June 2014 Flashcards
What are the other components of anxiety. Describe & give examples
• COGNITIVE:
- An inability to concentrate
- Hypervigilance
- Poor memory function
• BEHAVIOURAL:
- Avoidance
- Disruptiveness
- Escape
Give 4 implicated due to the traumatic experience
- No dental care/delayed tmt
- Increase levels of stress for pt. & dental team
- Poor OH
- Appointments being missed
4 signs & symptoms for dental abscess
- Red
- Swollen
- Pus
- Tissue around area tender
- Pain
Distinguish between lateral perio or periapical abscess
- History
- Deep pocket in LPA
- Vital tooth in LPA and non-vital in PAA
- Pus in pocket in LPA
- Pus in tissue in PAA
- Radiograph confirms bone loss in LPA
- Radiograph shows apical change in PAA & may show cavity near pulp
18 month infant comes with crown fracture and cut upper lip:
• 7 factors to ask when taking history
• 8 things to indicate NAI
7 factors: • Who child attending with • Where is the fractured bit of tooth (if stored, in what and for how long. If not, chest x ray) • Assess any other injuries to head • How & why did it happen • PMH • DH • SOCRATES
5 reasons why composite over GIC
- Aesthetic
- Stronger for higher loading sites
- Lasts longer (permanent restorations)
- Wear is similar to tooth tissue
- A good alternative to amalgam
3 ways of finishing a composite
- Fine diamond burs & TC burs
- Softlex discs
- Diamond polish paste
7 uses of GIC
- Primary teeth restorations
- Class V restorations in permanent teeth
- Erosion/abrasion lesions
- ART
- Luting cements
- Cavity bases
- Caries risk - F- release
- Fissure sealants
Dentine bonding - 4 adhesion systems and describe
• Type 1 (three stage)
Etch + prime + bond
- ‘All-Bond’
• Type 2 (two stage)
etch + (prime and bond)
- ‘Optibond solo’
• Type 3 (two stage)
(etch and prime) + bond
- ‘Clearfil SE’
• Type 4 (single stage)
(etch & prime & bond)
- ‘Prompt-L-Pop’
• 37% phosphoric acid
What do you use to bond composite to metal alloy
- Tin plating
- Metal primer
- Silca coating - CoJet
- preheat with cojet (silca)
- Apply silane
- Cover exposed metal surfaces with Opaquer and light cure 10s
- Apply bonding agent and light cure 20s
- Complete with composite and light cure
3 materials for high strength core
- Pure zirconia
- Pure alumina
- Glass infiltrated (feldspathic) alumina/zirconia
Patient has lost crown:
• How would you manage it after hx and examination
• 4 reasons why crown may have fallen out
• Name 3 types of temp crown for posterior teeth
• Manage:
- Find cause
- Ensure no damage to prep
- Ensure prep is correct and no undercuts
- Clean tooth of cement
- Fabricate new crown and cement
• Reasons why fell out:
- Unretentive prep due to minimal amount taken off
- Insufficient cement
- Poor technique (wet tooth)
- Marginal leakage
- Excessive occlusal force
• Types of crown for posterior:
- Custom matrix & protemp
- Direct - RMGIC
- Prefabricated - stainless steel
Functions of a temporary
- Protect the prep
- Identify underprepped areas
- Identify undercuts
- Protect pulp and dentine
- Aesthetics
- Maintain space and prevent unwanted tooth movement
- Maintain occlusal function
- Plaque control
- Easy removal
Patient has unrestorable UR1:
• What are three types of substructure
• Describe the dimensions and structure of the options with relation to aesthetics
• All ceramic - aggressive prep (tooth substructure):
- good aesthetics but opaque core, semi translucent if discolouration
• PFM (metal substructure) - lighter palatal, heavier buccal
- light can go through opaque core
- poor marginal aesthetics
- Good aesthetics due to porcelain on labial surface
• Dentine Bonded Crown (porcelain core)
- minimal prep
UR1 needs to be extracted on a patient who has a maxillary upper RPD and after xla needs to be fitted with an immediate denture. What would you provide the lab?
- Take impression with denture in mouth
- Take impression with no denture in
- Take impression of opposing dentition
- Occlusal record
- Lab card
- Photographs
