More types of mobile phones, and the structure can be divided according to speed and low-speed high-speed mobile phones, high-speed mobile dental handpiece using high pressure air driven turbine handpiece for micro turbine speed can be up to 300,000 to 500,000 r / min, bur cutting speed can be up to 15m / s, while the low-speed mobile dental handpiece because it is gear, speed can be transferred per minute for thousands of 30000 rpm.
2013年9月24日星期二
can be used over long teeth
How long can mend teeth?
We know that the teeth rotten hole on the back as soon as possible to the hospital for treatment (fillings). Dental health supplement can be used exactly how long, this is the most concerned about the patient, but also a more complicated issue. Teeth repaired after a short period, and how the function, with a variety of factors. denture teeth The first is timing fillings, ie when the patient visits the extent of dental caries. Location and shape of cavities have a great relationship. Followed by the filling materials, different materials and the bond of cavities vary. Furthermore, that dental cavities before processing. If only carious cavities and the cavity is good, shallow, and not adjacent surfaces of teeth, etc., are only required to clean and remove tooth decay cave organize, prepare cavity, thorough disinfection, with permanent dental materials the cavities were filled. Such a good complement of teeth should be used for life. When the dental pulp or apical lesions reached, as long as thoroughly anti-inflammatory treatment, and finally achieve tight filling, but also can be lifelong. But if severely damaged teeth, tooth hole is too large, too deep, irregular shape, or proximal hole type, then filled with good teeth should be used with caution. Otherwise, biting hard objects prone to splitting or dental fillings fall off. Especially kills nerve or pulp necrosis teeth without a blood supply, the teeth become brittle, so anti-inflammatory teeth after filling, biting hard objects it more likely to cause tooth splitting, filling off, resulting filling failure; even teeth completely split split into the following gums, often leading to tooth extraction. Thus, the success of the dental patient and doctor relationship dental instruments between the two are very closely related. First, the doctor fillings should be strictly and carefully press the formal procedures to operate, and the patient should also be early detection and early dental treatment, filling a good fight in the early carious teeth, to achieve the best results.
2013年9月9日星期一
occlusal examination and occlusal trauma index
1. Check the occlusion
Occlusal examination of patients include: (1) the middle jaw, between the middle jaw, jaw type, the upper and lower dental midline, overlying coverage and other jaw. (2) crowded teeth, twist, shift, partial occlusion disorders. (3) early contact and occlusal interference. Including protrusion posterior and lateral contact with non-working side contacts. (4) The doctor will forefinger on the patient buccal maxillary teeth, so that patients do occlusal movements, tremor teeth, also known as functional tooth mobility.
2. Occlusal trauma to testify
Common to testify include: persistent occlusion discomfort, loose teeth, shift, when the teeth bite tremor and X ray film wedge gap widened periodontal ligament and bone hard board blurred or disappeared. In general, no single unique performance occlusal trauma. dental instruments Currently many scholars believe that the continued increase in tooth mobility and occlusal tooth tremor when checking out a relatively reliable and common result.
Periodontal occlusal trauma index (trauma from occlusion index, TOI): Functional increased tooth mobility + gap widened periodontal ligament.
Periodontal adaptation index (adaptability index, AI): tooth surface wear + bone hard board has widened.
TOI positively correlated with the extent of periodontal destruction, AI negatively correlated with the extent of periodontal destruction.
2013年7月25日星期四
teeth correction stunned important to you
Many types of dental abnormalities or defects, some small, there is a simple, but also complex.
Tooth color abnormalities such as tetracycline, dental fluorosis, discolored teeth and so on. Alignment of teeth abnormalities such as crowding dentition sparse, misplaced teeth and so on. Dental abnormalities, such as twist angle
Turn teeth, tilt teeth and so on.
For example there is a large jaw deformities, including the mandibular prognathism or mandibular prognathism, anti together to open and close, a small jaw and so on. The teeth dental instruments or defects in shape and size, there are teeth
Abnormalities, such as too small teeth, conical teeth, enamel hypoplasia, shaped teeth, a variety of causes crown defect or crack.
Anterior dentition defects such as missing posterior teeth loss and so on. We can say that the above conditions are in need of treatment. Because most of them will not only affect the appearance, but also affect the positive
Normal functioning. Recommended reading: dental scaler malocclusion orthodontic best time
After treatment, teeth or denture to restore form, function and aesthetics are the general principles of dental treatment, cosmetic dentistry is not so simple sense of landscaping, it taking into account the
Or through the restoration of physiological function.
In dental practice includes both cosmetic factors or dental treatment itself objectively also played the role of beauty. Only targeted have to choose their own
Orthodontics is the most important.
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