Application of Dental Materials Flashcards
BIOCOMPATIBILITY
WORKS BOTH WAYS-
MATERIAL MAY
AFFECT THE ENVIROMENT AND/OR
THE ENVIROMENT MAY AFFECT THE
MATERIAL.
BIOCOMPATIBILITY
THE MATERIAL MUST BE OF BENEFIT
TO THE PATIENT AND ABOVE
ALL,THE PATIENT MUST
BE SAFE
FROM ANY ADVERSE REACTIONS.
THE BIOLOGICAL REACTION CAN TAKE PLACE
EITHER AT A
LOCAL LEVEL ( injection site) OR
FAR REMOVED FROM THE SITE OF CONTACT (i.e.,
systemically-adverse Rx from acrylic monomer
in a denture- (denture stomatitis).
BIOCOMPATIBILITY
SYSTEMICALLY MAY NOT ALWAYS BE
READILY
APPARENT-DERMATOLOGICAL,IMMUNE-
MEDIATED,OR NEURAL REACTIONS.
BIOCOMPATIBILITY
MOST COMMON Rx to DENTAL STAFF IS- (2)
hand/facial dermatitis or respiratory symptoms.
POSSIBLE INTERACTIONS BETWEEN DENTAL
RESTORATIVE MATERIAL AND THE BIOLOGICAL
ENVIROMENT INCLUDE: (4)
1. POSTOPERATIVE SENSITIVITY
2. TOXICITY-Nanomaterials(size of 1-00nm)
growing concern about their Biosecurity &
crossing the blood-brain barrier and going to the
Central Nervous System.
3. CORROSION
4. HYPERSENSITIVITY/ALLERGY-Amalgam
or its components may cause Type IV ( usually
24-48 hours after exposure) on the oral mucosa
Contact allergies
to dental
materials: (4)
86 subjects-83.7% women
Average age 63 years (24-86)
Most common allergies were to metals, of which
nickel and cobalt were the most common
allergens.
Denture resins showed mucosal changes,
contact stomatitis(54.4%) & burning sensations
of the mouth were mostly reported.
SOME PATIENTS CAN DEVELOP (2)
ALLERGIC OR
HYPERSENSITIVE REACTIONS TO EVEN VERY
SMALL QUANTITES OF METAL
SOME PATIENTS CAN DEVELOP ALLERGIC OR
HYPERSENSITIVE REACTIONS TO EVEN VERY
SMALL QUANTITES OF METAL SUCH AS : (4)
MERCURY
OOL
NICKEL
COBALT
MERCURY-
direct contact of oral mucosa with
this material can cause oral lichenoid
lesions(OLL)*.
OOL-
chronic inflammatory lesion on the oral
mucosa. Dental materials, certain medications,
patients with systemic diseases, chronic
hepatitis.
NICKEL-
ask patient if they can wear costume
jewelry.
skipped
COBALT-
2017 UK-metal-on-metal hip implant
failure. Complications after revision due to
cobalt and chromium toxicity.
MUCOSAL MELANOMA OF THE ORAL CAVITY IS A RARE. BUT IS
A HIGHLY AGGRESSIVE NEOPLASM-NEED TO KNOW THE MORE
FREQUENT Dx’s.
— is one of the most common causes of
allergic contact dermatitis and produces more
allergic reactions than all other metals
combined.
Nickel
Several brands of orthodontic wires are made
of
nickel titanium alloy
Non-precious metal crowns contain high levels
of nickel. Some as high as —%
55
DENTAL PRACTIONERS ARE ULTIMATELY
RESPONSIBLE FOR THE
MATERIALS TO WHICH A
PATIENT WILL BE EXPOSED.
SARGENTI PASTE FOR ROOT CANALS-
paraformaldehyde
YOU MUST HAVE A KNOWLEDGE AND
UNDERSTANDING OF THE COMPOSITION OF THE
MATERIALS TO BE USED AND HOW THESE MIGHT
AFFECT THE PATIENT. (2)
SAFEST & MOST EFFECTIVE
PLEASE READ AND UNDERSTAND ALL INSERTS
THAT COME WITH MATERIALS
MATERIALS CAN CAUSE IRREVERSIBLE DAMAGE-CAUSING DESTRUCTION OF (5)
CONNECTIVE TISSUE,BONE,NERVES,CHRONIC
INFECTION & PAIN.
CONNECTIVE TISSUE,BONE,NERVES,CHRONIC
INFECTION & PAIN. MATERIAL CAN TRAVEL THROUGHOUT THE
BODY- (5)
BLOOD, LYMPH NODES,ADRENAL GLADS,KIDNEY,BRAIN
AOMT-
International Academy of Oral Medicine & Toxicology. www.IAOMT.org-states they are the LEADERS is Science-Based Biological Dentistry.
If you wish to remove mercury amalgams, fillings or metal-based crowns it is recommended to use an IAOMT dentist certified in the
Safe Mercury Amalgam Technique (SMART)
HAD-
Holistic Dental Association-Improving overall health through dentistry
SOME MATERIALS HAVE A DISTINCTLY POSTIVE
EFFECT ON THE
PULP