- Distalize max molars - Distal tipping max molars - Mesial movement of mandibular molars - NOT decrease occlusal plane (STEEPENS)

123 Questions Flashcards by Dakota Miller

What is true about light and chemical cured?

There is no significant difference in failure rates of visible and chemical cured

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T/F
- 1mm anterior slide is okay
- 1 mm lateral slide is okay

True
False

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What does not change when cranial base steepens?

FMA

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What is not an indication for early treatment?

Consolidate anterior spacing

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What is not associated with hyperdivergent anterior open bite?

Long mandibular corpus length

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True/False
- If a patient has TMD, IVRO is a good choice.
- Rigid splinting recommended.

True
False - IVRO requires intermaxillary fixation

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Are TMD and long term condyle problems an issue with mandibular mid-symphyseal distraction osteogenesis?

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What can help prevent labially impacted canines?

RME, HG, and EXT of primary canines

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What is the best indicator of impacted canine?

Absence of canine bulge at age 9-11

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What is true of the effect of forces on root resorption?

Heavy forces cause more root resorption than light forces

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What is the primary reason for external apical root resorption?

Prior history of root resorption

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Patient is hyperdivergent anterior open bite with maxillary excess. Best way to treat?

TADs to intrude molars

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What has sutural growth (intramembranous), replacement of cartilage (endochondral), and resorption/apposition?

MMOST - Mandible, Malleus, Occipital, Sphenoid, Temporal?

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What is not true about palatally impacted canines?

Most likely due to primary canines being extracted early

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What percentage of flush terminal plane goes to Class II?

45% goes to class II, 55% to Class I

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What is not an effect of opioid abuse?

Pupil dilation - They get pupil constriction

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True/False
- Parenteral bisphosphonates decrease OTM and prevent relapse
- Work by binding to hydroxyapatite

True
True

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Where does CN7 exit?

Stylomastoid foramen

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What is true about human growth hormone?

Mandible grows more than maxilla, but both grow

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Effects of Herbst?

Distalize max molars
Distal tipping max molars
Mesial movement of mandibular molars
NOT decrease occlusal plane (STEEPENS)

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CL/P have hard time with speech because…

CL/P have velopharyngeal insufficiency, causing hypernasality

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What does increasing OP to SN do?

Decrease Wits - Wits gets more negative as you rotate the occlusal plane CW

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What are indications of closed lock?

No joint sounds
Limited opening
Pain when forced open
NOT no deviation during opening - closed lock has deviation to ipsilateral side on opening

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What is true when placing Maryland Bridge?

Best perpendicular to occlusal plane

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What to do to maintain ridge in missing U2 cases?

Let canine erupt into U2 spot then distalize later

How much space to leave for U2 buildup?

Leave 2/3 distal and 1/3 mesial

What do you NOT do for canine sub?

Adjust distal marginal ridge

What is not diagnostic criteria for canine sub?

Height of central incisors

What do you not find in hyalinized areas?

Osteoclasts

True/False - Ratio of SS is 18% chromium, 8% nickel - SS has low modulus of elasticity

- True - False

What doesn’t cause black triangles?

Root convergence

What is TAD success?

Vector amount, vector direction, bone quality

What is most important factor for primary stability?

Cortical bone thickness

True/False - CBCT is best for the smallest FOV possible - Radiation affects all patients the same

- True - False

CBCT accuracy depends on…

Voxel size

CBCT 0.4mm voxel size is good for?

Neither bone height nor thickness

Does intrusion lead to more support of the root?

What is the standard of care?

Court rulings

What is used to assess the potential for long term effects that might occur in the future?

Effective dose

What is used to assess how much biological damage is expected from the absorbed dose?

Equivalent dose

What is used to assess the potential for biochemical changes in specific tissues?

Absorbed dose

What is the effect of deviation angle (play or slop in wire in bracket) on torque?

DOES affect torque

What causes translation?

Capsular

1mm proclination is how many degrees?

3 degrees?

What is the main effect of lip bumper?

Proclination of incisors

What do you NOT do for external invasive cervical root resorption?

Monitor annually

Which archform is least common?

Square

Limitation of SARPE?

Coronoid process

What is not an etiology of TMD?

Posture

T/F Occlusal adjustments are not recommended for TMD?

True

What is best for patient with perio problems?

Clear aligners

What is most radiation when imaging TMJ?

Tech99

What is best imaging for DJD?

CBCT

True/False - Less than 5mm is best for papilla - Greater than 6mm, 77% have papilla

- True - False (56%)

MARA vs Herbst?

