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Xuejun Zhang, Lei Guo, Jinshan Yan, Zenglu Shi, Mengchen Kang and Jieting Yao
The extended duration of mulching in Xinjiang cotton fields leads to a significant decline in the tensile strength of plastic film. When recycling is in operation, the soil and the spring teeth of the machinery used can easily cause secondary damage and ...
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Deli Jiang, Xuegeng Chen, Limin Yan, Jinhao Zhang, Tao Wu and Xuanhe Fu
Compared with the conventional horizontal conveyor-chain-type plastic-film-picking device, the longitudinal nail-tooth-chain-plate-type plastic-film-picking device developed by our team in the early stage has little tearing effect on the mulching film, a...
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Longyu Fang, Wenwu Yang, Xiwen Luo, Han Guo, Shiyu Song, Qinghai Liu, Haoyang Xie, Weiman Chen, Jianxin Lu, Zhixiang Peng and Guanjiong Li
Due to factors such as a small amount of fertilizer application during rice topdressing and slow machine speed, the ordinary fertilizer discharge device fails to distribute the fertilizer uniformly and accurately as required, making it difficult to meet ...
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Palone Mario, Silvia Squeo de Villagomez, Pellitteri Federica, Francesca Cremonini, Renato Salvatore and Luca Lombardo
Background: To investigate the accuracy of an F22 Aligner system, considering the amount of prescribed movement, tooth type, grip points, sex and age. Methods: Digital models of 120 patients (64 females and 56 males; mean age 35.2 years ± 7.4) affected b...
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Niaz Hamaghareeb Hamasaeed, Intesar Saadallah Toma, Adil Othman Abdullah and Shakhawan Kadir Kadir
(1) Background: The objective of the current investigation was to determine how different dark chocolate concentrations impacted the enamel and dentine microhardness. (2) Methods: Twenty noncarious premolar teeth extracted for orthodontic reasons were us...
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Mohammed E. Sayed, Manawar Ahmad, Hina Naim, Hossam F. Jokhadar, Saad Saleh AlResayes, Nasser M. Alqahtani, Saeed M. Alqahtani, Halah Mohammed Hothan, Jibreel A. Faqihi, Maha Abdu Othman, Halah A. Alaqi, Huda Ali Daak, Nardeen Hakami, Amal M. Masmali and Malak Ibrahim Hakami
It is common to detect a gap between the apical portion of the post and the most coronal part of gutta-percha in a root canal during post and core treatment in endodontically treated teeth. It may compromise the seal that gutta-percha material provides i...
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Natascia Rinaldo, Ilaria Saguto, Federica De Luca, Margherita Neri, Paolo Frisoni and Emanuela Gualdi-Russo
In forensics, the positive identification of decomposed or skeletonized bodies is a fundamental task, with the age-at-death estimation of adult individuals as one of the main objectives. Among different dental methods, root dentin translucency (RDT) is o...
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Wei Chen, Yuzhou Tian, Qiang Sun and Pengfei Zhu
Due to the special meshing of convex and concave tooth profiles, an S-shaped tooth profile gear with a few teeth has the advantage of reducing the contact stress and improving the contact ratio. However, the theoretical inseparability of the center dista...
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Giulia Rubiu, Marco Bologna, Michaela Cellina, Maurizio Cè, Davide Sala, Roberto Pagani, Elisa Mattavelli, Deborah Fazzini, Simona Ibba, Sergio Papa and Marco Alì
Convolutional Neural Network (CNN) models are capable of learning complex patterns and features from images. An automatic teeth segmentation CNN model can accurately and efficiently identify the boundaries and contours of individual teeth in dental radio...
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Heejin Kim, Ko Eun Lee, Yong Kwon Chae, Ok Hyung Nam, Mi Sun Kim, Ji-Hyun Jang, Sung Chul Choi and Hyo-Seol Lee
The characteristics of 3-dimensional (3D) cultured periodontal ligament stem cells derived from permanent teeth (pPDLSCs) and supernumerary teeth (sPDLSCs) were compared and evaluated in this study. pPDLSCs and sPDLSCs were cultured in an ultra-low attac...
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