260 results match your criteria teeth excavated


Dental microwear of a basal ankylosaurine dinosaur, Jinyunpelta and its implication on evolution of chewing mechanism in ankylosaurs.

PLoS One 2021 10;16(3):e0247969. Epub 2021 Mar 10.

Zhejiang Museum of Natural History, Hangzhou, Zhejiang, People's Republic of China.

Jinyunpelta sinensis is a basal ankylosaurine dinosaur excavated from the mid Cretaceous Liangtoutang Formation of Jinyun County, Zhejiang Province, China. In the present study, its dental microwear was observed using a confocal laser microscope. Jinyunpelta had steep wear facets that covered most of buccal surfaces of posterior dentary teeth. Read More

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Secondary Caries Adjacent to Bulk or Incrementally Filled Composites Placed after Selective Excavation In Vitro.

Materials (Basel) 2021 Feb 16;14(4). Epub 2021 Feb 16.

Department of Oral Diagnostics, Digital Health, Health Services Research, Charité-Universitätsmedizin Berlin, Aßmannshauser Str. 4-6, 14197 Berlin, Germany.

Objectives: selective caries excavation (SE) is recommended for deep carious lesions. Bulk fill composites (BF) may be considered to restore SE-cavities. We compared the susceptibility for secondary caries adjacent to BF versus incrementally filled composites (IF) in SE and non-selectively excavated teeth (NS) in vitro. Read More

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February 2021

The morphology of the Late Pleistocene hominin remains from the site of La Cotte de St Brelade, Jersey (Channel Islands).

J Hum Evol 2021 Mar 29;152:102939. Epub 2021 Jan 29.

Centre for Human Evolution Research, Department of Earth Sciences, Natural History Museum, Cromwell Road, London, SW7 5BD, UK.

Thirteen permanent fully erupted teeth were excavated at the Paleolithic site of La Cotte de St Brelade in Jersey in 1910 and 1911. These were all found in the same location, on a ledge behind a hearth in a Mousterian occupation level. They were originally identified as being Neanderthal. Read More

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Dental pulp calcifications in prehistoric and historical skeletal remains.

Ann Anat 2021 May 27;235:151675. Epub 2021 Jan 27.

Danube Private University, Förthofstraße 2, 3500 Krems-Stein, Austria; Institute of Prehistory and Archaeological Science, University of Basel, Spalenring 145, 4055 Basel, Switzerland. Electronic address:

Background: The prevalence of hard tissue formations in the dental pulp varies considerably. Beside ageing processes and irritations of the dental pulp, etiological associations with cardiovascular disease and dietary habits have been discussed, which are of particular research interest. The aim of this pilot study is to provide new insights on structural and etiological factors involved in the development of pulp calcifications by investigating skeletal remains from different (pre)historic periods. Read More

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Yersinia pestis strains from Latvia show depletion of the pla virulence gene at the end of the second plague pandemic.

Sci Rep 2020 09 3;10(1):14628. Epub 2020 Sep 3.

Institute of Clinical Molecular Biology, Kiel University, Rosalind-Franklin-Straße 12, 24105, Kiel, Germany.

Ancient genomic studies have identified Yersinia pestis (Y. pestis) as the causative agent of the second plague pandemic (fourteenth-eighteenth century) that started with the Black Death (1,347-1,353). Most of the Y. Read More

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September 2020

Self-Limiting versus Rotary Subjective Carious Tissue Removal: A Randomized Controlled Clinical Trial-2-Year Results.

J Clin Med 2020 Aug 25;9(9). Epub 2020 Aug 25.

Department of Endodontics, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London Floor 22 Tower Wing, Guy's Dental Hospital, London SE1 9RT, UK.

Background: the aim of this study was to assess the 2-year pulp survival of deep carious lesions in teeth excavated using a self-limiting protocol in a single-blind randomized controlled clinical trial.

