Virtual Implant Rehabilitation of the Severely Atrophic Maxilla: A Radiographic Study

Manacorda, Michele; Chaurand, Bianca Poletti de; Merlone, A; Tetè, Giulia; Mottola, Francesca; Vinci, Raffaele

doi:10.3390/dj8010014

Cited by 9 publications

(6 citation statements)

References 40 publications

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“…Along with new technologies to study the maxillofacial region, several studies on the automatic detection of odontogenic cysts and tumors have been published [ 14 , 15 , 16 , 17 , 18 ]. However, to our knowledge, this study utilizes the largest dataset for automatic detection targeting maxillofacial lesions, and it is the first study comprising both maxilla and mandible datasets.…”

Section: Introductionmentioning

confidence: 99%

Deep Learning for Automated Detection of Cyst and Tumors of the Jaw in Panoramic Radiographs

Yang

Kim

et al. 2020

JCM

115

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Patients with odontogenic cysts and tumors may have to undergo serious surgery unless the lesion is properly detected at the early stage. The purpose of this study is to evaluate the diagnostic performance of the real-time object detecting deep convolutional neural network You Only Look Once (YOLO) v2—a deep learning algorithm that can both detect and classify an object at the same time—on panoramic radiographs. In this study, 1602 lesions on panoramic radiographs taken from 2010 to 2019 at Yonsei University Dental Hospital were selected as a database. Images were classified and labeled into four categories: dentigerous cysts, odontogenic keratocyst, ameloblastoma, and no lesion. Comparative analysis among three groups (YOLO, oral and maxillofacial surgeons, and general practitioners) was done in terms of precision, recall, accuracy, and F1 score. While YOLO ranked highest among the three groups (precision = 0.707, recall = 0.680), the performance differences between the machine and clinicians were statistically insignificant. The results of this study indicate the usefulness of auto-detecting convolutional networks in certain pathology detection and thus morbidity prevention in the field of oral and maxillofacial surgery.

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Section: Introductionmentioning

confidence: 99%

Deep Learning for Automated Detection of Cyst and Tumors of the Jaw in Panoramic Radiographs

Yang

Kim

et al. 2020

JCM

115

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“…As tilting implants allow for increased implant lengths, tilted implants may be selected as a treatment modality for implant rehabilitation of the dentulous maxilla where additional implant length above 8 mm is considered critical for the survival and success of the rehabilitation. (Manacorda et al, 2020). Due to the slope of the anterior sinus wall, longer 12 mm axially placed implants would often need to be positioned more anteriorly and result in a reduced A-P spread (Wentaschek et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Tilted versus axial implant distribution in the posterior edentulous maxilla: A CBCT analysis

Hamilton

Jamjoom

Alnasser

et al. 2021

Clinical Oral Implants Res

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Objectives: This study aimed to determine whether distally angulating an implant is a successful strategy to avoid the maxillary sinus and the need for bone augmentation, while increasing the anterior-posterior (A-P) implant distribution in the edentulous maxilla. Materials and Methods:In 115 patients with edentulous maxillae, virtual implant planning was performed utilizing cone-beam computer tomographs. Axial (8 mm length) and tilted (12 mm length) dental implants with 30-degree and 45-degree angulation were virtually positioned to avoid entering the maxillary sinus, while maximizing A-P distribution. Measurements were made between the tilted and axial implants to assess the change in A-P distribution of implants at the implant and abutment levels.Results: Forty-seven sites (20.4%) were not able to have either treatment modality with insufficient bone for implant placement. Axial implants were placed more distally than 45-degree and 30-degree tilted implants in 24% and 42% of sites, respectively. The average change in A-P spread measured at the implant level, for 30-and 45-degree tilted implants was −0.25 mm (95% CI −0.76, 0.26) and 1.9 mm (95% CI 1.4, 2.3), respectively. When measured from the center of each multi-unit abutment the average increase in A-P distances for tilted implants appears larger in the 30-degree and 45-degree groups by 0.97 mm and 1.74 mm, respectively compared to measurements at the implant level.Conclusions: Angulating 12 mm implants provides a limited increase in A-P distribution of implants in edentulous rehabilitation in most situations. In certain patients, the use of 8mm axial implants may provide a greater A-P spread.

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“…A pesar que la evidencia clínica con respecto a los implantes angulados parece bastante convincente en cuanto a la distribución de fuerzas oclusales; el periodo de seguimiento de estos casos es menor que el de los implantes cigomáticos por lo que se recomienda realizar nuevos estudios con un periodo de seguimiento más largo donde se compare la supervivencia, el éxito y la satisfacción de pacientes rehabilitados con prótesis sobre implantes angulados vs pacientes rehabilitados con prótesis sobre implantes cigomáticos para así poder para definir conclusiones. 26,27 Por otro lado, ya en el caso de defectos oncológicos de tercio medio el manejo ha sido complejo con frecuencia mediante colgajos microvasculares. 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.…”

Section: Discussionunclassified

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

Bailon

Portilla

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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Virtual Implant Rehabilitation of the Severely Atrophic Maxilla: A Radiographic Study

Cited by 9 publications

References 40 publications

Deep Learning for Automated Detection of Cyst and Tumors of the Jaw in Panoramic Radiographs

Deep Learning for Automated Detection of Cyst and Tumors of the Jaw in Panoramic Radiographs

Tilted versus axial implant distribution in the posterior edentulous maxilla: A CBCT analysis

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

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