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Study guide exam 4
Terms in this set (51)
Custom-fabricated framework of metal that rests over the bone of the mandible or maxilla, under the periosteum: complete arch or unilateral. Used when there is a lack of bone
A dental implant that penetrates both cortical plates and passes through the full thickness of the alveolar bone. It is also known as a mandibular staple implant or staple bone implant
Transosseous Implants (Transosteal)
An implant placed within the bone to replace a single tooth or provide support for the replacement of complete or partial loss of teeth. These are placed fully within the bone and are the most widely used implants. Successful tooth replacement is accomplished by osseointegration, which means direct bone anchorage to an implant body.
Endosseous (Endosteal) Implant
Refers to direct structural and functional union between the implant and healthy living bone. It indicates successful placement of the implant. No mobility is evident.
Refers to the infusion of connective tissue cells between the implant body and surrounding bone. It indicates failure of osseointegration. Mobility is evident
Soft tissue connection
sulcular epithelium is in contact with the implant surface. The attachment appears similar to the JE of a natural tooth. No connective tissue fibers can exist to hold the attachment as with a natural tooth. Has a biologic seal.
Reversible bacterial infection in the soft tissue similar to gingivitis. Mild color change with bleeding may be present. Increased probing possible from inflammation (pseudo pocket). No bone loss has occurred.
· Emphasize at-home OH care
· Antimicrobial toothpaste
· Short-term 0.12% CHX
· Hygiene debridement
· 3-4-month recare
Gingival inflammation and BOP common. Increase in probing depths beyond baseline after healing (greater than 6 mm). radiographic bone loss.
· NSP treatment - debridement and CHX
metal or plastic
Prepared with a mesh backing to help retain the resin bonding agent. Mesh backing also called a bonding pad. Can harbor bacteria that cause demineralization.
attaches to the bracket to generate and distribute forces that guide orthodontic tooth movement.
used as chains and on individual teeth. Hold wires in the brackets and apply light continuous force to close spaces between teeth. Holds wires in the brackets.
Removable Aligner System
A. Series of custom, clear thermoplastic aligners are fabricated.
B. Each set of aligners progressively moves the teeth.
C. Impressions and study models are made. These are scanned into a computer to make a 3D model of the step-by-step process of movement of the teeth.
D. Retention attachments are bonded on the teeth so the aligner has a spot to clip into place.
E. Each tray/aligner is worn approximately 2 weeks.
incidence of gingivitis is high in preteens and teens. Increasing number of adults in ortho raises concerns for caries and perio disease.
Power brushes have been shown to be more effective for maintaining gingival health and cleaning around appliances than manual toothbrushes
Application of a fluoride varnish immediately following bonding can help to reduce demineralization by up to 38-44%
Replacement for a missing tooth may not be indicated for a patient who has sufficient remaining teeth for function such as:
a. Third molars are not replaced after extraction
b. Extracted second molars that have not opposing tooth
c. Teeth extracted for ortho
Risks/ Consequences of not replacing missing teeth include:
a. Migration of adjacent teeth
b. Migration of opposing teeth (supraeruption)
c. Remaining teeth may suffer from the added function and stress
d. Loss of occlusal vertical dimension
e. Alveolar bone atrophy*****
What is an appliance with a resin base that has retainer clasps to provide stability to the appliance. It is used to help correct maxillofacial defects. Some obturators have anterior prosthetic teeth due to the nature of the defect.
obturator purpose and uses
· Pts. With previous cancers involving the maxilla
· Cocaine abusers with necrosis of the nasal septum
· Pt. with an area lost due to trauma
· Cleft palate
Conventional denture/ tissue-supported complete denture
delivered initially after extractions. Must be relined about 6 months later.
temporary and used for diagnosis and treatment.
Conventional denture/ tissue-supported complete denture
long-term complete denture prosthesis that sits directly on the gingiva covering the alveolar ridge.
Types of Removable Complete Dentures
- Tissue-Supported Complete Denture
- Implant denture
Tissue-Supported Complete Denture
removable prosthesis that replaces the entire dentition and rests on the mucosal-covered alveolar ridge.
a complete dental prosthesis that is supported in part or whole by one or more dental implants. The denture itself is not an implantable device.
Removable; rests on one or more remaining natural teeth. Also called an overlay.
Removeable Immediate denture
fabricated for placement immediately following the removal of natural teeth. After approx. 6 months when soft tissue and bone has healed, the denture must be remade, relined, or rebased to fit
After teeth are removed, the alveolar bone which formerly supported the teeth undergoes resorption. Major bony changes occur during the first year after the teeth are removed
Tori and Exostoses
Benign bony outgrowths may interfere with the fabrication and wearing of dentures.
bony enlargement located over the midline of the palate.
bony mass generally located on the lingual in the region of the premolars.
A bony protuberance generally located on the buccal aspects of maxilla and/or mandible.
Principal Causes of Lesions Under Dentures
A. Ill-fitting dentures
B. Inadequate oral hygiene
C. Continuous wearing of dentures***
Generalized Inflammation, Candida albicans Infection
•Generalized redness, inflamed mucosa of the supporting tissues occurs
•Patients with a depressed immune system, history of head and neck radiation, and antibiotic use are more prone
Oral candidiasis in the form of denture stomatitis is a reoccurring disease common to denture wearers
Papillary Hyperplasia/ Inflammatory Hyperplasia
located on the palate, rarely outside the confines of the bony ridges. The overall lesion appears as a group of closely arranged, pebble-shaped, red, edematous projections.
Long-standing chronic inflammatory tissue appears in single or multiple elongated folds related to the border of an ill-fitting denture
Deep fissuring at the angles of the mouth, with cracks, ulcerations, and erythema. Vitamin B deficiency can make it worse. Prevalence higher in females. Can be treated with antifungals or combination liquid Vit A and E.
The risk for implant failure in smokers is:
twice as high than in nonsmokers
Which of the following denture patients would be most prone to oral candidiasis?
a patient with a history of head and neck radiation therapy
Which type of dental implant is most commonly used?
The term osseointegration means:
structural and functional union between implant and bone
What is the #1 indicator of dental implant failure?
All of the following make a patient a poor risk for dental implants except:
beta blocker medication
All of the following are characteristics of fibrous encapsulation except:
presence of Sharpeys fibers
Why should patients who wear partial or complete dentures be advised to leave the prosthesis out at night while sleeping?
to prevent denture stomatitis
to allow the tissue to rest
to prevent infections such as Candida albicans
Wolff's Law (1892) states that bone is laid down in areas of least stress and is resorbed in areas where it is most stressed
Why is it important to conduct intraoral examinations on all people even if they wear dentures?
because tissue changes can be important indicators of disease
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