Dentistry

Treatment of overjet by retraction of frontal teeth to temporary anchorage devices (TADs)

Author: Renáta Urban, Vladimíra Schwartzova

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Increased overjet may be caused by excessive proclination of upper incisors with prominent maxilla or on the other hand by microgenia or mandibular retrognathism. The first malocclusion is in adult patients usually corrected by extraction of first premolars and successive retraction of frontal teeth. The second malocclusion in adult patients is correctly treated with orthognathic surgery.
When treating with retraction of frontal teeth, it is essential to assess the amount of anchorage needed. If the movement of distal teeth mesially is restricted, the absolute anchorage secured by TADs is needed. TADs are placed into the bone in the right position. Closed coil springs are placed inbetween the frontal segment and TADs on each side, thus retracting frontal segment without any movement of posterior teeth.

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A two stage non extraction treatment of distoocclusion with proclination of upper incisors (AII/1)

Author: Renáta Urban, Vladimíra Schwartzova

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A two stage treatment of distoocclusion with proclination of upper incisors (AII/1) is very efficient in correctly indicated cases and the timing of the treatment is essential. During the growth spurt the removable functional appliance is placed in the mouth (in this case bionator) to provide the bite shift to AI class and to raise the deep bite by correctly trimmed functional appliance. The second phase of the treatment with fixed appliance is reduced and only the anomalies of the position of individual teeth are corrected.

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Combined orthodontic-surgical treatment of impacted teeth

Author: Renáta Urban, Vladimíra Schwartzova

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Impaction or impacted tooth is a tooth that didn’t erupt into its position in the right time of his physiological eruption, is covered by bone and requires treatment. After precisely locating the position of impacted tooth, the appropriate orthodontic appliance is adapted, the space for impacted tooth is created. With surgical exposure of the tooth, the crown is uncovered and eruption chain is adapted. The pull is activated by elastic thread or other auxiliaries such as Kilroy spring or Monkey hook, that help to move the tooth into required position.

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The Use of the Er:YAG Laser 2940 nm in complex caries removal

Author: Jana Ohlasová, Vladimíra Schwartzová, Silvia Timková

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Significant pain reduction and lack of the vibrations give advantage to LASER cavity preparation. The ideal treatment should be fast, painless and effective. Discomfort of the patient and tendency to protect hard dental tissues can lead to insufficient debridement of the carious lesion, inadequate obturation and failure of the restoration. A carious lesion is usually removed using hand instruments and rotary burs.
Understanding of laser physics and laser-tissues interaction for specific wavelength is required to predict the accomplishment of laser treatment.

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Bisphosphonate osteonecrosis

Author: Vladimíra Schwartzová

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Osteonecrosis of the jaw is a rare, but very severe complication in patients receiving bisphosphonate therapy. This complication significantly restricts food intake and reduces their quality of life. The negative influence of bisphosphonates on jaw bones is still not precisely known and is the subject of research.

Dental Materials

Author: Žaneta Majerníková

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Presentation "Dental materials" is intended to the students of Dental medicine as an outline for the study. Dental materials represents a group of special materials used in dentistry to produce prostheses (include materials for prosthetic) and to treat dental caries (include materials of conservative dentistry).