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DANB's ORXO (ORXO) Practice Tests & Test Prep by Exam Edge - Topics



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Understanding what is on the DANB's ORXO exam is crucial step in preparing for the exam. You will need to have an understanding of the testing domain (topics covered) to be sure you are studying the correct information.

  • Directs your study efforts toward the most relevant areas.
  • Ensures efficient and adequate preparation.
  • Helps identify strengths and weaknesses.
  • Allows for a focused approach to address gaps in understanding.
  • Aligns your preparation with the exam's expectations.
  • Increases the likelihood of success.
  • Keeps you informed about your field's current demands and standards.
There is no doubt that this is a strategic step in achieving certification and advancing your career.

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DANB's Oregon Expended Functions - Orthodontic Assisting Exam Blueprint

Understanding the exact breakdown of the DANB's Oregon Expended Functions - Orthodontic Assisting test will help you know what to expect and how to most effectively prepare. The DANB's Oregon Expended Functions - Orthodontic Assisting has 100 multiple-choice questions The exam will be broken down into the sections below:

DANB's Oregon Expended Functions - Orthodontic Assisting Exam Blueprint
Domain Name % Number of
Questions
Preparing teeth for bonding or placement of orthodontic appliances and selecting, pre-positioning
and curing orthodontic brackets, attachmentsand/or retainers 		25 - 30% 26
Removing orthodontic bands, brackets and attachments with the removal of bonding material 25 - 35 % 26
Selecting and sizing bands 5 - 10% 5
Removal of separators 5 - 10% 5
Selecting, placing and removing of archwires and ligature ties 10 - 15% 11
Fitting and adjusting headgear 5 - 10% 5
Removing fi xed orthodontic appliances 5 - 10% 5
Taking impressions for study models or tempo-rary oral devices (e.g., space maintainers, orthodontic
retainers and occlusal guards)		 15 - 20 % 16

DANB's Oregon Expended Functions - Orthodontic Assisting - Exam Topics Sample Questions

Openbites will have banding of lower second molars:

Correct Answer:
later in treatment if needed.


orthodontic treatment for malocclusions such as open bites often requires a strategic and phased approach. an open bite is a type of malocclusion where there is an absence of vertical overlap of the teeth. this means when the jaws are closed, there is a noticeable gap between the upper and lower teeth, which can occur either in the front (anterior open bite) or at the sides (posterior open bite). treating this condition effectively often requires precise control over the timing and application of orthodontic devices, including bands.

in the context of orthodontic banding — particularly with lower second molars — the timing of when bands are applied is crucial. bands are rigid metal rings attached to teeth, typically used to anchor other appliances and to apply forces to the teeth and jaws. for patients with open bites, the lower second molars can play a significant role in stabilizing the dental arch and aiding in the correction of the bite.

the decision to band lower second molars "later in treatment if needed" rather than early or midway through treatment is based on several factors: 1. **treatment stability**: initially, treatment may focus on aligning teeth and adjusting the bite without the strong anchorage that bands provide. bands can offer too much force initially, which might complicate the earlier stages of bite correction. 2. **assessment of movement**: as treatment progresses, the orthodontist can better assess how the teeth are moving and whether additional anchorage is necessary to achieve the desired outcome. it becomes clearer later in treatment whether the lower second molars need the extra support from banding. 3. **progress evaluation**: waiting until later in the treatment allows the orthodontist to evaluate the progress and determine if the intended goals are being met. if there are signs that the desired occlusion is not being achieved, banding might then be applied to exert additional control and force. 4. **patient compliance and response**: later in the treatment, the patient's compliance and how their teeth and jaw respond to the initial phases of treatment can also be assessed, which is crucial for deciding whether to introduce more intensive methods like banding.

comparing open bites to deep bites, there are similarities in the complexity of treatment and the need for careful planning and adjustment of orthodontic procedures through the course of treatment. both conditions often require a detailed understanding of the dynamics of the patient’s bite and the strategic application of orthodontic appliances to achieve a functional and aesthetic outcome. hence, the approach to banding in both scenarios is cautiously progressive, often reserved for the later stages when the clinician has a comprehensive understanding of the treatment trajectory and can make informed decisions based on the specific needs of the patient's dental and skeletal structures.