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Crooked teeth fixed by braces
Orthodontic treatment is still the most conservative and effective way to fix crooked teeth, even though veneers can be an option as a...

Dr Changjie Guo
Jun 14, 2020


Loose space - regain space - maintain space.
Premature exfoliation or extraction of baby tooth can lead to space loss when adjacent tooth moves forwards. As a result of space loss,...

Dr Changjie Guo
Mar 3, 2020


Fix the crooked teeth and close the gaps.
This teenage presented with gaps between teeth and rotation of some front teeth. The best treatment option would be orthodontic treatment with braces. After less than a year treatment, the crooked teeth fixed and the gaps closed. Everyone's happy with the final result. #orthodontics

Dr Changjie Guo
Feb 1, 2020


How to fix a posterior unilateral crossbite?
In a normal bite, the upper teeth sit a little outside the lower teeth at the front and back and on both sides of the mouth. If a few top teeth are growing slightly behind their lower teeth, we call this a crossbite. There are two main types: 1. Anterior crossbite when front upper teeth are sitting behind their lower ones. 2. Posterior crossbite when the back upper teeth are sitting inside the lower teeth. This crossbite may be on both sides (bilateral) or only one side (unil

Dr Changjie Guo
Dec 21, 2019


Orthodontic treatment of impacted teeth.
Impacted teeth means that teeth either has not erupted when expected or cannot erupt because of lack of room, wrong direction or position. Wisdom teeth are most often impacted. The second most common teeth to be impacted are the maxillary canines (upper eyeteeth). If it's not wisdom tooth, orthodontic treatment normally is the treatment option for younger patients. Our case showed orthodontic treatment of impacted teeth. In this case, there were two impacted teeth - one

Dr Changjie Guo
Oct 9, 2019


Stop the thumb or finger sucking habit.
Sucking on fingers or thumbs is healthy and normal in infants. Babies and toddlers stop sucking their thumb by themselves and most children stop somewhere between two and four years of age. However, if thumb or finger sucking habit continues past this age it can alter the normal growth of the jaws and cause significant misalignment of the front adult teeth as they erupt into the mouth, which will require orthodontic treatment. This teenage boy had a long history of thumb suc

Dr Changjie Guo
Jul 17, 2019


Surgical exposure of two impacted teeth.
An impacted tooth is one that fails to erupt or erupts only partially. After third molars (wisdom teeth), canines (eye teeth) are the most commonly impacted teeth. Upper canine teeth are some of the last to come through and therefore have more potential to become impacted and fail to reach their correct position within the upper jaw. The incidence of maxillary canine impaction has been estimated at 2%. The causes for retarded eruption of teeth may be generalized or localized

Dr Changjie Guo
Jun 6, 2019


Fix the crooked teeth.
There are many reasons why teeth can become crooked and there’s no one-size-fits-all answer to this question. They can be genetic influences, jaw growth deformities, patient habits, obstructed airways, chronic mouth breathing and other serious oral health conditions. While some of these factors are beyond our control and braces or other types of orthodontic treatment may be necessary to fix crooked teeth. Orthodontics with braces has been used for decades to straighten teet

Dr Changjie Guo
Apr 14, 2019


Braces to fix unilateral crossbite with functional shift.
Unilateral posterior crossbite with functional shift of the mandible is a common condition. Early correction by expanding upper jaw is the best because it affects how the jaws develop, which may end up with facial asymmetry. A unilateral posterior crossbite with facial asymmetry is difficult to correct with orthodontic treatment alone and orthognathic surgery may be necessary. Unfortunately our patient in this case is an adult with asymmetric facial appearance. Jaw surgery

Dr Changjie Guo
Mar 8, 2019


Thumb Sucking and Finger Sucking Habit.
Babies are born with a reflex to suck any object placed in their mouth. Sucking on fingers or thumbs is normal when children are very young. Most children stop somewhere between two and four years of age. However, if thumb or finger sucking continues past this age it can alter the normal growth of the jaws and cause significant misalignment of the front adult teeth as they erupt into the mouth. Problems caused by thumb or finger sucking Long-time thumb or finger sucking may

