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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 grinding food.

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Related Experiment Video

Updated: May 26, 2026

Roughness Impact of Piezoelectric Dental Scaler on Two Distinct Flowable Composite Filling Materials

Roughness Impact of Piezoelectric Dental Scaler on Two Distinct Flowable Composite Filling Materials

Published on: January 10, 2025

Optimizing tooth form with direct posterior composite restorations.

Ramya Raghu¹, Raghu Srinivasan

¹Department of Conservative Dentistry and Endodontics, Bangalore Institute of Dental Sciences, Bangalore, Karnataka, India.

Journal of Conservative Dentistry : JCD

|December 7, 2011

Summary

This summary is machine-generated.

Achieving tight contacts in posterior composite restorations remains a challenge. This review explores the evolution of techniques and recent advancements for predictable posterior composite contacts.

Keywords:

Ceramic inserts contact forming instruments contact rings direct posterior composite contacts light tips precontoured sectional matrices

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Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation

Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation

Published on: July 21, 2014

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Last Updated: May 26, 2026

Roughness Impact of Piezoelectric Dental Scaler on Two Distinct Flowable Composite Filling Materials

Roughness Impact of Piezoelectric Dental Scaler on Two Distinct Flowable Composite Filling Materials

Published on: January 10, 2025

Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation

Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation

Published on: July 21, 2014

Area of Science:

Dental Materials Science
Operative Dentistry
Biomaterials Engineering

Background:

Composite resins have evolved from aesthetic anterior restorations to universal materials for both anterior and posterior dental applications.
Material science advances have transformed operative dentistry towards a biologic philosophy, with composite resins closely mimicking natural tooth aesthetics.
Significant improvements in posterior composite materials have addressed issues like wear resistance and polymerization shrinkage.

Purpose of the Study:

To review the evolution of techniques and recent developments in achieving predictable contacts with posterior composite restorations.
To address the persistent clinical challenge of establishing tight interproximal contacts in Class II composite restorations.
To provide insights into optimizing restorative protocols for posterior composite applications.

Main Methods:

A Medline search was conducted using keywords related to direct posterior composite contacts.
Relevant articles were identified using search terms such as "contacts and contours of posterior composites."
The reference lists of identified articles were manually reviewed for additional pertinent literature.

Main Results:

Earlier challenges with posterior composites, including wear and shrinkage, have been largely overcome.
Achieving tight interproximal contacts in Class II posterior composite restorations remains a significant clinical challenge.
Recent developments in techniques and materials aim to improve the predictability of contacts in posterior composites.

Conclusions:

The evolution of posterior composite materials and techniques has significantly enhanced their clinical success.
Further advancements are needed to consistently achieve ideal interproximal contacts in Class II composite restorations.
Clinicians must adapt restorative concepts for composite resins, moving beyond traditional metallic restoration principles.