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Related Concept Videos

Tooth Anatomy01:21

Tooth Anatomy

2.8K
The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
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Related Experiment Video

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A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible
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Analysis of Modification Zones in Mandibular Complete Denture Models Designed with the Bio-Functional Prosthetic

Lei Yan1, Yang Liu1, Yu-Yu Yan1

  • 1Department of Stomatology, The Ninth Medical Center of PLA General Hospital, Beijing, 100101, People's Republic of China.

Therapeutics and Clinical Risk Management
|October 6, 2025
PubMed
Summary

This study shows the bio-functional prosthetic system (BPS) improves mandibular complete denture models by accurately representing mucosal movement. Key areas like the mylohyoid region and submandibular gland area showed significant, beneficial modifications.

Keywords:
bio-functional prosthetic systemcomplete denturedigitaledentulous jawsimpression

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Area of Science:

  • Dentistry
  • Prosthodontics
  • Biomedical Engineering

Background:

  • Complete edentulism requires accurate mandibular restoration for function and comfort.
  • The bio-functional prosthetic system (BPS) is a digital workflow for creating complete dentures.
  • Evaluating modifications in BPS-designed mandibular models is crucial for understanding its clinical efficacy.

Purpose of the Study:

  • To analyze modifications in the final mandibular complete denture model created with the bio-functional prosthetic system (BPS) compared to the initial model.
  • To quantify the extent and location of these changes using digital scanning technology.
  • To assess the impact of BPS on the accuracy of representing anatomical structures relevant to denture function.

Main Methods:

  • Digital scans of initial and final gypsum models from 20 edentulous mandibles were acquired.
  • Models were aligned and registered using Geomagic Warp software for comparative analysis.
  • Modification zones and their statistical significance were evaluated.

Main Results:

  • Significant modifications (p < 0.05) were found in the posterior mylohyoid fossa, submandibular gland region, and labial vestibule.
  • Minimal differences (p > 0.05) were noted in the posterior molar pad area.
  • The final BPS model showed significant overall deviation from the initial model, with greatest changes in the posterior mylohyoid fossa.

Conclusions:

  • The final BPS mandibular complete denture model demonstrates enhanced accuracy in depicting mucosal movement, shape, and positioning under occlusal load.
  • Specific anatomical regions, including the posterior mylohyoid fossa, submandibular gland region, and labial vestibule, show improved delineation of mucosal boundaries.
  • These modifications contribute to a more precise functional representation in the final denture design, potentially improving patient outcomes.