Results 11 to 20 of about 788,740 (309)

Exploring the potential of dental calculus to shed light on past human migrations in Oceania [PDF]

Nature Communications
The Pacific islands and Island Southeast Asia have experienced multiple waves of human migrations, providing a case study for exploring the potential of ancient microbiomes to study human migration. We perform a metagenomic study of archaeological dental
Irina M. Velsko, Zandra Fagernäs, Monica Tromp, Stuart Bedford, Hallie R. Buckley, Geoffrey Clark, John Dudgeon, James Flexner, Jean-Christophe Galipaud, Rebecca Kinaston, Cecil M. Lewis, Elizabeth Matisoo-Smith, Kathrin Nägele, Andrew T. Ozga, Cosimo Posth, Adam B. Rohrlach, Richard Shing, Truman Simanjuntak, Matthew Spriggs, Anatauarii Tamarii, Frédérique Valentin, Edson Willie, Christina Warinner   +22 more
doaj   +3 more sources

Auxiliary Diagnosis of Dental Calculus Based on Deep Learning and Image Enhancement by Bitewing Radiographs [PDF]

Bioengineering
In the field of dentistry, the presence of dental calculus is a commonly encountered issue. If not addressed promptly, it has the potential to lead to gum inflammation and eventual tooth loss.
Tai-Jung Lin, Yen-Ting Lin, Yuan-Jin Lin, Ai-Yun Tseng, Chien-Yu Lin, Li-Ting Lo, Tsung-Yi Chen, Shih-Lun Chen, Chiung-An Chen, Kuo-Chen Li, Patricia Angela R. Abu   +10 more
doaj   +3 more sources

Metagenomic analysis of ancient dental calculus reveals unexplored diversity of oral archaeal Methanobrevibacter [PDF]

Microbiome, 2021
Background Dental calculus (mineralised dental plaque) preserves many types of microfossils and biomolecules, including microbial and host DNA, and ancient calculus are thus an important source of information regarding our ancestral human oral microbiome.
Lena Granehäll, Kun D. Huang, Adrian Tett, Paolo Manghi, Alice Paladin, Niall O’Sullivan, Omar Rota-Stabelli, Nicola Segata, Albert Zink, Frank Maixner   +9 more
doaj   +3 more sources

Salivary proteomic profile of dogs with and without dental calculus [PDF]

BMC Veterinary Research, 2020
Background Dogs’ saliva is a complex mixture of inorganic and organic constituents, rich in proteins. Therefore, knowing the saliva composition of these animals is extremely important to identify the presence of proteins that may be involved in ...
Mayara Bringel, Paula Karine Jorge, Priscila Amanda Francisco, Cadance Lowe, Robinson Sabino-Silva, Bella Luna Colombini-Ishikiriama, Maria Aparecida de Andrade Moreira Machado, Walter Luiz Siqueira   +7 more
doaj   +3 more sources

Ancient dental calculus preserves signatures of biofilm succession and interindividual variation independent of dental pathology. [PDF]

PNAS Nexus, 2022
Dental calculus preserves oral microbes, enabling comparative studies of the oral microbiome and health through time. However, small sample sizes and limited dental health metadata have hindered health-focused investigations to date.
Velsko IM, Semerau L, Inskip SA, García-Collado MI, Ziesemer K, Ruber MS, Benítez de Lugo Enrich L, Molero García JM, Valle DG, Peña Ruiz AC, Salazar-García DC, Hoogland MLP, Warinner C.   +12 more
europepmc   +4 more sources

In vitro biomimetic development of artificial dental calculus: a proof of concept study [PDF]

BMC Oral Health
Background To develop an in vitro model to generate dental calculus through a standardized process of biofilm mineralization, and compare it with natural human dental calculus .
Jae-Kook Cha, Kyeong-Won Paeng, Seung Ha Yoo, Chae Hyun Lee, Yoon-Hee Kwon, Ui-Won Jung, Baek-Il Kim, Hoi-In Jung, Magda Feres, Mariano Sanz   +9 more
doaj   +2 more sources

Effect of salivary urea, pH and ureolytic microflora on dental calculus formation and its correlation with periodontal status [PDF]

Journal of Oral Biology and Craniofacial Research, 2023
Context: Dental calculus, formed by mineralization of plaque predisposes to the development of periodontal disease. Aim: To evaluate the influence of salivary urea and the presence of ureolytic bacteria on dental calculus formation and periodontal status
Liberia L. D'souza, Sandeep A. Lawande, James Samuel, Maria Jose Wiseman Pinto   +3 more
doaj   +2 more sources

The effectiveness of an actuator-driven pulsed water jet for the removal of artificial dental calculus: a preliminary study

BMC Oral Health, 2020
Background While hand and ultrasonic scalers are the primary tools used for the removal of dental calculus in periodontal treatment, many studies have shown that they also damage the enamel surface.
Yuka Sato, Masahiro Iikubo, Takashi Nishioka, Nobuhiro Yoda, Tetsuya Kusunoki, Atsuhiro Nakagawa, Keiichi Sasaki, Teiji Tominaga   +7 more
doaj   +2 more sources

Fusobacterium Nucleatum Dna In Dental Calculus From Ancient Siberian Populations

International Dental Journal
Aim or purpose: To assess the possibility of DNA preservation of periodontopathogenic microorganisms in the archaeological material of dental calculus of the Western Siberia populations.
Mikhail Kotov, Yuliya Dombrovskaya, Anastasia Nikolaeva, Batyrbek Aslanov, Artemii Goncharov   +4 more
doaj   +2 more sources

Tooth wear and dental calculus in a group of orca (<i>Orcinus orca</i>) stranded on the New Zealand southern coast. [PDF]

J R Soc N Z
Loch C, Visser IN, Stratford K, White S, Wakefield J, Bull S, Matenga L, Johnstone M, Oliphant-Stewart R.   +8 more
europepmc   +3 more sources