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Introducing Dental 3D Imaging

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Natasha Idler

on 19 November 2013

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Transcript of Introducing Dental 3D Imaging

Cone Beam Computed Tomography: 3D Imaging
What is CBCT?
CBCT is a CT scanner specialized for the oral-maxillofacial area
USES Include:
Nerve Mapping
Surgical Treatment Planning
Dental Implanting
Orthognathic Treatment
Oral-Maxillofacial Surgery
CT quality at a lower dose
Less exposure time approx 10-70 sec
Dose comparable to 3-4 FMX
Increases Accuracy
Ability to Specify Exact Locations
Reduced image artifacts
Eliminates Superimposition
Increased Diagnostics
Optimized risk assessment
Costly - $150,000 -$300,000
Increased Liability
Insurance Increase
Diagnostic Responsibility
Not easily Reproduced
Training Requirements
Dental Implanting
Oral-Maxillofacial Surgery
What is a Dental Implant?
Who are good recipients for implants?
Individuals to have lost one or more teeth due to periodontal disease or suffered from trauma
Applications of (CBCT) in Oral-Maxillofacial Surgery
Improves the surgical treatment planning involved in dentoalveolar procedures dealing with cysts, tumors, trauma, sinus disorders, TMJ procedures, extractions, periodontic, orthognathic, & endodontic treatment. CBCT is also used to individualize sleep apnea and cleft lip/palate reconstruction surgical procedures.
1:1 object to source ratio
Exact location & extent
Distances between structures
Compared to the traditional 2 dimensional panoramic film, the use of the CBCT in extraction treatment planning optimizes the risk assessment of inferior alveolar nerve damage due to 3rd molar extraction. This is because of the exactness of nerve location on the 3d radiographs.
Advantages in 3D Implant

History of Dental Implantation
Bone grafting
Sinus Augmentation
Ability to measure bone height and width to support implant
Allows placement of the implant in the most ideal location
Avoid complications surgically
Procedure Planning
Cleft Palate TX Planning
CBCT is useful for preoperative assessment and treatment planning of cleft palate patients.
Also useful for determining post operative bone density.

For successful outcome of treatment, one needs a proper diagnosis and treatment plan.
3-D imaging helps discover a variety of Orthodontic issues BEFORE entering treatment such as:
Supernumerary teeth
Hidden impactions
Exact condylar positions
Corticol plate distances
Airway volumes
Root Positioning
Why should you Consider 3-D Imaging for Orthodontics?
Orthodontic Advantages
Excavated Mayan burial sites in Central America showed tooth shaped shells placed in empty tooth sockets
1952 Swedish Surgeon P.I. Branemark discovered that titanium naturally fuses with bone
69% of adults ages 35 to 44 have lost at least one permanent tooth to an accident, gum disease, a failed root canal or tooth decay.
By age 74, 26% of adults have lost all of their permanent teeth.

Implant created too large for the socket
Directional misplacement
Not enough bone or tissue support
Long procedures and numerous appointments
Surgical complications
Sinus Cavities
Insufficient bone
Complications without 3D Imaging
It is important for the Dental Hygienist to understand 3-D imaging in case the Dentist wants them to explain the risks & benefits associated with the treatment plan.
CBCT would be a wonderful investment to any Dental Care Team because the pros outweigh the cons:
Nerve Mapping
Surgical Treatment Planning:
Dental Implanting
Orthodontic Treatment
Oral-Maxillofacial Surgery
Increases Diagnostics
Optimizes Risk Assessment
3-D Cephalometric Tracing
Digital study models
saving your office space
Captured Views
1 low does scan provides every radiograph view needed including:
Lateral Ceph
AP Ceph
3-D Volume
Soft tissue below the chin and pass the nasium.
Avoids complications that pro-long orthodontic treatment.
Faster radiography
Better patient case acceptance
Faster case completion through 3-D planning.
Advantages to Digital Plaster Models
Complex malocclusion's can be better analyzed.
Provides accurate representation of:
Immediate supporting structures
Occlusal relationships
Provides impressions that extend far enough into the sulcus to allow accurate reproduction of all soft tissue anatomy before dental treatment beginnings.
TMJ Analysis
Enhances the diagnosis of cortical bone loss
Provides clear distinction between healthy and degenerative condylar morphologies
Improved detection of osteoarthritic morphology
CBCT in Endodontics
Periapical disease can be accessed and diagnosed sooner
Images of root fractures, root canal anatomy, and alveolar bone resorption are shown in their true size, location, and extent.
True cortical and cancellous bone thickness/density
Relation of root apices to structures such as the
maxillary sinus or inferior alveolar nerve.
This is an image of an endodontically treated
molar that was over-prepped causing nerve
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