Contemporary Ortho Appliances Practice Test

These questions are part of the practice quiz. Start practicing

• Which statement best describes the interpretation of SNA, SNB, and ANB angles?
• Distinguish Class II elastics from Class III elastics and typical attachments.
• In an E arch, where are bands placed and what surrounds the arch?
• Regarding indirect bonding in the described system, which statement is accurate?
• Which statement about advantages of removable appliances is correct?
• What are the main roles and limitations of elastomeric chains in space closure?
• This system makes it possible to decrease which aspect?
• How does increasing rectangular wire cross-section affect incisor torque control and what trade-offs may occur?
• What is a common problem associated with plastic orthodontic appliances?
• Herbst appliances are controlled by which mechanism?
• What are common debonding steps and enamel cleanup after bracket removal?
• What do 3rd order bends control?
• Which condition is a great indication for indirect bonding?
• Which of the following is a disadvantage of direct bonding?
• A single Essix aligner yields only small tooth movements due to which property of the material?
• Which of the following is an advantage of indirect bonding?
• Curve of Spee leveling refers to what, and why is it important in finishing?
• For the described bracket system, which bonding method is required?
• Enamel damage from removal is a problem associated with which bracket type?
• Is there palatal coverage in a bionator?
• What is the primary use of Essix retainers?
• Describe how the Pin and Tube system connects each tooth to the archwire.
• Indirect bonding involves which of the following?
• What is the rate for rapid palatal expansion activation?
• Why is CBCT used selectively in orthodontics?
• What is the key difference between MBT bracket prescriptions regarding torque values and recommended wire sequences?
• Activator is made of plastic that covers the teeth of both arches and the palate.
• Match the order of bends: 1st order bends control facial/lingual inclination, 2nd order bends control angulation of bracket slots, 3rd order bends control torque in bracket slots.
• What is a Lingual Holding Arch and its clinical purpose?
• Which technology enables the fabrication of custom aligners in digital dentistry?
• What do 2nd order bends control?
• Which step follows the 3D scan in creating individualized brackets?
• In Pin and Tube appliances, how is tooth movement achieved?
• Most popular bonding method?
• How is progressive tooth movement achieved in Pin and Tube appliances over appointments?
• Which appliance is used to encourage forward positioning of the mandible with acrylic blocks on the molars?
• Which of the following is a known risk factor for external root resorption during orthodontic treatment?
• What strategies are used to manage an anterior open bite in a growing patient?
• Direct bonding is typically indicated for which of the following?
• DIBS stands for which of the following?
• Which appliance uses interlocking blocks to influence jaw growth?
• Why do titanium brackets reduce the failure rate in bonding?
• Which statement best describes the overall advantage of direct bonding?
• In the edgewise system, how did Angle reorient the bracket slot?
• What replaced soldered eyelets with ligature ties in the contemporary edgewise system?
• After a 3D scan for customized brackets, what process is used to contour the base of each bracket to the tooth surface?
• Are Herbst appliances removable or fixed?
• InBrace SmartWires are characterized as what?
• In straight wire appliances, which statement best describes bracket design?
• Which factor is described as a property of titanium that improves bonding?
• Which appliance provides significant tooth movement and skeletal effects?
• Cast stainless steel brackets are characterized by which of the following?
• Which statement about disadvantages is correct?
• The vestibular portion of Frankel appliances provides expansion of the dental arches due to the removal of what pressure?
• Individually customized brackets require which primary data source?
• Lingual therapy has what trade-off compared to labial therapy?
• Which statement about Bionators is true?
• Interproximal enamel reduction is indicated in which scenarios, and what precautions should be followed?
• Self-ligating brackets are associated with which primary advantage?
• Do titanium brackets and tubes reduce the failure rate in bonding?
• Bodily tooth movement occurs when the tooth translates without tipping. Which condition must the force system satisfy to achieve translation?
• How was the Invisalign approach introduced?
• Which of the following is NOT a type of self-ligating bracket?
• What is the Herbst appliance, and what changes does it typically produce?
• What material is the alternative to stainless steel for orthodontic appliances?
