Results 11 to 20 of about 174,196 (336)

Bilateral Symmetrical Fusion of Permanent Mandibular Lateral Incisors and Canines: A Rare Clinical Case [PDF]

open access: yesClinical Case Reports
Fusion is a rare developmental anomaly characterized by the union of two adjacent tooth germs during the morphodifferentiation stage of tooth formation, resulting in a single enlarged tooth.
Suresh Kandagal Veerabhadrappa   +5 more
doaj   +2 more sources

Microbial Relationship of Carious Deciduous Molars and Adjacent First Permanent Molars

open access: yesMicroorganisms, 2023
(1) Epidemiological studies have shown that deciduous molar caries are related to and more severe than permanent molar caries. This study aimed to investigate whether caries subtypes in deciduous molars were associated with caries in first permanent ...
Weihua Shi, Jing Tian, He Xu, Man Qin
doaj   +1 more source

Characterizing oral microbial communities across dentition states and colonization niches

open access: yesMicrobiome, 2018
Methods The present study aimed to identify patterns and processes in acquisition of oral bacteria and to characterize the microbiota of different dentition states and habitats.
Matthew R. Mason   +4 more
semanticscholar   +1 more source

On a model mechanism for the spatial patterning of teeth primordia in the Alligator [PDF]

open access: yes, 1996
We propose a model mechanism for the initiation and spatial positioning of teeth primordia in the alligator,Alligator mississippiensis. Detailed embryological studies by Westergaard & Ferguson (1986, 1987, 1990) show that jaw growth plays a crucial role ...
Cruywagen, G. C.   +6 more
core   +2 more sources

Bony pseudoteeth of extinct pelagic birds (Aves, Odontopterygiformes) formed through a response of bone cells to tooth-specific epithelial signals under unique conditions

open access: yesScientific Reports, 2018
Modern birds (crown group birds, called Neornithes) are toothless; however, the extinct neornithine Odontopterygiformes possessed bone excrescences (pseudoteeth) which resembled teeth, distributed sequentially by size along jaws.
Antoine Louchart   +5 more
doaj   +1 more source

Images in Medicine Representing the Management of Mesiodens in Different Dentitions [PDF]

open access: yesJournal of Clinical and Diagnostic Research
Mesiodens are the most common type of supernumerary teeth, typically located between the two maxillary central incisors [1]. Hereby, three cases of mesiodens in primary, mixed and permanent dentition are presented, along with a discussion of how the ...
Simron Baishya   +3 more
doaj   +1 more source

New early Eocene tapiromorph perissodactyls from the Ghazij Formation of Pakistan, with implications for mammalian biochronology in Asia [PDF]

open access: yes, 2012
Early Eocene mammals from Indo-Pakistan have only recently come under study. Here we describe the first tapiromorph perissodactyls from the subcontinent. Gandheralophus minor n. gen. and n. sp. and G. robustus n. sp.
Bai B.   +37 more
core   +2 more sources

A Literature Review of Stainless Steel Crown for Permanent Molars: Indications, Survival, Periodontal and Radiographic Findings [PDF]

open access: yesJournal of Dentistry
Stainless steel crowns (SSCs) are the preferred choice for restoring primary molars with extensive caries. However, they may be indicated for permanent molars in certain cases as well.
Pooya Vatankhah   +2 more
doaj   +1 more source

Permanent dentition occlusion in Chinese, Indian and Malay group in Malaysia

open access: yesAustralasian Orthodontic Journal, 1989
This survey outlines the proportion of the various features of occlusion in the permanent dentition of the three ethnic races, Chinese, Malay and Indian in Malaysia. The mean age of the high school children surveyed was 16.4 years. The Chinese and Malays
Woon Kok-Chin   +2 more
doaj   +1 more source

Early development of the human dentition revisited

open access: yesJournal of Anatomy, 2018
In this review, classical data on the early steps in human odontogenesis are summarized and updated with specific insights into the development of the upper and lower embryonic jaws to help in understanding some oral pathologies.
M. Hovořáková   +3 more
semanticscholar   +1 more source

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