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Tooth Anatomy

Tooth Anatomy

The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...

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Updated: Nov 11, 2025

Efficient SARS-CoV-2 Quantitative Reverse Transcriptase PCR Saliva Diagnostic Strategy utilizing Open-Source Pipetting Robots

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Published on: February 11, 2022

SARS-CoV-2 Positivity in Asymptomatic-Screened Dental Patients.

D I Conway^1,2, S Culshaw¹, M Edwards³

¹School of Medicine, Dentistry, Nursing, University of Glasgow, Glasgow, UK.

Journal of Dental Research

|March 29, 2021

Summary

Dental patients screened for COVID-19 (coronavirus disease 2019) showed a low SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) positivity rate, reflecting community prevalence. These findings highlight dental settings as valuable for public health surveillance.

Keywords:

COVID-19 SARS virus dentistry epidemiology outpatients public health

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Published on: November 7, 2020

Area of Science:

Public Health
Infectious Diseases
Epidemiology

Background:

Community surveillance is crucial for managing coronavirus disease 2019 (COVID-19).
Asymptomatic carriage of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) contributes to transmission but is poorly understood.
Dental services faced disruptions and implemented enhanced precautions, including symptom screening and personal protective equipment (PPE).

Purpose of the Study:

To investigate SARS-CoV-2 infection rates in asymptomatic dental patients.
To inform community surveillance strategies.
To assess the risk of transmission in dental settings.

Main Methods:

A cross-sectional study involving 4,032 asymptomatic patients aged over 5 years across 31 dental centers in Scotland.
Participants underwent combined oropharyngeal and nasal swabbing.
Data collected included sociodemographics and symptom history; samples were processed by Lighthouse Lab.

Main Results:

A total of 4,032 patients were tested between August 3 and October 31, 2020.
Twenty-two patients (0.5%) tested positive for SARS-CoV-2.
The positivity rate increased over the study period, aligning with rising community prevalence.

Conclusions:

The SARS-CoV-2 positivity rate in asymptomatic dental patients mirrors community prevalence.
Dental settings can serve as effective sites for public health surveillance.
Ongoing vigilance with infection prevention and control measures, including PPE, is essential, especially during periods of increasing community transmission.