Evidence map›Paper›PMID 22996272›Full record

ReviewInternational journal of oral science2012

A post-classical theory of enamel biomineralization… and why we need one.

James P Simmer, Amelia S Richardson, Yuan-Yuan Hu, Charles E Smith, Jan Ching-Chun Hu

Open access · goldAbstract readReview
In one paragraph

Review in International journal of oral science, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
7.4field-weighted citation impact, top 2% 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

66 citing papers in PubMed, 113 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. NovelJournal of dental sciences · 2026
    Article
  6. Review
  7. Challenges of Studying Amelogenesis in Gene-Targeted Mouse Models.International journal of molecular sciences · 2025
    Review
  8. ADAM10 Expression by Ameloblasts Is Essential for Proper Enamel Formation.International journal of molecular sciences · 2024
    Article
  9. Article
  10. Article
  11. Review
  12. Research progress of biomimetic materials in oral medicine.Journal of biological engineering · 2023
    Review
  13. Article
  14. Article
  15. Enamel defects in Acp4Scientific reports · 2022
    Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Review

6 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 2 countries.

James P SimmerDepartment of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MD, USA. jsimmer@umich.edu
Amelia S Richardson
Yuan-Yuan Hu
Charles E Smith
Jan Ching-Chun Hu
University of Michigan–Ann Arbor · USMcGill University · CA

Funding

ENAMEL WITHOUT ENAMELINR01DE011301 · NIDCR · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI HU, JAN C-C · 2003 to 2007
$1.5M
Enamel and EnamelinR56DE011301 · NIDCR · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI HU, JAN CHING CHUN · 2010 to 2010
$367k
PORCINE ENAMEL PROTEINSR29DE011301 · NIDCR · UNIVERSITY OF TEXAS HLTH SCI CTR SAN ANT · PI HU, JAN C-C · 1997 to 2001
$212k
NIDCR NIH HHS DE011301NIDCR NIH HHS DE061854NIDCR NIH HHS R01 DE011301NIDCR NIH HHS R29 DE011301NIDCR NIH HHS R56 DE011301
6 · The paper itself

Abstract

Enamel crystals are unique in shape, orientation and organization. They are hundreds of thousands times longer than they are wide, run parallel to each other, are oriented with respect to the ameloblast membrane at the mineralization front and are organized into rod or interrod enamel. The classical theory of amelogenesis postulates that extracellular matrix proteins shape crystallites by specifically inhibiting ion deposition on the crystal sides, orient them by binding multiple crystallites and establish higher levels of crystal organization. Elements of the classical theory are supported in principle by in vitro studies; however, the classical theory does not explain how enamel forms in vivo. In this review, we describe how amelogenesis is highly integrated with ameloblast cell activities and how the shape, orientation and organization of enamel mineral ribbons are established by a mineralization front apparatus along the secretory surface of the ameloblast cell membrane.

Indexed as

Tooth CalcificationAmeloblastsAmelogenesisBasement MembraneCrystallizationDental EnamelDental Enamel ProteinsHumansDental Enamel Proteins

Identifiers

PMID22996272
PMCPMC3464985
OpenAlexW1993236489

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.