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Related Concept Videos

Tooth Anatomy01:21

Tooth Anatomy

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 grinding food.
Oral Cavity01:11

Oral Cavity

The oral cavity, or the mouth, is a complex structure in humans that plays a vital role in our day-to-day lives. Its role is not only in chewing and swallowing food; it also plays a role in speech and facial expressions.
Teeth: The teeth are the hardest structures in our bodies. Humans have two sets of teeth throughout their lifetime: deciduous (baby) teeth and permanent teeth. Each tooth consists of several parts: the crown (visible part), the root (embedded in the jaw), enamel (hard outer...
Cranial Bones: Lateral View01:27

Cranial Bones: Lateral View

The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
Bone Markings01:26

Bone Markings

Bones have various surface features that help form joints and attach to other soft tissues. Depending on the function, bone markings are categorized into articulating projections, processes for attachment, depressions, and openings.
Articulating Projections
Articulating projections are found where two bones meet to form a joint. These structures are usually found at the ends of bones. The largest articulation is a rounded projection called the head, supported by a narrow neck at the ends of...
Structural Joints: Cartilaginous Joints01:17

Structural Joints: Cartilaginous Joints

As the name indicates, at a cartilaginous joint, the adjacent bones are united by cartilage, a tough but flexible type of connective tissue. Unlike synovial joints, these types of joints lack a joint cavity and involve bones joined together by either hyaline cartilage or fibrocartilage.
There are two types of cartilaginous joints:
Synchondrosis
A synchondrosis ("joined by cartilage") is a cartilaginous joint where bones are connected by hyaline cartilage. Synchondrosis may be temporary or...
Structural Joints: Fibrous Joints01:03

Structural Joints: Fibrous Joints

Fibrous joints are a type of joint where the bones are connected by fibrous connective tissue. These joints provide stability and minimal to no movement between the articulating bones. There are three types of fibrous joints.
Suture
All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...

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[Dissertations 25 years after date 25. Dentures: a question of grinning and bearing it].

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Dynamic Navigation in Endodontics: Guided Access Cavity Preparation by Means of a Miniaturized Navigation System
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[Neutral zone. An anatomic space which is often neglected while fabricating removable complete dentures].

M A J van Waas1

  • 1Uit de afdeling Orale Functieleer van het Academisch Centrum Tandheelkunde Amsterdam. r.v.waas@acta.nl

Nederlands Tijdschrift Voor Tandheelkunde
|January 13, 2012
PubMed
Summary
This summary is machine-generated.

Proper denture design requires considering the entire occlusal system, including artificial tooth placement within the mandibular neutral zone. Maxillary teeth and denture bases also support facial structures, preventing an unnatural appearance.

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Last Updated: May 25, 2026

Dynamic Navigation in Endodontics: Guided Access Cavity Preparation by Means of a Miniaturized Navigation System
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Published on: May 5, 2022

Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
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Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla

Published on: October 18, 2021

Area of Science:

  • Dentistry
  • Prosthodontics
  • Biomechanical Engineering

Background:

  • Complete denture design involves more than just the occlusal concept.
  • Artificial tooth positioning is a critical component of the overall occlusal system.
  • The placement of artificial teeth directly interacts with oral and facial structures.

Purpose of the Study:

  • To emphasize the importance of the occlusal system in complete denture design.
  • To highlight the significance of the neutral zone for mandibular denture teeth.
  • To explain the role of maxillary posterior teeth and denture bases in facial support.

Main Methods:

  • Analysis of the biomechanical interactions between artificial teeth and oral structures.
  • Definition and application of the neutral zone concept in mandibular denture placement.
  • Evaluation of the supportive function of maxillary dentures on facial tissues.

Main Results:

  • Mandibular artificial teeth must be positioned within the neutral zone for stress-free function.
  • The neutral zone is defined by the interplay between the tongue and the muscles of the lips and cheeks.
  • Maxillary posterior teeth and denture bases provide essential support to the upper lip and cheeks.

Conclusions:

  • Optimal complete denture design necessitates a holistic approach to the occlusal system.
  • Correct positioning of artificial teeth, particularly in the mandibular neutral zone, is crucial for denture stability and function.
  • Maxillary denture components play a vital role in maintaining facial aesthetics and preventing the 'denture look'.