نتایج جستجو برای: tissue expander
تعداد نتایج: 920024 فیلتر نتایج به سال:
The aim of this study was to evaluate the short- and long-term treatment effects of rapid maxillary expansion (RME) on the soft tissue facial profile of subjects treated with a modified acrylic-hyrax device. The sample comprised 10 males and 10 females in the mixed dentition. Their average age was 9.3 years ± 10 months pre-treatment (T1), with a narrow maxilla and posterior crossbite, treated w...
Background. The essential drawbacks of conventional tissue expansion, a technique widely used in reconstructive surgery, are its significant duration and the high complications rate. The experience of our clinic covers 329 patients treated with this method from 1987 to 2006. The mean time of expansion was previously 72 ± 2 days (± SD) and the rate of local complications was 38.6%. We applied ef...
This paper describes the experimental efficiency of a compact organic Rankine cycle (ORC) system with a compact rotary-vane-type expander. The compact ORC system can be used for power generation from low-temperature heat sources such as waste heat from various small-scale heat engines, fuel cells, electric devices, and solar thermal energy. The purpose of this study is to develop an ORC system ...
OBJECTIVE To determine if there is a significantly different effect on vertical changes during phase I palatal expansion treatment using a quad helix and a bonded rapid maxillary expander in growing skeletal Class I and Class II patients. MATERIALS AND METHODS This retrospective study looked at 2 treatment groups, a quad helix group and a bonded rapid maxillary expander group, before treatmen...
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