ROTH PHILOSOPHY
R02
Attractive Tooth Alignment Attractive, Beautiful Tooth Alignment
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fig.1
fig.201R02
Simply aligning teeth does not guarantee a beautiful smile
The alignment of teeth is important for a beautiful smile. However, teeth are not simply arranged like tiles in a game of mahjong. Each tooth has a distinctive shape, and to properly position and align them, it is necessary to consider the sequence of alignment: incisors → canines → premolars → molars, as well as the shape of the dental arch and the occlusal relationship of the upper and lower teeth.
fig.1
First and foremost, the shape of the dental arch is crucial. While there are some individual variations, a slightly wider arch from canine to canine is required, as shown here. If this arch width is too narrow, it cannot create a beautiful impression when smiling.
fig.2
The labial inclination (torque) of the upper incisors is also important; this angle, where the incisal edges of these incisors are slightly anterior to their cervical regions, creates a rich, expressive smile. Similarly, the incisal edges of the lower incisors should also be slightly inclined forward relative to their cervical regions.
Summary
- A wide anterior dental arch shape
- A stable jaw position
- Stable temporomandibular joints, which are a cornerstone of masticatory function
A beautiful smile is created only when all these elements are present. Of course, this also improves the longevity of dental health and reduces the risk of recession of the periodontal tissues by preventing undue stress.
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fig.1
First and foremost, the shape of the dental arch is crucial. While there are some individual variations, a slightly wider arch from canine to canine is required, as shown here. If this arch width is too narrow, it cannot create a beautiful impression when smiling.
-
fig.2
The labial inclination (torque) of the upper incisors is also important; this angle, where the incisal edges of these incisors are slightly anterior to their cervical regions, creates a rich, expressive smile. Similarly, the incisal edges of the lower incisors should also be slightly inclined forward relative to their cervical regions.
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Summary
- A wide anterior dental arch shape
- A stable jaw position
- Stable temporomandibular joints, which are a cornerstone of masticatory function
A beautiful smile is created only when all these elements are present. Of course, this also improves the longevity of dental health and reduces the risk of recession of the periodontal tissues by preventing undue stress.
Featureof the Roth Philosophy
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Before
After
R01
Face Design
Strong Focus on Facial Impact
When considering the principal region of the face—from the eyebrows to the chin—the tooth crowns and roots account for nearly 40% of the area. Therefore, moving the teeth has a significant impact on overall facial appearance.
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R02
Attractive Tooth Alignment
Attractive, Beautiful Tooth Alignment
Simply straightening the teeth does not automatically result in a truly beautiful tooth alignment. A well-formed dental arch, a stable mandibular position, and healthy, stable temporomandibular joints (TMJs) contribute to a beautiful smile and promote the health of the teeth and periodontium.
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R03
Beautiful Smile
Lips and Tooth Alignment in the Smile
The relationship between the lips and tooth alignment is surprisingly important. It can make a significant difference in the appearance of the smile.
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R04
Stable Jaw Position
The importance of mandibular position
While the alignment of the teeth is important, it is essential to first assess the condition of the TMJs. This approach is similar to conducting a soil survey before building a house.
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R05
Imaging
CT and MRI
In addition to cone-beam CT, which offers high accuracy with low radiation exposure, MRI is widely available in Japan and can be performed at a lower cost than in other countries. This allows us to thoroughly assess the condition of the TMJs.
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Before
After
R06
Optimum Timing
The Right Timing for Treatment
It is important to identify the stages of a child’s growth—particularly the growth of the mandible (lower jaw)—and to tailor the treatment plan and procedures accordingly.
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Before
After
R07
Early Treatment
Early Treatment for Children
Early treatment is recommended for cases in which treatment would become more difficult later, or in which leaving the condition untreated would place a significant burden on chewing function and the TMJs.