Gingival cyst of the adult in a pediatric patient: Report of a case

Although the gingival cyst of the adult is considered rare in children, it can occur. The GCA can cause necrosis of the alveolar bone if untreated and should be considered in the differential diagnosis of raised gingival lesions.Although the gingival cyst of the adult is considered rare in children, it can occur. The GCA can cause necrosis of the alveolar bone if untreated and should be considered in the differential diagnosis of raised gingival lesions.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/154395/1/ccr32646.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154395/2/ccr32646_am.pd

Caregivers\u27 Comprehension of the Terms Decay and Cavities: A Qualitative Analysis

Purpose: Tooth decay and cavities are the most common oral health consequences for young children that may result from inadequate oral health literacy (OHL) or understanding of their caregivers. The purpose of this study was to describe the understanding of terms related to decay and cavities among caregivers of preschool-aged children. Methods: English-speaking caregivers with children aged(OH-LIP). Responses were recorded, transcribed, coded, and assigned to domains and categories. Results: Responses from 111 participants were included in the analysis. About one fifth of the participants (19.8%, n=22) indicated that they did not know what decay was or provided an incorrect response. The majority (71.2%, n=79) made the association that decay was something bad that happens to the teeth. However only a minority of the participants (9%, n=10) correctly identified decay as destruction of the tooth surface because of bacterial action. When asked to define the word cavities, more than half (68.5%) indicated that cavities were something harmful to teeth, while only about one quarter (27%, n=30) correctly identified cavities as resulting from the decay process. Conclusion: Knowledge disparities related to the terms decay and cavities among caregivers suggest that more education is needed regarding the tooth decay process and factors causing dental caries to ensure timely preventive services are received. Gaps in oral health literacy should be addressed by health care professionals. Dental hygienists are in an ideal position to educate caregivers as well as non-dental health care professionals who provide services to caregivers and children

Relationship of infant feeding mode, tongue thrusting, and lisping

Tongue thrusting has lately come under suspicion as a causative factor in orthodontic and articulation problems. A majority of investigators have agreed that the following symptoms indicate the presence of tongue thrusting: during the initiation of the swallowing act, there is contraction of the circumoral muscles, no contact of the molars, and protrusion of the tongue between the incisors. Although the etiology of tongue-thrusting behavior is uncertain, claims have been made that the way in which an infant was fed may have modified patterns of tongue activity to produce tongue thrusting

To see or not to see: investigating detectability of Ganges River dolphins using a combined visual-acoustic survey

Detection of animals during visual surveys is rarely perfect or constant, and failure to account for imperfect detectability affects the accuracy of abundance estimates. Freshwater cetaceans are among the most threatened group of mammals, and visual surveys are a commonly employed method for estimating population size despite concerns over imperfect and unquantified detectability. We used a combined visual-acoustic survey to estimate detectability of Ganges River dolphins (Platanista gangetica gangetica) in four waterways of southern Bangladesh. The combined visual-acoustic survey resulted in consistently higher detectability than a single observer-team visual survey, thereby improving power to detect trends. Visual detectability was particularly low for dolphins close to meanders where these habitat features temporarily block the view of the preceding river surface. This systematic bias in detectability during visual-only surveys may lead researchers to underestimate the importance of heavily meandering river reaches. Although the benefits of acoustic surveys are increasingly recognised for marine cetaceans, they have not been widely used for monitoring abundance of freshwater cetaceans due to perceived costs and technical skill requirements. We show that acoustic surveys are in fact a relatively cost-effective approach for surveying freshwater cetaceans, once it is acknowledged that methods that do not account for imperfect detectability are of limited value for monitoring

In-situ estimation of ice crystal properties at the South Pole using LED calibration data from the IceCube Neutrino Observatory

The IceCube Neutrino Observatory instruments about 1 km3 of deep, glacial ice at the geographic South Pole using 5160 photomultipliers to detect Cherenkov light emitted by charged relativistic particles. A unexpected light propagation effect observed by the experiment is an anisotropic attenuation, which is aligned with the local flow direction of the ice. Birefringent light propagation has been examined as a possible explanation for this effect. The predictions of a first-principles birefringence model developed for this purpose, in particular curved light trajectories resulting from asymmetric diffusion, provide a qualitatively good match to the main features of the data. This in turn allows us to deduce ice crystal properties. Since the wavelength of the detected light is short compared to the crystal size, these crystal properties do not only include the crystal orientation fabric, but also the average crystal size and shape, as a function of depth. By adding small empirical corrections to this first-principles model, a quantitatively accurate description of the optical properties of the IceCube glacial ice is obtained. In this paper, we present the experimental signature of ice optical anisotropy observed in IceCube LED calibration data, the theory and parametrization of the birefringence effect, the fitting procedures of these parameterizations to experimental data as well as the inferred crystal properties.</p

Multi-messenger searches via IceCube’s high-energy neutrinos and gravitational-wave detections of LIGO/Virgo

We summarize initial results for high-energy neutrino counterpart searches coinciding with gravitational-wave events in LIGO/Virgo\u27s GWTC-2 catalog using IceCube\u27s neutrino triggers. We did not find any statistically significant high-energy neutrino counterpart and derived upper limits on the time-integrated neutrino emission on Earth as well as the isotropic equivalent energy emitted in high-energy neutrinos for each event