- MARA does not procline lower incisors more than Herbst - MARA had greater increase in long term mandibular length (1mm/year) vs Herbst - Herbst had the greatest maxillary restriction - MARA decreases SNA and SNB - Both steepen occlusal plane and decrease Wits

What are the effects of the Twin Block?

- Dental and skeletal - Cap incisors to prevent proclination?

True/False - You must use Pano before IPR - Distal has more enamel than mesial of tooth

- False - Periapical - True

Elastics are made of….

Polyurethane

Main bacteria in juvenile periodontitis

What is not seen in Fibrous Dysplasia (but is seen in Pagets)?

Pre-malignant transformation

What is not true of class II div II?

More common in women (More common in men?)

What does NOT innervate the tongue?

IA nerve

Where to put hands for kids for CPR?

Lower half of sternum

How many compressions for CPR?

100 beats/min

What is not true of OKC?

Most common in posterior maxilla (Most common in posterior MANDIBLE)

Bone loss in perio is due to…

Reduction in osteoblasts

What imaging is best for disc perforation?

Arthrography

Percent of kids with condyle fracture and normal growth?

75%

What did Edward Angle not invent?

Labiolingual (PEER - pin/tube, e-arch, edgewise, ribbon arch)

What forms premaxilla and primary palate?

Medial nasal process

Which disease is most easily transmissible?

Hep C

What does not happen in transition for primary to permanent?

Max canines move distally into primate space (MESIALLY)

What does Forsus not effect?

SNB

CL/P formation in which stage?

Which sinuses do not help in breathing?

Paranasal sinuses

What percent of Class II is due to mandibular retrognathia?

75%

_________ is for when you want to predict a continuous dependent variable from a number of independent variables.

Regression

How does the chin remodel?

Deposition on external of lingual cortex

What are the features of Aperts?

SAM - syndactyl, autosomal dominant, **mental retardation**

What has Wormian bones?

CHARPOD Cleidocranial dysplasia, hypothyroid, hypophosphatase, Apert’s, Rickett’s, Pyncnodysostosis, osteogenesis imperfecta, downs

True/False - DI 1/8000 - Affects only permanent

- True - False

T/F Crouzons fuse at 7-8

False

How long is RAP effect?

4 months

True/False - Condylar growth more than sum of mad molar growth - Mand plane increase with growth

- True - False - decreases with growth

Worst wire for torqueing?

A-NiTi

Force for protraction facemask?

450g below OP?

Pt opens, gets stuck to left, hears pop, able to close

Posterior disc displacement on left

True/False - SARPE more stable than 3 piece - Down fracture needed for SARPE

- True - False

What to use for heat sensitive?

Vaporized H2O2

Muscles that don’t elevate hyoid

Omohyoid

Features of Lichen Planus?

**open sores,** autoimmune, wickham’s striae, graft vs host disease

Most rapid somatic growth?

Conception to birth

T/F - 60% of saliva comes from parotid

False (20%)

Not true of archform

Mandible based on maxilla

Not a primary growth site

Synostosis

True/False - Early treatment of skeletal open bite in early mixed dentition is indicated - It is the period that will result in most skeletal changes

- True - True

True/False - Important to start facemask in early mixed dentition - In order to maximize skeletal changes

- True - True

Not affected in RPE

Premaxilla

Stress same but strain increases

Phase transformation

How much space for lateral implant compared to central incisor?

75%?

Puberty?

Hypothalamus

PDL fibers are….

Inelastic

Excessive vertical nasomaxillary growth leads to…

Mand retrognathia

Bone responsible for complex growth of orbit?

Lacrimal

What is not used in smiling?

Procerus & Orbicularis oris

Most anterior inferior point max alveolus?

Prosthion

Bjork all but in an average growing patient

Deposition of bone on inferior surface of ramus, below the angle

True/False - 91% is normal for Bolton for 6-6 - 77% is normal for Bolton 3-3

- True - True

First thing to do when you see unilateral xbite but no shift clinically detected

Flat splint

Functional matrix?

Soft tissue

Is CBCT fan shaped?

No, CT?

Phase transformation from A to M NiTi is…

Thermally induced

Best way to treat 1 wall defect

Extrude and occlusal equilibrate

TPA for AP anchorage?

Decrease voxel size?

More photons for better image quality Higher quality, more radiation

During nonworking, which cusp inclines are most likely involved

Buccal inclines of mandibular cusps

True/False 3mm implant adjacent to natural tooth will cause papilla formation problems

False

Less than 1mm implant to natural tooth. What will happen?

Inadequate papilla will form

What type of bone forms right after or beginning of ortho?

Woven bone

HPHG - line of action above center or resistance

Distal root tipping

Asymmetric HG

Place longer outer bow on Class II side

Does mandible follow maxillary archform ?