Orthodontic Forsus Fatigue Resistant Device.pptx

Forsus are a rod with a coil spring around it and are attached to the braces to help correct the bite. They move the upper teeth back and the lower teeth forward.
The forsus is used to correct class 2, patient’s jaws that the upper jaw and teeth protrude over the lower jaw and teeth.

It is not used in all cases but the more extreme cases that the orthodontist thinks that normal orthodontic elastics may not be able to correct or the forsus would correct it faster.

This can reduce time in braces limiting or basically eliminating the use of regular orthodontic elastics
The forsus helps the patients that may not remember to wear a headgear or the elastics and can also possibly prevent the need for expensive jaw surgery in some case.

The appliance is made to align the teeth and reduce the overbite and promote the proper jaw growth in patients. It is mostly used in adolescents because that is the time the growth of the jaw in mainly taking place.

Once the appliance is placed in the patient’s mouth it needs to stay there for 6 to 9 months depending on the severity of the case. 
Class II division I malocclusion, deep and open bites
Maxillary distalization appliance
Maxillary anchorage in extraction cases
Anchorage for Mandibular incisors
Early intervention in severe Class II
Maxillary and mandibular asymmetries

1. Orthodontic Forsus Fatigue Resistant Device ACHIEVED BY: Dr.Maen Dawodi

2. Forsus are a rod with a coil spring around it and are attached to the braces to help correct the bite. They move the upper teeth back and the lower teeth forward. Forsus is an appliance used to help correct an overbite and class II What is Orthodontic Forsus

3. Fatigue Resistant Device

4. The forsus is used to correct class 2, patient’s jaws that the upper jaw and teeth protrude over the lower jaw and teeth. It is not used in all cases but the more extreme cases that the orthodontist thinks that normal orthodontic elastics may not be able to correct or the forsus would correct it faster. This can reduce time in braces limiting or basically eliminating the use of regular orthodontic elastics What Does The Forsus Appliance Do?

5. The forsus helps the patients that may not remember to wear a headgear or the elastics and can also possibly prevent the need for expensive jaw surgery in some case. The appliance is made to align the teeth and reduce the overbite and promote the proper jaw growth in patients. It is mostly used in adolescents because that is the time the growth of the jaw in mainly taking place. Once the appliance is placed in the patient’s mouth it needs to stay there for 6 to 9 months depending on the severity of the case.  Cont .

6. Case selection for Forsus Use Class II division I malocclusion, deep and open bites Maxillary distalization appliance Maxillary anchorage in extraction cases Anchorage for Mandibular incisors Early intervention in severe Class II Maxillary and mandibular asymmetries

7. Need for Class II Correctors in Young Adults Four main indications of Class II correctors in young adults, namely: • 1- Skeletal Correction in patients with mild skeletal Class II malocclusion. Class II cases with deficient mandible (LANB 4-6 degrees) are suitable for this approach. However, obvious surgical cases are a contra-indication to such treatments. It is also important to consider that these individuals should not be seeking drastic changes in their facial appearance.

8. • 2- Dental Class II malocclusion correction only. Obviously, the amount of skeletal correction achievable in adults is much less than in adolescents (only 30-40% skeletal changes may be expected). Therefore, the best results in young adults are those cases which have mainly a dental component of Class II without an underlying skeletal discrepancy. . Cont .

9. • 3- Correction of Class II subdivision malocclusion patients having a mandibular midline. shift. In these cases, by selective differential force selection on either side, subdivision correction becomes more predictable, while addressing the lower midline. • 4- Class II dental malocclusion requiring maxillary molar distalization. Again, in these cases, selective molar distalization, on one side or bilaterally, is easily effected by minor variations during appliance installation Cont .

10. Duration of Forsus Class II Corrector Usage Most clinicians prefer to keep Forsus device only for 4-5 months in majority of patients. Based on these lines, I prefer leaving the Forsus device for an average time period of 7-8 months.

11. 1. Ruf S, Pancherz H 1999a Dentoskeletal effects and facial profile changes in young adults treated with the Herbst appliance. Angle Orthodontist 69:239-246 2. Ruf S, Pancherz H 2004 Orthognathic surgery and dentofacial orthopedics in adult Class II div 1 treatment: mandibular sagittal split osteotomy versus Herbst appliance. American Journal of Orthodontics and Dentofacial Orthopedics 126:140-152 3. Frye L, Diedrich PR, Kinzinger GS 2009 Class II treatment with fixed functional orthodontic appliances before and after pubertal growth peak – a cephalometric study to evaluate differential therapeutic effects. Journal of Orofacial Orthopedics. 70(6): 511-27. References

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