Article
Medicine, General & Internal
Mahmut Emin Celik
Summary: This study aimed to develop a computer-assisted detection system based on deep convolutional neural networks for the detection of third molar impacted teeth. The results showed that Faster RCNN with ResNet50, AlexNet, and VGG16 as the backbone had good performance, while YOLOv3 had the highest accuracy as a detector.
Article
Dentistry, Oral Surgery & Medicine
Ruming Shen, Shuaijie Chen, Jiayi Shen, Lingchun Lv, Tiemin Wei
Summary: The study found an association between tooth loss and all-cause and cardiovascular mortality. The risk of mortality increased with the number of missing teeth, but did not continue to increase after reaching 10 missing teeth. This association was stronger in younger adults.
JOURNAL OF PERIODONTOLOGY
(2023)
Article
Veterinary Sciences
Leah Taylor, Lan Liu, Stephanie Goldschmidt
Summary: This study evaluated the success rate of orthodontic treatment of linguoverted mandibular canines in dogs using a directly applied inclined plane device. The study found that the inclined plane device has a high success rate in treating linguoverted mandibular canines, with a median treatment time of 6 weeks.
FRONTIERS IN VETERINARY SCIENCE
(2023)
Article
Dentistry, Oral Surgery & Medicine
Muhammad H. A. Saleh, Mustafa Tattan, Giuseppe Troiano, Himabindu Dukka, Andrea Ravida, Robert Levine, Hom-Lay Wang, Preston D. D. Miller
Summary: The study developed and evaluated a modified version of the periodontal risk score (PRS) that showed strong predictive capability for tooth loss due to periodontitis, providing a powerful tool for establishing tooth prognosis.
JOURNAL OF PERIODONTOLOGY
(2023)
Article
Geriatrics & Gerontology
Y. -S. Lin, Q. Wang, Z. -K. Shen, H. -X. Sun, C. Wu, H. He, G. -Q. Zou, F. Xu, Y. -L. Bu, J. -W. Li, C. Zhao, M. Hong, X. Lu, Jin-Shui Xu, Wei Gao
Summary: This study found that the loss of occlusal pairs of teeth is associated with an increased risk of sarcopenia in the elderly population in China, particularly in females and older individuals.
JOURNAL OF NUTRITION HEALTH & AGING
(2022)
Article
Dentistry, Oral Surgery & Medicine
Kug Jin Jeon, Chena Lee, Yoon Joo Choi, Sang-Sun Han
Summary: The study revealed that as the position of posterior teeth became more posterior, the buccolingual dimension of the roots increased, the buccal bone thickness increased, and the distance to the mandibular canal became shorter. Contact was the most common relationship between the buccal cortical bone and root in the mesial root of the first molars and first premolars.
CLINICAL ORAL INVESTIGATIONS
(2021)
Article
Dentistry, Oral Surgery & Medicine
Eun Joo Kang, Seok-joo Moon, Kyoungmin Lee, In Hae Park, Jung Sun Kim, Yoon Ji Choi
Summary: Using a nationwide population cohort database, this study found that poor dental health, especially missing teeth, is highly associated with an increased risk of various cancers.
Article
Multidisciplinary Sciences
Yuan Mu, Xin Huang, Rui Liu, Yulin Gai, Na Liang, Daiqing Yin, Lei Shan, Shixia Xu, Guang Yang
Summary: The loss of specific genes in toothless and enamel-less mammals may lead to the degeneration or loss of teeth and enamel. Additionally, the results of the study support the hypothesis of mineralized tooth loss in the common ancestor of certain mammalian lineages.
Article
Dentistry, Oral Surgery & Medicine
Won-Bum Lee, Yong-Deok Kim, Sang-Hun Shin, Jae-Yeol Lee
Summary: This study investigated dental problems related to teeth in mandibular fracture lines and identified factors contributing to these problems. The treatment options were influenced by the amount of bony displacement, tooth mobility, and pre-existing marginal alveolar bone loss.
DENTAL TRAUMATOLOGY
(2021)
Article
Dentistry, Oral Surgery & Medicine
Juliana Maier, Camila Silveira Sfreddo, Ana Paula Pereira Reiniger, Karla Zanini Kantorski, Ulf M. E. Wikesjo, Carlos Heitor Cunha Moreira
Summary: This study evaluated the relationship between the residual periodontal ligament in extracted teeth and the indications for extraction, finding that a large proportion of teeth extracted for periodontal indications could potentially have been maintained based on the remaining periodontal ligament.
INTERNATIONAL DENTAL JOURNAL
(2021)
Article
Chemistry, Physical
Luigi Canullo, Giampiero Rossi-Fedele, Francesca Camodeca, Maria Menini, Paolo Pesce
Summary: This study found that after complete bone grafting following extraction of impacted wisdom teeth, the experimental group had less bone loss in the socket compared to the control group filled with collagen sponge and blood clot. However, there was no statistically significant difference between the two groups in terms of periodontal parameters and soft tissue healing.