Methods: At baseline, 101 teeth with deep carious lesions in 86 patients were excavated randomly using self-limiting or control protocols. Standardized clinical examination and periapical radiographs of teeth were performed after 1- and 2-year follow-ups (REC 14/LO/0880). Read More

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Influence of selective caries excavation on marginal penetration of class II composite restorations in vitro.

Eur J Oral Sci 2020 10 4;128(5):405-414. Epub 2020 Aug 4.

Department of Conservative Dentistry and Periodontology, University Medical Center Regensburg, Regensburg, Germany.

Selective caries excavation may support pulp preservation. This in vitro study investigated the influence of selective removal of demineralized dentin on marginal integrity of composite restorations as determined by dye penetration. Dentinal caries-like lesions were produced in the approximal surfaces of 40 extracted human molars (ethylenediaminetetraacetate, 0. Read More

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October 2020

Growing up in Ancient Sardinia: Infant-toddler dietary changes revealed by the novel use of hydrogen isotopes (δ2H).

PLoS One 2020 8;15(7):e0235080. Epub 2020 Jul 8.

Department of Human Evolutionary Biology, Harvard University, Boston, Massachusetts, Unitied States of America.

Detailed information about the lives and deaths of children in antiquity is often in short supply. Childhood dietary histories are, however, recorded and maintained in the teeth of both juveniles and adults. Primary tooth dentinal collagen does not turn over, preserving a sequential record of dietary changes. Read More

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September 2020

New insights on Neolithic food and mobility patterns in Mediterranean coastal populations.

Am J Phys Anthropol 2020 10 18;173(2):218-235. Epub 2020 Jun 18.

Université Côte d'Azur, CNRS, CEPAM, France.

Objectives: The aims of this research are to explore the diet, mobility, social organization, and environmental exploitation patterns of early Mediterranean farmers, particularly the role of marine and plant resources in these foodways. In addition, this work strives to document possible gendered patterns of behavior linked to the neolithization of this ecologically rich area. To achieve this, a set of multiproxy analyses (isotopic analyses, dental calculus, microremains analysis, ancient DNA) were performed on an exceptional deposit (n = 61) of human remains from the Les Bréguières site (France), dating to the transition of the sixth to the fifth millennium BCE. Read More

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October 2020

Mandibular molar C-shaped root canals in 5th millennium BC China.

Arch Oral Biol 2020 Sep 25;117:104773. Epub 2020 May 25.

Department of Endodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Province, PR China. Electronic address:

Objective: The aim of this study was to analyze the occurrence and variations in C-shaped canals in ancient Chinese teeth and compare the differences of these features between ancient and age-matched modern populations.

Design: Approximately 5000-year-old craniofacial bone remains were collected from the fossils of 38 individuals (total: 68 mandibular second molars) excavated from the Jiaojia site. The control group comprised of an equal number of randomly selected modern samples. Read More

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September 2020

Unesconia coibensis, gen. et sp. nov., a miniature sponge-associated shrimp from a biodiversity hotspot in the tropical eastern Pacific (Decapoda: Palaemonidae).

Authors:
Arthur Anker

Zootaxa 2020 Feb 4;4731(1):zootaxa.4731.1.8. Epub 2020 Feb 4.

Universidade Federal de Goiás (UFG), Campus Samambaia, Instituto de Ciências Biológicas, ICB-5, Avenida Esperança s/n, Goiânia, GO, 74690-900, Brazil..

A new palaemonid shrimp genus, Unesconia gen. nov., is established to accommodate a peculiar, small, presumably sponge-associated species, Unesconia coibensis gen. Read More

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February 2020

A mobile laboratory for ancient DNA analysis.

PLoS One 2020 18;15(3):e0230496. Epub 2020 Mar 18.

Unité Eco-anthropologie, Muséum National d'Histoire Naturelle, CNRS, Université Paris Diderot, Paris, France.

