The evolution of dental research in Brazil

doi:10.1590/s1806-83242004000200001

Braz. oral res.

2004

DOI: 10.1590/s1806-83242004000200001

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The evolution of dental research in Brazil

Abstract: The Editorial Board is composed of over 80 ad hoc assistants, who are specialized in dentistry and related areas.

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An Image Recognition Framework for Oral Cancer Cells

Zhang

2021

Journal of Healthcare Engineering

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Oral squamous cell carcinoma (OSCC) is a common type of cancer of the oral cavity. Despite their great impact on mortality, sufficient screening techniques for early diagnosis of OSCC often lack accuracy and thus OSCCs are mostly diagnosed at a late stage. Early detection and accurate recognition of OSCCs would lead to an improved curative result and a reduction in recurrence rates after surgical treatment. The introduction of image recognition technology into the doctor’s diagnosis process can significantly improve cancer diagnosis, reduce individual differences, and effectively assist doctors in making the correct diagnosis of the disease. The objective of this study was to assess the precision and robustness of a deep learning-based method to automatically identify the extent of cancer on digitized oral images. We present a new method that employs different variants of convolutional neural network (CNN) for detecting cancer in oral cells. Our approach involves training the classifier on different images from the imageNet dataset and then independently validating on different cancer cells. The image is segmented using multiscale morphology methods to prepare for cell feature analysis and extraction. The method of morphological edge detection is used to more accurately extract the target, cell area, perimeter, and other multidimensional features followed by classification through CNN. For all five variants of CNN, namely, VGG16, VGG19, InceptionV3, InceptionResNetV2, and Xception, the train and value losses are less than 6%. Experimental results show that the method can be an effective tool for OSCC diagnosis.

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An Image Recognition Framework for Oral Cancer Cells

Zhang

2021

Journal of Healthcare Engineering

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Tendências da produção científica em odontologia no Brasil

Dias¹,

Narvai²,

Rêgo³

2008

Rev Panam Salud Publica

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Profile of Brazilian scientific research in pediatric dentistry based on the 26th Annual Meeting of the SBPqO

et al. 2012

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Purpose: To describe the Brazilian scientific research in pediatric dentistry in 2009 based on the 26 th Annual Meeting of the SBPqO (Brazilian division of the IADR). Methods: All studies on pediatric dentistry were selected from the abstracts presented at the 26 th Annual Meeting of the SBPqO in 2009. They were assessed in terms of subjects, methodology and sampling units. Results: Of the 2,648 abstracts presented, 7.7% were on pediatric dentistry, thereby representing the field with the 4 th greatest participation in the meeting. The Southeast was the most productive region in Brazil, accounting for 70.1% of abstracts. A wide range of subjects were addressed: dental trauma (5.4%), diagnosis of dental caries (4.9%), diet and dental caries (4.4%), endodontic medication (4.4%), developmental enamel defects (3.4%), glass ionomer cement (3.4%), and dental care for pregnant women (3.4%). The cross-sectional design was the most prevalent type of study (52.5%), followed by in vitro studies (23.5%). Only 2.5% of the abstracts were randomized controlled trials. A total of 41.7% of the studies included children aged 0 to 11 years old, while 14.7% used human deciduous teeth. Conclusion: Pediatric dentistry played an important role in Brazilian scientific research in 2009, presenting a broad diversity of subjects and methodological approaches.

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The evolution of dental research in Brazil

Abstract: The Editorial Board is composed of over 80 ad hoc assistants, who are specialized in dentistry and related areas.

Cited by 5 publications

References 0 publications

An Image Recognition Framework for Oral Cancer Cells

An Image Recognition Framework for Oral Cancer Cells

Tendências da produção científica em odontologia no Brasil

Profile of Brazilian scientific research in pediatric dentistry based on the 26th Annual Meeting of the SBPqO

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