Article
Dentistry, Oral Surgery & Medicine
Maurits C. F. M. de Kuijper, Eric W. Meisberger, Amarins G. Rijpkema, Cathleen T. Fong, Jantien H. W. De Beus, Jantien H. W. De Beus, Mutlu Ozcan, Marco S. Cune, Marco M. M. Gresnigt
Summary: The study found that the survival rate of molars undergoing complex endodontic treatment was 91.7% after 89 months. Factors such as adjacent tooth absence and deviance in root canal morphology significantly decreased the probability of tooth survival, while inadequate coronal seal and root canal morphology deviance significantly decreased the probability of endodontic healing.
JOURNAL OF DENTISTRY
(2021)
Article
Medicine, General & Internal
So Young Kim, Chang Ho Lee, Dae Myoung Yoo, Mi Jung Kwon, Ji Hee Kim, Joo-Hee Kim, Soo-Hwan Byun, Bumjung Park, Hyo-Jeong Lee, Hyo Geun Choi
Summary: This study found that the number of missing teeth is associated with an increased risk of mortality, particularly for deaths related to metabolic disease, digestive disease, and trauma.
FRONTIERS IN MEDICINE
(2022)
Article
Dentistry, Oral Surgery & Medicine
Runzhi Guo, Qianyao Yu, Yifan Lin, Jing Li, Yiping Huang, Weiran Li
Summary: For bimaxillary protrusion patients, the pulpal blood flow of the anterior teeth temporarily increases after orthodontic appliance removal and returns to non-orthodontic levels after 3 months. This effect is more pronounced in adolescent patients.
Article
Medicine, General & Internal
Jeong-In Kim, Choong-Ho Choi, Ki-Ho Chung
Summary: The study found an association between metabolic syndrome and its components and the number of remaining teeth in postmenopausal women in Korea. Abdominal obesity, hypertension, diabetes, dyslipidemia, and MetS prevalence are related to tooth loss in postmenopausal women.
JOURNAL OF CLINICAL MEDICINE
(2021)
Article
Geography, Physical
A. M. Jukar, S. K. Lyons, P. J. Wagner, M. D. Uhen
Summary: Research shows that a low magnitude extinction event of large mammals occurred in the Indian Subcontinent approximately 30,000 years after the arrival of Homo sapiens. The co-evolution hypothesis between humans and animals, as well as robust population networks and climatic refugia, are suggested to have played a significant role in the survival of megafauna in this region.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Evolutionary Biology
Donald R. Prothero, Daryl Domning, R. Ewan Fordyce, Scott Foss, Christine Janis, Spencer Lucas, Katherine L. Marriott, Gregoire Metais, Darren Naish, Kevin Padian, Gertrud Rossner, Nikos Solounias, Michelle Spaulding, Richard M. Stucky, Jessica Theodor, Mark Uhen
Summary: The name Cetartiodactyla was proposed in 1997 to show the close relationship between Cetacea and Artiodactyla, but the implications of the name are confusing as they are not sister-taxa. It is recommended to abandon the name for taxonomic priority and stability, as it is misleading and confusing.
JOURNAL OF MAMMALIAN EVOLUTION
(2022)
Review
Paleontology
Kathlyn M. Smith, Alexander K. Hastings, Ryan M. Bebej, Mark D. Uhen
Summary: A new specimen of Basilosaurus cetoides was discovered in Albany, Georgia, USA in 2010, providing new insights into the distribution of the species in North America. The study reveals that Basilosaurus was most abundant in the southeastern coastal plain during the late Eocene maximum marine transgression, but declined as the shoreline retreated in the terminal Eocene. The hypothesized shoreline extends the Mississippi embayment farther north than previously noted, indicating limitations on the distribution of Basilosaurus in the Atlantic Coastal Plain.
JOURNAL OF PALEONTOLOGY
(2022)
Letter
Multidisciplinary Sciences
Nadia Al-Mudaffar Fawzi, Clare M. Fieseler, Brian Helmuth, Alexandra Leitao, Mehsin Al-Ainsi, Mohammad Al Mukaimi, Mohammad Al-Saidi, Fahad Al Senafi, Ivonne Bejarano, Radhouan Ben-Hamadou, Josh D'Addario, Ahmad Mujthaba Dheen Mohamed, Bruno W. Giraldes, Lyle Glowka, Maggie D. Johnson, Brett P. Lyons, Daniel Mateos-Molina, Christopher D. Marshall, Sayeed Mohammed, Pedro Range, Mohammad Reza Shokri, John M. K. Wong, Nicholas D. Pyenson
Article
Multidisciplinary Sciences
Carlos Mauricio Peredo, Nicholas D. Pyenson, Mark D. Uhen
Summary: This study examines the lateral palatal foramina in different species of cetaceans and terrestrial artiodactyls, finding consistent internal morphology across observed taxa. It suggests that the lateral palatal foramina observed in extant mysticetes are homologous to those of terrestrial artiodactyls, indicating that these structures are not unique predictors for the presence of baleen in fossil whales, and are likely associated with gingiva or other oral tissue.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Alyson Fleming, Briana Pobiner, Savannah Maynor, David Webster, Nicholas D. Pyenson
Summary: This article reports the discovery of an incomplete skeleton of a Holocene grey whale in North Carolina, USA, which is the most complete North Atlantic grey whale specimen found so far. The provenance of the specimen is consistent with previous research in the southeastern USA, suggesting human exploitation of the grey whale may have started around 500 years prior to its extinction in the North Atlantic.
