FAQ (frequently asked questions)

Regarding Standard Intraoral Balancing Appliance (a.k.a. IBA)


# What is a standard intraoral balancing appliance (IBA)?

The standard intraoral balancing appliance (ex. TBA, OBA, ABA, OAA) is an important part of your treatment.  The purpose of IBA (mouth guard) is to keep TMJ balance stable after the use of CBA in between each session. It is prescribed along with the individually customized intraoral appliance (i.e. CBA) to help restore the balance in your temporomandibular (TMJ) joints and the total body function. 


# What are the various types of standard intraoral balancing appliances (IBA)?

There are several types of IBA and you will be prescribed one that is most suitable for your condition. The four main types available are TBA, OBA, ABA, and OAA. Under each type, there are a number of variations available depending on the size of the patient’s mouth and the nature of the malocclusion requiring treatment. 


# How are the standard intraoral balancing appliances (IBA) different from the individually customized intraoral balancing appliance (CBA)?

 The standard intraoral balancing appliances are different from the customized intraoral appliance in a number of ways.

Customized Intraoral Balancing Appliance


Standard Intraoral Balancing Appliances


1. It is made new during each treatment session.  1. It is prescribed once at the beginning of your treatment.
 2. Color: Blue 2. Color: Transparent
 3. Non-reusable: It is discarded once its treatment effects have dissipated.  3. Re-usable: It is worn in between your treatment sessions.
 4. The treatment progresses rapidly.  4. The treatment progresses slowly.
 5. It MUST BE REMOVED IMMEDIATELY once you begin to experience “deviation” symptoms.  5. It has no risks associated with “deviation” and thus, can be worn continuously.


# How do I use the standard intraoral balancing appliance (IBA)?

  1. Do not bite down on the appliance. It should sit gently between your teeth.
  2. Do not wear the appliance while eating.
  3. Clean the inside and outside of the appliance daily by brushing it with your toothbrush.
  4. It is encouraged that the appliance be worn as many hours in a day as you can handle (including while asleep at night) in order to maximize the treatment effect and speed to recovery.
  5. Practice correct posture while wearing the appliance in order to maximize the treatment effect.
  6. Practice the prescribed stretching exercises regularly while wearing the appliance in order to maximize the treatment effect.


# Can I order the standard intraoral balancing appliance (IBA) online without visiting your clinic?

NO, you cannot order it online. We’re getting so many emails asking if they can purchase it online and treat themselves (….?) without visiting our clinic.

First off, there are nearly 50 different appliances. The IBA is varied with its sizes, occlusion types, hardness, and treatment stages. There is no way to figure out which appliance to prescribe without having a proper examination in person.

More importantly, Dr. Lee needs to give the patient diagnostic tests to see if the appliance will work for the patient.

IBA plays a very important role in the course of treatment but the treatment is not just about the IBA (standard intraoral balancing appliance). The core treatment is customized balancing appliance (CBA) that Dr. Lee makes in each session with the 0.05mm precision for the optimal freeway space. The main purpose of IBA is to keep TMJ balance stable after the use of CBA in between each session.

*For those patients with intractable diseases such as dystonia or Tourette Syndrome, it’s hard to gain conspicuous results only with the IBA.


# What are the potential temporary side effects while wearing the standard intraoral balancing appliance (IBA)?

1. Any dental discomfort including but not limited to toothache, looseness of teeth, swollen or inflamed gums, etc.

– This is an initial and normal response of your body to the intraoral appliance and will usually resolve in a couple of weeks.

– The discomfort is typically greater for patients with severe malocclusion.

-OBA is often associated with greater discomfort than TBA.

-If the discomfort is unbearable, temporarily disuse the intraoral appliance and slowly reintroduce it by gradually increasing the number of hours it is worn.

2. Any discomfort associated with biting and chewing difficulties

– This is a normal and temporary response as your bite alignment normalizes and will usually resolve in a few days.

3. Nausea

– Temporarily remove the intraoral appliance and reintroduce it when the nausea subsides. Repeat this multiple times and the nausea should eventually diminish.

4. Increased salivation

– Try not to spit out the excess saliva but keep swallowing as usual

5. Dry mouth in the morning especially when the appliance has been worn overnight

– This is more common in elderly patients. Hydrate yourself regularly by drinking warm water throughout the day.

6. The appliance is found spat out while sleeping

– A surgical mask is commonly worn in Korea in order to prevent exposure to air pollution and can be easily purchased at a local pharmacy. Wear a surgical mask over your mouth when sleeping for approximately a week until your body becomes accustomed to the appliance.




* When you wear standard intraoral balancing appliance, make sure to wear it correctly:

Make sure the letter (TBA/OBA/ABA/OAA) is not upside down.

The letter is supposed to be the upper side of the appliance




Regarding Customized Intraoral Appliance


# What is a customized intraoral appliance?

It is an intraoral appliance that is individually molded using the Exafine Putty during your treatment. The customized intraoral appliance used in our clinic is called the Cervical Balancing Appliance (CBA). It is a key treatment component of FCST.


# How does the Cervical Balancing Appliance (CBA) work?

– The CBA is prepared once the patient’s temporomandibular joints have been balanced to optimal height. The patient is required to sit with the correct posture while the CBA is being prepared while CBA is made.

– CBA is individually prepared to provide comfortable support for the teeth along physiologic inclination between upper and lower incisors, to provide a comfortable contact along the occlusal plane between upper and lower molars, and to induce the mandible to the balanced position (CR, CO) in relation with the cranium.

– CBA provides optimal support to induce a multidimensionally balanced position to your TMJ in relation to each individual’s systemic conditions.





# I live in OOOOOO. Could you recommend any doctor who does FCST in my country?

– Currently, there is no doctor who does FCST in other countries. Plus, our clinic does not have a list of other doctors in other countries.