• Which age group is primarily associated with growth guidance using functional appliances?
• What does appliance prescription refer to?
• What is a defining feature of the Ribbon Arch configuration?
• Selective tooth extractions in orthodontics are considered to maintain or enhance facial profile by preserving lip support. Which statement is true?
• Removable appliance therapy includes which forms?
• Which appliance serves as a fixed palatal anchorage device connected to the upper molars to resist mesial movement?
• Which is a step after light curing when using indirect bonding steps?
• What does Wits appraisal measure?
• Describe headgear indications, biomechanical effects, and compliance considerations.
• What is a temporary anchorage device (TAD), and what are common indications?
• What is the difference between open-coil and closed-coil springs in space management, and when is each used?
• What is the primary objective of finishing and detailing in fixed appliance therapy?
• In the edgewise appliance, what component enables rotational control through ligature ties?
• What are common aligner therapy complications and how should detachment or poor fit be managed?
• In Ribbon Arch, what size is the gold archwire used?
• Edgewise uses a bracket with a horizontal slot of 22x28 and a wire of which material?
• If a Bolton tooth-size discrepancy is detected, treatment options may include which of the following?
• InBrace SmartWires are described as what type of appliance?
• Which of the following is an advantage of direct bonding?
• What steps constitute finishing and detailing in fixed appliance treatment?
• Bracket thickness variation is used to compensate for what?
• Activators can open the bite 3-4 mm.
• What is the typical effect of using the 0.019"×0.025" rectangular wire during finishing?
• Which statement best describes the performance differences between ceramic (LiSi) brackets and metal brackets in terms of friction, fracture risk, debonding, and durability?
• Which term is used to refer to a self-ligating bracket with a springy latching cap?
• What does Wits appraisal assess, and how does it relate to SNA/SNB?
• Which appliance is described as exerting pressure on the teeth to move the jaw forward?
• Indirect bonding involves what?
• For the early edgewise design, what feature provided rotational control?
• What strategies are used to address a deep bite during finishing?
• What are key factors for TAD success and maintenance?
• Bionator is described as a cut down activator with an interocclusal shelf and incisor capping if desired.
• What is the step after rinsing and drying during indirect bonding?
• What is an advantage of self-ligating brackets?
• What are Hyrax and Schwarz appliances, and when is rapid palatal expansion indicated?
• What are Forsus Fatigue Resistant Springs and their common clinical role?
• Plastic brackets are only useful when?
• Place ceramic brackets only on which teeth?
• Which statement best explains tipping tendencies during space closure if the force system is not properly controlled?
• When addressing detachments or poor fit in aligner therapy, which management steps are typically considered?
• Herbst appliances provide significant what effects?
• Incisor torque in finishing with extraction therapy influences which outcome?
• What resolves the 2nd and 3rd problems of the plastic brackets?
• Which cephalometric measurement reflects maxillary position relative to the cranial base?
• What is the primary purpose of functional appliances?
• In achieving controlled tooth movement, what is the primary purpose of controlling the moment-to-force ratio?
• How is arch expansion achieved in an E arch?
• How do intermaxillary elastics influence vertical and sagittal tooth movements for Class II correction?
• In orthodontics, the center of resistance of a tooth is defined as what?
• Which approach provides better control for closing extraction spaces: closing loops with a defined M/F ratio or elastomeric chains, and why?
• Compare fixed lingual retainers with removable Hawley retainers.
• In management of transverse maxillary deficiency in growing patients, which procedure is indicated?
• Bolton analysis is used to assess tooth-size discrepancies by comparing which of the following?
• Invisalign is a result of development of which retainer?
• The interaction of the maxillary and mandibular components of the twin block controls which aspects?
• Common indications for a TAD include
• Activators advance the mandible several millimeters for Class II correction.
• What strategies reduce decalcification and enamel demineralization during fixed appliance therapy?
• With activators, lower incisors are capped to control the forward displacement of the lower arch.
• The activator design is intended to advance the mandible for Class II correction.
• In lingual therapy, what is attached to the gold pad?
• Which strategy helps minimize white spot lesions during fixed appliance therapy?
