Results 41 to 50 of about 4,945 (221)

Jaw‐specific stem cell dynamics are associated with distinct enamel architecture in mouse incisors

Developmental Dynamics, EarlyView.
Abstract Background The continuously growing mouse incisor serves as a model for stem cell‐driven tooth renewal. Although mice possess maxillary and mandibular incisors, most studies have focused on the mandible. Potential differences in structure and renewal between these serially homologous organs remain insufficiently characterized.
Elias Shahin, Jihan Asmar, Sanako Takano, Jimmy K. Hu, Amnon Sharir   +4 more
wiley   +1 more source

Research on the geometric modeling and tooth-flank characteristic of curve-face gear

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2016
Based on the space engagement theory and cam theory, an approach of the tooth generation of curve-face gear, concerned the tooth profile equation, tooth characteristics analysis, manufacture and error evaluation is obtained. The tooth surface equation of
Chao LIN, Zhiqin CAI, Yao WANG
doaj   +1 more source

Natural language processing‐based emotion and usage analysis of an AI‐powered chatbot for epilepsy support

Epilepsia Open, EarlyView.
Abstract Objective Artificial intelligence (AI)‐powered chatbots are increasingly used for patient education and mental health support, yet their effectiveness in epilepsy care remains underexplored. This study examines text‐based interactions between users and EpiloBot, an epilepsy‐focused chatbot, to understand conversational patterns and emotional ...
Keiichi Watanuki, Ryoya Oba, Naoki Nozawa, Tomoki Ishihara, Koko Oga, Takayuki Iwayama, Takafumi Shiganami, Sayaka Kobayashi, Hironori Kuga, Haruo Yoshimasu, Izumi Kuramochi   +10 more
wiley   +1 more source

Design and Analysis of the Tooth Profile of Double Generating-wave Swing-rod Movable Tooth Drive

Jixie chuandong, 2015
To realize the controllable of the motion state of double generating- wave swing- rod movable tooth drive,the reverse design of wave generator tooth profile is carried out by using the complex number vector method based on the given motion law of the ...
Yi Yali, Shao Cang, Jin Herong, An Zijun
doaj  

Ordered assembly of Cas12a for better performance of CRISPR/Cas system with application to the diagnosis of dental caries

Interdisciplinary Medicine, EarlyView.
Here, we present a tetrahedral DNA framework (TDF)‐mediated Cas12a ordered assembly strategy. TDFs arrange CRISPR/Cas12a into ordered structures controllably, enhancing catalytic efficiency through localized Cas12a hotspots while maintaining spatial intervals to facilitate substrate diffusion.
Yining Zhao, Panpan Qiao, Yujing Zeng, Murtaza Sayed, Qin Mi, Juan Zhang, Genxi Li   +6 more
wiley   +1 more source

Perceived Educational Value of a Self‐Developed 3D‐Printed Pediatric Dentistry Simulator

Journal of Dental Education, EarlyView.
ABSTRACT Purpose To design and assess a 3D‐printed pediatric dentistry simulator and to evaluate its perceived educational value and realism through student and expert feedback. Methods A maxillary simulator that is mountable on phantom heads was developed and produced by desktop stereolithography with single‐use inserts, enabling proximal caries ...
Michel Benyamin, Sandrella Hamdan, Timothy Fasham, Samuel Morice, Stephane Le Goff, Maria‐Antonietta D'Agostino, Marie Jannot, Yasmine Smail, Jean‐Pierre Attal, Hélène Gouze, Elisabeth Dursun, Philippe Francois   +11 more
wiley   +1 more source

Modelling, design and analysis of offset, non-orthogonal and profile-shifted face gear drives

Advances in Mechanical Engineering, 2018
This article proposes the application of a profile-shifted grinding disc to generate an offset, non-orthogonal and profile-shifted face gear. A detailed investigation of the modelling, tooth geometry and contact characteristics of the offset, non ...
Xuezhong Fu, Zongde Fang, Yanmei Cui, Xiangying Hou, Jianhua Li   +4 more
doaj   +1 more source

Microbial burden of periodontal diseases and its clinical application: The stage, grade, and furcation matter

Journal of Periodontology, EarlyView.
Abstract Background Periodontal diseases are associated with dysbiotic oral microbial communities, but clinically applicable measures that reflect microbial burden across disease severity and progression remain limited. This study aimed to assess the oral microbial burden of periodontal diseases by evaluating salivary and subgingival lipopolysaccharide
Anbo Dong, Susanna Paju, Jaakko Leskelä, Muhammed Manzoor, Jukka Putaala, Pauli Ylikotila, Eija Könönen, Pirkko Pussinen, Svetislav Zaric   +8 more
wiley   +1 more source

Study on the Tooth Tip Sharpening of Face Gear with Circular Arc Profile

Jixie chuandong, 2018
Considering the advantages of the circular arc gear and the face gear,the gear drive with circular arc tooth profile is put forward. In order to advance the machining application of the face gear,the face gear blank size must be determined.
Sheng Wei, Feng Zhanrong, Wang Lixia, Zou Meng   +3 more
doaj  

Impact of toothbrush type and periodontal phenotype on root coverage stability: A 6‐year observational follow‐up of a randomized clinical trial

Journal of Periodontology, EarlyView.
Abstract Background This 6‐year observational follow‐up of a randomized, parallel‐arm clinical trial evaluated the association between toothbrush type and periodontal phenotype on the long‐term stability of the gingival margin (GM) following coronally advanced flap (CAF) surgery.
Raffaele Acunzo, Enrico Limiroli, Silvia Ricoboni, Giorgia Saracino, Giulio Rasperini   +4 more
wiley   +1 more source