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Related Concept Videos

Teeth01:15

Teeth

275
The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
275

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Correction: Bignotti et al. Class II Malocclusion Correction Using "Distalizing Bar Appliances" and Clear Aligners: A Case Series and Clinical Technique. <i>Dent. J.</i> 2026, <i>14</i>, 334.

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Updated: May 20, 2025

Author Spotlight: 3D Movement Assessment of Maxillary Posterior Teeth in Clear Aligner Treatment
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Published on: February 23, 2024

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Correlation Between Angular Position and Pathological Changes in Impacted Lower Third Molars: A Systematic Review and

Shaniko Kaleci1, Pierantonio Bellini1, Giacomo Setti1

  • 1Department of Surgery, Medicine, Dentistry and Morphological Sciences with Transplant Surgery, Oncology and Regenerative Medicine Relevance (CHIMOMO), University of Modena and Reggio Emilia, 41125 Modena, Italy.

Dentistry Journal
|March 26, 2025
PubMed
Summary
This summary is machine-generated.

The angular position of impacted lower third molars affects pathology risk. Horizontal impactions show the highest risk of pathological changes, while distoangular impactions have the lowest complication rates.

Keywords:
alveolar bone lossimpacted third molarsmesioangular positionmeta-analysispathological changes

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Dental Pathology
  • Evidence-Based Dentistry

Background:

  • Impacted lower third molars pose surgical challenges and risks.
  • Prophylactic removal is debated, influenced by associated pathologies.
  • Understanding positional risks is crucial for treatment decisions.

Purpose of the Study:

  • To systematically review the correlation between impacted lower third molar angulation and pathology.
  • To analyze associations with periodontal defects, bone loss, and cystic changes.
  • To identify specific angular positions linked to higher pathological risks.

Main Methods:

  • Systematic review following PRISMA guidelines (2000-2024).
  • Inclusion of studies on lower third molar angulation and pathology.
  • Risk of bias assessment using Newcastle-Ottawa Scale (NOS).
  • Proportional meta-analysis of pathological changes by angular position.

Main Results:

  • Six studies (2222 patients, 3276 molars) were included.
  • Mesioangular and vertical positions were most common.
  • Horizontal impactions showed the highest pathology correlation (41.1%).
  • Distoangular impactions had the lowest prevalence of complications.

Conclusions:

  • Lower third molar angulation significantly impacts pathological risk.
  • Horizontal impactions present the greatest risk; distoangular the least.
  • Standardized diagnostics and reporting are needed for improved clinical decisions.