Treatment Info


Orthodontic Treatment Options

Whether you decide to go with Invisalign® or braces, we have options! The Smile Agency even offers treatment without appliances or surgery such as TADS, also known as mini-implants. Either way, we are here to make sure that the treatment plan Dr. Guinn prepares for you will meet your lifestyle, look and budget.

Airway Friendly

Dr. Karen Guinn is passionate about advancing and maximizing the art & science of Orthodontics.

She understands that the Orthodontic Sleep Apnea program can change the airway and address the underlying source that causes sleep apnea and difficult breathing. This approach is intended to provide patients with immediate relief from Obstructive Sleep Apnea (OSA). If you are looking to relieve your sleep apnea, contact Dr. Karen Guinn at The Smile Agency in Pasadena or West Covina for some of the best relief from airway orthodontics.

Obstructive Sleep Apnea (OSA) has emerged as one of the most widespread and costly health issues for adults and children in the U.S.A. Studies have shown that OSA carries a strong genetic component and is known to involve more than 8 million Americans of all ages. This condition is characterized as the obstruction of the upper airway associated with repeated gaps in breathing; therefore interrupting sleep and contributing to many side effects and various medical conditions; such as:

  • Obesity/ Diabetes
  • Concentration
  • Stroke/ Heart Attack
  • Fatigue and or Insomnia

If you or a loved one might be suffering from sleep apnea, be sure to make an appointment with an orthodontist that Pasadena trusts, like Dr. Karen Guinn.



Our office is pleased to offer our patients passive self-ligating Damon System braces. Damon braces use a slide mechanism to hold the archwire, reducing the amount of pressure exerted on the teeth and allowing the teeth to move more freely, quickly, and comfortably. If you are looking to get some of best results from Damon braces Pasadena & West Covina patients can depend on, visit Dr. Karen Guinn and her team at The Smile Agency in either Pasadena or West Covina. Thanks to these innovative new braces, achieving your perfect smile can be faster and easier than you ever thought possible!

  • Great results in less time. Depending on your case, this may mean a savings of many months. After analyzing your specific needs, we will be able to provide you with a
  • treatment plan that will have you smiling soon!
  • Damon braces allow freedom of movement – resulting in faster results with gentler forces.
  • Precise and effective – We can reduce the need for many of the time-consuming and complicated procedures that are used with traditional braces.
  • Fewer adjustments are required – As a result, your appointments will be faster and fewer in number.
  • Less discomfort than traditional braces. Also, Damon self-litigating braces are small, very comfortable, and easy to keep clean.
  • Self-ligating braces — A world without elastic ties!
  • Self-ligating braces use a specialized clip in place of elastics to help the archwire guide teeth into place. These clips help reduce the amount of pressure being placed on the tooth and require fewer adjustments because there are no elastics to replace.


Damon passive self-ligating braces eliminate the need for elastic or metal “ties.” With Damon tie-less braces you can experience treatment without tightening.

Treatment Time

While the time needed in braces will vary from case to case, treatment time with the Damon System is typically much faster than with conventional braces. Also, far fewer appointments are required during treatment, making your Damon experience convenient and hassle-free.


Even though the Damon System works so quickly, the use of gentle, low- friction force means less discomfort for you. Very light “shape memory” titanium wires are used, gently guiding your teeth to their ideal position.


Damon self litigating braces are designed to be discreet, comfortable, and easy to keep clean. Without the elastic ties, which attract and collect plaque, Damon braces make dental hygiene easy during treatment. Plus, the Damon System is available in clear braces for patients who want a great smile without sacrificing aesthetics. If you are looking to achieve a completely metal-less, clear smile, look into Invisalign for adults or Invisalign Teen for our younger Pasadena & West Covina patients.




Making the decision to straighten your teeth is much easier when you know that Invisalign® treatment lets you live your life the way you want to. With Invisalign aligners, you don’t need to worry about the gum and mouth irritation other teeth-straightening methods can cause.

Invisalign® clear aligners take a modern approach to straightening teeth, using a custom-made series of aligners created for you and only you. These aligners are made of smooth, comfortable and virtually invisible plastic that you simply wear over your teeth. Wearing the aligners (and switching to a new set typically every week) will gradually and gently shift your teeth into place, based on the exact movements your orthodontist plans out for you.

If you would like to learn more details about Invisalign®, visit our main Invisalign® page here.


TMJ Therapy 

TMJ Therapy - Temporomandibular Joint Disorder

The temporomandibular joint is the hinge joint connecting the lower jaw to the temporal bone of the skull, which rests in front of the ear on each side of your head. Muscles surrounding and attached to this joint are responsible for the smooth movement of the jaw, allowing you to chew food, talk and yawn.

Temporomandibular joint disorder, more commonly known as TMJ, occurs when the complex system of muscles, ligaments and bones that control the jaw are not working properly. TMJ can be caused by grinding or clenching of the teeth, head and neck posture, injury to the jaw, and stress, which can often cause tightening of the facial and jaw muscles.

Although there is no single cure for TMJ syndrome, Dr. Guinn is an excellent resource for discussing treatment options.


