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ch60
| Term | Definition |
|---|---|
| The function of the _____ is to apply force to either move the teeth or hold them in the desired positions. | arch wire |
| Severe malocclusion and dental facial deformities, both of which can cause social stigma and have a negative effect on a patient’s self-esteem, are examples of which type of adversity? | Psychosocial function |
| Which instrument is used in the placement of elastomeric ligature ties? | Locking hemostat |
| On which teeth are brackets most commonly bonded? | Anterior teeth Premolars |
| Which foods should be avoided by patients with fixed appliances? | Chewing gum Sticky foods Popcorn All of the above |
| After preparing the tooth for bonding brackets, the sealant is placed on the ____ and the bonding material on the _____. | tooth; bracket |
| A cross-bite refers to which condition? | A tooth is not properly aligning with its opposing tooth. |
| Buccal arch wire tubes are located on the bands that surround which of the following teeth? | Maxillary first molar |
| Elastic separators can be left in the mouth for ____ days, and steel can be left in the mouth for _____ days. | 14; 5 |
| When taking photographs, the full direct view includes what? | Intraoral view, with all teeth in occlusion |
| What information is needed for the diagnosis and treatment planning of an orthodontic case? | Medical and dental histories Photographs and radiographs Diagnostic models All of the above |
| What holds dental arch wires in place? | Ligature ties Elastomeric ties |
| What is the most common type of attachment for fixed appliances? | Bonded bracket |
| What is the purpose of the headgear tube? | It stabilizes the ends of the facebow. |
| Before placement of orthodontic _______, separators may be necessary. | bands |
| What instrument is used to disengage wire ties when removing an arch wire? | Ligature cutter |
| Which of the choices represents a developmental cause of orthodontic problems? | Congenitally missing teeth |
| What is the purpose of a cervical traction headgear device? | To move the maxillary first molar distally |
| In Class _____ occlusion, or distoclusion, the mandibular arch and the body of the mandible are in bilateral, distal relationship to the maxillary teeth. | II |
| Which statement is incorrect about sticky candy and gum use during orthodontic treatment? | It loosens bands, pulls out ligature ties, and bends arch wires. |
| What is the purpose of the arch wire? | It is a pattern that gives the dental arch its shape. |
| What is class I occlusion? | It is normal occlusion. |
| Which type of arch wire would not be used to position the crown and root of the teeth in final stages of treatment? | Round |
| Which statement is incorrect regarding the cut ligature pigtail? | Tuck toward the occlusal. |
| What does a labial hook on the facial surfaces of the first and second molar bands and brackets do? | It holds interarch elastics. |
| Arch wires that are made of _____ are useful in early stages of treatment because they are flexible. | nickel titanium |
| Which instrument removes elastomeric ring separators? | An orthodontic scaler |
| Orthodontic fixed appliances are also known as what? | Braces |
| Wire ligatures should be twisted and cut, leaving a _____-mm pigtail. | 4- to 5 |
| What is an advantage of using the patient’s model to select bands? | This process eliminates the lengthy process at chairside. |
| Which of the following is incorrect about customized aligners? | They can be used for all types of orthodontic treatments. |
| How is a patient instructed to clean under the arch wire? | Use an interproximal brush. Use a floss threader. Use a Waterpik. All of the above are correct. |
| In ______ malocclusion, the mesiobuccal cusp of the maxillary permanent first molar occludes in the interdental space between the distal cusp of the mandibular first permanent molar and the mesial cusp of the mandibular second permanent molar. | Class III |
| Beyond the age of ____ years, thumb and finger sucking will affect the upper facial structure and upper anterior teeth. | 5 |
| Which step is first in preparation for bonding the brackets to the teeth? | Polish using a fluoride-free paste. |
| _____ are attached to hooks or buttons that are secured on the band or brackets. | Elastics |
| What is the purpose of an orthodontic positioner? | To retain the teeth in their desired position |
| Which of the following is used to tie the arch wire into orthodontic brackets? | Wire ligatures Elastomeric ligatures |
| Why is glass ionomer cement the most commonly used cement for banding orthodontic bands? | It contains fluoride that aids in preventing decay under the bands. It has adequate strength to aid in retention with enamel. |
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ARIGON5248