Mobile devices for on-field DNA analysis have been used for medical diagnostics at the point-of-care, forensic investigations and environmental surveys, but still have to be validated for ancient DNA studies. We report here on a mobile laboratory that we setup using commercially available devices, including a compact real-time PCR machine, and describe procedures to perform DNA extraction and analysis from a variety of archeological samples within 4 hours. The process is carried out on 50 mg samples that are identified at the species level using custom TaqMan real-time PCR assays for mitochondrial DNA fragments. Read More

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Vascularity and Angiogenic Signaling in the Dentine-Pulp Complex of Immature and Mature Permanent Teeth.

Eur Endod J 2019 4;4(2):80-85. Epub 2019 Apr 4.

Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, New Zealand.

ABSTRACT.

Objective: This study aimed to examine the protein and gene expression of vascular endothelial growth factor (VEGF) and angiopoietins-1 and 2 in tissue from healthy and inflamed dental pulps.

Methods: Permanent teeth with pulps diagnosed as healthy or reversible pulpitis were used for immunohistochemistry (IHC) and gene expression experiments. Read More

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Commingled crypts: Comparative health among Byzantine monastics in the Levant.

Authors:
Margaret A Judd

Am J Phys Anthropol 2020 05 7;172(1):70-86. Epub 2020 Jan 7.

Department of Anthropology, University of Pittsburgh, Pittsburgh, Pennsylvania.

Objectives: Early Byzantine (A.D. 330-842) monastic rules stipulated that entrants relinquished familial connections, personal belongings and secular relationships to become part of the ascetic collective that continued in death, resulting in bioarchaeological marginalization, as was the case of the monastics excavated from the Chapel of Robebus at Mount Nebo, Jordan (ca. Read More

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Tooth Extraction in Antiquity.

J Hist Dent 2020 ;68(3):127-144

Emeritus Professor, School of Dentistry University of Athens, Greece.

Tooth extraction was probably the first dental treatment in human history, therefore a tooth forceps usually stood out as its symbol. The procedure in these early years was not easy and it posed many risks. Those extracting the teeth prepared several medicaments in order to remove them without pain or to minimize effort. Read More

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January 2020

The microtensile bond strength test: Its historical background and application to bond testing.

Jpn Dent Sci Rev 2020 Dec 25;56(1):24-31. Epub 2019 Nov 25.

Department of Restorative Dentistry, Faculty of Dentistry, Hokkaido University Graduate School of Dental Medicine, Kita 13, Nishi 7, Kita-ku, Sapporo 060-8586, Japan.

Microtensile bond strength (μTBS) test was introduced in 1994. Since then, it has been utilized profoundly across many bond strength testing laboratories, making it currently one of the most standard and versatile bond strength test. Although it is a static and strength-based method, together with the morphological and spectroscopic investigations, it has been contributing immensely in the advancement of dentin adhesive systems. Read More

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December 2020

Dental ancestry estimation in a 1500 years old human skeleton from Slovenia using a new web-based application rASUDAS.

J Forensic Odontostomatol 2019 09 30;37(2):2-8. Epub 2019 Sep 30.

Freelance Physical Anthropologist, Žiri, Slovenia.

The present study was performed on a skeleton excavated from the Late Roman Period necropolis in Ptuj, Eastern Slovenia. Previous anthropological analysis has revealed that the skeleton belongs to a male, who died in his early twenties; however, determination of ancestry was problematic. The skull displays artificial cranial deformation of circular fronto-occipital type and shows some Asiatic anthroposcopic features. Read More

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September 2019

Mitochondrial DNA analysis of a Viking age mass grave in Sweden.

Forensic Sci Int Genet 2019 09 6;42:268-274. Epub 2019 Jun 6.

Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, 751 08 Uppsala, Sweden. Electronic address:

In 1998, a Viking Age mass grave was discovered and excavated at St. Laurence´s churchyard in Sigtuna, Sweden. The excavated bones underwent osteoarchaeological analysis and were assigned to at least 19 individuals. Read More

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September 2019

Clinical and Microbiological Analysis of Mechanical and Chemomechanical Methods of Caries Removal in Deciduous Teeth.

