmamentioning

confidence: 99%

Prosthodontic Applications of Polymethyl Methacrylate (PMMA): An Update

2020

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“…Sin embargo, se ha visto que la calidad de vida de los pacientes tratados con prótesis obturadoras o tratados mediante transferencia de colgajos libres son similares permitiendo en el primer caso hacer un seguimiento más cercano de cualquier recidiva tumoral. 15,28 En lo referente a la supervivencia de los implantes, Butterworth et al coloco 131 implantes cigomáticos en 49 pacientes, de ellos el 49 % recibieron radioterapia antes o después de la inserción de los implantes con una supervivencia a 12 meses del 94 % y a 60 meses del 92 %. El concluye que cuando la instalación de los implantes es secundaria la supervivencia en pacientes oncológicos es más baja, sin embargo, cuando los implantes son colocados de manera primaria las tasas de éxito son bastante aceptables con una rehabilitación más rápida y un menor número de cirugías que resultan más riesgosas luego de la Complicaciones y satisfacción de pacientes rehabilitados con implantes cigomáticos extrasinusales en una clínica privada de Quito -Ecuador: un estudio retrospectivo 2020 -2021 Cedillo, M. / Sandoval, F. / Paz y Miño, E. 2021 radioterapia.…”

Section: Discussionunclassified

“…32 En el caso de satisfacción de pacientes con defectos oncológicos, la literatura ha reportado que los obturadores soportados por implantes pueden proveer una mejor retención a las prótesis y pueden incrementar la satisfacción de los pacientes respaldando nuevamente su indicación en estos casos. 28…”

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Complicaciones y satisfacción de pacientes rehabilitados con implantes cigomáticos en una clínica privada de Quito – Ecuador

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Miño

2021

OdontoInvestigación

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El tratamiento de maxilares atróficos mediante implantes cigomáticos fue introducido de manera inicial por Branemark en 1988, a partir de entonces se han presentado varias modificaciones en cuanto a sus indicaciones, planificación prequirúrgica y técnica quirúrgica. Siendo en la actualidad una alternativa segura y predecible a largo tiempo. El objetivo del presente estudio fue analizar la presencia de problemas biológicos y biomecánicos, así como la satisfacción de los pacientes rehabilitados con implantes cigomáticos extrasinusales con carga inmediata para lo cual se revisó de manera retrospectiva 21 implantes cigomáticos instalados en 6 pacientes que presentaban tanto maxilares atróficos como maxilares con secuela de maxilectomia quienes fueron tratados en una clínica privada de la ciudad de Quito – Ecuador. Los resultados de este estudio demostraron que solo un 9,52 % de los implantes presentó complicaciones biológicas, de las cuales 1 implante presento comunicación bucosinusal (4.76 %) y 2 implantes presentaron sinusitis maxilar- (9,52 % - se repite el implante afectado con la comunicación buco-sinusal); Además todos los pacientes brindaron respuestas satisfactorias en cuanto a la satisfacción general al tratamiento. Se concluye que la técnica de implantes cigomáticos extrasinusales es una técnica confiable y reproducible que genera una alta satisfacción en los pacientes.

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“…Alcohol and tobacco consumption are still considered the most important risk factors associated with oral cancer in Europe [48] , but their consumption has been relatively stable [49] . In 90% of oral cancer cases, it concerns squamous cell carcinoma [50,51] .…”

Section: Epidemiologymentioning

confidence: 99%

“…Early diagnosis of MSCC is directly correlated with improved survival [53] . However, (pre) malignant lesions might present subtly and detection therefore usually requires skilled physicians and dentists [51] . Dentists are uniquely situated in the Netherlands to detect oral cancer early, because patients visit the dentist periodically for routine check-ups [54] .…”

Section: Clinical Presentation and Evaluation Of Msccmentioning

confidence: 99%

Oral Squamous Cell Carcinoma of the Maxilla

Slieker¹

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Purpose: For planning of the surgical resection, computed tomography (CT) and magnetic resonance imaging (MRI) are commonly used for the preoperative assessment of bone invasion of the maxilla.The purpose of this study was to compare the diagnostic test accuracy of CT and MRI for detecting bone invasion of the maxilla in patients with squamous cell carcinoma of the maxilla (MSCC). Materials and Methods:We conducted a retrospective cross-sectional study and enrolled a consecutive number of patients with primary MSCC between 2000 and 2017 who underwent either preoperative CT or MRI scans. The outcome variable was the absence or presence of bone invasion, with histopathologic examination of the resection specimen as the gold standard. The predictor variable was the imaging technique (CT and MRI). The imaging results on bone invasion were compared with the histopathologic results. Sensitivity and specificity were calculated, and the 2-sided Fisher exact test was used to calculate statistically significant differences between the unpaired CT and MRI results. Receiver operating characteristic curves were computed, and the area under the curve (AUC) was calculated. Results:The study included 72 patients (29 male and 43 female patients) with a mean age of 72 years.A total of 41 CT scans and 31 MRI scans were available. Histopathologic examination showed bone invasion in 45 cases: 26 of 41 patients with CT scans (63%) and 19 of 31 patients with MRI scans (61%).CT yielded 2 false-positive and 2 false-negative results, with a sensitivity of 92%, specificity of 87%, and AUC of 0.895. MRI yielded 5 false-positive and 2 false-negative results, with a sensitivity of 89%, specificity of 58%, and AUC of 0.739. No significant differences were observed for sensitivity (P > .999) and specificity (P = .185). Conclusions:In the absence of metallic dental restorations, CT could detect bone invasion more accurately than MRI in this study; however, the difference was not statistically significant. The imaging method of choice may depend on other situational factors.

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Treatment Outcomes of Implant-Supported Maxillary Obturator Prostheses in Patients with Maxillary Defects: A Systematic Review

Cited by 11 publications

References 0 publications

Prosthodontic Applications of Polymethyl Methacrylate (PMMA): An Update

Prosthodontic Applications of Polymethyl Methacrylate (PMMA): An Update

Complicaciones y satisfacción de pacientes rehabilitados con implantes cigomáticos en una clínica privada de Quito – Ecuador

Oral Squamous Cell Carcinoma of the Maxilla

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