Invisalign Teen®

Dr. Guinn is a Certified Premier Invisalign Teen®
Provider in Pasadena and West Covina

Bummed out about having braces? Invisalign Teen® gives you a whole new way to wear braces for a “clearly” amazing smile! Dr. Guinn provides some of the best smiles from Invisalign Teen® Pasadena teens can rely on. Schedule a consultation with Pasadena orthodontist, Dr. Karen Guinn, today!

If you would like to learn more details about Invisalign Teen®, visit our main Invisalign® page here.



Removable Retainers

Once the active orthodontic appliances are removed, the patient will receive retainers to stabilize the dental correction. Because the bone and soft tissues surrounding the teeth are stabilizing for several months after braces are removed, it is imperative that the retainers are worn as instructed. Failure to wear the retainers may result in undesirable movement of the teeth, which could necessitate re-treatment.

How retainers are worn

Because teeth can continue to move throughout life, we feel that individuals who have undergone orthodontic therapy should wear retainers indefinitely. A patient should wear retainers all the time for one year following the removal of braces.

After approximately one year, the patient can wear the retainer just at night. This is to allow the wisdom teeth to develop without ruining the patient’s beautiful smile. #DrName will see you every six to nine months to make recommendations on the wisdom teeth and an X-ray will be taken every one and a half years.)

Once the wisdom teeth have been decided on, wear your retainer at least one night per week. This is because, as you get older, the muscles that surround your teeth will get tighter and place pressure on your teeth, causing them to move or crowd.

How to care for retainers

Retainers are made of a thermoplastic material that is sensitive to excessive heat, so they should be kept away from heaters, dishwashers, car dashboards or any place where the temperatures exceed 115 degrees (Fº).
Retainers should be kept in the proper retainer case when they are not in the patient’s mouth.
Keep away from any family pets, as they like to chew on them.
Clean before and after placement in the mouth. Because the material used for fabrication is slightly porous, plaque tends to cling to the surfaces. Gentle scrubbing with a toothbrush and a mild liquid soap will remove the plaque. A denture cleaning solution, such as Efferdent, will aid in the removal of plaque and tartar. Be sure to rinse the retainers thoroughly after cleaning to remove any cleanser residue.
Because retainers are worn for years, they will need periodic replacement. Your original treatment contract includes one set of retainers after the braces are removed. If the retainers are lost or damaged due to neglect, there will be a charge for replacement. If the retainers become loose or break, contact our office immediately.

Fixed retainers (Bonded Wire)

This wire should stay on forever. The only exception is if your family dentist says you are not keeping it clean and it is beginning to cause gum or bone problems. If this should occur, please have the wire removed and replace it with a removable retainer. The removable retainer should then be worn as #DrName prescribes. The fixed wire will protect the teeth as the patient gets older and your facial muscles get tighter. Please have this wire monitored by your family dentist at your six-month check ups.

Habits or Conditions that Require Stronger Retention

Mouth breathing
Clenching and/or grinding of teeth (muscle hyperactivity)
Tongue thrusting, low tongue posture or abnormal tongue posture
Playing a musical instruments with a reed
Lip sucking
Pen or pencil biting
Spacing between the teeth prior to treatment
Severely rotated teeth
Our goal is to help your smile stay beautiful and healthy for a lifetime. Your cooperation is essential in order to achieve this goal.

Dental examinations and cleanings

The patient should continue with proper oral hygiene procedures at home, to include thorough brushing and flossing techniques. His or her family dentist should see the patient at least every six months for cleaning and dental examinations.


Sleep Apnea

Obstructive Sleep Apnea & Snoring

We are happy to announce that The Smile Agency is now providing oral appliance therapy for obstructive sleep apnea and airway orthodontic treatment (arch development) for upper airway resistance and other related sleep related disorders. Oral appliance treatment can be used as an alternative therapy for non-compliant CPAP users, it is both recognized and accepted by the American Academy of Sleep Medicine (AASM).

The oral appliance therapies (OAT) that we use are the most advanced FDA-cleared appliances on the market today. These appliances keep the airway unobstructed during sleep by posturing the mandible in a forward position.

With the mandible held forward, the soft palate is unable to collapse and obstruct the airway; thus the open airway space decreases sleep apnea symptoms and provides immediate relief during sleep.

Snoring affects millions of people of all ages, both male and female. Oral appliance therapy is the most common treatment for the most severe snoring problems. Treatment procedures range from changing your sleep patterns to utilizing orthodontic-related appliances that help open the airways during sleep.

Results from Sleep Apnea and Orthodontic Appliance therapy has proven to be very positive:

  • Increased restful sleep
  • Increased academic performance
  • Decreased daytime fatigue
  • Increased energy
  • Increased motivation
  • Weight loss
  • Decrease in blood pressure

If you feel you or a loved one could have Sleep Apnea or Airway Obstruction do not hesitate to contact our office immediately! The Smile Agency has two convenient locations to serve you. Ask for our OSA Treatment Coordinators-

1175 E. Green Street, Pasadena, CA 91106 (626) 578-1687
Ask for Silvia ~

1290 S. Sunset Ave, West Covina, CA 91790 (626) 856-1956
Ask for Dana ~


Early Treatment

Phase l - Early Interceptive Treatment

Actual Patient Transformation 1

Actual Patient Transformation 2

Actual Patient Transformation 3

Actual Patient Transformation 4

Actual Patient Transformation 5

Actual Patient Transformation 6

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