Oral Health Prev Dent 2019 ;17(3):283-288

Purpose: This study evaluated carious tissue removal by mechanical and chemomechanical methods (Carisolv and Papacárie) through colony-forming unit (CFU) counts of Streptococcus mutans and Lactobacillus sp. Treatment acceptability, presence and level of pain, use of anesthesia, time required for caries removal and pain 24 h after treatment were also compared.

Materials And Methods: A clinical trial with 32 individuals who had at least two deciduous molars with active occlusal caries lesions were selected and randomly divided into two groups (I and II). Read More

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November 2019

Vital pulp therapy: histopathology and histobacteriology-based guidelines to treat teeth with deep caries and pulp exposure.

J Dent 2019 07 21;86:41-52. Epub 2019 May 21.

Department of Endodontics, The Dental College of Georgia, Augusta University, Augusta, GA, USA. Electronic address:

Objectives: Vital pulp therapy (VPT) encompasses distinct treatment modalities for deep caries that approximate the pulp chamber in vital teeth. Confusion exists in the literature in terms of the indication and rationale for each VPT approach. The objectives of the present study are to elucidate the indications for VPT and to present a set of histopathology and histobacteriology-based guidelines for VPT in teeth with deep caries. Read More

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Application of Trace Elemental Profile of Known Teeth for Sex and Age Estimation of Ajnala Skeletal Remains: a Forensic Anthropological Cross-Validation Study.

Biol Trace Elem Res 2020 Feb 27;193(2):295-310. Epub 2019 Apr 27.

UGC-SRF, Institute of Forensic Science and Criminology, Panjab University, Chandigarh, India.

Teeth store crucial information needed for medical, environmental, genomics, public health, and forensic anthropological research work. The prolonged forensic utility of teeth is ensured by their extended postmortem longevity as they can resist almost all sorts of chemical, biological, and physical degradations or destructions. The main aim of the present investigation was to utilize the discriminant functions and regression equations generated from the elemental profile of known teeth for estimating sex and age of unknown human skeletal remains excavated from an abandoned well at Ajnala (Amritsar, India). Read More

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February 2020

Making sense of medieval mouths: Investigating sex differences of dental pathological lesions in a late medieval Italian community.

Am J Phys Anthropol 2019 06 28;169(2):253-269. Epub 2019 Mar 28.

Department of Archaeology, Foggia University, Foggia, Italy.

Objectives: Bioarchaeological investigations of sex-based differences in the prevalence of dental pathological lesions, particularly caries, have drawn considerable attention, and out of this work, two dominant models have emerged. Traditionally, the first model interprets sex-related patterns in caries as a product of gendered differences in diet. A more recent model interprets a generally higher propensity for caries prevalence in females in light of reproductive ecology. Read More

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Isolated teeth from La Ferrassie: Reassessment of the old collections, new remains, and their implications.

Am J Phys Anthropol 2019 05 16;169(1):132-142. Epub 2019 Feb 16.

Département Homme et environnement, Muséum national d'Histoire naturelle, Musée de l'Homme, UMR 7194 CNRS, Université de Perpignan "Via Domitia", EPCC-CERP de Tautavel, Paris, France.

Objectives: We provide the description and comparative analysis of six new teeth from the site of La Ferrassie. Our goal is to discuss their taxonomic attribution, and to provide an updated inventory of Neandertal and modern human remains from La Ferrassie in their associated archeological context.

Materials And Methods: We use external and internal anatomy, classic morphometrics, and geometric morphometrics. Read More

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Diet Evolution and Habitat Contraction of Giant Pandas via Stable Isotope Analysis.

Curr Biol 2019 02 31;29(4):664-669.e2. Epub 2019 Jan 31.

