exam 4-lecture 2 Flashcards
pad of fibrocartliage or dense fibrous tissue present in some synovial joints (TMJ)
articular disc
what is required before HIV testing?
informed consent by patient and protest counseling
what is the single most important clinical parameter used to asses implant health?
clinical mobility
direct apposition of bone to the implant surface
osseointegration
what results from radiation therapy?
mucositis- painful, erythematous, ulcerated mucosa
xerostomia
rampant decay and candidiasis
osteonecrosis- necrosis of bone
what does HIV infect?
CD4 T-helper lymphocyte for cell mediated immunity and regulating the immune response
what are the three types of immunodeficiency?
brutons disease
digeorges syndrome
severe combined immuneodefiency
with implants, this is infection of the issues around the implant and they are treated same as dentition
bacterial infection… local debride with plastic instruments, topical or systemic antimicrobials and improve patient oral hygiene
what are signs of peri implant disease?
BOP, swelling and erythema
transparent, viscous fluid that is secreted by the synvoial membrane and found in joint cavities
synovial fluid
when are HIV antibodies detectable in blood?
6 weeks after initial infection but some not until 6 months to a year…
time from HIV infection to AIDS is 2-10 years
what are causes of peri implant disease or failure?
poresthetic framework doesn’t precisely fit the abutment
patient demonstrates heavy occlusal function or parafunction
implant has been placed in poorly qualified bone or insufficient quality of bone
position or number of implants placed dose not favor ideal load transmission
what clinical manifestations occur as AIDS related complex?
oral candidiasis, fatigue, weight loss and lymphadenopathy
this is a number of opportunistic diseases… pneumocystis pneumonia, candidiasis and KAPOSI’s sarcoma and hairy leukoplakia
AIDS
this immunodeficiency involves B or T cells
primary immunodeficiency
what bacteria is associated with healthy implants?
nonmotile cocci and rods
these are immunodeficiencies are those that occur as a result of an underlying disorder, AIDS
secondary immunodeficiencies
this type of immunodeficiency is when B cells do not mature and thus a lack of plasma cells throughout the body
brutons disease
what are non surgical treatments of TMD?
pharmacological relief (analgesics, muscle relaxants and pain relievers)
physical therapy (ultrasound, warm heat and spraying and stretching of muscles and jaw exercise)
mandibular splints (mouth guard)
this identified the virus rather than antibody and thereby enables the ID of the infection earlier
polymerase chain reaction (PCR)
this is the articulation between the condyle and the glenoid fossa of the temporal bone
TMJ
this type of immunodefiency is common in infants… most infants die within the first year of life and are vulnerable to all forms of viral, fungal, and bacterial infections
Severe combined immunodeficiency
method of evaluating a joint involving the insertion of small cannulas along with a camera and instruments into a joint
arthroscopy
this was identified in 1983, transmitted through sexual contact with infected blood and infants of infected mothers.
HIV/AIDS
what type of joint is TMJ?
hinge and sliding
used to determine disc position (injection of contrast medium and then radiography of joint)
arthography
what two antibodies test to determine HIV infection?
enzyme linked immunosorbent assay (ELISA)
western blot test-more specific
categorized as disorders of the masticatory muscles, internal derangements or displacement of the disc and disorders of the joint. can lead to arthritis
TMD
a transmucosal element that screws into the top of an implant fixture and can support a single crown or a framework for a fixed or detachable prosthesis
abutment
what is required in order for a person to be seropositive for HIV?
must have 2 positive ELISAS and a positive western blot test
a dry, crackling sound
crepitus
what are the muscles of mastication?
masseter, temporalis and medial/lateral pterygoid muscles which causes pain via muscle spasm
interposed in the space between the temporal bone and the mandible (divides space into superior/inferior)
articular disc
what are some surgical treatments of TMS?
arthroscopic procedures
disc location (replacing the disc to its normal an anatomic position)
meniscectomy (complete removal of damage disc)
what are ideal properties of dental implant material?
high strength, maximal inertness, ability to bend
what are some problems that would characterize TMD?
problems with chewing
malocclusion
abusive habits
bruxing and clenching
problems with dentition
extensive dental or ortho treatment
history of surgical treatment of the jaws
can hear popping clicking and crepitation during movement
this is used to detmine position and condition of disc
magnetic resonance imaging (MRI)
this fills the joint spaces which lubricants the joint
synovial fluid
a joint
articulation
what is the maintenance of optimum health of implants?
plaque must be inhibited
early microbial colonization on the implant surfaces must be stopped
all existing plaque must be removed
the existing plaque much be changed from pathogenic to nonpathogenic
what are the two types of implants?
endsosseous (osseointegrated)
subperiosteal
listening to sounds within the body
auscultation
what type of instruments and fluoride is used for implants
plastic and neutral
this type of immunodeficiency is when the thymus is deficient or lacking and T lymphocytes do not mature
DiGeorges Syndrome (thymic hypoplasia)
this is due to abnormalities in the functioning of the TMJ or associated structures
TMD
