Hilgers Pendulum Appliance
The Pendulum Appliance is used to distalize the molars for the correction of Class II.
Effective arch development is achieved with rests on the premolars and a .032 TMA wire embedded in acrylic. It produces a wide swinging arc of force from the midline of the palate to the upper molars producing a pendulum motion of the spring. An adjustment loop can be added to the spring to aid in rotation of the molars. Lingual sheaths are spot welded onto the band and can be provided by the lab.
DESCRIPTION
Treatment & Care
Pre-activation of the springs should be done before insertion. Bend the spring 90 degrees, so they are parallel to the midline of the palate. Be aware that 1/3 of compression is lost during placement. Insert the spring into the lingual sheath using finger pressure and a Weingart plier. Use an elastic O-ring to hold the spring to the band.
The patient should be seen every three weeks, and reactivation should be done if needed. If needed, hold the center of the helix with a bird beak plier and push the spring distally.
This appliance should be cleaned every day with toothpaste and a soft toothbrush, morning and night. Encourage the patient to give enough time to clean thoroughly around the appliance, gums, teeth, and bands to maintain proper hygiene and prevent inflammation. 3 minutes is recommended.
Materials
- Wire: American Orthodontic Chromium Cobalt
- Springs: .032″ Titanium Molybdenum Alloy Arch wire Round
- Acrylic: JBC Monomer and Polymer
Attachment & Band options:
- AO Maximum Retention Bands
- Leone Web Bands
- AO .022 Slot w/ Hook
- AO Headgear and .022 Slot with Hook
- AO MBT w/hook
- AO Double Slot w/ Hook
Nance Appliance
The nance appliance is used to prevent the first molars from drifting in an anterior into spaces left by the primary molars. A wire is soldered to both maxillary first molar bands and extends towards the anterior to the deepest part of the palate where it is attached to an acrylic button. The acrylic button is placed against the palate preventing the forward drift of the molars.
DESCRIPTION
Treatment & Care
Dental appliances prevent teeth from moving or to shift teeth into a the proper place. While there are several types of appliances, a Nance appliance has a very specific function and can be used to expand or rotate the upper molars, or to hold molars in place. The most common use is as a space maintainer to prevent upper molars from drifting forward.
The Nance appliance fits comfortably along the roof of the mouth with bands that are placed on the upper arch of the two back molars. A wire connects the bands and a small piece of acrylic pad placed in the pre-maxillary region for stability.
Patients with the appliance should make sure to pay special attention to the roof of their mouth while brushing to prevent gum irritation. They should practice good oral hygiene and avoid drinking carbonated beverages or avoid eating hard or sticky food. Eating or drinking these types of food can damage the appliance.
Materials
- Wire: American Orthodontic Chromium Cobalt
- Springs: .040″ Titanium Molybdenum Alloy Arch wire Round
- Acrylic: JBC Monomer and Polymer
Attachment & Band options:
- 040 Palatal Wire
- Soldered or Lasered to
- Bands (not included in price)
- T-Traditional Pink or T-Clear Palatal Acrylic Pad
Passive Lingual Arch
A lingual arch connects two molars in the upper or lower dental arch. The lower lingual arch (LLA) has an arch wire adapted to the lingual side of the lower teeth. In the upper arch the arch wire is usually connecting the two molars passing through the palatal vault and is commonly referred as "Transpalatal Arch" (TPA).
TPAs could possibly be used for maintaining transverse arch widths, anchorage in extraction case, prevent buccal tipping of molars during Burstonian segmented arch mechanics, transverse anchorage and space maintenance.
DESCRIPTION
Treatment & Care
The passive lingual arch is designed to rest on the cingula of the incisors only. The arch wire between the incisors and molars must be out of the bite and should not prevent the premolars and permanent canines from erupting. LLA is frequently used as a space maintainer for the lower teeth. In such a case a LLA maintains the molar position. LLA and TPA can also be used to stabilize molar position in the attempt to avoid side effects that can take place during orthodontic therapy. As a space maintainer LLA is frequently used in cases where an early loss of the second deciduous molar takes place. In such a case LLA prevents the permanent molars from migrating mesially (forward) thus blocking off the eruption space for the premolar teeth. LLA is also used in order to maintain the so-called "Leeway space", which is the extra space available in the arch when the deciduous molars are exfoliated and replaced by smaller permanent premolars.
This appliance should be cleaned every day with toothpaste and a soft toothbrush, morning and night. Encourage the patient to give enough time to clean thoroughly around the appliance, gums, teeth, and bands to maintain proper hygiene and prevent inflammation. 3 minutes is recommended.
Materials
- Wire: American Orthodontic Chromium Cobalt
- .036 Palatal Wire
Attachment & Band options:
- AO Maximum Retention Bands
- Leone Web Bands
- AO Headgear and 0.22 Slot with Hook
- AO MBT w/hook
- AO Double Slot w/hook
Space Maintainer
The space maintainer is used in edentulous areas, resulting either from exfoliation or extraction, to prevent adjacent teeth from drifting into the space which can spur orthodontic issues like teeth crowding.
Space maintainers do exactly what their name implies: they maintain the space left open by premature tooth loss so that permanent teeth can erupt properly. Without space maintainers, permanent teeth can form poorly. When a primary tooth is missing, surrounding teeth might become loose because there is less support overall.
DESCRIPTION
Treatment & Care
Space maintainers are not permanent, and they are removed when permanent teeth erupt. There are two types of pediatric space maintainers that your dentist may recommend, fixed and removable. As the names suggest, the first one stays in the mouth although not permanently while the other is removable.
This appliance should be cleaned every day with toothpaste and a soft toothbrush, morning and night. Encourage the patient to give enough time to clean thoroughly around the appliance, gums, teeth, and bands to maintain proper hygiene and prevent inflammation. 3 minutes is recommended.
Materials
- Wire: American Orthodontic Chromium Cobalt
Attachment & Band options:
- AO Maximum Retention Bands
- Leone Web Bands
- AO .036 Chrome-cobalt solder to a band
Pedo Partial
A Pedo Partial is a fixed appliance for children. They are used to replace teeth lost due to extensive cavity, decay, or injury. This appliance restores the natural appearance of teeth and serves as a holding space until permanent adult teeth can come in properly without crowding.
Permanent front teeth usually come out around the age of seven, and if a child loses their teeth prematurely, they may have to spend years with an empty space where that tooth was lost. This could affect the child’s smile and self confidence. Such children could benefit from the use of pediatric partials to replace teeth that have been lost prematurely.
DESCRIPTION
Treatment & Care
After the baby teeth are removed, a special mold of the child’s teeth are taken in the office and sent to a laboratory. The laboratory can then custom tailor the pediatric partial denture, making it look natural and beautiful. The child is then brought back into the office to try it on and make any necessary adjustments. Once the fit is perfect, the pediatric partial denture is secured to the child’s permanent teeth. It remains there until the permanent teeth begin to erupt, at which point the dentist can remove the partial.
Like every orthodontic appliance, pediatric partial dentures can serve as a plaque trap, with food and bacteria building up around it. Thus, it is especially important that all surfaces of the pediatric partial be cleaned daily with a toothbrush. Often, children need the help of their parents to adequately brush around the appliance.
Materials
- Wire: American Orthodontic Chromium Cobalt
Attachment & Band options:
- AO Maximum Retention Bands
- Leone Web Bands
- AO .036 or .040 Chrome-cobalt solder to a band