ROYAL SOCIETY OPEN SCIENCE
(2022)
Editorial Material
Multidisciplinary Sciences
Nicholas D. Pyenson, Paul L. Koch
Summary: Extinct megatooth sharks had a global distribution and played a significant role in ocean food chains.
Article
Multidisciplinary Sciences
Nicholas D. Pyenson, Mehsin Al-Ansi, Clare M. Fieseler, Khalid Hassan Al Jaber, Katherine D. Klim, Jacques LeBlanc, Ahmad Mujthaba Dheen Mohamed, Ismail Al-Shaikh, Christopher D. Marshall
Summary: This study reports the discovery of an isolated fragment of a dugong rib, which may belong to either the extant Dugongidae or an extinct taxon. Its presence suggests the existence of different lineages of sirenians in the Gulf Region during the geological past.
Article
Biochemistry & Molecular Biology
Neil P. Kelley, Randall B. Irmis, Paige E. DePolo, Paula J. Noble, Danielle Montague-Judd, Holly Little, Jon Blundell, Cornelia Rasmussen, Lawrence M. E. Percival, Tamsin A. Mather, Nicholas D. Pyenson
Summary: The discovery of multiple specimens of the giant ichthyosaur Shonisaurus in Nevada, USA suggests that early marine tetrapods also exhibited grouping behavior, potentially linked to reproductive activity, and this behavior has existed for at least 230 million years.
Article
Biodiversity Conservation
Lene Liebe Delsett, Nicholas Pyenson, Feiko Miedema, Oyvind Hammer
Summary: By comparing the hyoid elements of ophthalmosaurid ichthyosaurs and odontocete cetaceans, the study reveals significant differences in skeletal features, suggesting different feeding adaptations in these species. Ophthalmosaurid ichthyosaurs show a more conservative hyoid structure, indicating a lack of adaptation to suction feeding, while odontocete cetaceans display skeletal structures that are better suited for suction feeding. These findings suggest that the hyoid played a lesser role in feeding innovation in ichthyosaurs compared to cetaceans, indicating different evolutionary paths in underwater feeding strategies.
Article
Multidisciplinary Sciences
Kumiko Matsui, Nicholas D. Pyenson
Summary: A Desmostylus tooth from the earliest Miocene (Aquitanian) Skooner Gulch Formation in northern California, USA is reported here. This specimen exhibits both primitive and diagnostic features different from other desmostylid genera, suggesting that Desmostylus has persisted with its distinctive tooth morphology largely unchanged for over 15 million years and possibly originated in western North America.
ROYAL SOCIETY OPEN SCIENCE
(2023)
Article
Multidisciplinary Sciences
Ruth M. M. Morgan, Roger L. L. Kneebone, Nicholas D. D. Pyenson, Sabrina B. B. Sholts, Will Houstoun, Benjamin Butler, Kevin Chesters
Summary: This paper presents the insights from a conversation event that brought together diverse voices from science, arts, and industry to discuss science leadership in times of crises. The core theme identified was the importance of restoring creativity in science, in terms of methods, production and communication, and societal experience. Three key challenges for re-establishing a culture of creativity in science were identified: effective communication of what science is, reevaluating scientists' values, and co-creating science with society. The value of ongoing conversation between different perspectives as a means to achieve this culture was emphasized.
ROYAL SOCIETY OPEN SCIENCE
(2023)
Article
Biology
Ana M. Valenzuela-Toro, Rita Mehta, Nicholas D. Pyenson, Daniel P. Costa, Paul L. Koch
Summary: Body size and feeding morphology play a crucial role in how animals organize themselves within communities. In this study, we investigated the relationships between sex, body size, skull morphology, and foraging behavior in sympatric otariids from the eastern North Pacific Ocean. We found significant differences in size, skull morphology, and foraging behavior among species and sexes, with sea lions showing higher foraging values than fur seals, and males having higher values than females. Additionally, there was a community-wide correlation between skull length and foraging, indicating a preference for nearshore habitats and higher trophic level prey among larger individuals.
Article
Paleontology
Ana M. Valenzuela-Toro, Nicholas D. Pyenson
Summary: Fossil remains of true seals, indicating a shift from a phocid- to an otariid-dominated fauna in the Late Pliocene or Early Pleistocene, have been discovered in the Late Miocene-Pliocene sediments of Guafo Island in southern Chile. This finding expands the known geographic range of fossil seals in the region and suggests a broader environmental tolerance for these species during the late Neogene.