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 Experiment Videos

Tooth crazing associated with threaded pins: a three-dimensional model.

E L Webb1, W F Straka, C L Phillips

  • 1Department of Fixed Prosthodontics, University of North Carolina, School of Dentistry, Chapel Hill.

The Journal of Prosthetic Dentistry
|May 1, 1989
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Cash Transfers may Increase the No-show Rate for Surgical Patients in Low-resource Settings: A Randomized Controlled Trial.

West African journal of medicine·2022
Same author

Early detection and intervention for young children with early developmental disabilities in Western Uganda: a mixed-methods evaluation.

BMC pediatrics·2022
Same author

Association between cervical dysplasia and female genital schistosomiasis diagnosed by genital PCR in Zambian women.

BMC infectious diseases·2021
Same author

Beyond the barrier: Female Genital Schistosomiasis as a potential risk factor for HIV-1 acquisition.

Acta tropica·2020
Same author

Completion of isoniazid preventive therapy among human immunodeficiency virus positive adults in urban Malawi.

The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease·2018
Same author

Is birth weight associated with blood pressure among African children and adolescents? A systematic review.

Journal of developmental origins of health and disease·2018
Same journal

Effects of prosthetic screw modifications and tightening conditions on mechanical outcomes in screw-retained implant restorations: A systematic review and meta-analysis of in vitro studies.

The Journal of prosthetic dentistry·2026
Same journal

Influence of silane-containing universal adhesives and separate silanization on lithium disilicate bond strength.

The Journal of prosthetic dentistry·2026
Same journal

Clinical, radiographic, and esthetic outcomes of the socket shield technique versus conventional postextraction implant placement: A systematic review.

The Journal of prosthetic dentistry·2026
Same journal

Response to Letter to the Editor regarding, "Dimensional accuracy and clinical adaptation of monolithic zirconia crowns…" and "Effect of finish line designs on the dimensional accuracy of monolithic zirconia crowns".

The Journal of prosthetic dentistry·2026
Same journal

Risk factors in peri-implantitis: A narrative review.

The Journal of prosthetic dentistry·2026
Same journal

Vat photopolymerization-printed zirconia veneered with porcelain: Mechanical properties, fatigue properties, and fractographic analysis.

The Journal of prosthetic dentistry·2026
See all related articles

Larger self-threading retentive pins cause more extensive cracks in teeth, increasing the risk of pulp chamber communication. This study observed cracking patterns associated with pin placement.

Area of Science:

  • Dental materials science
  • Biomaterials engineering
  • Tooth restoration

Background:

  • Self-threading retentive pins are used in dental restorations.
  • Understanding potential tooth damage from pin placement is crucial for clinical success.
  • Previous research has not fully elucidated the three-dimensional cracking patterns.

Purpose of the Study:

  • To develop and utilize a model for observing 3D cracking patterns.
  • To investigate the relationship between self-threading pin size and crack propagation.
  • To assess the frequency of crack communication with the pulp chamber based on pin size.

Main Methods:

  • A 3D observation model was developed using extracted posterior teeth.
  • Four sizes of self-threading pins were placed and subsequently removed.

Related Experiment Videos

  • Dye penetration, demineralization, dehydration, and methyl salicylate clearing techniques were employed to visualize cracks.

    • Main Results:

    • Extensive cracking patterns were observed in the tooth samples.
    • Larger pin sizes resulted in more widespread and severe cracks.
    • Increased frequency of crack communication with the pulp chamber was noted with larger pins.

    Conclusions:

    • The size of self-threading retentive pins significantly influences the extent of tooth cracking.
    • Larger pins pose a greater risk of creating cracks that reach the pulp chamber.
    • Clinical selection of pin size should consider the potential for iatrogenic damage.