Dr Changjie Guo
Dec 1, 2018


Orthodontic treatment - braces.
A beautiful straight smile created by orthodontic treatment - braces ! No more crooked front teeth. More attractive upper front teeth after midline corrected. Clear aligners might not be a good option because of severe crowding and midline problems. #orthodontics

Dr Changjie Guo
Aug 17, 2018


Braces - Give you straight teeth and a confident smile!
This orthodontic case showed how traditional braces fixed teeth with severe crowding. The crooked teeth didn't look good and also created gum problems - gingivitis (reddish around gum lines in "before picture"). Any other options apart from traditional braces? Invisible braces like Invisilign? Unfortunately it may not work well in such a complicated case. In 18 months, crooked teeth were transferred to straight teeth. A confident smile created! #orthodontics

Dr Changjie Guo
Mar 29, 2018


How rapid palatal expansion ( RPE ) works.
This is the result of the orthodontic appliance for rapid palatal expansion ( RPE ). About 8mm maxillary width expansion was achieved in a month with one turn ( 0.25mm ) per day. It's not only correcting the posterior crossbite but also creating space for crowded teeth. The gap between top front teeth showed that the RPE was working very well. But don't worry, the gap will be closed when we put braces on and start straightening the teeth. The link below is how it looked

Dr Changjie Guo
Mar 27, 2018


RPE - Rapid Palatal Expander
A Rapid Palatal Expander (RPE) is an orthodontic appliance that puts pressure on the upper jaw (maxilla) to separate the mid palatal suture by turning a midline screw. It makes the maxilla wider and creat space. RPEs are used often to correct posterior crossbites. This procedure is better to be done at a younger age before the palatal suture becomes fused. With adults, Surgically Assisted Rapid Palatal Expander (SARPE) is needed, which combines an RPE and surgery performe

Dr Changjie Guo
Mar 9, 2018


No more crooked teeth!
Crooked teeth are the most common reason to have orthodontic treatment. With braces, we closed the gaps between top teeth and straightened crowded lower teeth. No more crooked teeth, just a perfect smile! #orthodontics

Dr Changjie Guo
Aug 6, 2017


Crooked teeth fixed by braces.
Crooked teeth fixed by braces - fixed orthodontic appliance. #orthodontics

Dr Changjie Guo
Jul 7, 2017


Braces to fix anterior crossbite.
Crossbite caused two top front teeth hiding behind lower front teeth. Orthodontics (braces) was the best treatment option to fix anterior crossbite in this case. #orthodontics

Dr Changjie Guo
Jun 13, 2017


Temporary anchorage devices - TADs
Temporary anchorage devices (TADs) are used to facilitate the movement of teeth through what is called Skeletal Anchorage. TADs are also known by many names among which are mini-screws, mini-implants, and micro-implants. They are threaded titanium screws that will not corrode in the mouth or be rejected by the body, but they will not integrated with bone like dental implants . They are designed to hold fast in bone and be compatible with the soft tissue through which they pa

Dr Changjie Guo
Dec 19, 2016


Clear Orthodontic Aligners
Clear orthodontic aligners are also known as invisible braces. This treatment does not use metal brackets or wires but straightens teeth with a series of clear and removable plastic aligners instead. In this case, we fixed the crooked lower teeth through a series of 10 aligners during 20 weeks. Clear orthodontic aligners are a very good option especially for cosmetics because no one can notice that you are having an orthodontic treatment but it also has its limitations com

Dr Changjie Guo
Nov 21, 2016


Regain the space!
Early loss of baby teeth due to decays will allow adjacent teeth move into the empty space. When adult teeth come through, the reduced space will be the cause of crooked teeth. To prevent this, we have to regain the space. Space regainer is a fixed appliance to get normal space back for adult teeth to ensure a normal eruption, avoiding crowded teeth. #orthodontics

Dr Changjie Guo
Aug 25, 2016
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