Key Laboratory of Animal Ecology and Conservational Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Southwest China Wildlife Resources Conservation, Ministry of Education, China West Normal University, Nanchong 637009, China; Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming 650223, China. Electronic address:

The ancestral panda Ailurarctos lufengensis, excavated from the late Miocene, is thought to be carnivorous or omnivorous [1]. Today, giant pandas exclusively consume bamboo and have distinctive tooth, skull, and muscle characteristics adapted to a tough and fibrous bamboo diet during their long evolution [1, 2]. A special feature, the pseudo-thumb, has evolved to permit the precise and efficient grasping of bamboo [3, 4]. Read More

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February 2019

Leprosy at the edge of Europe-Biomolecular, isotopic and osteoarchaeological findings from medieval Ireland.

PLoS One 2018 26;13(12):e0209495. Epub 2018 Dec 26.

Department of Microbial Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom.

Relatively little is known of leprosy in Medieval Ireland; as an island located at the far west of Europe it has the potential to provide interesting insights in relation to the historical epidemiology of the disease. To this end the study focuses on five cases of probable leprosy identified in human skeletal remains excavated from inhumation burials. Three of the individuals derived from the cemetery of St Michael Le Pole, Golden Lane, Dublin, while single examples were also identified from Ardreigh, Co. Read More

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A palaeopathological analysis of skeletal remains from Bronze Age Mongolia.

Homo 2018 Nov 23;69(6):324-334. Epub 2018 Nov 23.

Anthropology, National Museum of Natural History, Smithsonian Institution, Washington, DC, USA.

Little is known about the lifeways of the people who inhabited the Mongolian steppe during the Bronze Age (c. 4450-2650 BP). Palaeopathological analysis allows us to draw inferences about the lifeways of past people from the indicators of health and lifestyle recorded in human remains. Read More

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November 2018

Outcomes of Vital Pulp Therapy Using Mineral Trioxide Aggregate or Biodentine: A Prospective Randomized Clinical Trial.

J Endod 2018 Nov 3;44(11):1603-1609. Epub 2018 Oct 3.

Department of Conservative Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan.

Introduction: Mineral trioxide aggregate (MTA) has been used in pulp capping of cariously exposed mature permanent teeth with promising results. The search for alternative materials that seal better and set faster than MTA and do not stain is ongoing. Biodentine (Septodont, St Maur-des-Fossés, France) exhibits these advantages but has not been tested yet for a prolonged duration in mature teeth. Read More

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November 2018

Fossil mammals from the Gondolin Dump A ex situ hominin deposits, South Africa.

Authors:
Justin W Adams

PeerJ 2018 6;6:e5393. Epub 2018 Aug 6.

Centre for Human Anatomy Education, Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC, Australia.

The Gondolin palaeokarstic system, located in the UNESCO Fossil Hominids of South Africa World Heritage Site, has been sporadically excavated since the 1970s. Sampling of ex situ dumpsites in 1997 recovered the only two fossil hominin specimens recovered thus far from Gondolin. While one partial mandibular molar (GA 1) remains unattributed, the complete mandibular second molar (GA 2) represents the largest Broom, 1938 tooth identified to date. Read More

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Inverted and horizontal impacted third molars in an Early Modern skull from Wroclaw, Poland: a case report.

Folia Morphol (Warsz) 2019 14;78(1):214-220. Epub 2018 Aug 14.

Department of Conservative Dentistry and Pedodontics, Wroclaw Medical University, Wroclaw, Poland.

Background: An impacted tooth is one of the most commonly occurring dental anomalies, although some types of impaction (i.e. inverted angulation) may be considered rare finding. Read More

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Middle Stone Age human teeth from Magubike rockshelter, Iringa Region, Tanzania.

PLoS One 2018 31;13(7):e0200530. Epub 2018 Jul 31.

Department of Earth Sciences, Natural History Museum, London, United Kingdom.

In 2006, six isolated hominin teeth were excavated from Middle Stone Age (MSA) deposits at the Magubike rockshelter in southern Tanzania. They comprise two central incisors, one lateral incisor, one canine, one third premolar, and one fourth premolar. All are fully developed and come from the maxilla. Read More

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January 2019