Week 1 Introduction to Orthodontics

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Questions and Answers

What must a dental hygienist adhere to in order to demonstrate professional responsibility?

Client preferences

Popular dental practices

Personal beliefs

Healthcare legislation and professional guidelines (correct)

Which action is considered a controlled act that only authorized individuals can perform?

Scheduling patient appointments

Scaling and root planning (correct)

Providing oral hygiene education

Administering local anesthesia

Under what condition can dental hygienists perform orthodontic procedures?

Following an order by a dentist (correct)

When working independently

Based on their personal judgment

After receiving a direct complaint from a patient

What is true about the use of a high-speed handpiece in dental procedures?

Its classification depends on the procedure being performed Signup and view all the answers

Which of the following actions requires supervision by a dentist or dental technologist?

Repairing an orthodontic appliance Signup and view all the answers

What is the ideal ratio when measuring the length and width of the face?

1.6:1 Signup and view all the answers

Which measurements are included in the analysis of facial length?

Above eye to bottom of nose Signup and view all the answers

What is indicated if the dental midline of the lower arch is not visible when smiling?

Dental correction may not be visible Signup and view all the answers

In extraoral photographs, which view helps assess the position of the jaw?

Profile view Signup and view all the answers

Which is NOT a factor that influences facial analysis?

Favorite color Signup and view all the answers

What significant contribution did Pierre Fauchard make to orthodontics in 1728?

He published a book discussing ways to straighten teeth. Signup and view all the answers

Which material was commonly used in the early development of braces?

Wood Signup and view all the answers

What was the purpose of the initial assessment in orthodontic treatment?

To obtain initial dental records and learn about the client. Signup and view all the answers

Who perfected the Bandeau and was the first to recommend extraction of premolars for crowding?

Ettienne Bourdet Signup and view all the answers

What is a key objective of the client interview or case history in orthodontic assessment?

To identify barriers to treatment. Signup and view all the answers

Which aspect does orthodontics primarily focus on?

Prevention and treatment of malocclusion. Signup and view all the answers

What should be documented in the client's chart during the intake process?

The client's chief complaint in their own words. Signup and view all the answers

Why is health history important in orthodontic assessment?

It helps in understanding potential healing issues. Signup and view all the answers

What is the purpose of placing tracing paper over the cephalometric radiograph?

To trace the anatomical structures for analysis. Signup and view all the answers

Which material is NOT required in the metric approach for cephalometric tracing?

Blueprint paper Signup and view all the answers

What is identified as the Gnathion (Gn) in cephalometric analysis?

Inferior contour of the chin. Signup and view all the answers

What does the graphic approach in cephalometric analysis involve?

Overlaying an individual's tracing on a reference template. Signup and view all the answers

What limitation of cephalometric analysis is highlighted in the material?

Stable reference structures may have variability due to landmark identification errors. Signup and view all the answers

Which tool is considered the simplest for determining symmetry in orthodontic study models?

Transparent ruler grid. Signup and view all the answers

What does the PNS refer to in cephalometric analysis?

Posterior spine of the palatine bone. Signup and view all the answers

What kind of jaw models are included in orthodontic study models?

Mandibular and maxillary plaster models. Signup and view all the answers

What is assessed during the initial assessment related to occlusion?

Type of skeletal relationship Signup and view all the answers

What is indicated by a prognathic profile in a client?

The mandible is positioned significantly forward Signup and view all the answers

Which of the following habits is associated with changes in dental arch form?

Thumb sucking Signup and view all the answers

What is the primary purpose of performing a hard tissue exam?

To diagnose dental caries and periodontal disease Signup and view all the answers

Which assessment would evaluate the functioning of the temporomandibular joint (TMJ)?

Functional exam Signup and view all the answers

What aspect of dental development does overbite measure?

The position of upper teeth in relation to lower teeth Signup and view all the answers

Which of the following is a purpose of radiographs in the dental assessment?

To evaluate current dental status and conditions Signup and view all the answers

Which classification indicates a normal occlusal relationship?

Class I Signup and view all the answers

Study Notes

Dental Hygienist and the Orthodontic Setting

Dental hygienists must adhere to healthcare legislation, CDHO regulations, code of ethics, and practice standards.
Standards guide professional judgment and actions, encouraging self-reflection and continuous development.
Controlled acts involve inherent risks and include procedures like scaling, root planning, and orthodontic procedures.
The eleventh controlled act allows fitting and dispensing dental appliances but requires a dentist's order for orthodontic procedures.
High-speed handpieces may not constitute a controlled act; context of use is critical.
Dental hygienists cannot design or alter dental devices without supervision from a qualified professional.

Early Orthodontics

Pierre Fauchard published "The Surgeon Dentist" in 1728, introducing methods to straighten teeth and the "Bandeau" for arch expansion.
Ettienne Bourdet refined the "Bandeau" in 1757 and was the first to recommend premolar extraction for crowding.
Edward Angle created the first classification for malocclusion and founded the first College of Orthodontics in 1901.
Early braces utilized materials like platinum, silver, gum rubber, wood, ivory, and malleable 18K gold.

Orthodontics Today

Orthodontics is a dental specialty focusing on the guidance and correction of dentofacial structures, as well as the prevention and treatment of malocclusions.

Diagnostic Records Assembly

The assessment is the initial step in orthodontic treatment, aimed at learning about the client and obtaining initial dental records.

Components of Orthodontic Records

Client Interview (Case History): Collects medical, dental, and social histories; identifies chief complaints and barriers to treatment.
Clinical Examination: Includes extraoral and intraoral examinations to analyze oral health and facial features, utilizing extraoral photographs for assessment.
Golden Ratio: Ideal facial proportion approximates 1.6, with measurements assessing symmetry and beauty perceptions through artistic and scientific methods.

Extraoral and Intraoral Photographs

Frontal View: Assesses bilateral symmetry and midline alignment; lip position is crucial for evaluating lower dental appearance.
Profile View: Evaluates jaw position and lip posture relative to esthetic lines; vital for facial proportion analysis.

Initial Assessment Form

A comprehensive table used for documenting client profiles, occlusion classes, dentition status, and existing habits.

Radiographs

Used to assess current dental status, including caries and periodontal issues.
Cephalometric Tracing: Involves angular and linear measurements for orthodontic analysis and requires specific materials like tracing paper and rulers.

Important Ceph Points and Reference Lines

Nasion (Na), Anterior Nasal Spine (ANS), Posterior Nasal Spine (PNS), Menton (Me), and Gonion (Go) are key landmarks in cephalometric analysis.
Understanding stable reference structures is essential for orthodontic evaluations, although errors in landmark identification can affect results.

Orthodontic Study Models

Comprise maxillary and mandibular plaster models and bite registration, used to determine dental symmetry. A transparent ruler grid aids in accurate measurements.

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Description

This quiz covers the essential standards of practice for dental hygienists in the orthodontic setting. Explore key regulations, ethical guidelines, and professional responsibilities as outlined by the CDHO. Test your understanding of how these standards shape professional judgment and actions in dental hygiene.