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Related Concept Videos

Review and Preview01:10

Review and Preview

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In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...
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Review and Preview01:13

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Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...
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Random and Systematic Errors01:20

Random and Systematic Errors

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Scientists always try their best to record measurements with the utmost accuracy and precision. However, sometimes errors do occur. These errors can be random or systematic. Random errors are observed due to the inconsistency or fluctuation in the measurement process, or variations in the quantity itself that is being measured. Such errors fluctuate from being greater than or less than the true value in repeated measurements. Consider a scientist measuring the length of an earthworm using a...
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Systematic Sampling Method01:17

Systematic Sampling Method

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Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. Data are the result of sampling from a population. The sampling method ensures that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
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Propagation of Uncertainty from Systematic Error01:10

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The atomic mass of an element varies due to the relative ratio of its isotopes. A sample's relative proportion of oxygen isotopes influences its average atomic mass. For instance, if we were to measure the atomic mass of oxygen from a sample, the mass would be a weighted average of the isotopic masses of oxygen in that sample. Since a single sample is not likely to perfectly reflect the true atomic mass of oxygen for all the molecules of oxygen on Earth, the mass we obtain from this...
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Systematic Error: Methodological and Sampling Errors01:15

Systematic Error: Methodological and Sampling Errors

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In the case of systematic errors, the sources can be identified, and the errors can be subsequently minimized by addressing these sources. According to the source, systematic errors can be divided into sampling, instrumental, methodological, and personal errors.
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Related Experiment Video

Updated: Feb 8, 2026

Evaluating the Effects of Different Polishing Methods on Color Stability of Dental Restorations in Pediatric Dentistry
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Published on: June 6, 2025

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Jaw Tracking System in Digital Dentistry: A Systematic Review.

Giuseppe Tafuri, Manlio Santilli, Gianmaria D'Addazio

    The International Journal of Prosthodontics
    |February 6, 2026
    PubMed
    Summary

    Digital jaw motion tracking (JMT) systems offer improved accuracy in assessing mandibular movements over traditional methods. While promising for dental practice, further research is needed to standardize protocols and ensure clinical applicability.

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    Area of Science:

    • Dentistry
    • Biomedical Engineering
    • Digital Health

    Background:

    • Occlusal assessment is crucial in dentistry, traditionally relying on mechanical articulators and manual techniques.
    • Limitations of traditional methods include potential inaccuracies and time inefficiencies.
    • Advancements in digital technology have led to the development of jaw motion tracking (JMT) systems.

    Purpose of the Study:

    • To systematically review the accuracy, reliability, and clinical utility of JMT systems.
    • To compare JMT systems against traditional occlusal assessment methods.
    • To provide an overview of evidence supporting JMT integration in dental practice.

    Main Methods:

    • Systematic review following PRISMA guidelines (PROSPERO Registration: CRD42024567619).
    • Comprehensive literature search of PubMed, Scopus, Web of Science, and Cochrane Library (January 2005-December 2025).
    • Inclusion of studies assessing JMT device performance in clinical, experimental, or in vitro settings, compared to conventional methods. QUADAS-2 tool used for quality assessment.

    Main Results:

    • Twenty studies were included, encompassing case studies to clinical trials.
    • Optical tracking JMT systems showed superior precision and accuracy in recording mandibular movements compared to traditional methods.
    • JMT systems demonstrated potential for reduced chair time and improved prosthetic outcomes, though risk of bias was noted due to small sample sizes and lack of long-term data.

    Conclusions:

    • Digital JMT technologies enhance occlusal assessment and treatment planning, especially in prosthodontics and TMJ diagnostics.
    • Further research is required to standardize protocols, validate systems across diverse populations, and confirm clinical applicability.
    • Methodological inconsistencies necessitate more rigorously designed studies to fully realize the benefits of JMT.