Evidence map›Paper›PMID 29181723›Full record

ArticleAnnals of biomedical engineering2018

Electrical Conductivity Method to Determine Sexual Dimorphisms in Human Temporomandibular Disc Fixed Charge Density.

Gregory J Wright, Matthew C Coombs, Yongren Wu, Brooke J Damon, Thierry H Bacro, Michael J Kern, Xiaojing Chen, Hai Yao

Open access · greenAbstract read
In one paragraph

Article in Annals of biomedical engineering, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Temporomandibular Joint Condyle-Disc Morphometric Sexual Dimorphisms Independent of Skull Scaling.Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons · 2019
    Article
  9. Effect of Measurement Technique on TMJ Mandibular Condyle and Articular Disc Morphometry: CBCT, MRI, and Physical Measurements.Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons · 2019
    Article
  10. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 2 countries.

Gregory J WrightClemson-MUSC Bioengineering Program, Department of Bioengineering, Clemson University, 173 Ashley Avenue MSC 508, Charleston, SC, 29425, USA.
Matthew C CoombsClemson-MUSC Bioengineering Program, Department of Bioengineering, Clemson University, 173 Ashley Avenue MSC 508, Charleston, SC, 29425, USA.
Yongren WuClemson-MUSC Bioengineering Program, Department of Bioengineering, Clemson University, 173 Ashley Avenue MSC 508, Charleston, SC, 29425, USA.
Brooke J DamonClemson-MUSC Bioengineering Program, Department of Bioengineering, Clemson University, 173 Ashley Avenue MSC 508, Charleston, SC, 29425, USA.
Thierry H BacroCenter for Anatomical Studies and Education, MUSC, Charleston, SC, USA.
Michael J KernDepartment of Oral Health Sciences, Medical University of South Carolina (MUSC), Charleston, SC, USA.
Xiaojing ChenClemson-MUSC Bioengineering Program, Department of Bioengineering, Clemson University, 173 Ashley Avenue MSC 508, Charleston, SC, 29425, USA. xiaojing_chen@xykqyy.net.
Hai YaoClemson-MUSC Bioengineering Program, Department of Bioengineering, Clemson University, 173 Ashley Avenue MSC 508, Charleston, SC, 29425, USA. haiyao@clemson.edu.
Clemson University · USMedical University of South Carolina · USCentral South University · CNUniversity of Charleston · US

Funding

T-COHR: Training in Craniofacial and Oral Health ResearchT32DE017551 · NIDCR · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI YAO, HAI · 2006 to 2025
$10.3M
Integrating craniofacial morphology, oral function, temporomandibular biomechanics and mechanobiology to determine sex-specific TMJ pathophysiology in humansR01DE021134 · NIDCR · CLEMSON UNIVERSITY · PI YAO, HAI · 2012 to 2025
$4.7M
Biophysical Modeling of Fluid and Solute Transport in the TMJ DiscR03DE018741 · NIDCR · CLEMSON UNIVERSITY · PI YAO, HAI · 2009 to 2010
$223k
Biomechanical Characterization and Modeling of Human TMJ DiscF31DE023482 · NIDCR · CLEMSON UNIVERSITY · PI WRIGHT, GREGORY JOHN · 2013 to 2014
$87k
National Institutes of Health DE017551National Institutes of Health DE018741National Institutes of Health DE021134National Institutes of Health DE023482NIDCR NIH HHS F31 DE023482NIDCR NIH HHS R01 DE021134NIDCR NIH HHS R03 DE018741NIDCR NIH HHS T32 DE017551
6 · The paper itself

Abstract

To investigate potential mechanisms associated with the increased prevalence of temporomandibular joint (TMJ) disorders among women, the study objective was to determine sex-dependent and region-dependent differences in fixed charge density (FCD) using an electrical conductivity method. Seventeen TMJ discs were harvested from nine males (77 ± 4 years) and eight females (86 ± 4 years). Specimens were prepared from the anterior band, posterior band, intermediate zone, medial disc and lateral disc. FCD was determined using an electrical conductivity method, assessing differences among disc regions and between sexes. Statistical modeling showed significant effects for donor sex (p = 0.002), with cross-region FCD for male discs 0.051 ± 0.018 milliequivalent moles per gram (mEq/g) wet tissue and 0.043 ± 0.020 mEq/g wet tissue for female discs. FCD was significantly higher for male discs compared to female discs in the posterior band, with FCD 0.063 ± 0.015 mEq/g wet tissue for male discs and 0.032 ± 0.020 mEq/g wet tissue for female discs (p = 0.050). These results indicate FCD contributes approximately 20% towards TMJ disc compressive modulus, through osmotic swelling pressure regulation. Additionally, FCD regulates critical extracellular ionic/osmotic and nutrient environments. Sexual dimorphisms in TMJ disc FCD, and resulting differences in extracellular ionic/osmotic and nutrient environments, could result in altered mechano-electro-chemical environments between males and females and requires further study.

Indexed as

Electric ConductivitySex CharacteristicsAgedAged, 80 and overFemaleHumansMaleTemporomandibular Joint DiscExtracellular matrixGlycosaminoglycan contentMechanobiologyPorosityTemporomandibular joint (TMJ)

Identifiers

PMID29181723
PMCPMC5952609
OpenAlexW2770425299

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.