• Bionators are used to __ the bite.
• How many types of self-ligating brackets are described?
• Active plates are used for tooth movement in which age group?
• In lingual appliances, achieving the same three-dimensional control from the lingual surface as the labial surface comes with what drawbacks?
• What is a Nance appliance and how does it function in maxillary anchorage?
• True or False: Only small movements are possible with a single Essix aligner.
• Which statement about activators is NOT true?
• In aligner therapy, what attachments are used and what movements do they assist?
• What is the first step in indirect bonding?
• Bionator blocks provide __ control.
• Interceptive elastics in mixed dentition are used to correct bite relationships by applying forces between arches to guide eruption. Which option best represents this use?
• In Frankel appliances, the pad aims to reposition which jaw?
• What is the purpose of a facemask (reverse-pull) appliance and its skeletal target?
• Removable appliance therapy includes which categories?
• Which appliance is a removable expansion appliance?
• What is a common limitation of 3D progress tracking in orthodontics?
• Leveling the curve of Spee during finishing improves which aspects?
• What is a common extraction pattern in orthodontics for crowding, and how does it relate to facial profile?
• Compare Twin Block and Bionator functional appliances in design and clinical use.
• Interceptive elastics in mixed dentition are used to what?
• Which finishing-stage archwire size is typically used to provide torque control?
• Differentiate rapid palatal expansion from slow expansion in terms of rate, appliances, and potential risks.
• Is an E arch a fixed or removable appliance?
• When would you choose a palatal TAD versus a buccal TAD, and what factors influence placement?
• Twin block exerts pressure on the teeth to move the jaw forward.
• Which of the following is another advantage of indirect bonding?
• Bionators allow for __ posturing of the mandible.
• In Ribbon Arch, how is the archwire held behind the tube?
• Self-ligating brackets are characterized by which feature?
• Which statement describes the successful approach to lingual appliances?
• What do 1st order bends control?
• Twin block exerts pressure on the teeth or mucosa?
• Define the MARA appliance and its typical effect on skeletal correction.
• What are the roles of a Hawley retainer and a Nance appliance in retention and anchorage?
• Current designs of activators impede eruption of the upper posterior teeth while allowing the lower incisors to erupt.
• What does adding a metal slot to plastic brackets accomplish?
• The expansion produced by the vestibular portion of Frankel appliances results from removal of which pressures?
• What are the sizes of the two modern edgewise appliances?
• Which problem is associated with ceramic brackets?
• Outline the typical archwire sequence from leveling to finishing in fixed appliances.
• In Frankel appliances, a small pad is placed against which structure to stimulate mandibular repositioning?
• What are best practices for bonding and isolation to prevent enamel damage during fixed appliances?
• Stamped brackets are described as which of the following?
• Activators are suitable for which type of divergence?
• Which statement is true about direct bonding?
• What are typical retention durations for removable versus fixed retainers?
• In which decade were Essix clear retainers introduced to orthodontics?
• What is the primary goal of using TADs in orthodontics?
• How is unilateral or bilateral crossbite treated with expansion, and what stability considerations apply?
• Herbst appliances hold the mandible in which position?
• What is the feature of the lingual pad-based approach?
• Which of the following is NOT a disadvantage of indirect bonding?
• Which radiographic finding is a sign of external root resorption during orthodontic treatment?
• Indirect bonding is a necessity for which type of braces?
• What criteria guide choosing fixed appliances versus clear aligners in adults?
• CBCT is used in planning and evaluating orthodontic treatment outcomes for which purposes?
• How long do you etch before bonding brackets?
• In Edgewise appliances, what are the slot orientation and dimensions?
• Which of the following is described as a change in contemporary edgewise appliances?
• Which sequence lists the first three steps of indirect bonding?
• Which appliance is fixed intermaxillary and used to distalize maxillary molars and advance the mandible for Class II correction?
• Which factor is NOT typically considered when choosing fixed appliances versus clear aligners?
• How has digital dentistry influenced orthodontic planning and appliance fabrication?
• What technology underpins Invisalign's manufacturing process?
• Which step is immediately before inserting the archwire in indirect bonding?