Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Microcracking in Concrete01:20

Microcracking in Concrete

Microcracking in concrete refers to the tiny cracks that can form within the material even before any external load is applied. These microcracks typically occur at the interface between the coarse aggregate and the hydrated cement paste, often as a result of differential volume changes prompted by variations in stress-strain behavior, as well as thermal and moisture movement. Initially, these microcracks remain stable and do not grow substantially until the concrete is stressed to about 30...
Stress-Strain Diagram - Brittle Materials01:24

Stress-Strain Diagram - Brittle Materials

Brittle materials, including glass, cast iron, and stone, exhibit unique characteristics. They fracture without considerable change in their elongation rate, indicating that their breaking and ultimate strength are equivalent. Such materials also show lower strain levels at the point of rupture. The failure in brittle materials predominantly results from normal stresses, as evidenced by the rupture created along a surface perpendicular to the applied load. These materials do not display...
Fractures: Bone Repair01:27

Fractures: Bone Repair

Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the procedure...
Types of Non-structural Cracks in Concrete01:28

Types of Non-structural Cracks in Concrete

Non-structural cracks are primarily of three types: plastic, early-age thermal, and drying shrinkage cracks. Plastic cracks are further classified into plastic shrinkage cracks and plastic settlement cracks.
Plastic shrinkage cracks typically form within hours after the concrete is poured. The concrete's surface dries faster than the bottom, creating tensile stress that the still-plastic concrete cannot withstand, leading to diagonal or randomly patterned cracks on the concrete surface.
Plastic...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Energy-Consistent Neural Networks with Fenchel-Young Loss for Physics-Guided Energy Prediction in Sheet Metal Forming Under Small-Data Conditions.

Materials (Basel, Switzerland)·2026
Same author

Effect of glucagon-like peptide-1 receptor agonist on paclitaxel induced neurotoxicity in dorsal root ganglion neuronal cells <i>in vitro</i>.

The Korean journal of pain·2025
Same author

Effect of Airway Devices on Emergence Delirium in Pediatric Strabismus Surgery.

Medical science monitor : international medical journal of experimental and clinical research·2025
Same author

Edge chipping patterns in posterior teeth of hominins and apes.

Journal of the mechanical behavior of biomedical materials·2024
Same author

Comparison between conventional-dose and high-dose rocuronium use in general anesthesia for Cesarean section.

International journal of medical sciences·2024
Same author

Sedation with propofol and isoflurane differs in terms of microcirculatory parameters: A randomized animal study using dorsal skinfold chamber mouse model.

Microvascular research·2024

Related Experiment Video

Updated: Jun 25, 2026

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
07:42

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material

Published on: December 20, 2024

A simple model for enamel fracture from margin cracks.

Herzl Chai1, James J-W Lee, Jae-Young Kwon

  • 1School of Mechanical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, Israel.

Acta Biomaterialia
|March 10, 2009
PubMed
Summary

Human molar teeth fracture under biting forces, initiating margin cracks in the enamel. Thicker enamel and larger cusps enhance resistance to this type of dental failure.

More Related Videos

Microhardness Measurements on Tooth and Alveolar Bone in Rodent Oral Disease Models
06:16

Microhardness Measurements on Tooth and Alveolar Bone in Rodent Oral Disease Models

Published on: April 26, 2024

Micro-dissection of Enamel Organ from Mandibular Incisor of Rats Exposed to Environmental Toxicants
08:12

Micro-dissection of Enamel Organ from Mandibular Incisor of Rats Exposed to Environmental Toxicants

Published on: March 29, 2018

Related Experiment Videos

Last Updated: Jun 25, 2026

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
07:42

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material

Published on: December 20, 2024

Microhardness Measurements on Tooth and Alveolar Bone in Rodent Oral Disease Models
06:16

Microhardness Measurements on Tooth and Alveolar Bone in Rodent Oral Disease Models

Published on: April 26, 2024

Micro-dissection of Enamel Organ from Mandibular Incisor of Rats Exposed to Environmental Toxicants
08:12

Micro-dissection of Enamel Organ from Mandibular Incisor of Rats Exposed to Environmental Toxicants

Published on: March 29, 2018

Area of Science:

  • Biomechanics
  • Materials Science
  • Dental Research

Background:

  • Tooth structure and failure mechanisms are critical in understanding dental health and function.
  • Margin cracking represents a specific mode of failure in human molar teeth.

Purpose of the Study:

  • To investigate the in situ fracture mechanics of human molar teeth, focusing on margin cracking.
  • To analyze crack propagation and identify factors influencing tooth resistance to fracture.

Main Methods:

  • Performing in situ fracture tests on extracted human molar teeth using a rod indenter simulating food modulus.
  • Real-time observation of crack initiation and growth from cervical margins using video microscopy.
  • Applying fracture mechanics analysis to determine critical load relationships.

Main Results:

  • Margin cracking initiates above a specific load threshold and propagates longitudinally within the enamel.
  • Significant loads are required for enamel-dentin delamination, indicating tooth resilience.
  • Enamel thickness and cuspal radius positively correlate with resistance to margin cracking.

Conclusions:

  • Tooth resistance to margin cracking is influenced by enamel thickness and cuspal geometry.
  • Findings have implications for restorative dentistry and understanding tooth evolution.
  • The study provides insights into the biomechanical behavior of human teeth under occlusal loading.