Results 81 to 90 of about 13,891,192 (336)

Maxillary first molar wear: a longitudinal study of children [PDF]

Anatomy & Cell Biology, 2018
The aim of this study is to examine the correlation between tooth wear and age by quantitatively measuring maxillary first molar wear in children. A total of 150 maxillary dental models were analyzed in 30 subjects (male, 11; female, 19) with an age range of 6-14 years.
Kim, Won-Hee, Nam, Shin-Eun, Park, Young-Seok, Lee, Seung-Pyo   +3 more
openaire   +2 more sources

Biomechanical strain patterns in Meckel's cartilage underlie mandibular variation in FGFR2 mouse models

The Anatomical Record, EarlyView.
Abstract Sequence variations in fibroblast growth factor receptor 2 (FGFR2) are associated with craniosynostosis syndromes, disrupting craniofacial development, yet early mandibular alterations remain poorly characterized. This study examined Meckel's cartilage (MC) and mandibular morphology in mouse models of Apert (Fgfr2+/P253R) and Crouzon ...
Fred R. Foster, Alexandre Freire, Ana Cláudia Rossi, Jordan Wilson, Joan T. Richtsmeier, Kazuhiko Kawasaki, Felippe B. Prado, Susan M. Motch Perrine   +7 more
wiley   +1 more source

A biomechanical optimized Zr58Cu25Al14Nb3 bulk metallic glass dental implant improves peri‐implant stress distribution and bone quality under physiological loading

BMEMat, EarlyView.
This study reports a novel Zr58Cu25Al14Nb3 bulk metallic glass that possesses high mechanical strength and low elastic modulus, which further promotes efficient mechanotransduction and significantly improves peri‐implant bone quality upon cyclic occlusal loading.
Yunshu Wu, Feifei Wang, Yuan He, Yaopeng Zhang, Yuhao Zeng, Fu Zheng, Zhanqi Wei, Sukun Tian, Kinon Chen, Baoan Sun, Yuchun Sun   +10 more
wiley   +1 more source

Neonatal tooth in maxillary molar region: A case report

Journal of Oral Research and Review, 2020
Those teeth that erupt within the first month of life are called neonatal teeth. It may occur in any region of the maxillary or mandibular arches but its incidence in the maxillary molar areas is extremely rare.
Avik Narayan Chatterjee, Raju Biswas, Sauvik Galui, Subrata Saha, Subir Sarkar   +4 more
doaj   +1 more source

Effects of maxillary molar distalization using clear aligners during the mixed dentition and early permanent dentition with 3 types of Class II traction: a three-dimensional finite element analysis

BMC Oral Health
Background Impacts of the developmental stages of maxillary second molars, methods for distalization of the maxillary first molars, Class II traction application, and different traction modes on three-dimensional molar movements, anchorage tooth ...
Yue Li, Meiying Wu, Xinyu Xing, Yumiao Chen, Chengle Zhang, Junhan Hu, Congchong Shi   +6 more
doaj   +1 more source

Unique Triple Molar Disorder: A Novel Case of Maxillary Second-Third Molar Transposition Complicated by First Molar Impaction [PDF]

Studies in Multidisciplinary Medical Research
First permanent molar impaction represents an exceptionally rare developmental anomaly, with an estimated prevalence of 0.02%. This case report presents a unique occurrence of maxillary first molar impaction accompanied by an unprecedented transposition ...
Mitra Karbasi kheir, Mohammadreza Elhaie, Abolfazl Koozari   +2 more
doaj   +1 more source

Developmental Morphometry of the Paranasal Sinuses in Subjects Aged 1–25 Years: A Computed Tomography Study

Clinical Anatomy, EarlyView.
ABSTRACT The present study aimed to evaluate the developmental morphometry of the paranasal sinuses using computed tomography (CT) in subjects aged 1–25 years and to characterize age‐related changes in sinus dimensions, volume, and surface area throughout childhood, adolescence, and young adulthood.
Ceyda Şevval Çetin, Aslıhan Artaş, Ali Atadağ, Ömer Faruk Cihan, Orhan Beger   +4 more
wiley   +1 more source

Clinical management of the ectopic eruption of a maxillary first permanent molar – Case report [PDF]

, 2012
Ectopic eruption is a concept including those clinical cases in which teeth show abnormal eruption pattern and erupt ectopically, in an incorrect position. This abnormality has been pointed out in the literature for the first permanent molars, mainly the
Vargas, Ivana A., Ruschel, Henrique C., Gonçalves, Roberta A. Q.   +2 more
core   +1 more source

Finite element analysis of the impact of different traction anchorage locations on maxillary molar distalization with clear aligners and implant screws

BMC Oral Health
Objective This study aims to evaluate the impact of different implant screw insertion sites and traction point combinations of clear aligners on anchorage control during maxillary molar distalization using a three-dimensional finite element analysis ...
Xiangyu Ma, Chunmiao Jiang, Jie Zhang, Hong Ding, Qianwen Zhang, Zhijie Yang, Tianwei Shang, Cunhui Fan   +7 more
doaj   +1 more source

Digital Template-Guided Microapicoectomy In Maxillary First Molar

International Dental Journal
Introduction: Microsurgical apicoectomy was performed on the mesiobuccal root of a maxillary left first molar with chronic apical periodontitis and an dislocated separated nickel-titanium (NiTi) instrument, assisted by a 3D-printed digital template. Case
Bingchun Li, Shuaimei Xu
doaj   +1 more source