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

Cavity Drainage and Flashings in Masonry walls01:20

Cavity Drainage and Flashings in Masonry walls

427
Typically, a cavity wall consists of two wythes separated by a gap of at least 2 inches, which may contain insulation while still maintaining a minimum clear space of 1 inch to facilitate adequate drainage. Advanced methods like the insertion of a continuous drainage mat can further reduce this space while ensuring effective moisture expulsion.
Weep holes, strategically placed at the base of the cavity, are critical for draining accumulated water. These openings are created by leaving head...
427
Long-term Depression01:05

Long-term Depression

33.2K
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
33.2K
Long-term Depression01:03

Long-term Depression

3.1K
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over...
3.1K
Directional Terms01:14

Directional Terms

16.0K
Directional terms are essential for describing the relative locations of different body structures. For instance, an anatomist might describe one band of tissue as "inferior to" another, or a physician might describe a tumor as "superficial to" a deeper body structure. These terms often use comparative terms in pairs to trace out the relative locations of one body part to another or descriptions of body tissues like the deeper ones from superficially present with reference to...
16.0K
Long-term Potentiation01:25

Long-term Potentiation

3.4K
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when...
3.4K
Long-term Potentiation01:35

Long-term Potentiation

58.4K
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
58.4K

You might also read

Related Articles

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

Sort by
Same author

Advancing a Global Oral Health Research Agenda.

Journal of dental research·2026
Same authorSame journal

Ectopic Maxillary Third Molar with a Large Odontogenic Keratocyst in Roof of Maxillary Sinus - A Case Report.

Indian journal of dental research : official publication of Indian Society for Dental Research·2026
Same author

Oral Health in Non-communicable Diseases (NCD) Agenda: From the Margins to the Mainstream.

Indian journal of dental research : official publication of Indian Society for Dental Research·2026
Same author

International Association for Dental, Oral, and Craniofacial Research - Asia Pacific Regional (IADR-APR) Conference September 18-21, 2025 New Delhi, India.

Indian journal of dental research : official publication of Indian Society for Dental Research·2026
Same author

Biomimetic Enamel Regeneration: Implications for Indian Dental Research and Care Delivery.

Indian journal of dental research : official publication of Indian Society for Dental Research·2026
Same author

Lab-on-Chip Platforms: A Paradigm Shift in Maxillofacial Surgical Science.

Annals of maxillofacial surgery·2026

Related Experiment Video

Updated: Jan 21, 2026

Author Spotlight: Advancements in Retroperitoneal Approach for Necrotizing Pancreatitis
03:42

Author Spotlight: Advancements in Retroperitoneal Approach for Necrotizing Pancreatitis

Published on: March 15, 2024

1.1K

Epiphora drainage by DCR - Long-term results.

S M Balaji1, Preetha Balaji1

  • 1Department of Oral and Maxillofacial Surgery, Balaji Dental and Craniofacial Hospital, Chennai, Tamil Nadu, India.

Indian Journal of Dental Research : Official Publication of Indian Society for Dental Research
|August 10, 2019
PubMed
Summary

Maxillofacial trauma and orthognathic surgery can cause nasolacrimal duct obstruction (NLDO), requiring dacryocystorhinostomy (DCR). This study details DCR cases in a maxillofacial center, highlighting fracture-related NLDO as the primary cause.

Keywords:
Dacryocystorhinostomyepiphoranasal traumanasolacrimal duct obstructiontearing of the eyes

More Related Videos

Manual Drainage of the Zebrafish Embryonic Brain Ventricles
06:17

Manual Drainage of the Zebrafish Embryonic Brain Ventricles

Published on: December 16, 2012

10.4K
Parameterizing V-notch Weir Equations for Flow Monitoring in a Drainage Control Structure
07:15

Parameterizing V-notch Weir Equations for Flow Monitoring in a Drainage Control Structure

Published on: April 25, 2025

989

Related Experiment Videos

Last Updated: Jan 21, 2026

Author Spotlight: Advancements in Retroperitoneal Approach for Necrotizing Pancreatitis
03:42

Author Spotlight: Advancements in Retroperitoneal Approach for Necrotizing Pancreatitis

Published on: March 15, 2024

1.1K
Manual Drainage of the Zebrafish Embryonic Brain Ventricles
06:17

Manual Drainage of the Zebrafish Embryonic Brain Ventricles

Published on: December 16, 2012

10.4K
Parameterizing V-notch Weir Equations for Flow Monitoring in a Drainage Control Structure
07:15

Parameterizing V-notch Weir Equations for Flow Monitoring in a Drainage Control Structure

Published on: April 25, 2025

989

Area of Science:

  • Maxillofacial Surgery
  • Ophthalmology
  • Anatomy

Background:

  • Nasolacrimal duct obstruction (NLDO) is a condition requiring surgical intervention through dacryocystorhinostomy (DCR).
  • In maxillofacial surgery, NLDO can occur secondary to facial trauma or orthognathic procedures.
  • Limited literature exists on DCR from this specific geographical region.

Purpose of the Study:

  • To present the experience of a single maxillofacial center regarding dacryocystorhinostomy (DCR).
  • To analyze the incidence, causes, and outcomes of nasolacrimal duct obstruction (NLDO) in patients undergoing DCR.
  • To contribute regional data to the existing body of knowledge on DCR.

Main Methods:

  • A retrospective, non-interventional record audit of patients undergoing DCR between January 1, 2008, and December 31, 2017.
  • Inclusion criteria focused on patients with epiphora and diagnosed lacrimal apparatus damage requiring DCR.
  • Data collected included demographics, treatment phase, bone involvement, age, complications, duration of epiphora, and follow-up duration. Statistical analysis used SPSS version 16.

Main Results:

  • Eighty-three patients met the study criteria, with a higher prevalence in males (67.47%).
  • Fractures were the predominant cause of NLDO (81.93%), followed by orthognathic surgery cases.
  • Le Fort II and III fractures were most common (59%), with an average delay of 9.3 months before treatment and an average follow-up of 31 months.

Conclusions:

  • Surgical procedures and fractures involving nasal bones pose a significant risk to the nasolacrimal duct system.
  • This study describes the pattern of DCR need and NLDO occurrence in the region.
  • Findings underscore the importance of considering anatomical variations and meticulous surgical planning in DCR procedures.